-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, CHdYkZgRqUc4YorrG+rSzB+5Dx6bfBR5tDrrEsTbJMFkrCjzlK3g4KPqlOPuJZim uBJBbbcipOZCY8Bye0rrQg== 0000929638-00-000023.txt : 20000215 0000929638-00-000023.hdr.sgml : 20000215 ACCESSION NUMBER: 0000929638-00-000023 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20000214 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MERCURY COMPUTER SYSTEMS INC CENTRAL INDEX KEY: 0001049521 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRONIC COMPONENTS & ACCESSORIES [3670] IRS NUMBER: 042741391 STATE OF INCORPORATION: MA FISCAL YEAR END: 0630 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-52823 FILM NUMBER: 537993 BUSINESS ADDRESS: STREET 1: 199 RIVERNECK RD CITY: CHELMSFORD STATE: MA ZIP: 01824 BUSINESS PHONE: 9782561300 MAIL ADDRESS: STREET 1: 199 RIVERNECK ROAD CITY: CHELMSFORD STATE: MA ZIP: 01824 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: MEMORIAL DRIVE TRUST CENTRAL INDEX KEY: 0000901505 STANDARD INDUSTRIAL CLASSIFICATION: [] STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: C/O MDT ADVISERS STREET 2: 125 CAMBRIDGE PARK DR CITY: CAMBRIDGE STATE: MA ZIP: 02140 MAIL ADDRESS: STREET 1: 125 CAMBRIDGEPARK DRIVE, 6TH FLOOR STREET 2: C/O MDT ADVISERS CITY: CAMBRIDGRE STATE: MA ZIP: 02140 SC 13G/A 1 SCHEDULE 13G AMENDMENT FOR MERCURY COMPUTER SYS SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (Amendment No. 1) 1/ MERCURY COMPUTER SYSTEMS, INC. ---------------------------------------------------------------------- (Name of Issuer) Common Stock, $0.01 par value per share ---------------------------------------------------------------------- (Title or Class of Securities) 589378-10-8 ---------------------------------------------------------------------- (CUSIP Number) December 31, 1999 ---------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] Rule 13d-1(b) [_] Rule 13d-1(c) [_] Rule 13d-1(d) 1/ The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP No. 589378-10-8 13G Page 2 of 5 Pages --- - - --------- --------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Memorial Drive Trust #04-2272266 Plan #001 - --------- --------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) [_] N/A (b) [_] - --------- --------------------------------------------------------------------- 3 SEC USE ONLY - --------- --------------------------------------------------------------------- 4 CITIZENSHIP OF PLACE OR ORGANIZATION Massachusetts - -------------------------------- ---------- ----------------------------------- 5 SOLE VOTING POWER NUMBER OF 2,385,022 ---------- ----------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 ---------- ----------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 2,385,022 ---------- ----------------------------------- WITH 8 SHARED DISPOSITIVE POWER 0 - --------- --------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,385,022 - --------- --------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) [_] N/A - --------- --------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.44% - --------- --------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON (See Instructions) EP - --------- --------------------------------------------------------------------- CUSIP No. 589378-10-8 13G Page 3 of 5 Pages --- - ITEM 1(a). Name of Issuer: Mercury Computer Systems, Inc. ITEM 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 199 Riverneck Road Chelmsford, MA 01824-2820 ITEM 2(a). Name of PERSON FILING: Memorial Drive Trust ("MDT") ITEM 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: 125 CambridgePark Drive 6th Floor Cambridge, MA 02140 ITEM 2(c). PLACE OF ORGANIZATION: Massachusetts ITEM 2(d). TITLE OF CLASS OF SECURITIES: Common Stock, $0.01 par value ITEM 2(e). CUSIP Number: 589378-10-8 CUSIP No. 589378-10-8 13G Page 4 of 5 Pages --- - ITEM 3. If this Statement is Filed Pursuant to Rules 13d-1(b), or 13d-2(b), Check Whether the Person Filing is a: (a) [_] Broker or dealer registered under Section 15 of the Act. (b) [_] Bank as defined in Section 3(a)(6) of the Act. (c) [_] Insurance Company as defined in Section 3(a)(19) of the Act. (d) [_] Investment Company registered under Section 8 of the Investment Company Act. (e) [_] Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940. (f) [X] Employee Benefit Plan, Pension Fund which is subject to the provisions of the Employee Retirement Income Security Act of 1974 or Endowment Fund; see 13d-1(b)(1)(ii)(F). (g) [_] Parent Holding Company, in accordance with Rule 13d-1(b)(1)(ii)(G); see Item 7. (h) [_] Group, in accordance with Rule 13d-1(b)(1)(ii)(H). ITEM 4. OWNERSHIP: (a) Amount beneficially owned: 2,385,022 shares (b) Percent of class: 11.44% (c) Number of shares as to which such person has: (i) Sole Power to vote or to direct the vote: 2,385,022 shares (ii) Shared power to vote or to direct the vote: None (iii)Sole power to dispose or to direct the disposition of: 2,385,022 shrs (iv) Shared power to dispose or to direct the disposition of: None ITEM 5. Ownership of Five Percent or Less of a Class: Not applicable. ITEM 6. Ownership of More than Five Percent on Behalf of Another Person: Not applicable. ITEM 7. Identification and Classification of the Subsidiary which ACQUIRED the Security Being Reported on by the Parent Holding Company: Not applicable. ITEM 8. Identification and Classification of Members of the Group: Not applicable. CUSIP No. 589378-10-8 13G Page 5 of 5 Pages --- - ITEM 9. Notice of Dissolution of Group: Not applicable. ITEM 10. Certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purposes or effect. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 11, 2000 ------------------------------- (Date) MEMORIAL DRIVE TRUST By: /s/ R. Schorr Berman -------------------------------- R. Schorr Berman Administrator and Chief Executive Officer -----END PRIVACY-ENHANCED MESSAGE-----