0001049521-24-000017 | 10-Q | XBRL Viewer

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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023	Jun. 30, 2023	Jun. 21, 2023	Mar. 14, 2023	Sep. 27, 2022
Significant Accounting Policies [Line Items]
Limit on purchased receivables						$ 60,000	$ 30,600	$ 20,000
Factored accounts receivables	$ 44,229	$ 24,502	$ 44,229	$ 24,502
Factoring fees	375	179	1,636	317
Contract asset balances	325,441		325,441		$ 382,558
Gross Billing, Agent Transaction			386,749
Revenue, Performance Obligation Satisfied over Time			329,632
Contract liability balance	71,218		71,218		$ 57,142
Revenue recognized in the contract liability balance	10,170	$ 2,681	41,413	$ 10,418
Remaining performance obligations	$ 793,458		$ 793,458
Antidilutive securities excluded from computation of earnings per share (in shares)	2,711	792	2,551	1,873
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-12-30
Significant Accounting Policies [Line Items]
Remaining performance obligations, percentage	53.00%		53.00%
Remaining performance obligations, period of satisfaction	12 months		12 months
Minimum
Significant Accounting Policies [Line Items]
Standard warranty period			12 months
Extended warranty period			12 months
Standard Product Warranty Accrual Term			12 months
Maximum
Significant Accounting Policies [Line Items]
Standard warranty period			36 months
Extended warranty period			36 months
Useful life of acquired assets			12 years 6 months
Standard Product Warranty Accrual Term			36 months
Transferred over Time
Significant Accounting Policies [Line Items]
Percentage of revenue recognized	58.00%	52.00%	56.00%	57.00%
Ship and bill
Significant Accounting Policies [Line Items]
Percentage of revenue recognized	42.00%	48.00%	44.00%	43.00%

Debt	9 Months Ended
Debt	Mar. 29, 2024
Debt Disclosure [Abstract]
Debt	Debt REVOLVING CREDIT FACILITY On February 28, 2022, the Company amended the revolving credit facility (the "Revolver") to increase and extend the borrowing capacity to a $1,100,000, 5-year revolving credit line, with the maturity extended to February 28, 2027. As of March 29, 2024, the Company's outstanding balance of unamortized deferred financing costs was $4,431, which is being amortized to Other expense, net in the Consolidated Statements of Operations and Comprehensive (Loss) Income on a straight line basis over the term of the Revolver and includes the costs incurred in conjunction with the November 2023 amendment to the Revolver. On November 7, 2023, due to the uncertainty surrounding a government shutdown or prolonged continuing resolution and the potential impact on the second quarter and fiscal 2024 results, the Company proactively executed Amendment No. 5 to the Revolver, as amended to date, with a syndicate of commercial banks and Bank of America, N.A acting as the administrative agent allowing for a temporary increase in the Consolidated Total Net Leverage Ratio covenant requirement from 4.50 to 5.25 for the second quarter ended December 29, 2023. In conjunction with Amendment No. 5 to the Revolver, the Company incurred $1,931 of new deferred financing costs that will be amortized over the remaining term of the Revolver. Refer to exhibit 10.1 on Form 8-K filed by the Company with the SEC on November 7, 2023. During the third quarter ended March 29, 2024, the Company did not have any additional borrowings. During the nine months ended March 29, 2024, the Company borrowed $105,000. As of March 29, 2024, the Company was in compliance with all covenants and conditions under the Revolver and there were outstanding borrowings of $616,500 against the Revolver, resulting in interest expense of $9,319 and $25,856 for the third quarter and nine months ended March 29, 2024. The borrowing capacity as defined under the Revolver as of March 29, 2024 is approximately $750,000 less outstanding borrowings of $616,500. There were outstanding letters of credit of $963 as of March 29, 2024.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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+ Details

Inventory (Details) - USD ($) $ in Thousands	Mar. 29, 2024	Jun. 30, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 206,222	$ 229,984
Work in process	119,962	81,930
Finished goods	16,831	25,302
Total	$ 343,015	$ 337,216

Subsequent Events	9 Months Ended
Subsequent Events	Mar. 29, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company has evaluated subsequent events from the date of the Consolidated Balance Sheet through the date the consolidated financial statements were issued and noted no items requiring adjustment of the financial statements or additional disclosures.

Operating Segment, Geographic Information and Significant Customers (Tables)

9 Months Ended

Mar. 29, 2024

Segment Reporting [Abstract]

Schedule of Geographic Distribution of Revenues and Revenue by Platform

The geographic distribution of the Company’s revenues as determined by country in which the Company's legal subsidiary is domiciled is summarized as follows:


	U.S.		Europe		Asia Pacific		Eliminations		Total
THIRD QUARTER ENDED MARCH 29, 2024
Net revenues to unaffiliated customers	$	199,834	$	8,418	$	6	$	—	$	208,258
Inter-geographic revenues	1,248		211		—		(1,459)		—
Net revenues	$	201,082	$	8,629	$	6	$	(1,459)	$	208,258
THIRD QUARTER ENDED MARCH 31, 2023
Net revenues to unaffiliated customers	$	252,945	$	10,525	$	9	$	—	$	263,479
Inter-geographic revenues	1,794		26		—		(1,820)		—
Net revenues	$	254,739	$	10,551	$	9	$	(1,820)	$	263,479
NINE MONTHS ENDED MARCH 29, 2024
Net revenues to unaffiliated customers	$	554,877	$	31,817	$	18	$	—	$	586,712
Inter-geographic revenues	4,253		507		—		(4,760)		—
Net revenues	$	559,130	$	32,324	$	18	$	(4,760)	$	586,712
NINE MONTHS ENDED MARCH 31, 2023
Net revenues to unaffiliated customers	$	690,922	$	29,708	$	16	$	—	$	720,646
Inter-geographic revenues	1,873		398		—		(2,271)		—
Net revenues	$	692,795	$	30,106	$	16	$	(2,271)	$	720,646

The following table presents the Company's net revenue by end user for the periods presented:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Domestic(1)	$	177,973	$	238,159	$	506,262	$	648,948
International/Foreign Military Sales(2)	30,285		25,320		80,450		71,698
Total Net Revenue	$	208,258	$	263,479	$	586,712	$	720,646

(1) Domestic revenues consist of sales where the end user is within the U.S., as well as sales to prime defense contractor customers where the ultimate end user location is not defined.

(2) International/Foreign Military Sales consist of sales to U.S. prime defense contractor customers where the end user is outside the U.S., foreign military sales through the U.S. government, and direct sales to non-U.S. based customers intended for end use outside of the U.S.

The following table presents the Company's net revenue by end application for the periods presented:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Radar(1)	$	26,647	$	83,853	$	68,460	$	180,968
Electronic Warfare(2)	25,999		35,939		82,517		104,746
Other Sensor & Effector(3)	47,681		20,143		91,482		70,679
Total Sensor & Effector	100,327		139,935		242,459		356,393
C4I(4)	84,605		104,188		291,279		311,963
Other(5)	23,326		19,356		52,974		52,290
Total Net Revenue	$	208,258	$	263,479	$	586,712	$	720,646

(1) Radar includes end-use applications where radio frequency signals are utilized to detect, track and identify objects.

(2) Electronic Warfare includes end-use applications comprising the offensive and defensive use of the electromagnetic spectrum.

(3) Other Sensor and Effector products include all Sensor and Effector end markets other than Radar and Electronic Warfare.

(4) C4I includes rugged secure rackmount servers that are designed to drive the most powerful military processing applications.

(5) Other products include all component and other sales where the end use is not specified.

The following table presents the Company's net revenue by product grouping for the periods presented:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Components(1)	$	57,308	$	53,187	$	136,257	$	137,528
Modules and Sub-assemblies(2)	43,441		49,992		116,825		143,038
Integrated Subsystems(3)	107,509		160,300		333,630		440,080
Total Net Revenue	$	208,258	$	263,479	$	586,712	$	720,646

(1) Components represent the basic building blocks of an electronic system. They generally perform a single function such as switching, storing or converting electronic signals. Some examples include power amplifiers and limiters, switches, oscillators, filters, equalizers, digital and analog converters, chips, MMICs (monolithic microwave integrated circuits) and memory and storage devices.

(2) Modules and sub-assemblies combine multiple components to serve a range of complex functions, including processing, networking and graphics display. Typically delivered as computer boards or other packaging, modules and sub-assemblies are usually designed using open standards to provide interoperability when integrated in a subsystem. Examples of modules and sub-assemblies include embedded processing boards, switched fabrics and boards for high-speed input/output, digital receivers, graphics and video, along with multi-chip modules, integrated radio frequency and microwave multi-function assemblies and radio frequency tuners and transceivers.

(3) Integrated subsystems bring components, modules and/or sub-assemblies into one system, enabled with software. Subsystems are typically, but not always, integrated within an open standards-based chassis and often feature interconnect technologies to enable communication between disparate systems. Spares and replacement modules and sub-assemblies are provided for use with subsystems sold by the Company. The Company’s subsystems are deployed in sensor processing, aviation and mission computing and C4I applications.

The following table presents the Company's net revenue by platform for the periods presented:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Airborne(1)	$	97,092	$	126,674	$	329,661	$	373,878
Land(2)	21,011		58,816		70,629		119,483
Naval(3)	28,710		39,961		68,255		104,900
Other(4)	61,445		38,028		118,167		122,385
Total Net Revenues	$	208,258	$	263,479	$	586,712	$	720,646

(1) Airborne platform includes products that relate to personnel, equipment or pieces of equipment designed for airborne applications.

(2) Land platform includes products that relate to fixed or mobile equipment, or pieces of equipment for personnel, weapon systems, vehicles and support elements operating on land.

(3) Naval platform includes products that relate to personnel, equipment or pieces of equipment designed for naval operations.

(4) All platforms other than Airborne, Land or Naval.

The geographic distribution of the Company’s identifiable long-lived assets is summarized as follows:


	U.S.		Europe		Total
March 29, 2024	$	111,055	$	2,852	$	113,907
June 30, 2023	$	116,381	$	3,173	$	119,554

Schedule of Revenue by Major Customers

Customers comprising 10% or more of the Company’s revenues for the periods shown are as follows:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Lockheed Martin Corporation	15	%	13	%	11	%	14	%
L3Harris	13	%	*		11	%	*
RTX Corporation	11	%	18	%	10	%	14	%
Northrop Grumman	10	%	11	%	*		11	%
U.S. Navy	*		*		*		10	%
	49	%	42	%	32	%	49	%

* Indicates that the amount is less than 10% of the Company's revenue for the respective period.

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023	Apr. 01, 2022
Income Tax Disclosure [Abstract]
Income tax benefit	$ (12,643)	$ (10,446)	$ (43,811)	$ (13,619)
Loss before income taxes	(57,217)	(5,290)	(170,674)	(33,718)	$ (33,718)
Tax provision for stock compensation shortfalls	$ 772	(91)	$ 2,419	$ 1,655
Tax benefit for release of income tax reserves		$ 1,335

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 29, 2024	Jun. 30, 2023
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 497	$ 1,335
Unbilled receivables and costs in excess of billings, allowance for credit losses	$ 8,653	$ 0
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	1,000,000	1,000,000
Preferred stock, shares issued (shares)	0	0
Preferred stock, shares outstanding (shares)	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	85,000,000	85,000,000
Common stock, shares issued (shares)	57,868,725	56,961,665
Common stock, shares outstanding (shares)	57,868,725	56,961,665

Fair Value of Financial Instruments (Tables)

9 Months Ended

Mar. 29, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Liabilities Measured at Fair Value on a Recurring Basis

The following table summarizes the Companies' financial instruments measured at fair value on a recurring basis as of March 29, 2024:


	Fair Value Measurements
	March 29, 2024		Level 1		Level 2		Level 3
Liabilities:



Interest rate swap	$	3,626	$	—	$	3,626	$	—

Total	$	3,626	$	—	$	3,626	$	—

Schedule of Financial Assets Measured at Fair Value on a Recurring Basis

The following table summarizes the Companies' financial instruments measured at fair value on a recurring basis as of June 30, 2023:


	Fair Value Measurements
	June 30, 2023		Level 1		Level 2		Level 3
Assets:
Interest rate swap	$	3,523	$	—	$	3,523	$	—
Total assets measured at fair value	$	3,523	$	—	$	3,523	$	—

Restructuring

9 Months Ended

Mar. 29, 2024

Restructuring and Related Activities [Abstract]

Restructuring

For the nine months ended March 29, 2024, the Company initiated several immediate cost savings measures that simplify the Company’s organizational structure, facilitate clearer accountability, and align to the Company’s priorities, including: (i) embedding the 1MPACT value creation initiatives and execution into the Company’s operations; (ii) streamlining organizational structure and removing areas of redundancy between corporate and divisional organizations; and (iii) reducing selling, general, and administrative headcount and rebalancing discretionary and third party spending to better align with the Company’s priority areas. On July 20, 2023, the Company executed the plan to embed the 1MPACT value creation initiatives into operations. On August 9, 2023 the Company approved and initiated a workforce reduction that, together with the 1MPACT related action, eliminated approximately 150 positions resulting in $9,548 of severance costs for the nine months ended March 29, 2023. On January 12, 2024, the Company approved and initiated workforce reductions that eliminated approximately 100 positions resulting in an additional $9,841 of severance costs for the nine months ended March 29, 2024.

