SC 13G/A 1 dsc13ga.txt SCHEDULE 13G/A 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)* Oratec Interventions, Inc. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 68554M108 -------------------------------------------------------------------------------- (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. 68554M108 13G Page 2 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Venrock Associates I.R.S. #13-6300995 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION New York, U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 0 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 686,409 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 686,409 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 686,409 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 3.0% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 3 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Venrock Associates II, L.P. I.R.S. #13-3844754 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION New York, U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 0 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 621,348 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 621,348 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 621,348 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 2.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 4 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Michael C. Brooks ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION New York, U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 1,244 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 1,244 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,309,001 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 5 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Joseph E. Casey ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 436 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 436 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,308,193 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 6 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Eric S. Copeland ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 436 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 436 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,308,193 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 7 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Anthony B. Evnin ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 21,625 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 21,625 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,329,382 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.8% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 8 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Thomas R. Frederick ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 0 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,308,678 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,308,678 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,308,678 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 9 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON David R. Hathaway ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 21,321 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 21,321 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,329,078 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.8% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 10 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Patrick F. Latterell ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 20,726 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 20,726 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,328,483 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.8% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 11 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Bryan E. Roberts ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 0 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,307,757 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 12 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Ray A. Rothrock ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 19,025 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 19,025 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,326,782 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 13 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Kimberley A. Rummelsburg ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 0 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,310,847 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,310,847 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,310,847 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 14 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Anthony Sun ###-##-#### -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 21,533 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 21,533 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,329,290 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.8% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 15 of 22 Pages --------- ------------------------ -------------------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Michael F. Tyrrell 019-52-28-58 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 3,486 BENEFICIALLY OWNED BY --------------------------------------------------- EACH 6 SHARED VOTING POWER REPORTING 1,307,757 PERSON WITH --------------------------------------------------- 7 SOLE DISPOSITIVE POWER 3,486 --------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,307,757 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,311,243 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 5.7% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 16 of 22 Pages --------- ------------------------ -------------------------- Introductory Note: This Statement on Schedule 13G is filed on behalf of Venrock Associates, a limited partnership organized under the laws of the State of New York, Venrock Associates II, L.P., a limited partnership organized under the laws of the State of New York, Michael C. Brooks, Joseph E. Casey, Eric S. Copeland, Anthony B. Evnin, Thomas R. Frederick, David R. Hathaway, Patrick F. Latterell, Bryan E. Roberts, Ray A. Rothrock, Kimberley A. Rummelsburg, Anthony Sun and Michael F. Tyrrell in respect of shares of Common Stock of Oratec Interventions, Inc. Item 1(a) Name of Issuer -------------------------------- Oratec Interventions, Inc. Item 1(b) Address of Issuer's Principal Executive Offices ----------------------------------------------------------------- 3700 Haven Court Menlo Park, CA 94025 Item 2(a) Name of Person Filing --------------------------------------- Venrock Associates ("Venrock") Venrock Associates II, L.P. ("Venrock II") Michael C. Brooks Joseph E. Casey Eric S. Copeland Anthony B. Evnin Thomas R. Frederick David R. Hathaway Patrick F. Latterell Bryan E. Roberts Ray A. Rothrock Kimberley A. Rummelsburg Anthony Sun Michael F. Tyrrell Item 2(b) Address of Principal Business Office or, if none, Residence ----------------------------------------------------------------------------- New York Office: Menlo Park Office: 30 Rockefeller Plaza 2494 Sand Hill Road Room 5508 Suite 200 New York, NY 10112 Menlo Park, CA 94025 Item 2(c) Citizenship ----------------------------- Venrock and Venrock II are limited partnerships organized in the State of New York. Michael C. Brooks, Joseph E. Casey, Eric S. Copeland, Anthony B. Evnin, Thomas R. Frederick, David R. Hathaway, Patrick F. Latterell, Bryan E. Roberts, Ray A. Rothrock, Kimberley A. Rummelsburg, Anthony Sun and Michael F. Tyrrell are General Partners of Venrock and Venrock II and are all citizens of the United States of America. Item 2(d) Title of Class of Securities ---------------------------------------------- Common Stock Item 2(e) CUSIP Number ------------------------------ 68554M108 ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 17 of 22 Pages --------- ------------------------ -------------------------- Item 3 Not applicable. ------ Item 4 Ownership --------------------------- (a) and (b) Venrock owns 686,409 shares or 3.0% of the outstanding shares of common stock. Venrock II owns 621,348 shares or 2.7% of the outstanding shares of common stock. Michael C. Brooks beneficially owns 1,309,001 shares or 5.7% of the outstanding shares of common stock. Joseph E. Casey beneficially owns 1,308,193 shares or 5.7% of the outstanding shares of common stock. Eric S. Copeland beneficially owns 1,308,193 shares or 5.7% of the outstanding shares of common stock. Anthony B. Evnin beneficially owns 1,329,382 shares or 5.8% of the outstanding shares of common stock. Thomas R. Frederick beneficially owns 1,308,678 shares or 5.7% of the outstanding shares of common stock. David R. Hathaway beneficially owns 1,329,078 shares or 5.8% of the outstanding shares of common stock. Patrick F. Latterell beneficially owns 1,328,483 shares or 5.8% of the outstanding shares of common stock. Bryan E. Roberts beneficially owns 1,307,757 shares or 5.7% of the outstanding shares of common stock. Ray A. Rothrock beneficially owns 1,326,782 shares or 5.7% of the outstanding shares of common stock. Kimberly A. Rummelsberg beneficially owns 1,310,847 shares or 5.7% of the outstanding shares of common stock. Anthony Sun beneficially owns 1,329,290 shares or 5.8% of the outstanding shares of common stock. Michael F. Tyrrell beneficially owns 1,311,243 shares or 5.7% of the outstanding shares of common stock. (c) Venrock has sole voting and dispositive power over no shares of common stock and shared voting and dispositive power over 686,409 shares of common stock. Venrock II has sole voting and dispositive power over no shares of common stock and shared voting and dispositive power over 621,348 shares of common stock. Michael C. Brooks has sole voting and dispositive power over 1,244 shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Joseph E. Casey has sole voting and dispositive power over 436 shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Eric S. Copeland has sole voting and dispositive power over 436 shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Anthony B. Evnin has sole voting and dispositive power over 21,625 shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Thomas R. Frederick has sole voting and dispositive power over no shares of common stock and shared voting and dispositive power over 1,308,678 shares of common stock. David R. Hathaway has sole voting and dispositive power over 21,321 shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Patrick F. Latterell has sole voting and dispositive power over 20,726 shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Bryan E. Roberts has sole voting and dispositive power over no shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Ray A. Rothrock has sole voting and dispositive power over 19,025 shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Kimberly A. Rummelsberg has sole voting and dispositive power over no shares of common stock and shared voting and dispositive power over 1,310,847 shares of common stock. Anthony Sun has sole voting and dispositive power over 21,533 shares of common stock and shared voting and dispositive power over 1,307,757 shares of common stock. Michael F. Tyrrell has sole voting and dispositive power over 3,486 shares of common stock and shared voting and dispositive power over 1,307,757 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 [ ]. ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 18 of 22 Pages --------- ------------------------ -------------------------- Item 6 Ownership of More than Five Percent of Behalf of Another -------------------------------------------------------------------------- Person ------ No person, other than the General Partners of Venrock and Venrock II has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares of common stock owned by Venrock and Venrock II. 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 --------------------------------------------------------------------------- This schedule is being filed pursuant to Rule 13d-1(d). The identities of the twelve General Partners of Venrock and Venrock II are stated in Item 2. Item 9 Notice of Dissolution of Group ------------------------------------------------ Not applicable. Item 10 Certification ------------------------------- Not applicable. ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 19 of 22 Pages --------- ------------------------ -------------------------- 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 14, 2002 VENROCK ASSOCIATES By: /s/ Anthony B. Evnin ----------------------------- Anthony B. Evnin General Partner February 14, 2002 VENROCK ASSOCIATES II, L.P. By: /s/ Anthony B. Evnin ----------------------------- Anthony B. Evnin General Partner February 14, 2002 GENERAL PARTNERS * ------------------------------------ Michael C. Brooks * ------------------------------------ Joseph E. Casey * ------------------------------------ Eric S. Copeland * ------------------------------------ Anthony B. Evnin * ------------------------------------ Thomas R. Frederick * ------------------------------------ David R. Hathaway * ------------------------------------ Patrick F. Latterell /s/ Bryan E. Roberts ------------------------------------ Bryan E. Roberts * ------------------------------------ Ray A. Rothrock * ------------------------------------ Kimberley A. Rummelsburg * ------------------------------------ Anthony Sun * ------------------------------------ Michael F. Tyrrell * By: /s/ Anthony B. Evnin ----------------------------- Anthony B. Evnin Attorney-in-Fact ------------------------ -------------------------- CUSIP No. 68554M108 13G Page 20 of 22 Pages --------- ------------------------ -------------------------- Exhibit Index
Exhibit No. Page No. ----------- -------- 24.1 Power of Attorney dated as of February 14, 2001 granted by 21 certain of the General Partners in favor of Anthony B. Evnin and Anthony Sun 99.1 Agreement pursuant to 13d-1(k)(1) among Venrock Associates 22 and Venrock Associates II, L.P. and the General Partners thereof