SC 13G 1 b41921ccsc13g.txt GREYLOCK LIMITED PARTNERSHIP UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G 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._) Centene Corporation -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, $.001 par value per share -------------------------------------------------------------------------------- (Title of Class of Securities) 15135B101 ------------ (CUSIP Number) December 31, 2001 -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [ ] Rule 13d-1(c) [X] Rule 13d-1(d) * 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. 15135B101 13G PAGE 2 OF 8 PAGES --------- ------------------ -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). Greylock Limited Partnership -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- (5) SOLE VOTING POWER NUMBER OF SHARES 2,127,799 BENEFICIALLY -------------------------------------------------------- OWNED BY (6) SHARED VOTING POWER EACH REPORTING -0- PERSON WITH: -------------------------------------------------------- (7) SOLE DISPOSITIVE POWER 2,127,799 -------------------------------------------------------- (8) SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,127,799 -------------------------------------------------------------------------------- (10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 21% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON* PN -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 15135B101 13G PAGE 3 OF 8 PAGES --------- ------------------ -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). Robert P. Henderson -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION United States -------------------------------------------------------------------------------- (5) SOLE VOTING POWER NUMBER OF SHARES -0- BENEFICIALLY -------------------------------------------------------- OWNED BY (6) SHARED VOTING POWER EACH REPORTING 2,127,799 PERSON WITH: -------------------------------------------------------- (7) SOLE DISPOSITIVE POWER 2,127,799 -------------------------------------------------------- (8) SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,127,799 -------------------------------------------------------------------------------- (10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions) -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 21% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- * SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 15135B101 13G PAGE 4 OF 8 PAGES --------- ------------------ -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY). Henry F. McCance -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION United States -------------------------------------------------------------------------------- (5) SOLE VOTING POWER NUMBER OF SHARES -0- BENEFICIALLY -------------------------------------------------------- OWNED BY (6) SHARED VOTING POWER EACH REPORTING 2,127,799 PERSON WITH: -------------------------------------------------------- (7) SOLE DISPOSITIVE POWER 2,127,799 -------------------------------------------------------- (8) SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,127,799 -------------------------------------------------------------------------------- (10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 21% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 15135B101 13G PAGE 5 OF 8 PAGES --------- ------------------ ITEM 1(a) NAME OF ISSUER: Centene Corporation ITEM 1(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 7711 Carondelet Avenue Suite 800 St. Louis, MO 63105 ITEM 2(a) NAME OF PERSON FILING: Greylock Limited Partnership ("GLP"); Henry F. McCance and Robert P. Henderson, each a Co-Managing General Partner of GLP (each a "Co-Managing General Partner"). ITEM 2(b) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: The address of the reporting persons is: 880 Winter Street Waltham, Massachusetts 02451 ITEM 2(c) CITIZENSHIP: GLP is a limited partnership organized under the laws of the State of Delaware. Each of Mr. Henderson and Mr. McCance is a citizen of the United States. ITEM 2(d) TITLE OF CLASS OF SECURITIES: Common Stock, par value $.001 per share (the "Common Stock"). ITEM 2(e) CUSIP NUMBER: 15135B101 ITEM 3 DESCRIPTION OF PERSON FILING: Not applicable. ITEM 4 OWNERSHIP: (a) AMOUNT BENEFICIALLY OWNED: GLP is the record holder of 2,127,799 shares of Common Stock and may be deemed to beneficially own the 2,127,799 shares of Common Stock held of record by GLP. Mr. Henderson, as a Co-Managing General Partner of GLP, may be deemed to beneficially own the 2,129,799 shares of Common Stock held of record by GLP. Mr. McCance, as a Co-Managing General Partner of GLP, may be deemed to beneficially own the 2,127,799 shares of Common Stock held of record by GLP. The filing of this statement shall not be construed as an admission that any of the reporting persons are, for the purpose of Section 13(d) or 13(g) of the Act, the beneficial owners of any securities covered under this statement. (b) PERCENT OF CLASS: GELP: 21% Mr. Henderson: 21% Mr. McCance: 21% CUSIP NO. 15135B101 13G PAGE 6 OF 8 PAGES --------- ------------------ (c) NUMBER OF SHARES AS TO WHICH THE PERSON HAS: (i) sole voting power; (ii) shared voting power; (iii) sole dispositive power; (iv) shared dispositive power: GLP may be deemed to have sole power to vote and dispose of 2,127,799 shares of Common Stock held of record by it. Mr. Henderson, as a Co-Managing General Partner of GLP, may be deemed to have sole power to dispose of and shared power to vote 2,127,799 shares of Common Stock. Mr. McCance, as a Co-Managing General Partner of GLP, may be deemed to have sole power to dispose of and shared power to vote 2,127,799 shares of Common Stock. ITEM 5 OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS: If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ]. 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. ITEM 9 NOTICE OF DISSOLUTION OF GROUP: Not applicable. ITEM 10 CERTIFICATION: Not applicable. CUSIP NO. 15135B101 13G PAGE 7 OF 8 PAGES --------- ------------------ SIGNATURE After reasonable inquiry and to the best of the knowledge and belief of each of the undersigned, each of the undersigned hereby certifies that the information set forth in this statement is true, complete and correct. DATED: February 13, 2002. GREYLOCK LIMITED PARTNERSHIP By: /s/ Robert P. Henderson ----------------------------- Robert P. Henderson Co-Managing General Partner By: /s/ Henry F. McCance ----------------------------- Henry F. McCance Co-Managing General Partner /s/ Robert P. Henderson ------------------------------------- Robert P. Henderson /s/ Henry F. McCance ------------------------------------- Henry F. McCance