The Company incurs restructuring and other charges in connection with management's decision to undertake certain actions to realign operating expenses through workforce reductions and the closure of certain Company facilities, businesses and product lines.

All of the restructuring and other charges are classified as Operating expenses in the Consolidated Statements of Operations and Comprehensive (Loss) Income and any remaining restructuring obligations are expected to be paid within the next twelve months. The restructuring liability is classified as Accrued expenses in the Consolidated Balance Sheets.

The following table presents the detail of charges included in the Company’s liability for restructuring and other charges:


	Severance & Related
Balance at June 30, 2023	$	1,529
Restructuring charges	19,389

Cash paid	(14,139)

Balance at March 29, 2024	$	6,779

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Mar. 29, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Significant Accounting Policies [Line Items]
Loss from operations	$ (15,977)	$ (7,306)	$ (63,950)	$ (27,327)
Net loss	$ (45,656)	$ 1,954	$ (139,786)	$ (12,787)
Diluted (in shares)	57,698	56,896	57,536	56,310
Contracts Accounted for under Percentage of Completion
Significant Accounting Policies [Line Items]
Net loss	$ (11,663)	$ (5,333)	$ (46,684)	$ (19,949)
Diluted net loss per share (usd per share)	$ (0.20)	$ (0.09)	$ (0.81)	$ (0.35)

- Definition

The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
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-URI https://asc.fasb.org//1943274/2147483443/250-10-50-11

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-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
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-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482689/260-10-45-60B

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-Topic 944
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-Name Accounting Standards Codification
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-Paragraph 1
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-Topic 942
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-Topic 260
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-Topic 220
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-Paragraph 1
-Subparagraph (SX 210.5-03(13))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-1

+ Details

Inventory

9 Months Ended

Mar. 29, 2024

Inventory Disclosure [Abstract]

Inventory

Inventory is stated at the lower of cost (first-in, first-out) or net realizable value, and consists of materials, labor and overhead. On a quarterly basis, the Company uses consistent methodologies to evaluate inventory for net realizable value. Once an item is written down, the value becomes the new inventory cost basis. The Company reduces the value of inventory for excess and obsolete inventory, consisting of on-hand inventory in excess of estimated usage. The excess and obsolete inventory evaluation is based upon assumptions about future demand, historical usage, product mix and possible alternative uses. Inventory was comprised of the following:


	As of
		March 29, 2024		June 30, 2023
Raw materials		$	206,222	$	229,984
Work in process		119,962		81,930
Finished goods		16,831		25,302
Total		$	343,015	$	337,216

Description of Business	9 Months Ended
Description of Business	Mar. 29, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of BusinessMercury Systems, Inc. is a technology company that delivers mission-critical processing power to the edge, making advanced technologies profoundly more accessible for today’s most challenging aerospace and defense missions. The Mercury Processing Platform allows customers to tap into innovative capabilities from silicon to system scale, turning data into decisions on timelines that matter. Headquartered in Andover, Massachusetts, the Company's products and solutions are deployed in more than 300 programs and across 35 countries, enabling a broad range of applications in mission computing, sensor processing, command and control, and communications. Processing technologies that comprise the Company's platform include signal solutions, display, software applications, networking, storage and secure processing. The Company's innovative solutions are mission-ready, trusted and secure, software-defined and open and modular (the Company's differentiators), to meet customers’ most-pressing high-tech needs, including those specific to the defense community.

Summary of Significant Accounting Policies - Schedule of Weighted-Average Shares (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Accounting Policies [Abstract]
Basic weighted-average shares outstanding (in shares)	57,698	56,511	57,536	56,310
Effect of dilutive equity instruments (in shares)	0	385	0	0
Diluted weighted-average shares outstanding (in shares)	57,698	56,896	57,536	56,310

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 29, 2024	Jun. 30, 2023
Current assets:
Cash and cash equivalents	$ 142,645	$ 71,563
Accounts receivable, net of allowance for credit losses of $497 and $1,335 at March 29, 2024 and June 30, 2023, respectively	91,785	124,729
Unbilled receivables and costs in excess of billings, net of allowance for credit losses of $8,653 and $0 at March 29, 2024 and June 30, 2023, respectively	325,441	382,558
Inventory	343,015	337,216
Prepaid income taxes	27,967	0
Prepaid expenses and other current assets	20,656	20,952
Total current assets	951,509	937,018
Property and equipment, net	113,907	119,554
Goodwill	938,093	938,093
Intangible assets, net	261,805	298,051
Operating lease right-of-use assets, net	63,329	63,015
Deferred tax asset	44,366	27,099
Other non-current assets	5,169	8,537
Total assets	2,378,178	2,391,367
Current liabilities:
Accounts payable	79,906	103,986
Accrued expenses	40,091	28,423
Accrued compensation	16,871	30,419
Income taxes payable	0	13,874
Deferred revenues and customer advances	70,701	56,562
Total current liabilities	207,569	233,264
Income taxes payable	5,166	5,166
Long-term debt	616,500	511,500
Operating lease liabilities	65,473	66,797
Other non-current liabilities	10,677	7,955
Total liabilities	905,385	824,682
Commitments and contingencies (Note L)
Shareholders' equity:
Preferred stock, $0.01 par value; 1,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.01 par value; 85,000,000 shares authorized; 57,868,725 and 56,961,665 shares issued and outstanding at March 29, 2024 and June 30, 2023, respectively	579	570
Additional paid-in capital	1,230,666	1,196,847
Retained earnings	230,576	357,439
Accumulated other comprehensive income	10,972	11,829
Total shareholders’ equity	1,472,793	1,566,685
Total liabilities and shareholders’ equity	$ 2,378,178	$ 2,391,367

Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net revenues	$ 208,258	$ 263,479	$ 586,712	$ 720,646
Cost of revenues	167,616	173,190	464,023	471,302
Gross margin	40,642	90,289	122,689	249,344
Operating expenses:
Selling, general and administrative	43,157	44,626	123,421	128,626
Research and development	21,563	26,516	81,911	81,188
Amortization of intangible assets	11,533	12,809	36,350	40,919
Restructuring and other charges	9,841	2,778	19,389	6,355
Acquisition costs and other related expenses	204	1,606	1,404	5,043
Total operating expenses	86,298	88,335	262,475	262,131
(Loss) income from operations	(45,656)	1,954	(139,786)	(12,787)
Interest income	542	80	674	329
Interest expense	(9,319)	(6,711)	(25,856)	(17,848)
Other expense, net	(2,784)	(613)	(5,706)	(3,412)
Loss before income tax benefit	(57,217)	(5,290)	(170,674)	(33,718)
Income tax benefit	(12,643)	(10,446)	(43,811)	(13,619)
Net (loss) income	$ (44,574)	$ 5,156	$ (126,863)	$ (20,099)
Basic net loss per share (in dollars per share)	$ (0.77)	$ 0.09	$ (2.20)	$ (0.36)
Diluted net loss per share (in dollars per share)	$ (0.77)	$ 0.09	$ (2.20)	$ (0.36)
Weighted-average shares outstanding:
Basic (in shares)	57,698	56,511	57,536	56,310
Diluted (in shares)	57,698	56,896	57,536	56,310
Comprehensive (loss) earnings:
Net (loss) income	$ (44,574)	$ 5,156	$ (126,863)	$ (20,099)
Change in fair value of derivative instruments, net of tax	3,064	(2,687)	(1,058)	1,275
Foreign currency translation adjustments	(459)	(20)	370	374
Pension benefit plan, net of tax	(56)	46	(169)	142
Total other comprehensive income (loss), net of tax	2,549	(2,661)	(857)	1,791
Total comprehensive (loss) income	$ (42,025)	$ 2,495	$ (127,720)	$ (18,308)

Commitments And Contingencies (Details) - USD ($) $ in Thousands	Mar. 29, 2024	Jul. 26, 2023
Long-term Purchase Commitment [Line Items]
Loss contingency, estimate of possible loss		$ 12,900
Minimum
Long-term Purchase Commitment [Line Items]
Loss contingency, range of possible loss, portion not accrued		0
Maximum
Long-term Purchase Commitment [Line Items]
Loss contingency, range of possible loss, portion not accrued		$ 12,900
Non-cancelable purchase commitments
Long-term Purchase Commitment [Line Items]
Purchase commitments for less than one year	$ 138,555

Derivatives	9 Months Ended
Derivatives	Mar. 29, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives The Company utilizes interest rate derivatives to mitigate interest rate exposure with respect to its financing arrangements. On September 29, 2022, the Company entered into the Swap with JP Morgan Chase Bank, N.A. ("JPMorgan") for a notional amount of $300,000 in order to fix the interest rate associated with a portion of the total $511,500 existing borrowings on the Revolver at the time of the Swap. The Swap agreement was designated and qualified for hedge accounting treatment as a cash flow hedge. The Swap was scheduled to mature on February 28, 2027, coterminous with the maturity of the Revolver. The Swap established a fixed interest rate on the first $300,000 of the Company's outstanding borrowings against the Revolver obligation at 3.79%. On September 28, 2023, the Company terminated the Swap. At the time of termination, the fair value of the Swap was an asset of $7,403. The Company received the cash settlement of $7,403 and these proceeds are classified within Operating Activities of the Consolidated Statements of Cash Flows. Following the termination of the Swap, the Company entered into the September 2023 Swap agreement on September 28, 2023 with JPMorgan for a notional amount of $300,000 in order to fix the interest rate associated with a portion of the total $576,500 existing borrowings on Company's Revolver at the time of the Swap at 4.66%. The September 2023 Swap agreement was designated and qualified for hedge accounting treatment as a cash flow hedge. The September 2023 Swap matures on February 28, 2027, coterminous with the maturity of the Revolver. As of March 29, 2024, the fair value of the September 2023 Swap was a liability of $3,626 and is included within Other non-current liabilities in the Company's Consolidated Balance Sheets. During the third quarter and nine months ended March 29, 2024, the Company amortized a total of $881 and $2,101, respectively, of the gain associated with the interest swaps terminated on September 29, 2022 and September 28, 2023, which is included within Other comprehensive loss. The market risk associated with the Company’s derivative instrument is the result of interest rate movements that are expected to offset the market risk of the underlying arrangement. The counterparty to the September 2023 Swap is JPMorgan. Based on the credit ratings of the Company’s counterparty as of March 29, 2024, nonperformance is not perceived to be a material risk. Furthermore, none of the Company’s derivatives are subject to collateral or other security arrangements and none contain provisions that are dependent on the Company’s credit ratings from any credit rating agency. While the contract or notional amounts of derivative financial instruments provide one measure of the volume of these transactions, they do not represent the amount of the Company’s exposure to credit risk. The amounts potentially subject to credit risk (arising from the possible inability of the counterparty to meet the terms of their contracts) are generally limited to the amounts, if any, by which the counterparty obligations under the contracts exceed the obligations of the Company to the counterparty. As a result of the above considerations, the Company does not consider the risk of counterparty default to be significant.

Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Derivatives (Details) - USD ($) $ in Thousands	Mar. 29, 2024	Mar. 29, 2024	Sep. 29, 2023	Jun. 30, 2023	Sep. 29, 2022	Sep. 07, 2022
Derivative [Line Items]
Notional amount					$ 300,000
Derivative interest rate						3.79%
Long-term debt	$ 616,500	$ 616,500	$ 576,500	$ 511,500
Amortized gain associated with derivative	$ 881	$ 2,101
Swap Agreement
Derivative [Line Items]
Notional amount					$ 300,000
Derivative interest rate					4.66%
Swap
Derivative [Line Items]
Derivative asset					$ 7,403
Revolving Credit Facility
Derivative [Line Items]
Existing borrowing capacity					$ 511,500

Fair Value of Financial Instruments

9 Months Ended

Mar. 29, 2024

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

The following table summarizes the Companies' financial instruments measured at fair value on a recurring basis as of March 29, 2024:


	Fair Value Measurements
	March 29, 2024		Level 1		Level 2		Level 3
Liabilities:



Interest rate swap	$	3,626	$	—	$	3,626	$	—

Total	$	3,626	$	—	$	3,626	$	—

The carrying values of cash and cash equivalents, including money market funds, restricted cash, accounts receivable and payable, contract assets and liabilities and accrued liabilities approximate fair value due to the short-term maturities of these assets and liabilities. The Company determined the carrying value of long-term debt approximated fair value due to variable interest rates charged on the borrowings, which reprice frequently. During the first quarter ended September 29, 2023, the Company entered into an interest rate hedging agreement (the “September 2023 Swap”).

