-----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, Fhsfj0oi7XNcOMWLxHUTsb8lR4dJL1yqoW1Zg6LsQHGIebZM4giiYGImSLAojACN N2mgc7nZy4m7simJUBtJEA== 0000912938-01-000125.txt : 20010213 0000912938-01-000125.hdr.sgml : 20010213 ACCESSION NUMBER: 0000912938-01-000125 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20010212 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MARTEK BIOSCIENCES CORP CENTRAL INDEX KEY: 0000892025 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 521399362 STATE OF INCORPORATION: DE FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: SC 13G SEC ACT: SEC FILE NUMBER: 005-42613 FILM NUMBER: 1532506 BUSINESS ADDRESS: STREET 1: 6480 DOBBIN RD CITY: COLUMBIA STATE: MD ZIP: 21045 BUSINESS PHONE: 4107400081 MAIL ADDRESS: STREET 1: 6480 DOBBIN RD CITY: COLUMBIA STATE: MD ZIP: 21045 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CENTRAL INDEX KEY: 0000912938 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 500 BOYLSTON ST STREET 2: 15TH FL CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 6179545261 MAIL ADDRESS: STREET 1: 500 BOYLSTON STREET STREET 2: 15TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 SC 13G 1 0001.txt MARTEK BIOSCIENCES CORP. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )* Martek Biosciences Corp. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock - -------------------------------------------------------------------------------- (Title of Class of Securities) 57290110 - -------------------------------------------------------------------------------- (CUSIP Number) Check the following box if a fee is being paid with this |_| statement. (A fee is not required only if the filing person: (1) has a previous statement on file reporting beneficial ownership of more than five percent of the class of securities described in Item 1; and (2) has filed no amendment subsequent thereto reporting beneficial ownership of five percent or less of such class.) (See Rule 13d-7.) *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). (Continued on following page(s)) Page 1 of 4 Pages SEC 1745 (10-85) CUSIP NO. 57290110 13G PAGE 2 OF 4 PAGES - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Massachusetts Financial Services Company ("MFS") I.R.S. Identification No.: 04-2747644 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) / / - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 1,147,382 shares of common stock BENEFICIALLY - -------------------------------------------------------------------------------- OWNED BY 6 SHARED VOTING POWER EACH - -------------------------------------------------------------------------------- REPORTING 7 SOLE DISPOSITIVE POWER PERSON 1,148,582** shares of common stock WITH - -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,148,582** shares of common stock of which shares are also beneficially owned by certain other non-reporting entities as well as MFS. - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 6.3% (as calculated pursuant to Rule 13d-3(d)(1)(i)) - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IA - -------------------------------------------------------------------------------- ** These 1,148,582 shares of common stock include 810,233 shares of common stock and 338,349 shares of common stock which may be acquired through the conversion of convertible bonds. *SEE INSTRUCTION BEFORE FILLING OUT! SCHEDULE 13G PAGE 3 OF 4 PAGES ITEM 1: (a) NAME OF ISSUER: Martek Biosciences Corp. (b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 6480 Dobbin Rd. Columbia, MD 21045 ITEM 2: (a) NAME OF PERSON FILING: Massachusetts Financial Services Company ("MFS") (b) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: 500 Boylston Street Boston, MA 02116 (c) CITIZENSHIP: See Item 4 on page 2 (d) TITLE OF CLASS OF SECURITIES: Common Stock (e) CUSIP NUMBER: 57290110 ITEM 3: See Item 12 on page 2 ITEM 4: (a) AMOUNT BENEFICIALLY OWNED: See Item 9 on page 2 (b) PERCENT OF CLASS: See Item 11 on page 2 (c) NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS VOTING AND DISPOSITIVE POWERS: See Items 5 and 7 on page 2 SCHEDULE 13G PAGE 4 OF 4 PAGES ITEM 5: OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS: Inapplicable ITEM 6: OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON: Inapplicable ITEM 7: IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY: Inapplicable ITEM 8: IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP: Inapplicable ITEM 9: NOTICE OF DISSOLUTION OF GROUP: Inapplicable 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. 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. Date: February 12, 2001 Massachusetts Financial Services Company By: STEPHEN E. CAVAN Stephen E. Cavan Senior Vice President, Secretary and General Counsel -----END PRIVACY-ENHANCED MESSAGE-----