SC 13G/A 1 0001.txt SCHEDULE 13G/A - TULARIK INC. 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 13d-2(b) (Amendment No. 1) (1) Tularik Inc. (Name of Issuer) Common Stock, par value $.01 per share (Title of Class of Securities) 89916510 (CUSIP Number) December 31, 2000 (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) (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). 13G ---------------------- ----------------------- CUSIP No. 89916510 Page 2 of 32 pages. ---------------------- ----------------------- ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Mayfield Medical Partners, a California Partnership ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. California ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF -0- SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 159,940 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING -0- PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 159,940 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 159,940 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 0.3% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. PN ------------------------------------------------------------------------------ 13G ---------------------- ----------------------- CUSIP No. 89916510 Page 3 of 32 pages. ---------------------- ----------------------- ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Mayfield VI Investment Partners, a California Limited Partnership ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. California ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF -0- SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 1,269,273 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING -0- PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 1,269,273 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 1,269,273 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 2.6% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. PN ------------------------------------------------------------------------------ 13G ---------------------- ----------------------- CUSIP No. 89916510 Page 4 of 32 pages. ---------------------- ----------------------- ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Mayfield VI Management Partners, a California Limited Partnership ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. California ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF -0- SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 1,269,273 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING -0- PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 1,269,273 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 1,269,273 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 2.6% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. PN ------------------------------------------------------------------------------ 13G ---------------------- ----------------------- CUSIP No. 89916510 Page 5 of 32 pages. ---------------------- ----------------------- ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Mayfield Associates Fund, a California Limited Partnership ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. California ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF -0- SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 52,887 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING -0- PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 52,887 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 52,887 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 0.1% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. PN ------------------------------------------------------------------------------ 13G ---------------------- ----------------------- CUSIP No. 89916510 Page 6 of 32 pages. ---------------------- ----------------------- ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS F. Gibson Myers, Jr. ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. U.S. ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF 52,656 SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 1,322,160 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING 52,656 PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 1,322,160 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 1,374,816 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 2.9% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. IN ------------------------------------------------------------------------------ 13G ---------------------- ----------------------- CUSIP No. 89916510 Page 7 of 32 pages. ---------------------- ----------------------- ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Kevin A. Fong ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. U.S. ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF 38,497 SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 1,269,273 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING 38,497 PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 1,269,273 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 1,308,220 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 2.7% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. IN ------------------------------------------------------------------------------ 13G ---------------------- ----------------------- CUSIP No. 89916510 Page 8 of 32 pages. ---------------------- ----------------------- ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS William D. Unger ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. U.S. ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF 76,869 SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 1,322,160 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING 76,869 PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 1,322,160 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 1,398,849 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 11. 2.9% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. IN ------------------------------------------------------------------------------ 13G ---------------------- ----------------------- CUSIP No. 89916510 Page 9 of 32 pages. ---------------------- ----------------------- ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Wendell G. Van Auken, III ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. U.S. ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF 40,649 SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 1,322,160 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING 40,649 PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 1,322,160 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 1,362,809 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 2.8% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. IN ------------------------------------------------------------------------------ 13G ---------------------- ------------------------ CUSIP No. 89916510 Page 10 of 32 pages. ---------------------- ------------------------ ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Michael J. Levinthal ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. U.S. ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF 78,896 SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 1,322,160 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING 78,896 PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 1,322,160 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 1,401,056 ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 2.9% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. IN ------------------------------------------------------------------------------ 13G ---------------------- ------------------------ CUSIP NO. 89916510 Page 11 of 32 pages. ---------------------- ------------------------ ------------------------------------------------------------------------------ NAME OF REPORTING PERSON 1. S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS A. Grant Heidrich, III ------------------------------------------------------------------------------ CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP 2. (a) [_] (b) [X] ------------------------------------------------------------------------------ SEC USE ONLY 3. ------------------------------------------------------------------------------ CITIZENSHIP OR PLACE OF ORGANIZATION 4. U.S. ------------------------------------------------------------------------------ SOLE VOTING POWER 5. NUMBER OF 161,239 (includes options to purchase 37,000 shares) SHARES ----------------------------------------------------------- SHARED VOTING POWER BENEFICIALLY 6. OWNED BY 1,322,160 ----------------------------------------------------------- EACH SOLE DISPOSITIVE POWER 7. REPORTING 161,239 (includes options to purchase 37,000 shares) PERSON ----------------------------------------------------------- SHARED DISPOSITIVE POWER WITH 8. 1,322,160 ------------------------------------------------------------------------------ AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9. 1,483,399 (includes options to purchase 37,000 shares) ------------------------------------------------------------------------------ CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES 10. [_] ------------------------------------------------------------------------------ PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11. 3.1% ------------------------------------------------------------------------------ TYPE OF REPORTING PERSON 12. IN ------------------------------------------------------------------------------ Item 1. (a) Name of Issuer: Tularik Inc. (b) Address of Issuer's Principal Executive Offices: Two Corporate Drive South San Francisco, CA 94080 Item 2. (a) Name of Persons Filing: Mayfield Medical Partners, a California Partnership Mayfield VI Investment Partners, a California Limited Partnership Mayfield VI Management Partners, a California Limited Partnership Mayfield Associates Fund, a California Limited Partnership F. Gibson Myers, Jr. Kevin A. Fong William D. Unger Wendell G. Van Auken, III Michael J. Levinthal A. Grant Heidrich, III (b) Address of Principal Business Office: c/o The Mayfield Fund 2800 Sand Hill Road Menlo Park, CA 94025 (c) Citizenship: The entities listed in Item 2(a) are California Limited Partnerships. The individuals listed in Item 2(a) are U.S. citizens. (d) Title of Class of Securities: Common Stock, par value $.01 per share (e) CUSIP Number: 89916510 Page 12 of 32 pages. Item 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a: Not applicable Item 4. Ownership The information regarding ownership as set forth in Items 5-9 of Pages 2-11 hereto, is hereby incorporated by reference. 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 [X]. 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. Page 13 of 32 pages. SIGNATURES 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 13, 2001 MAYFIELD VI INVESTMENT PARTNERS A California Limited Partnership By: Mayfield VI Management Partners, a California Limited Partnership, Its General Partner By: /s/ James T. Beck -------------------------------------- James T. Beck, Authorized Signatory MAYFIELD VI MANAGEMENT PARTNERS A California Limited Partnership By: /s/ James T. Beck -------------------------------------- James T. Beck, Authorized Signatory MAYFIELD MEDICAL PARTNERS A California Partnership By: Mayfield VI Investment Partners, a California Limited Partnership, Its General Partner By: Mayfield VI Management Partners, a California Limited Partnership, Its General Partner By: /s/ James T. Beck -------------------------------------- James T. Beck, Authorized Signatory MAYFIELD ASSOCIATES FUND A California Limited Partnership By: /s/ James T. Beck -------------------------------------- James T. Beck, Authorized Signatory F. GIBSON MYERS, JR. By: /s/ James T. Beck -------------------------------------- James T. Beck, Attorney In Fact Page 14 of 32 pages. KEVIN A. FONG By: /s/ James T. Beck -------------------------------------- James T. Beck, Attorney In Fact WILLIAM D. UNGER By: /s/ James T. Beck -------------------------------------- James T. Beck, Attorney In Fact WENDELL G. VAN AUKEN, III By: /s/ James T. Beck -------------------------------------- James T. Beck, Attorney In Fact MICHAEL J. LEVINTHAL By: /s/ James T. Beck -------------------------------------- James T. Beck, Attorney In Fact A. GRANT HEIDRICH, III By: /s/ James T. Beck -------------------------------------- James T. Beck, Attorney In Fact Page 15 of 32 pages. EXHIBIT INDEX Exhibit 1 - Joint Filing Agreement Exhibit 2 - Powers of Attorney Page 16 of 32 pages.