The fair value of the September 2023 Swap is estimated using a discounted cash flow analysis based on the contractual terms of the derivative, leveraging observable inputs other than quoted prices, such as interest rates. As of March 29, 2024, the fair value of the September 2023 Swap was a liability of $3,626 and is included within Other non-current liabilities in the Company's Consolidated Balance Sheets.

The following table summarizes the Companies' financial instruments measured at fair value on a recurring basis as of June 30, 2023:


	Fair Value Measurements
	June 30, 2023		Level 1		Level 2		Level 3
Assets:
Interest rate swap	$	3,523	$	—	$	3,523	$	—
Total assets measured at fair value	$	3,523	$	—	$	3,523	$	—

The fair value of interest rate hedging agreement entered on September 29, 2022 ("the Swap") is estimated using a discounted cash flow analysis based on the contractual terms of the derivative, leveraging observable inputs other than quoted prices, such as interest rates. As of June 30, 2023, the fair value of the Swap was an asset of $3,523 and was included within Other non-current assets in the Company's Consolidated Balance Sheets. The Company terminated the Swap during the first quarter ended September 29, 2023.

Refer to Note M for further information regarding the September 2023 Swap and the termination of the Swap.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Stock-Based Compensation (Tables)

9 Months Ended

Mar. 29, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Stock Options

The following table summarizes activity of the Company's stock option plans since June 30, 2023:


	Options Outstanding
	Number of Shares	Weighted Average Grant Date Fair Value		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value as of 3/29/24
Outstanding at June 30, 2023	—	$	—	$	—	—	—
Granted	934	12.71		45.00
Exercised	—			—
Canceled	—			—
Outstanding at March 29, 2024	934	$	12.71	$	45.00	2.93 years	—
Exercisable at March 29, 2024	—	$	—	$	—	—	—

Schedule of Valuation assumptions

The Company calculated the fair values of the options grants using the following weighted-average assumptions:


	Third Quarter Ended
	March 29, 2024
Expected volatility	45		%
Expected term	4 years
Risk-free interest rate	4.44		%
Expected dividend yield	—		%
Weighted-average grant date fair value per share	$	12.71

Schedule of Restricted Stock Awards

The following table summarizes the status of the Company’s non-vested restricted stock awards and deferred stock awards since June 30, 2023:


	Non-vested Restricted Stock Awards
	Number of Shares	Weighted Average Grant Date Fair Value
Outstanding at June 30, 2023	1,339	$	54.45
Granted	1,334	36.38
Vested	(435)	56.80
Forfeited	(557)	47.90
Outstanding at March 29, 2024	1,681	$	41.66

Schedule of Stock-Based Compensation Expense

The following table presents share-based compensation expenses included in the Company’s Consolidated Statements of Operations and Comprehensive (Loss) Income:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Cost of revenues	$	1,299	$	630	$	2,119	$	1,666
Selling, general and administrative	4,123		7,577		11,626		20,732
Research and development	1,498		1,732		4,678		5,048
Stock-based compensation expense before tax	6,920		9,939		18,423		27,446
Income taxes	(1,868)		(2,684)		(4,974)		(7,410)
Stock-based compensation expense, net of income taxes	$	5,052	$	7,255	$	13,449	$	20,036

Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Mar. 29, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies LEGAL CLAIMS The Company is subject to litigation, claims, investigations and audits arising from time to time in the ordinary course of business. Although legal proceedings are inherently unpredictable, the Company believes that it has valid defenses with respect to those matters currently pending against the Company and intends to defend itself vigorously. The outcome of these matters, individually and in the aggregate, is not expected to have a material impact on the Company's cash flows, results of operations, or financial position. On December 7, 2021, counsel for National Technical Systems, Inc. (“NTS”) sent the Company an environmental demand letter pursuant to Massachusetts General Laws Chapter 21E, Section 4A, and CERCLA 42 U.S.C. Section 9601, related to a site that NTS formerly owned at 533 Main Street, Acton, Massachusetts. NTS received a Notice of Responsibility from the Massachusetts Department of Environmental Protection (“MassDEP”) alleging trichloroethene, freon and 1,4-dioxane contamination in the groundwater emanating from NTS’s former site. NTS alleges in its demand letter that the operations of a predecessor company to the Company that was acquired in the Company's acquisition of the Microsemi Carve-Out Business that once owned and operated a facility at 531 Main Street, Acton, Massachusetts contributed to the groundwater contamination. NTS is seeking payment from the Company of NTS’s costs for any required environmental remediation. In April 2022, the Company engaged in a meet and confer session with NTS pursuant to Massachusetts General Laws Chapter 21E, Section 4A to discuss the status of the environmental review performed by NTS and its licensed site professional. In April 2024, counsel for NTS sent additional communications on their demand that the Company participate in their environmental monitoring and remediation planning. In addition, in November 2021, the Company responded to a request for information from MassDEP regarding the detection of PFAS (per- and polyfluoroakyl substances) in the Acton, Massachusetts Water District’s Conant public water supply wells near the former facility at 531 Main Street, Acton, Massachusetts at a level above standard that MassDEP published for PFAS in October 2020. The Company has not been contacted by NTS or MassDEP since the dates discussed above. The Company believes the claims from NTS are without merit and intend to defend our self vigorously. It is too early to determine what responsibility, if any, Mercury will have for these matters. On June 19, 2023, the Board of Directors received notice of the Company’s former CEO’s resignation from the positions of President and Chief Executive Officer. The Board accepted his resignation effective June 24, 2023. In the notice, the former CEO claimed entitlement to certain benefits, including equity vesting, severance, and other benefits, under the change in control severance agreement (the “CIC Agreement”) because the former CEO had resigned with good reason during a potential change in control period. The Company disputes these claims and maintains that the former CEO resigned without good reason. On September 19, 2023, the former CEO filed for binding arbitration under the employment rules of the American Arbitration Association (“AAA”). An arbitrator was appointed on November 29, 2023, and the arbitration trial has been scheduled for mid-December 2024. On March 25, 2024, the arbitrator denied Mr. Aslett's motion for compensation during the dispute and payment of his legal fees, preserving those matters for the arbitration trial. The Company intends to contest vigorously the claims under the CIC Agreement and believes that the Company has strong arguments that the former CEO’s claims lack merit. If the arbitrator rules in the Company’s favor, the Company may still need to pay the former CEO’s reasonable legal fees and compensation during the dispute. If instead the arbitrator rules for the former CEO, the Company could be liable for up to approximately $12,900, based on the closing price of the Company's common stock on June 26, 2023, plus legal fees and expenses and compensation during dispute, for accelerated equity vesting, severance, and other benefits under the CIC Agreement. The Company categorically denies any wrongdoing or liability under the CIC Agreement, but the outcome of potential arbitration is inherently uncertain. Accordingly, it is reasonably possible that the Company will incur a liability in this matter, and the Company estimates the potential range of exposure from $0 to $12,900, plus costs and attorneys’ fees and compensation to the former CEO during the dispute. On December 13, 2023, a securities class action complaint was filed against the Company, Mark Aslett, and Michael Ruppert in the U.S. District Court for the District of Massachusetts. The complaint asserted Section 10(b) and 20(a) securities fraud claims on behalf of a purported class of purchasers and sellers of the Company's stock from December 7, 2020, through June 23, 2023. The complaint alleged that the Company's public disclosures in SEC filings and on earnings calls were false and/or misleading. On February 27, 2024, the Court entered an order appointing Carpenter's Pension Trust Fund for Northern California as lead plaintiff. On April 18, 2024, the lead plaintiff filed an amended complaint including William Ballhaus and David Farnsworth as additional defendants and amended the class period to February 3, 2021 through February 6, 2024. Subject to the terms of the Company's by-laws and applicable Massachusetts law, Mr. Aslett, the Company's former Chief Executive Officer, and Mr. Ruppert, the Company's former Chief Financial Officer, Mr. Ballhaus, the Company's current Chief Executive Officer, and Mr. Farnsworth, the Company's current Chief Financial officer, are indemnified by the Company for this matter. The Company believes the claims in the complaint are without merit and intends to defend itself vigorously. It is too early to determine what responsibility, if any, the Company will have for this matter. On January 31, 2024, a former employee at the Company's Torrance, CA location, filed a wage and hour class action lawsuit in California state court in Los Angeles County, along with a companion Private Attorneys General Act (“PAGA”) lawsuit, to act in a representative capacity for other Mercury employees in California, alleging a range of violations of California wage and hour regulations. The Company believes the claims in the complaints are without merit and intend to defend itself self vigorously. It is too early to determine what responsibility, if any, the Company will have for this matter. INDEMNIFICATION OBLIGATIONS The Company’s standard product sales and license agreements entered into in the ordinary course of business typically contain an indemnification provision pursuant to which the Company indemnifies, holds harmless, and agrees to reimburse the indemnified party for losses suffered or incurred by the indemnified party in connection with any patent, copyright or other intellectual property infringement claim by any third party with respect to the Company’s products. Such provisions generally survive termination or expiration of the agreements. The potential amount of future payments the Company could be required to make under these indemnification provisions is, in some instances, unlimited. PURCHASE COMMITMENTS As of March 29, 2024, the Company has entered into non-cancelable purchase commitments for certain inventory components and services used in its normal operations. The purchase commitments covered by these agreements are for less than one year and aggregate to $138,555. OTHER As part of the Company's strategy for growth, the Company continues to explore acquisitions or strategic alliances. The associated acquisition costs incurred in the form of professional fees and services may be material to the future periods in which they occur, regardless of whether the acquisition is ultimately completed. The Company may elect from time to time to purchase and subsequently retire shares of common stock in order to settle employees’ tax liabilities associated with vesting of a restricted stock award or exercise of stock options. These transactions would be treated as a use of cash in financing activities in the Company's Consolidated Statements of Cash Flows.

Goodwill (Details)	Mar. 29, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	2.50%

Stock-Based Compensation - Schedule of Stock-Based Compensation Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense before tax	$ 6,920	$ 9,939	$ 18,423	$ 27,446
Income taxes	(1,868)	(2,684)	(4,974)	(7,410)
Stock-based compensation expense, net of income taxes	5,052	7,255	13,449	20,036
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense before tax	1,299	630	2,119	1,666
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense before tax	4,123	7,577	11,626	20,732
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense before tax	$ 1,498	$ 1,732	$ 4,678	$ 5,048

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 35
-Paragraph 1D
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480483/718-10-35-1D

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 35
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480483/718-10-35-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
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-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)
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-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(01)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(02)
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-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(03)
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-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Subparagraph (c)(2)(i)
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Reference 15: http://www.xbrl.org/2003/role/disclosureRef
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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Reference 19: http://www.xbrl.org/2003/role/disclosureRef
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Reference 20: http://www.xbrl.org/2003/role/disclosureRef
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Reference 24: http://www.xbrl.org/2003/role/disclosureRef
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Reference 25: http://www.xbrl.org/2003/role/disclosureRef
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Reference 26: http://www.xbrl.org/2003/role/disclosureRef
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Reference 27: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 28: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(v)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Restructuring - Additional Information (Details) $ in Thousands	9 Months Ended
	Mar. 29, 2024 USD ($)	Jan. 12, 2024 position	Aug. 09, 2023 position
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated \| position		100	150
Workforce Reduction - August 2023 [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 9,548
Workforce Reduction - January 2024 [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 9,841

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

Summary of Significant Accounting Policies - Warranty (Details) $ in Thousands	9 Months Ended
	Mar. 29, 2024 USD ($)
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at June 30, 2023	$ 1,282
Accruals for warranties issued during the period	6,153
Settlements made during the period	(1,424)
Balance at March 29, 2024	$ 6,011

Inventory (Tables)

9 Months Ended

Mar. 29, 2024

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventory was comprised of the following:


	As of
		March 29, 2024		June 30, 2023
Raw materials		$	206,222	$	229,984
Work in process		119,962		81,930
Finished goods		16,831		25,302
Total		$	343,015	$	337,216

