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OMB APPROVAL
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OMB Number 3235-0287
Expires: December 31, 2001
Estimated average burden
hours per response ....... 0.5
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U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(f) of the Investment Company Act of 1940
[ ] Check this box if no longer subject of Section 16. Form 4 or Form 5
obligations may continue. See Instruction 1(b).
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1. Name and Address of Reporting Person
Flood, Douglas
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(Last) (First) (Middle)
40 Constitution Drive
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(Street)
Southborough, MA 01772
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(City) (State) (Zip)
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2. Issuer Name and Ticker or Trading Symbol
Mercury Computer Systems, Inc. ("MRCY")
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3. IRS or Social Security Number of Reporting Person (Voluntary)
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4. Statement for Month/Year
February 2000
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5. If Amendment, Date of Original (Month/Year)
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6. Relationship of Reporting Person to Issuer
(Check all applicable)
[ ] Director [ ] 10% Owner
[ X ] Officer (give title below) [ ] Other (specify below)
Vice President, Corporate Development
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7. Individual or Joint/Group Filing (Check Applicable Line)
[X ] Form filed by One Reporting Person
[ ] Form filed by More than One Reporting Person
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Table I -- Non-Derivative Securities Acquired, Disposed of,
or Beneficially Owned
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6.
4. 5. Owner-
Securities Acquired (A) or Amount of ship
3. Disposed of (D) Securities Form: 7.
Transaction (Instr. 3, 4 and 5) Beneficially Direct Nature of
2. Code ------------------------------- Owned at End (D) or Indirect
1. Transaction (Instr. 8) (A) of Month Indirect Beneficial
Title of Security Date ------------ Amount or Price (Instr. 3 (I) Ownership
(Instr. 3) (mm/dd/yy) Code V (D) and 4) (Instr.4) (Instr. 4)
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Common Stock 2/16/2000 M 300 A $8.625 206 (1) D
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Common Stock 2/16/2000 S 300 D $41.875 206 (1) D
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(1) Includes 206 shares acquired December 31, 1999 pursuant to Mercury's
Stock Purchase Plan
Reminder: Report on a separate line for each class of securities beneficially
owned directly or indirectly
FORM 4 (continued)
Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
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9. 10.
Number Owner-
of ship
2. Deriv- of
Conver- 5. 7. ative Deriv- 11.
sion Number of Title and Amount Secur- ative Nature
of Derivative 6. of Underlying 8. ities Secur- of
Exer- 4. Securities Date Securities Price Bene- ity: In-
cise 3. Trans- Acquired (A) Exercisable and (Instr. 3 and 4) of ficially Direct direct
Price Trans- action or Disposed Expiration Date ---------------- Deriv- Owned (D) or Bene-
1. of action Code of(D) (Month/Day/Year) Amount ative at End In- ficial
Title of Deriv- Date (Instr. (Instr. 3, ---------------- or Secur- of direct Owner-
Derivative ative (Month/ 8) 4 and 5) Date Expira- Number ity Month (I) ship
Security Secur- Day/ ------ ------------ Exer- tion of (Instr. (Instr. (Instr. (Instr.
(Instr. 3) ity Year) Code V (A) (D) cisable Date Title Shares 5) 4) 4) 4)
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Stock Option
(right to buy) $8.625 2/16/00 M 300 (2) 10/27/08 Common 300 39,700 D
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Stock Option
(right to buy) $23.438 11/2/99 A V 18,000 (3) 11/2/09 Common 18,000 18,000 D
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Explanation of Responses:
(2) This option became/becomes exercisable as to 8,000 shares on each of October 27, 1999, October 27, 2000, October 27, 2001,
October 27, 2002 and October 27, 2003.
(3) This option became/becomes exercisable as to 4,500 shares on each of November 2, 2000, November 2, 2001, November 2, 2002 and
November 2, 2003.
/s/Douglas Flood January 18, 2001
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**Signature of Reporting Person Date
** Intentional misstatements or omissions of facts constitute Federal Criminal
Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed.
If space provided is insufficient, see Instruction 6 for procedures.
Potential persons who are to respond to the collection of information
contained in this form are not required to respond unless the form
displays a currently valid OMB Number.