Stock-Based Compensation - Schedule of Restricted Stock Awards (Details) shares in Thousands	9 Months Ended
	Mar. 29, 2024 $ / shares shares
Weighted Average Grant Date Fair Value
Outstanding at end of period (in usd per share)	$ 12.71
Restricted Stock
Number of Shares
Outstanding at beginning of period (in shares) \| shares	1,339
Granted (in shares) \| shares	1,334
Vested (in shares) \| shares	(435)
Forfeited (in shares) \| shares	(557)
Outstanding at end of period (in shares) \| shares	1,681
Weighted Average Grant Date Fair Value
Outstanding at beginning of period (in usd per share)	$ 54.45
Granted (in usd per share)	36.38
Vested (in usd per share)	56.80
Forfeited (in usd per share)	47.90
Outstanding at end of period (in usd per share)	$ 41.66

Restructuring - Schedule of Charges for Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Restructuring Reserve [Roll Forward]
Balance at June 30, 2023			$ 1,529
Restructuring charges	$ 9,841	$ 2,778	19,389	$ 6,355
Cash paid			(14,139)
Balance at March 29, 2024	$ 6,779		$ 6,779

Employee Benefit Plan	9 Months Ended
Employee Benefit Plan	Mar. 29, 2024
Retirement Benefits [Abstract]
Employee Benefit Plan	Employee Benefit Plan PENSION PLAN The Company maintains a defined benefit pension plan (the “Plan”) for its Swiss employees, which is administered by an independent pension fund. The Plan is mandated by Swiss law and meets the criteria for a defined benefit plan under ASC 715, Compensation—Retirement Benefits (“ASC 715”), because participants of the Plan are entitled to a defined rate of return on contributions made. The independent pension fund is a multi-employer plan with unrestricted joint liability for all participating companies for which the Plan’s overfunding or underfunding is allocated to each participating company based on an allocation key determined by the Plan. The Company recognizes a net asset or liability for the Plan equal to the difference between the projected benefit obligation of the Plan and the fair value of the Plan’s assets as required by ASC 715. The funded status may vary from year to year due to changes in the fair value of the Plan’s assets and variations on the underlying assumptions of the projected benefit obligation of the Plan. The Plan's funded status at March 29, 2024 was a net liability of $4,156, which is recorded in Other non-current liabilities on the Consolidated Balance Sheet. The Company recorded a net loss of $56 and $169 in AOCI during the third quarter and nine months ended March 29, 2024. The Company recorded a net gain of $46 and $142 in AOCI during the third quarter and nine months ended March 31, 2023. The Company recognized net periodic benefit costs of $213 and $628 associated with the Plan for the third quarter and nine months ended March 29, 2024, respectively. The Company recognized net periodic benefit costs of $230 and $671 associated with the Plan for the third quarter and nine months ended March 31, 2023, respectively. The Company's total expected employer contributions to the Plan during fiscal 2024 are $1,155. 401(k) Plan The Company maintains a qualified 401(k) plan (the “401(k) Plan”) for its U.S. employees and matches participants' contributions to the plan of up to 6% of their eligible annual compensation in Company stock. The Company may also make optional contributions to the plan for any plan year at its discretion. The Company had $2,963 and $2,705 of capitalized stock-based 401(k) matching compensation expense on the Consolidated Balance Sheets at March 29, 2024 and June 30, 2023, respectively. Stock-based 401(k) matching compensation cost is measured based on the value of the matching amount and is recognized as expense as incurred. During the third quarter and nine months ended March 29, 2024, the Company recognized share-based matching contributions related to the 401(k) plan of $4,528 and $12,180, as compared to $3,288 and $9,715 during the third quarter and nine months ended March 31, 2023. Deferred Compensation Plan The Company implemented a nonqualified deferred compensation plan as of January 1, 2024, under which eligible employees may defer up to 50% of their base salaries and up to 100% of their annual incentive bonuses. The Company may also make employer contributions to participant accounts in its sole discretion, and for calendar year 2024, will match participants’ deferrals under the plan of up to 6% of their eligible annual compensation in the form of deferred stock units (or at the Company’s election, a cash deferral credited to participants’ account balances). The Company’s matching obligation for 2024 is subject to the satisfaction of a financial performance condition for the 2024 calendar year. Participant deferrals under the plan are held in a Rabbi trust and are subject to the claims of the Company’s creditors. Assets held by the rabbi trust are classified as trading securities and are recorded at fair value, with changes in value recorded as adjustments to other income. All deferrals or employer contributions under the plan, and all earnings thereon, are fully vested as and when made or credited to plan participants.. As of March 29, 2024, the Company held assets under the rabbi trust of $52, and was subject to liabilities for amounts payable under the plan to participants (including accrued employer matching contributions not yet credited to plan participants) of $52. Assets related to this plan are included in Other assets, and liabilities related to this plan are included in Other long-term liabilities in the Consolidated Balance Sheets. During the third quarter and nine months ended March 29, 2024, the Company recognized an immaterial value of compensation expense as a result of changes in the value of notional investments selected by plan participants for the investment of their plan account balances, with the same amount being recorded as other income attributable to changes in the market value of the assets held by the Rabbi trust. The nonqualified deferred compensation plan was not in place as of the third quarter and nine months ended March 31, 2023.

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480794/715-70-50-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
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-Name Accounting Standards Codification
-Section 55
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-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(03)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 1
-Subparagraph (q)
-Publisher FASB
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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-URI https://asc.fasb.org//715/tableOfContent

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-Section 50
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
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-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480126/715-20-S99-2

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480266/715-60-50-3

+ Details

Fair Value of Financial Instruments - Additional Information (Details) - Fair Value - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Mar. 29, 2024	Jun. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$ 3,626
Total assets measured at fair value		$ 3,523
Interest rate swap \| Swap Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$ 3,626
Total assets measured at fair value		$ 3,523

Summary of Significant Accounting Policies (Policies)

9 Months Ended

Mar. 29, 2024

Accounting Policies [Abstract]

Basis of Presentation

BASIS OF PRESENTATION

The accompanying consolidated financial statements have been prepared by the Company in accordance with Generally Accepted Accounting Principles (“GAAP”) in the United States of America for interim financial information and with the instructions to the Form 10-Q and Article 10 of Regulation S-X. Certain information and footnote disclosures normally included in annual consolidated financial statements have been condensed or omitted pursuant to those rules and regulations; however, in the opinion of management the financial information reflects all adjustments, consisting of adjustments of a normal recurring nature, necessary for fair presentation. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes for the fiscal year ended June 30, 2023 which are contained in the Company’s Annual Report on Form 10-K filed with the SEC on August 15, 2023. The results for the third quarter and nine months ended March 29, 2024 are not necessarily indicative of the results to be expected for the full fiscal year.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

Use of Estimates

USE OF ESTIMATES

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.

Foreign Currency

FOREIGN CURRENCY

Local currencies are the functional currency for the Company’s subsidiaries in Switzerland, the United Kingdom, Spain and Canada. The accounts of foreign subsidiaries are translated using exchange rates in effect at period-end for assets and liabilities and at average exchange rates during the period for results of operations. The related translation adjustments are reported in Accumulated other comprehensive income (“AOCI”) in shareholders’ equity. Gains (losses) resulting from non-U.S. currency transactions are included in Other expense, net in the Consolidated Statements of Operations and Comprehensive (Loss) Income and were immaterial for all periods presented.

Accounts Receivable

ACCOUNTS RECEIVABLE

Accounts receivable, net, represents amounts that have been billed and are currently due from customers. The Company maintains an allowance for credit losses to provide for the estimated amount of receivables that will not be collected. The Company provides credit to customers in the normal course of business. The Company performs ongoing credit evaluations of its customers’ financial condition and limits the amount of credit extended as necessary. The allowance is based upon an assessment of the customer's credit worthiness, reasonable forecasts about the future, history with the customer, and the age of the receivable balance. The Company typically invoices a customer upon shipment of the product (or completion of a service) for contracts where revenue is recognized at a point in time. For contracts where revenue is recognized over time, the invoicing

events are typically based on specified performance obligation deliverables or milestone events, or quantifiable measures of performance.

Derivatives

DERIVATIVES

The Company records the fair value of its derivative financial instruments in its consolidated financial statements in Other non-current assets, or Other non-current liabilities depending on their net position, regardless of the purpose or intent for holding the derivative contract. Changes in the fair value of the derivative financial instruments are either recognized periodically in earnings or in shareholders’ equity as a component of Other comprehensive income (loss) (“OCI”). Changes in the fair value of cash flow hedges that qualify for hedge accounting treatment are recorded in OCI and reclassified into earnings in the same line item on the Consolidated Statements of Operations and Comprehensive (Loss) Income as the impact of the hedged transaction when the underlying contract matures and, for interest rate exposure derivatives, over the term of the corresponding debt instrument. Changes in the fair values of derivatives not qualifying for hedge accounting are reported in earnings as they occur. All derivatives for the Company qualified for hedge accounting as of March 29, 2024.

Revenue Recognition, Contract Balances and Remaining Performance Obligations

REVENUE RECOGNITION

The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers, (“ASC 606”). Revenues are derived from the sales of products that are grouped into one of the following three categories: (i) components; (ii) modules and sub-assemblies; and (iii) integrated subsystems. The Company also generates revenues from the performance of services, including systems engineering support, consulting, maintenance and other support, testing and installation. Each promised good or service within a contract is accounted for separately under the guidance of ASC 606 if they are distinct. Promised goods or services not meeting the criteria for being a distinct performance obligation are bundled into a single performance obligation with other goods or services that together meet the criteria for being distinct. The appropriate allocation of the transaction price and recognition of revenue is then determined for the bundled performance obligation.

Revenue recognized at a point in time generally relates to contracts that include a combination of components, modules and sub-assemblies, integrated subsystems and related system integration or other services. Contracts with distinct performance obligations recognized at a point in time, with or without an allocation of the transaction price, totaled 42% and 44% of revenues for the third quarter and nine months ended March 29, 2024, respectively. Contracts with distinct performance obligations recognized at a point in time, with or without an allocation of the transaction price, totaled 48% and 43% of revenues for the third quarter and nine months ended and March 31, 2023, respectively.

The Company also engages in contracts for development, production and service activities and recognizes revenue for performance obligations over time. These over time contracts involve the design, development, manufacture, or modification of complex modules and sub-assemblies or integrated subsystems and related services. Over time contracts include both fixed-price and cost reimbursable contracts. The Company’s cost reimbursable contracts typically include cost-plus fixed fee and time and material contracts.

Accounting for contracts recognized over time requires significant judgment relative to estimating total contract revenues and costs. In particular, this includes assumptions relative to the amount of time to complete the contract and the assessment of the nature and complexity of the work to be performed. The Company's estimates are based upon the professional knowledge and experience of its engineers, operations, program managers and other personnel, who review each over time contract monthly to assess the contract’s schedule, performance, technical matters and estimated cost at completion. Changes in estimates are applied retrospectively and when adjustments in estimated contract costs are identified, such revisions may result in current period adjustments to earnings applicable to performance in prior periods. The aggregate effects of these favorable and unfavorable changes across the Company’s portfolio of programs can have a significant effect upon its reported Loss from operations, Net loss and Diluted net loss per share in each of the reporting periods. The net impact of changes in estimates had the following impact on the Company’s operating results:


	Third Quarters Ended				Nine Months Ended
(In thousands, except per share data)	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Loss from operations	$	(15,977)	$	(7,306)	$	(63,950)	$	(27,327)
Net loss (1)	$	(11,663)	$	(5,333)	$	(46,684)	$	(19,949)
Diluted net loss per share	$	(0.20)	$	(0.09)	$	(0.81)	$	(0.35)
Diluted Shares	57,698		56,896		57,536		56,310
(1) Federal and state statutory rate of 27%

Total revenue recognized over time was 58% and 56% of total revenues for the third quarters and nine months ended March 29, 2024, respectively. Total revenue recognized over time was 52% and 57% of total revenues for the third quarters and nine months ended March 31, 2023, respectively.

The Company generally does not provide its customers with rights of product return other than those related to assurance warranty provisions that permit repair or replacement of defective goods generally over a period of 12 to 36 months. The Company accrues for anticipated warranty costs upon product shipment. The Company does not consider activities related to such assurance warranties, if any, to be a separate performance obligation. The Company does offer separately priced extended warranties which generally range from 12 to 36 months that are treated as separate performance obligations. The transaction price allocated to extended warranties is recognized over time in proportion to the costs expected to be incurred in satisfying the obligations under the contract.

The Company's contracts generally do not include significant financing components. The Company's over time contracts may include milestone payments, which align the payment schedule with the progress towards completion on the performance obligation. Otherwise, the Company's contracts are predicated on payment upon completion of the performance obligation. On certain contracts, the Company may be entitled to receive an advance payment, which is not considered a significant financing component because most contracts have a duration of approximately two years on average and it is used to facilitate inventory demands at the onset of a contract and to safeguard the Company from the failure of the other party to abide by some or all of their obligations under the contract.

All revenues are reported net of government assessed taxes (e.g., sales taxes or value-added taxes). Refer to Note K for disaggregation of revenue for the period.

CONTRACT BALANCES

Contract balances result from the timing of revenue recognized, billings and cash collections resulting in the generation of contract assets and liabilities. Contract assets represent revenue recognized in excess of amounts invoiced to the customer and the right to payment is not subject to the passage of time. Instead, while the Company has an enforceable right to payment as progress is made over performance obligations, billings to customers are generally predicated on (i) completion of defined milestones, (ii) monthly costs incurred or (iii) final delivery of goods or services. Contract assets are presented as Unbilled receivables and costs in excess of billings, net of allowance for credit losses on the Company’s Consolidated Balance Sheets. Contract liabilities consist of deferred product revenue, billings in excess of revenues, deferred service revenue and customer advances. Deferred product revenue represents amounts that have been invoiced to customers, but are not yet recognizable as revenue because the Company has not satisfied its performance obligations under the contract. Billings in excess of revenues represents milestone billing contracts where the billings of the contract exceed recognized revenues. Deferred service revenue primarily represents amounts invoiced to customers for annual maintenance contracts or extended warranty contracts, which are recognized over time in proportion to the costs expected to be incurred in satisfying the obligations under the contract. Customer advances represent deposits received from customers on an order. Contract liabilities are included in deferred revenue as well as Other non-current liabilities on the Company’s Consolidated Balance Sheets. Contract balances are reported in a net position on a contract-by-contract basis.

REMAINING PERFORMANCE OBLIGATIONS

Long-Lived Assets

LONG-LIVED ASSETS

Long-lived assets primarily include property and equipment, intangible assets and right-of-use ("ROU") assets. The Company regularly evaluates its long-lived assets for events and circumstances that indicate a potential impairment in accordance with ASC 360, Property, Plant and Equipment (“ASC 360”). The Company reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. Each impairment test is based on a comparison of the estimated undiscounted cash flows of the asset as compared to the recorded value of the asset. If impairment is indicated, the asset is written down to its estimated fair value.

Goodwill and Intangible Assets

GOODWILL AND INTANGIBLE ASSETS

Goodwill is the amount by which the purchase price of a business acquisition exceeded the fair values of the net identifiable assets on the date of purchase (see Note E). In accordance with the requirements of Intangibles-Goodwill and Other (“ASC 350”), goodwill is not amortized. Goodwill is assessed for impairment at least annually, on a reporting unit basis, or when events and circumstances (“triggering event”) occur indicating that the recorded goodwill may be impaired. Potential triggering events include macroeconomic conditions, industry and market considerations, financial performance and expectations of projected financial performance and cash flows, and changes in the Company's stock price in relation to the carrying value of its reporting units, among other relevant factors. Adverse changes to these events and circumstances could require the Company to perform an interim impairment test.

Intangible assets result from the Company’s various business acquisitions and certain licensed technologies, and consist of identifiable intangible assets, including completed technology, licensing agreements, patents, customer relationships, trademarks, backlog and non-compete agreements. Intangible assets are reported at cost, net of accumulated amortization and are either amortized on a straight-line basis over their estimated useful lives of up to 12.5 years or over the period the economic benefits of the intangible asset are consumed.

Weighted-Average Shares

Equity instruments to purchase 2,711 and 2,551 shares of common stock were not included in the calculation of diluted net loss per share for the third quarters and nine months ended March 29, 2024, respectively, because the equity instruments were anti-dilutive. Equity instruments to purchase 792 and 1,873 shares of common stock were not included in the calculation of diluted net earnings per share for the third quarter and nine months ended March 31, 2023, respectively, because the equity instruments were anti-dilutive.

Recently Issued And Adopted Accounting Pronouncements

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (ASC 280): Improvements to Reportable Segment Disclosures, an amendment of the FASB Accounting Standards Codification. The amendments in this ASU address improvements to reportable segment disclosure requirements, specifically requiring disclosure of significant segment expenses. The amendment also extends certain annual disclosures to interim periods, and clarifies that single reportable segment entities must apply ASC 280 in its entirety, inclusive of this update. This ASU is effective for fiscal years beginning after December 15, 2023, as well as all interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the effect that this standard will have on its consolidated financial statements and related disclosures.

In December 2023, the FASB issued ASU No. 2023-09, Improvement to Income Tax Disclosures, an amendment of the FASB Accounting Standards Codification. The amendments in this ASU enact new income tax disclosure requirements in addition to modifying existing requirements. The amendment requires entities to categorize and provide greater disaggregation of information in the rate reconciliation and income taxes paid disclosures. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the effect that this standard will have on its consolidated financial statements and related disclosures.

In March 2024, the FASB issued ASU No. 2024-01, Compensation - Stock Compensation (Topic 718), an amendment of the FASB Accounting Standards Codification. The amendments in this ASU address improvements to clarify the accounting treatment of profits interest awards. The amendments provide illustrative examples for entities to evaluate whether profits interest awards should be accounted for are share based compensation (Topic 718) or as cash bonus or profit-sharing arrangement (Topic 710). This ASU is effective for fiscal years beginning after December 15, 2023, as well as all interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted, including adoption in an interim

period. The Company does not believe this standard will have an impact on its consolidated financial statements and related disclosures.

In March 2024, the FASB issued ASU No. 2024-02, Codification Improvements - Amendments to Remove References to the Concepts Statements, an amendment of the FASB Accounting Standards Codification. The amendments in this ASU are related to the removal of various references to FASB Concept Statements from the codification to make clear distinctions between authoritative and non-authoritative literature in the codification. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company does not believe this standard will have an impact on its consolidated financial statements and related disclosures.

RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS

Effective July 1, 2023, the company adopted ASU No. 2021-08, Business Combinations (ASC 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, an amendment of the FASB Accounting Standards Codification. The amendments in this ASU address diversity and inconsistency related to the recognition and measurement of contract assets and contract liabilities acquired in a business combination and require that an acquirer recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606, Revenue from Contracts with Customers. This adoption did not have an impact to the Company's consolidated financial statements or related disclosures.

Stock-Based Compensation

As part of the Company's ongoing annual equity grant program for employees, the Company grants performance-based restricted stock awards to certain executives and employees pursuant to the 2018 Plan. Performance awards vest based on the requisite service period subject to the achievement of specific financial performance targets. Based on the performance targets, some of these awards require graded vesting which results in more rapid expense recognition compared to traditional time-based vesting over the same vesting period. The Company monitors the probability of achieving the performance targets on a quarterly basis and may adjust periodic stock compensation expense accordingly based on its determination of the likelihood for reaching targets. The performance targets generally include the achievement of financial performance goals, either on an absolute basis or relative to a peer group of companies. Payouts under performance-based restricted stock awards may also be

subject to modification based on Mercury’s total shareholder return relative to the component companies within the Spade Defense Index.

Debt (Details) $ in Thousands		3 Months Ended		9 Months Ended
Debt (Details) $ in Thousands	Feb. 28, 2022 USD ($)	Mar. 29, 2024 USD ($)	Mar. 31, 2023 USD ($)	Mar. 29, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 29, 2023 USD ($)	Nov. 06, 2023	Sep. 29, 2023 USD ($)	Jun. 30, 2023 USD ($)
Debt Instrument [Line Items]
Outstanding borrowings		$ 616,500		$ 616,500				$ 576,500	$ 511,500
Interest expense		9,319	$ 6,711	25,856	$ 17,848
Outstanding letter of credit		$ 963		$ 963
Revolving Credit Facility \| Leverage Ratio
Debt Instrument [Line Items]
Debt instrument, measurement input		5.25		5.25			4.50
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,100,000	$ 750,000		$ 750,000
Term of revolving credit facility	5 years
Proceeds from Revolver				105,000
Term Loan
Debt Instrument [Line Items]
Debt issuance costs		$ 4,431		$ 4,431
Unamortized deferred financing costs						$ 1,931

Fair Value of Financial Instruments - Schedule of Financial Assets Measured at Fair Value on a Recurring Basis (Details) - Fair Value - Fair Value, Measurements, Recurring $ in Thousands	Jun. 30, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 3,523
Interest rate swap \| Swap Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	3,523
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0
Level 1 \| Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	3,523
Level 2 \| Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	3,523
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	0
Level 3 \| Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets measured at fair value	$ 0

Summary of Significant Accounting Policies

9 Months Ended

Mar. 29, 2024

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

BASIS OF PRESENTATION

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation.

All references to the third quarter of fiscal 2024 are to the quarter ended March 29, 2024. There were 13 weeks during the third quarters ended March 29, 2024 and March 31, 2023, respectively. There were 39 weeks during the nine months ended March 29, 2024 and March 31, 2023, respectively.

USE OF ESTIMATES

FOREIGN CURRENCY

ACCOUNTS RECEIVABLE

events are typically based on specified performance obligation deliverables or milestone events, or quantifiable measures of performance.

ACCOUNTS RECEIVABLES FACTORING

On September 27, 2022, the Company executed an uncommitted receivables purchase agreement (“RPA”) with Bank of the West, as purchaser, pursuant to which the Company may offer to sell certain customer receivables, subject to the terms and conditions of the RPA. The RPA is an uncommitted arrangement such that the Company is not obligated to sell any receivables and Bank of the West has no obligation to purchase any receivables from the Company. Pursuant to the RPA, Bank of the West may purchase certain of the Company's customer receivables at a discounted rate, subject to a limit that as of any date, the total amount of purchased receivables held by Bank of the West, less the amount of all collections received on such receivables, may not exceed $20,000. The RPA has an indefinite term and the agreement remains in effect until it is terminated by either party. Factoring under the RPA Agreement is treated as a true sale of accounts receivable by the Company. The Company has continued involvement in servicing accounts receivable under the RPA, but no retained interests related to the factored accounts receivable. On March 14, 2023, the Company amended the RPA to increase the capacity from $20,000 to $30,600. On June 21, 2023, the Company further amended the RPA with BMO Harris Bank (as successor in interest to Bank of the West) to increase the capacity from $30,600 to $60,000.

Proceeds for amounts factored by the Company are recorded as an increase to cash and a reduction to accounts receivable outstanding in the Consolidated Balance Sheets. Cash Flows attributable to factoring are reflected as cash flows from operating activities in the Company's Consolidated Statements of Cash Flows. Factoring fees are included as selling, general and administrative expenses in the Company's Consolidated Statements of Operations and Comprehensive (Loss) Income.

The Company had $44,229 factored accounts receivables as of March 29, 2024 and incurred factoring fees of approximately $375 and $1,636 for the third quarter and nine months ended March 29, 2024. The Company had $24,502 factored in accounts receivables as of March 31, 2023 and incurred factoring fees of approximately $179 and $317 for the third quarter and nine months ended March 31, 2023.

DERIVATIVES

REVENUE RECOGNITION


	Third Quarters Ended				Nine Months Ended
(In thousands, except per share data)	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Loss from operations	$	(15,977)	$	(7,306)	$	(63,950)	$	(27,327)
Net loss (1)	$	(11,663)	$	(5,333)	$	(46,684)	$	(19,949)
Diluted net loss per share	$	(0.20)	$	(0.09)	$	(0.81)	$	(0.35)
Diluted Shares	57,698		56,896		57,536		56,310
(1) Federal and state statutory rate of 27%

All revenues are reported net of government assessed taxes (e.g., sales taxes or value-added taxes). Refer to Note K for disaggregation of revenue for the period.

CONTRACT BALANCES

The contract asset balances were $325,441 and $382,558 as of March 29, 2024 and June 30, 2023, respectively. The contract asset balance decreased due to $386,749 of billings and offset by revenue recognized under over time contracts of $329,632 during the nine months ended March 29, 2024. During the nine months ended March 29, 2024, the Company's contract assets were impacted by changes in estimates for contracts recognized over time and write-offs and reserves as a result of ongoing negotiations of settlement terms with its customers. The contract liability balances were $71,218 and $57,142 as of March 29, 2024 and June 30, 2023, respectively. The contract liability increased due to a higher volume of advanced milestone billing events as well as timing of revenue recognized across multiple programs.

Revenue recognized for the third quarter and nine months ended March 29, 2024 that was included in the contract liability balance at June 30, 2023 was $10,170 and $41,413, respectively. Revenue recognized for the third quarter and nine months ended March 31, 2023 that was included in the contract liability balance at July 1, 2022 was $2,681 and $10,418, respectively.

REMAINING PERFORMANCE OBLIGATIONS

The Company includes in its computation of remaining performance obligations customer orders for which it has accepted executed sales orders. The definition of remaining performance obligations excludes contracts with original expected durations of less than one year, as well as those contracts that provide the customer with the right to cancel or terminate the order with no substantial penalty, even if the Company’s historical experience indicates the likelihood of cancellation or termination is remote. As of March 29, 2024, the aggregate amount of the transaction price allocated to remaining performance obligations was $793,458. The Company expects to recognize approximately 53% of its remaining performance obligations as revenue in the next 12 months and the balance thereafter.

LONG-LIVED ASSETS

GOODWILL AND INTANGIBLE ASSETS

PRODUCT WARRANTY ACCRUAL

The Company’s product sales generally include a 12 to 36 month standard hardware warranty. At time of product shipment, the Company accrues for the estimated cost to repair or replace potentially defective products. Estimated warranty costs are based upon prior actual warranty costs for substantially similar transactions and any specifically identified warranty requirements. Product warranty accrual is included as part of accrued expenses in the accompanying Consolidated Balance Sheets. The following table presents the changes in the Company's product warranty accrual.


	Total
Balance at June 30, 2023	$	1,282
Accruals for warranties issued during the period	6,153
Settlements made during the period	(1,424)
Balance at March 29, 2024	$	6,011

WEIGHTED-AVERAGE SHARES

Weighted-average shares were calculated as follows:


	Third Quarters Ended		Nine Months Ended
	March 29, 2024	March 31, 2023	March 29, 2024	March 31, 2023
Basic weighted-average shares outstanding	57,698	56,511	57,536	56,310
Effect of dilutive equity instruments	—	385	—	—
Diluted weighted-average shares outstanding	57,698	56,896	57,536	56,310

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

period. The Company does not believe this standard will have an impact on its consolidated financial statements and related disclosures.

RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS

Operating Segment, Geographic Information and Significant Customers - Schedule of Revenue By Platform (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Revenue from External Customer [Line Items]
Net revenues	$ 208,258	$ 263,479	$ 586,712	$ 720,646
Airborne
Revenue from External Customer [Line Items]
Net revenues	97,092	126,674	329,661	373,878
Land
Revenue from External Customer [Line Items]
Net revenues	21,011	58,816	70,629	119,483
Naval
Revenue from External Customer [Line Items]
Net revenues	28,710	39,961	68,255	104,900
Other
Revenue from External Customer [Line Items]
Net revenues	$ 61,445	$ 38,028	$ 118,167	$ 122,385

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

+ Details

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (126,863)	$ (20,099)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense	66,639	74,827
Stock-based compensation expense	18,423	27,446
Stock-based matching contributions on defined contribution plan	12,180	9,715
Benefit for deferred income taxes	(17,260)	(34,644)
Bad debt expense	11,690	92
Other non-cash items	445	629
Cash settlement for termination of interest rate swap	7,403	5,995
Changes in operating assets and liabilities:
Accounts receivable, unbilled receivables, and costs in excess of billings	78,326	(53,705)
Inventory	(7,010)	(70,029)
Prepaid income taxes	(27,964)	3,866
Prepaid expenses and other current assets	174	(1,154)
Other non-current assets	(234)	2,752
Accounts payable, accrued expenses, and accrued compensation	(25,885)	(11,765)
Deferred revenues and customer advances	14,211	39,051
Income taxes payable	(13,872)	(4,229)
Other non-current liabilities	(1,782)	(2,612)
Net cash used in operating activities	(11,379)	(33,864)
Cash flows from investing activities:
Purchases of property and equipment	(23,943)	(29,950)
Other investing activities	0	150
Net cash used in investing activities	(23,943)	(29,800)
Cash flows from financing activities:
Proceeds from employee stock plans	3,163	2,393
Borrowings under credit facilities	105,000	100,000
Payments under credit facilities	0	(40,000)
Purchase and retirement of common stock	(15)	(63)
Payments of deferred financing and offering costs	(1,931)	0
Net cash provided by financing activities	106,217	62,330
Effect of exchange rate changes on cash and cash equivalents	187	121
Net increase (decrease) in cash and cash equivalents	71,082	(1,213)
Cash and cash equivalents at beginning of period	71,563	65,654
Cash and cash equivalents at end of period	142,645	64,441
Cash paid during the period for:
Interest	26,660	18,751
Income taxes, net of refunds	14,451	21,928
Supplemental disclosures—non-cash activities:
Non-cash investing activity: Purchases of property and equipment incurred but not yet paid	$ 7,509	$ 5,105

Operating Segment, Geographic Information and Significant Customers - Schedule of Geographic Distribution of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023	Jun. 30, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 208,258	$ 263,479	$ 586,712	$ 720,646
Identifiable long-lived assets	113,907		113,907		$ 119,554
Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	57,308	53,187	136,257	137,528
Modules and Sub-assemblies
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	43,441	49,992	116,825	143,038
Integrated Subsystems
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	107,509	160,300	333,630	440,080
Total Sensor & Effector
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	100,327	139,935	242,459	356,393
Radar
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	26,647	83,853	68,460	180,968
Electronic Warfare
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	25,999	35,939	82,517	104,746
Other Sensor & Effector
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	47,681	20,143	91,482	70,679
C4I
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	84,605	104,188	291,279	311,963
Other
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	23,326	19,356	52,974	52,290
Domestic
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	177,973	238,159	506,262	648,948
International/Foreign Military Sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	30,285	25,320	80,450	71,698
Inter-geographic revenues
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	(1,459)	(1,820)	(4,760)	(2,271)
U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	199,834	252,945	554,877	690,922
U.S. \| Inter-geographic revenues
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	1,248	1,794	4,253	1,873
U.S. \| Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	201,082	254,739	559,130	692,795
Identifiable long-lived assets	111,055		111,055		116,381
Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	8,418	10,525	31,817	29,708
Europe \| Inter-geographic revenues
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	211	26	507	398
Europe \| Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	8,629	10,551	32,324	30,106
Identifiable long-lived assets	2,852		2,852		$ 3,173
Asia Pacific
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	6	9	18	16
Asia Pacific \| Inter-geographic revenues
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	0	0	0	0
Asia Pacific \| Reportable Geographical Components
Segment Reporting, Revenue Reconciling Item [Line Items]
Net revenues	$ 6	$ 9	$ 18	$ 16

Summary of Significant Accounting Policies (Tables)

9 Months Ended

Mar. 29, 2024

Accounting Policies [Abstract]

Schedule of Product Warranty Liability

The following table presents the changes in the Company's product warranty accrual.


	Total
Balance at June 30, 2023	$	1,282
Accruals for warranties issued during the period	6,153
Settlements made during the period	(1,424)
Balance at March 29, 2024	$	6,011

Schedule of Weighted-Average Shares

Weighted-average shares were calculated as follows:


	Third Quarters Ended		Nine Months Ended
	March 29, 2024	March 31, 2023	March 29, 2024	March 31, 2023
Basic weighted-average shares outstanding	57,698	56,511	57,536	56,310
Effect of dilutive equity instruments	—	385	—	—
Diluted weighted-average shares outstanding	57,698	56,896	57,536	56,310

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income
Beginning balance (in shares) at Jul. 01, 2022		55,680,000
Beginning balance at Jul. 01, 2022	$ 1,537,185	$ 557	$ 1,145,323	$ 385,774	$ 5,531
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		702,000
Issuance of common stock under employee stock incentive plans	0	$ 7	(7)
Issuance of common stock under employee stock purchase plan (in shares)		57,000
Issuance of common stock under employee stock purchase plan	2,393	$ 1	2,392
Issuance of common stock under defined contribution plan (in shares)		236,000
Issuance of common stock under defined contribution plan	11,582	$ 2	11,580
Retirement of common stock (in shares)		(1,000)
Retirement of common stock	(63)	$ 0	(63)
Stock-based compensation	28,110		28,110
Net loss	(20,099)			(20,099)
Other comprehensive income (loss)	1,791				1,791
Ending balance (in shares) at Mar. 31, 2023		56,674,000
Ending balance at Mar. 31, 2023	1,560,899	$ 567	1,187,335	365,675	7,322
Beginning balance (in shares) at Dec. 30, 2022		56,365,000
Beginning balance at Dec. 30, 2022	1,544,092	$ 564	1,173,026	360,519	9,983
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		225,000
Issuance of common stock under employee stock incentive plans	0	$ 2	(2)
Issuance of common stock under defined contribution plan (in shares)		84,000
Issuance of common stock under defined contribution plan	4,190	$ 1	4,189
Stock-based compensation	10,122		10,122
Net loss	5,156			5,156
Other comprehensive income (loss)	(2,661)				(2,661)
Ending balance (in shares) at Mar. 31, 2023		56,674,000
Ending balance at Mar. 31, 2023	$ 1,560,899	$ 567	1,187,335	365,675	7,322
Beginning balance (in shares) at Jun. 30, 2023	56,961,665	56,962,000
Beginning balance at Jun. 30, 2023	$ 1,566,685	$ 570	1,196,847	357,439	11,829
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		435,000
Issuance of common stock under employee stock incentive plans	0	$ 4	(4)
Issuance of common stock under employee stock purchase plan (in shares)		107,000
Issuance of common stock under employee stock purchase plan	3,163	$ 1	3,162
Issuance of common stock under defined contribution plan (in shares)		365,000
Issuance of common stock under defined contribution plan	12,439	$ 4	12,435
Retirement of common stock	(15)		(15)
Stock-based compensation	18,241		18,241
Net loss	(126,863)			(126,863)
Other comprehensive income (loss)	$ (857)				(857)
Ending balance (in shares) at Mar. 29, 2024	57,868,725	57,869,000
Ending balance at Mar. 29, 2024	$ 1,472,793	$ 579	1,230,666	230,576	10,972
Beginning balance (in shares) at Dec. 29, 2023		57,564,000
Beginning balance at Dec. 29, 2023	1,504,492	$ 576	1,220,343	275,150	8,423
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee stock incentive plans (in shares)		166,000
Issuance of common stock under employee stock incentive plans	0	$ 1	(1)
Issuance of common stock under defined contribution plan (in shares)		139,000
Issuance of common stock under defined contribution plan	4,222	$ 2	4,220
Stock-based compensation	6,104		6,104
Net loss	(44,574)			(44,574)
Other comprehensive income (loss)	$ 2,549				2,549
Ending balance (in shares) at Mar. 29, 2024	57,868,725	57,869,000
Ending balance at Mar. 29, 2024	$ 1,472,793	$ 579	$ 1,230,666	$ 230,576	$ 10,972

Employee Benefit Plan (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	9 Months Ended
Employee Benefit Plan (Details) - USD ($) $ in Thousands	Mar. 29, 2024	Mar. 31, 2023	Dec. 29, 2023	Mar. 29, 2024	Mar. 31, 2023
Retirement Benefits [Abstract]
Plan net liability	$ 4,156			$ 4,156
Plan net gain (loss)	56	$ (46)		169	$ (142)
Net periodic benefit cost	213	230		628	671
Expected employer contributions	1,155			$ 1,155
Maximum percentage of eligible participant annual compensation available to match				6.00%
Capitalized stock-based matching compensation expense			$ 2,705	$ 2,963
Share-based matching contributions	4,528	$ 3,288		12,180	$ 9,715
Deferred Compensation Plan Assets	52			52
Other Deferred Compensation Arrangements, Liability, Current and Noncurrent	$ 52			$ 52

Goodwill	9 Months Ended
Goodwill	Mar. 29, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill In accordance with FASB ASC 350, Intangibles-Goodwill and Other (“ASC 350”), the Company determines its reporting units based upon whether discrete financial information is available, if management regularly reviews the operating results of the component, the nature of the products offered to customers and the market characteristics of each reporting unit. A reporting unit is considered to be an operating segment or one level below an operating segment also known as a component. Component level financial information is reviewed by management across two divisions: Mission Systems and Microelectronics. Accordingly, these were determined to be the Company's reporting units. The Company performs its annual goodwill impairment test in the fourth quarter of each fiscal year. The Company estimates its fair value and compares the fair value with the carrying value of its reporting units, including goodwill using an income approach based upon a discounted cash flow (“DCF”) model to calculate the present value of cash flows to estimate its implied fair value. The future cash flows for the Company’s reporting units are projected based on the Company’s estimates, at that time, of future revenues, expenses, capital expenditures, and working capital. The discount rates used in the Company’s DCF model were based on a weighted-average cost of capital (“WACC”) determined from relevant market comparisons, adjusted upward for specific reporting unit risks (primarily the uncertainty of achieving projected operating cash flows). A terminal value growth rate is applied to the final year of the projected period, which reflects the Company’s estimate of stable, perpetual growth. The Company then calculated a present value of the respective cash flows for each reporting unit to arrive at an estimate of fair value under the income approach. In addition, the Company uses the market approach, which compares the reporting unit to publicly traded companies and transactions involving similar businesses, to support the conclusions of the income approach. Finally, the Company compared its estimates of fair values to its total market capitalization to assess the reasonableness of the reporting units combined determined fair value. The Company also assesses potential triggering events during interim reporting periods. During the third quarter ended March 29, 2024, the Company assessed events and circumstances to consider its reporting units for a potential triggering event, including: macroeconomic conditions, industry and market considerations, financial performance and expectations of projected financial performance and cash flows, changes in the Company's stock price in relation to the carrying value of its reporting units, among other relevant factors. As a result of the sustained decline in the Company's stock and overall market capitalization during the third quarter ended March 29, 2024, along with other qualitative considerations the Company concluded that there was a triggering event for its Mission Systems reporting unit that would require an interim impairment test. As of March 29, 2024, the Company completed a quantitative goodwill impairment analysis related to its Mission Systems reporting unit by comparing the fair value of the reporting unit with its carrying amount. In making this assessment, management relies on a number of factors including expected future operating results, business plans, economic projections, anticipated future cash flows, business trends, and declines in the Company's market capitalization. The Company determined the fair value of the reporting unit by using a DCF approach. Under the DCF approach, the Company estimated the future cash flows, as well as selected a risk-adjusted WACC of 8.5% to measure the present value of the anticipated cash flows. When determining future cash flow estimates, the Company considered historical results adjusted to reflect current and anticipated future operating conditions. The Company estimated cash flows for the reporting unit over a discrete period and a terminal period (considering expected long-term growth rates and trends). The Company then used the market approach to corroborate the results of the DCF approach. Under the market approach, the Company used revenue and earnings multiples based on comparable industry multiples to estimate the fair value of the reporting unit. If the carrying amount of a reporting unit exceeds the reporting unit’s fair value, the amount by which the carrying value exceeds the fair value is recognized as an impairment loss. Based on the interim quantitative evaluation, the Company determined that the Mission Systems reporting unit had an estimated fair value in excess of their carrying value of 2.5%. The Company concluded that the Mission Systems reporting unit's goodwill was not impaired. In order to evaluate the sensitivity of the estimated fair value for Mission Systems, the Company assessed an increase of 1.0% in the WACC under the DCF approach would have a material impact to the Mission Systems reporting unit's fair value determination. If there are adverse trends in the Mission Systems reporting unit's expected future operating results, business plans, economic projections, anticipated future cash flows, business trends, and Company's market capitalization, then it could result in the carrying value of the Mission Systems reporting unit exceeding its estimated fair value and impairment charges.

Stock-Based Compensation

9 Months Ended

Mar. 29, 2024

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

STOCK INCENTIVE PLANS

At March 29, 2024, the aggregate number of shares authorized for issuance under the Company’s Amended and Restated 2018 Stock Incentive Plan (the “2018 Plan”) is 7,862 shares, including 3,000 shares approved by the Company's shareholders on October 28, 2020 and 2,000 shares approved for future grant under the 2018 Plan by the Company's shareholders on October 26, 2022. On October 25, 2023, the Company's shareholders approved an additional 3,450 shares to be added to the 2018 plan. The 2018 Plan shares available for issuance also include 948 shares rolled into the 2018 Plan that were available for future grant under the Company’s 2005 Stock Incentive Plan, as amended and restated (the “2005 Plan”). The 2018 Plan replaced the 2005 Plan. The shares authorized for issuance under the 2018 Plan will continue to be increased by any future cancellations, forfeitures or terminations (other than by exercise) of awards under the 2005 Plan. The foregoing does not affect any outstanding awards under the 2005 Plan, which remain in full force and effect in accordance with their terms. The 2018 Plan provides for the grant of non-qualified and incentive stock options, restricted stock, stock appreciation rights and deferred stock awards to employees and non-employees. Stock options must be granted with an exercise price of not less than 100% of the fair value of the Company’s common stock on the date of grant and the options generally have a term of seven years. There were 4,623 available shares for future grant under the 2018 Plan at March 29, 2024.

subject to modification based on Mercury’s total shareholder return relative to the component companies within the Spade Defense Index.

EMPLOYEE STOCK PURCHASE PLAN

At March 29, 2024, the aggregate number of shares authorized for issuance under the Company’s 1997 Employee Stock Purchase Plan, as amended and restated (“ESPP”), is 2,300 shares, including 500 shares approved by the Company's shareholders on October 28, 2020. Under the ESPP, rights are granted to purchase shares of common stock at 85% of the lesser of the market value of such shares at either the beginning or the end of each six-month offering period. The ESPP permits employees to purchase common stock through payroll deductions, which may not exceed 10% of an employee’s compensation as defined in the ESPP. There were 107 and 57 shares issued under the ESPP during the nine months ended March 29, 2024 and March 31, 2023, respectively. Shares available for future purchase under the ESPP totaled 60 at March 29, 2024.

STOCK OPTION AND AWARD ACTIVITY

On August 15, 2023, the Company announced that William L. Ballhaus was appointed as the Company’s President and Chief Executive Officer. Mr. Ballhaus received an onboarding grant of premium-priced stock options ("New Hire Option") under the 2018 Plan. The Company and Mr. Ballhaus are parties to an employment agreement, which is included in exhibit 10.1 on Form 8-K filed by the Company with the SEC on August 15, 2023.

The New Hire Option is granted in four (4) tranches as follows: (w) 233,500 shares of the Company’s common stock with an exercise price equal to $42.00 (“Tranche 1”); (x) 233,500 shares of the Company’s common stock with an exercise price equal to $43.00 (“Tranche 2”); (y) 233,500 shares of the Company’s common stock with an exercise price equal to $46.00 (“Tranche 3”); and (z) 233,500 shares of the Company’s common stock with an exercise price equal to $49.00 (“Tranche 4”). Tranche 1 and Tranche 2 shall become vested and exercisable on the third anniversary of August 17, 2023 ("the Initial Grant Date") (subject to the Executive’s continued employment through such date) and shall expire on the fourth anniversary of the Initial Grant Date. Tranche 3 and Tranche 4 shall become vested and exercisable on the fourth anniversary of the Initial Grant Date (subject to the Executive’s continued employment through such date) and shall expire on the fifth anniversary of the Initial Grant Date.

The following table summarizes activity of the Company's stock option plans since June 30, 2023:


	Options Outstanding
	Number of Shares	Weighted Average Grant Date Fair Value		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value as of 3/29/24
Outstanding at June 30, 2023	—	$	—	$	—	—	—
Granted	934	12.71		45.00
Exercised	—			—
Canceled	—			—
Outstanding at March 29, 2024	934	$	12.71	$	45.00	2.93 years	—
Exercisable at March 29, 2024	—	$	—	$	—	—	—

There were no options vested or exercised during the third quarter ended March 29, 2024. Non-vested stock options are subject to the risk of forfeiture until the fulfillment of specified conditions. As of March 29, 2024, there was $10,024 of total unrecognized compensation cost related to non-vested options granted that is expected to be recognized over a weighted-average period 2.93 years from March 29, 2024.

The Company uses the Black-Scholes valuation model for estimating the fair value on the date of grant of stock options. The Company calculated the fair values of the options grants using the following weighted-average assumptions:


	Third Quarter Ended
	March 29, 2024
Expected volatility	45		%
Expected term	4 years
Risk-free interest rate	4.44		%
Expected dividend yield	—		%
Weighted-average grant date fair value per share	$	12.71

The expected volatility of options granted has been determined using a weighted average of the historical volatility of the Company’s stock for a period equal to the expected life of the option. The expected life of options has been determined using the average of the contractual term and the weighted average vesting term of the options. The risk-free interest rate is based on a zero-coupon U.S. treasury instrument whose term is consistent with the expected life of the stock options. The Company has not paid and does not anticipate paying cash dividends on its shares of common stock; therefore, the expected dividend yield is assumed to be zero. The Company applied an estimated annual forfeiture rate based on historical averages in determining the expense recorded in each period. There were no stock options granted during fiscal year ended June 30, 2023.

The following table summarizes the status of the Company’s non-vested restricted stock awards and deferred stock awards since June 30, 2023:


	Non-vested Restricted Stock Awards
	Number of Shares	Weighted Average Grant Date Fair Value
Outstanding at June 30, 2023	1,339	$	54.45
Granted	1,334	36.38
Vested	(435)	56.80
Forfeited	(557)	47.90
Outstanding at March 29, 2024	1,681	$	41.66

STOCK-BASED COMPENSATION EXPENSE

The Company recognizes expense for its share-based payment plans in the Consolidated Statements of Operations and Comprehensive (Loss) Income in accordance with ASC 718, Compensation - Stock Compensation (“ASC 718”). The Company had $1,033 and $1,215 of capitalized stock-based compensation expense on the Consolidated Balance Sheets for the periods ended March 29, 2024 and June 30, 2023, respectively. Under the fair value recognition provisions of ASC 718, stock-based compensation cost is measured at the grant date based on the value of the award and is recognized as expense over the service period, net of estimated forfeitures.

The following table presents share-based compensation expenses included in the Company’s Consolidated Statements of Operations and Comprehensive (Loss) Income:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Cost of revenues	$	1,299	$	630	$	2,119	$	1,666
Selling, general and administrative	4,123		7,577		11,626		20,732
Research and development	1,498		1,732		4,678		5,048
Stock-based compensation expense before tax	6,920		9,939		18,423		27,446
Income taxes	(1,868)		(2,684)		(4,974)		(7,410)
Stock-based compensation expense, net of income taxes	$	5,052	$	7,255	$	13,449	$	20,036

Stock-Based Compensation - Schedule of Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended	9 Months Ended
	Mar. 29, 2024	Mar. 29, 2024	Jun. 30, 2023
Weighted Average Grant Date Fair Value
Outstanding at end of period (in usd per share)	$ 12.71	$ 12.71
Stock Options
Number of Shares
Outstanding at beginning of period (in shares)		0
Granted (in shares)		934
Exercised (in shares)	0	0
Cancelled (in shares)		0
Outstanding at end of period (in shares)	934	934
Exercisable (in shares)	0	0
Weighted Average Grant Date Fair Value
Outstanding at beginning of period (in usd per share)		$ 0
Granted (in usd per share)		12.71
Outstanding at end of period (in usd per share)	$ 12.71	12.71
Exercisable (in usd per share)		0
Weighted Average Exercise Price
Outstanding at beginning of period (in usd per share)		0
Granted (in usd per share)		45.00
Exercised (usd per share)		0
Cancelled (usd per share)		0
Outstanding at end of period (in usd per share)	45.00	45.00
Exercisable (in usd per share)	$ 0	$ 0
Weighted Average Remaining Contractual Term (Years)		2 years 11 months 4 days
Aggregate Intrinsic Value as of 3/29/24	$ 0	$ 0	$ 0

Stock-Based Compensation - Schedule of Valuation Assumptions (Details)	9 Months Ended
	Mar. 29, 2024 $ / shares
Share-Based Payment Arrangement [Abstract]
Expected volatility	45.00%
Expected term	4 years
Risk-free interest rate	4.44%
Expected dividend yield	0.00%
Weighted average grant date fair value per share (in usd per share)	$ 12.71

Restructuring (Tables)

9 Months Ended

Mar. 29, 2024

Restructuring and Related Activities [Abstract]

Schedule of Charges for Restructuring

The following table presents the detail of charges included in the Company’s liability for restructuring and other charges:


	Severance & Related
Balance at June 30, 2023	$	1,529
Restructuring charges	19,389

Cash paid	(14,139)

Balance at March 29, 2024	$	6,779

Operating Segment, Geographic Information and Significant Customers - Schedule of Revenue by Major Customers (Details) - Revenue Benchmark - Customer Concentration Risk	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Major Customers
Revenue, Major Customer [Line Items]
Concentration risk, percentage	49.00%	42.00%	32.00%	49.00%
U.S. Navy
Revenue, Major Customer [Line Items]
Concentration risk, percentage				10.00%
RTX Corporation
Revenue, Major Customer [Line Items]
Concentration risk, percentage	11.00%	18.00%	10.00%	14.00%
L3Harris
Revenue, Major Customer [Line Items]
Concentration risk, percentage	13.00%		11.00%
Lockheed Martin Corporation
Revenue, Major Customer [Line Items]
Concentration risk, percentage	15.00%	13.00%	11.00%	14.00%
Northrop Grumman
Revenue, Major Customer [Line Items]
Concentration risk, percentage	10.00%	11.00%		11.00%

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net loss	$ (44,574)	$ 5,156	$ (126,863)	$ (20,099)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Stock-Based Compensation - Additional Information (Details) $ / shares in Units, shares in Thousands, $ in Thousands				3 Months Ended	9 Months Ended
	Oct. 25, 2023 shares	Aug. 15, 2023 USD ($) tranche $ / shares	Oct. 28, 2020 shares	Mar. 29, 2024 USD ($) shares	Mar. 29, 2024 USD ($) shares	Mar. 31, 2023 shares	Jun. 30, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price, percentage of fair value threshold				100.00%	100.00%
Unrecognized compensation cost \| $				$ 10,024	$ 10,024
Expected dividend yield					0.00%
Allocation of recognized period costs, capitalized amount \| $				$ 1,033	$ 1,033		$ 1,215
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock under employee stock purchase plan (in shares)					107	57
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under stock incentive plan (in shares)			500	2,300	2,300
Shares available for future grant (in shares)				60	60
Purchase price as a percentage of the lesser of the market value of such shares at either the beginning or the end of each nine-month offering period					85.00%
Offering period					6 months
Percentage of employee compensation that may be uses to purchase common stock through payroll deductions, maximum					10.00%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised (in shares)				0	0
Options vested (in shares)				0
Weighted average recognition period					2 years 11 months 4 days
Stock options granted (in shares)					0
2018 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under stock incentive plan (in shares)				7,862	7,862
Number of additional shares authorized (in shares)	3,450		3,000
Shares available for future grant (in shares)				4,623,000	4,623,000
2018 Stock Incentive Plan \| New Hire Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of tranches \| tranche		4
2018 Stock Incentive Plan \| New Hire Option \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares) \| $		$ 233,500
Exercise price of shares granted (in usd per share) \| $ / shares		$ 42.00
Expiration period		4 years
Vested and exercisable period		3 years
2018 Stock Incentive Plan \| New Hire Option \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares) \| $		$ 233,500
Exercise price of shares granted (in usd per share) \| $ / shares		$ 43.00
Expiration period		4 years
Vested and exercisable period		3 years
2018 Stock Incentive Plan \| New Hire Option \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares) \| $		$ 233,500
Exercise price of shares granted (in usd per share) \| $ / shares		$ 46.00
Expiration period		5 years
Vested and exercisable period		4 years
2018 Stock Incentive Plan \| New Hire Option \| Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares) \| $		$ 233,500
Exercise price of shares granted (in usd per share) \| $ / shares		$ 49.00
Expiration period		5 years
Vested and exercisable period		4 years
2005 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized (in shares)			2,000
Shares available for future grant (in shares)				948	948
2005 Stock Incentive Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock option					7 years

Operating Segment, Geographic Information and Significant Customers

9 Months Ended

Mar. 29, 2024

Segment Reporting [Abstract]

Operating Segment, Geographic Information and Significant Customers

Operating segments are defined as components of an enterprise evaluated regularly by the Company's chief operating decision maker (“CODM”) in deciding how to allocate resources and assess performance. The Company evaluated its internal organization under FASB ASC 280, Segment Reporting (“ASC 280”) to determine whether there has been a change to its conclusion of a single operating and reportable segment. The Company concluded there has been no changes given the CODM continues to evaluate and manage the Company on the basis of one operating and reportable segment. The Company utilized the management approach for determining its operating segment in accordance with ASC 280.

The geographic distribution of the Company’s revenues as determined by country in which the Company's legal subsidiary is domiciled is summarized as follows:


	U.S.		Europe		Asia Pacific		Eliminations		Total
THIRD QUARTER ENDED MARCH 29, 2024
Net revenues to unaffiliated customers	$	199,834	$	8,418	$	6	$	—	$	208,258
Inter-geographic revenues	1,248		211		—		(1,459)		—
Net revenues	$	201,082	$	8,629	$	6	$	(1,459)	$	208,258
THIRD QUARTER ENDED MARCH 31, 2023
Net revenues to unaffiliated customers	$	252,945	$	10,525	$	9	$	—	$	263,479
Inter-geographic revenues	1,794		26		—		(1,820)		—
Net revenues	$	254,739	$	10,551	$	9	$	(1,820)	$	263,479
NINE MONTHS ENDED MARCH 29, 2024
Net revenues to unaffiliated customers	$	554,877	$	31,817	$	18	$	—	$	586,712
Inter-geographic revenues	4,253		507		—		(4,760)		—
Net revenues	$	559,130	$	32,324	$	18	$	(4,760)	$	586,712
NINE MONTHS ENDED MARCH 31, 2023
Net revenues to unaffiliated customers	$	690,922	$	29,708	$	16	$	—	$	720,646
Inter-geographic revenues	1,873		398		—		(2,271)		—
Net revenues	$	692,795	$	30,106	$	16	$	(2,271)	$	720,646

The Company offers a broad family of products and processing solutions designed to meet the full range of requirements in compute-intensive, signal processing, image processing and command and control applications. To maintain a competitive advantage, the Company seeks to leverage technology investments across multiple product lines and product solutions.

The Company’s products are typically compute-intensive and require extremely high bandwidth and high throughput. These processing solutions often must also meet significant size, weight and power ("SWaP") constraints for use in aircraft, unmanned aerial vehicles, ships and other platforms and be ruggedized for use in harsh environments. The Company's products transform the massive streams of digital data created in these applications into usable information in real time. The systems can scale from a few processors to thousands of processors.

In recent years, the Company completed a series of acquisitions that changed its technological capabilities, applications and end markets. As these acquisitions and changes occurred, the Company's proportion of revenue derived from the sale of components in different technological areas, and modules, sub-assemblies and integrated subsystems which combine technologies into more complex diverse products has shifted. The following tables present revenue consistent with the Company's strategy of expanding its technological capabilities and program content. As additional information related to the Company’s products by end user, application, product grouping and/or platform is attained, the categorization of these products can vary over time. When this occurs, the Company reclassifies revenue by end user, application, product grouping and/or platform for prior periods. Such reclassifications typically do not materially change the underlying trends of results within each revenue category.

The following table presents the Company's net revenue by end user for the periods presented:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Domestic(1)	$	177,973	$	238,159	$	506,262	$	648,948
International/Foreign Military Sales(2)	30,285		25,320		80,450		71,698
Total Net Revenue	$	208,258	$	263,479	$	586,712	$	720,646

(1) Domestic revenues consist of sales where the end user is within the U.S., as well as sales to prime defense contractor customers where the ultimate end user location is not defined.

The following table presents the Company's net revenue by end application for the periods presented:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Radar(1)	$	26,647	$	83,853	$	68,460	$	180,968
Electronic Warfare(2)	25,999		35,939		82,517		104,746
Other Sensor & Effector(3)	47,681		20,143		91,482		70,679
Total Sensor & Effector	100,327		139,935		242,459		356,393
C4I(4)	84,605		104,188		291,279		311,963
Other(5)	23,326		19,356		52,974		52,290
Total Net Revenue	$	208,258	$	263,479	$	586,712	$	720,646

(1) Radar includes end-use applications where radio frequency signals are utilized to detect, track and identify objects.

(2) Electronic Warfare includes end-use applications comprising the offensive and defensive use of the electromagnetic spectrum.

(3) Other Sensor and Effector products include all Sensor and Effector end markets other than Radar and Electronic Warfare.

(4) C4I includes rugged secure rackmount servers that are designed to drive the most powerful military processing applications.

(5) Other products include all component and other sales where the end use is not specified.

The following table presents the Company's net revenue by product grouping for the periods presented:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Components(1)	$	57,308	$	53,187	$	136,257	$	137,528
Modules and Sub-assemblies(2)	43,441		49,992		116,825		143,038
Integrated Subsystems(3)	107,509		160,300		333,630		440,080
Total Net Revenue	$	208,258	$	263,479	$	586,712	$	720,646

The following table presents the Company's net revenue by platform for the periods presented:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Airborne(1)	$	97,092	$	126,674	$	329,661	$	373,878
Land(2)	21,011		58,816		70,629		119,483
Naval(3)	28,710		39,961		68,255		104,900
Other(4)	61,445		38,028		118,167		122,385
Total Net Revenues	$	208,258	$	263,479	$	586,712	$	720,646

(1) Airborne platform includes products that relate to personnel, equipment or pieces of equipment designed for airborne applications.

(2) Land platform includes products that relate to fixed or mobile equipment, or pieces of equipment for personnel, weapon systems, vehicles and support elements operating on land.

(3) Naval platform includes products that relate to personnel, equipment or pieces of equipment designed for naval operations.

(4) All platforms other than Airborne, Land or Naval.

The geographic distribution of the Company’s identifiable long-lived assets is summarized as follows:


	U.S.		Europe		Total
March 29, 2024	$	111,055	$	2,852	$	113,907
June 30, 2023	$	116,381	$	3,173	$	119,554

Identifiable long-lived assets exclude right-of-use assets, goodwill, and intangible assets.

Customers comprising 10% or more of the Company’s revenues for the periods shown are as follows:


	Third Quarters Ended				Nine Months Ended
	March 29, 2024		March 31, 2023		March 29, 2024		March 31, 2023
Lockheed Martin Corporation	15	%	13	%	11	%	14	%
L3Harris	13	%	*		11	%	*
RTX Corporation	11	%	18	%	10	%	14	%
Northrop Grumman	10	%	11	%	*		11	%
U.S. Navy	*		*		*		10	%
	49	%	42	%	32	%	49	%

* Indicates that the amount is less than 10% of the Company's revenue for the respective period.

While the Company typically has customers from which it derives 10% or more of its revenue, the sales to each of these customers are spread across multiple programs and platforms. There were no programs comprising 10% or more of the Company's revenues for the third quarters and nine months ended March 29, 2024 and March 31, 2023.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Fair Value of Financial Instruments - Schedule of Financial Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value - Fair Value, Measurements, Recurring $ in Thousands	Mar. 29, 2024 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$ 3,626
Interest rate swap \| Swap Agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	3,626
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	0
Level 1 \| Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	3,626
Level 2 \| Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	3,626
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	0
Level 3 \| Interest rate swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities measured at fair value	$ 0

Income Taxes	9 Months Ended
Income Taxes	Mar. 29, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded an income tax benefit of $12,643 and $10,446 on a loss before income taxes of $57,217 and $5,290 for the third quarters ended March 29, 2024 and March 31, 2023, respectively. The Company recorded an income tax benefit of $43,811 and $13,619 on a loss before income taxes of $170,674 and $33,718 for the nine months ended March 29, 2024 and March 31, 2023, respectively. During the third quarter and nine months ended March 29, 2024, the Company recognized a tax provision of $772 and $2,419 related to stock compensation shortfalls, respectively. During the third quarter and nine months ended March 31, 2023 the Company recognized a tax (benefit) provision of $(91) and $1,655 related to stock compensation shortfalls, respectively. During the third quarter ended March 31, 2023, the Company concluded its income tax audit with the Internal Revenue Service for fiscal years 2016 through 2018 and subsequently recognized a tax benefit of $1,335 related to a release of income tax reserves for unrecognized income tax benefits. The effective tax rate for the third quarters and nine months ended March 29, 2024 and March 31, 2023 differed from the federal statutory rate primarily due to federal and state research and development credits, non-deductible compensation, stock compensation shortfalls and state taxes. The effective tax rate for the third quarter and nine months ended March 31, 2023 also differed from the federal statutory rate due to the release of income tax reserves for previously unrecognized income tax benefits. The Tax Cuts and Jobs Act of 2017 requires companies to capitalize and amortize domestic research and development expenditures over five years for tax purposes, and foreign research and development expenditures over fifteen years for tax purposes, effective for the Company beginning in the fiscal year ended June 30, 2023. Based on guidance issued during the year, the Company refined the amount of research and development expenditures capitalized and recorded certain current and deferred tax adjustments in the third quarter ended March 29, 2024. The Company will continue to monitor guidance and any proposed regulations and adjust the estimates as necessary.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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+ Details

Cover - shares	9 Months Ended
Cover - shares	Mar. 29, 2024	Apr. 30, 2024
Document Documentand Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 29, 2024
Document Transition Report	false
Entity File Number	001-41194
Entity Registrant Name	MERCURY SYSTEMS, INC.
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	04-2741391
Entity Address, Address Line One	50 MINUTEMAN ROAD
Entity Address, City or Town	ANDOVER
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01810
City Area Code	978
Local Phone Number	256-1300
Title of 12(g) Security	Common Stock, par value $0.01 per share
Trading Symbol	MRCY
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		59,345,998
Entity Central Index Key	0001049521
Current Fiscal Year End Date	--06-28
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false