-----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, Kif399CDHFxaRP1qAFT47XMB4hahAEsNRWarLgawU5ehJbmP2gPZGvj1ICWvA6so 1Pys9K60dcMReUCgMbH8gw== 0000950005-04-000110.txt : 20040206 0000950005-04-000110.hdr.sgml : 20040206 20040206172138 ACCESSION NUMBER: 0000950005-04-000110 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20040206 GROUP MEMBERS: ARNOLD L. ORONSKY GROUP MEMBERS: CHRISTOPHER B. EHRLICH GROUP MEMBERS: GILBERT H. KLIMAN GROUP MEMBERS: H. RONALD NASH GROUP MEMBERS: HARVEY B. CASH GROUP MEMBERS: INTERWEST INVESTORS Q VIII, LP GROUP MEMBERS: INTERWEST INVESTORS VI, LP GROUP MEMBERS: INTERWEST INVESTORS VIII, LP GROUP MEMBERS: INTERWEST MANAGEMENT PARTNERS VI, LLC GROUP MEMBERS: INTERWEST MANAGEMENT PARTNERS VIII, LLC GROUP MEMBERS: INTERWEST PARTNERS VI, LP GROUP MEMBERS: INTERWEST PARTNERS VIII, LP GROUP MEMBERS: JOHN C. ADLER GROUP MEMBERS: MICHAEL B. SWEENEY GROUP MEMBERS: PHILIP T. GIANOS GROUP MEMBERS: ROBERT R. MOMSEN GROUP MEMBERS: STEPHEN C. BOWSHER GROUP MEMBERS: THOMAS L. ROSCH GROUP MEMBERS: W. SCOTT HEDRICK GROUP MEMBERS: W. STEPHEN HOLMES SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MYOGEN INC CENTRAL INDEX KEY: 0001101052 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 841348020 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: 1934 Act SEC FILE NUMBER: 005-79524 FILM NUMBER: 04575275 BUSINESS ADDRESS: STREET 1: 7575 WEST 103RD AVENUE STE 102 CITY: WESTMINSTER STATE: CO ZIP: 80021 BUSINESS PHONE: 3034106666 MAIL ADDRESS: STREET 1: 7575 WEST 103RD AVENUE STE 102 CITY: WESTMINSTER STATE: CO ZIP: 80021 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: INTERWEST PARTNERS VI L P CENTRAL INDEX KEY: 0001019182 IRS NUMBER: 943247382 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 2710 SAND HILL ROAD STREET 2: SECOND FLOOR CITY: MENLO PARK STATE: CA ZIP: 94025 BUSINESS PHONE: 6508548585 SC 13G 1 p18126_sc13g.txt SCHEDULE 13G -------------------------- OMB APPROVAL -------------------------- OMB Number: 3235-0145 Expires: December 31, 2005 Estimated average burden hours per response......11 -------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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 13d-2 (b) Myogen, Inc. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock - -------------------------------------------------------------------------------- (Title of Class of Securities) 62856E 10 4 - -------------------------------------------------------------------------------- (CUSIP Number) 12-31-2003 - -------------------------------------------------------------------------------- (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). Page 1 of 26 pages CUSIP No. 62856E 10 4 Page 2 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) InterWest Partners VI, LP - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |_| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION California - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 966,074 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 0 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 966,074 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 966,074 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.7% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Page 2 of 26 pages CUSIP No. 62856E 10 4 Page 3 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) InterWest Investors VI, LP - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |_| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION California - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 30,289 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 0 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 30,289 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 30,289 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.1% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Page 3 of 26 pages CUSIP No. 62856E 10 4 Page 4 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) InterWest Management Partners VI, LLC (the general partner of InterWest Partners VI, LP and InterWest Investors VI, LP) - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |_| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION California - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 996,363 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 0 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 996,363 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 996,363 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.8% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Page 4 of 26 pages CUSIP No. 62856E 10 4 Page 5 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) InterWest Partners VIII, LP - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |_| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION California - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 1,618,106 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 0 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 1,618,106 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,618,106 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.1% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Page 5 of 26 pages CUSIP No. 62856E 10 4 Page 6 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) InterWest Investors VIII, LP - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |_| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION California - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 12,915 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 0 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 12,915 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,915 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.0% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Page 6 of 26 pages CUSIP No. 62856E 10 4 Page 7 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) InterWest Investors Q VIII, LP - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |_| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION California - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 46,293 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 0 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 46,293 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 46,293 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.2% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Page 7 of 26 pages CUSIP No. 62856E 10 4 Page 8 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) InterWest Management Partners VIII, LLC (the general partner of InterWest Partners VIII, LP, InterWest Investors VIII, LP and InterWest Investors Q VIII, LP) - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |_| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION California - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 1,677,314 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 0 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 1,677,314 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,677,314 - -------------------------------------------------------------------------------- 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% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Page 8 of 26 pages CUSIP No. 62856E 10 4 Page 9 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) John C. Adler (a Venture Member of InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 1,677,314 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,677,314 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,677,314 - -------------------------------------------------------------------------------- 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% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by John C. Adler that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 9 of 26 pages CUSIP No. 62856E 10 4 Page 10 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Stephen C. Bowsher (a Managing Director of InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 1,677,314 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,677,314 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,677,314 - -------------------------------------------------------------------------------- 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% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Stephen C. Bowsher that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 10 of 26 pages CUSIP No. 62856E 10 4 Page 11 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Harvey B. Cash (a Managing Director of InterWest Management Partners VI, LLC and InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 2,673,677 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,673,677 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,673,677 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 10.1% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Harvey B. Cash that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 11 of 26 pages CUSIP No. 62856E 10 4 Page 12 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Christopher B. Ehrlich (a Venture Member of InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 1,677,314 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,677,314 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,677,314 - -------------------------------------------------------------------------------- 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% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Christopher B. Ehrlich that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 12 of 26 pages CUSIP No. 62856E 10 4 Page 13 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Philip T. Gianos (a Managing Director of InterWest Management Partners VI, LLC and InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 2,673,677 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,673,677 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,673,677 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 10.1% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Philip T. Gianos that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 13 of 26 pages CUSIP No. 62856E 10 4 Page 14 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) W. Scott Hedrick (a Managing Director of InterWest Management Partners VI, LLC and InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 2,673,677 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,673,677 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,673,677 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 10.1% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by W. Scott Hedrick that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 14 of 26 pages CUSIP No. 62856E 10 4 Page 15 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) W. Stephen Holmes (a Managing Director of InterWest Management Partners VI, LLC and InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 2,673,677 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,673,677 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,673,677 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 10.1% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by W. Stephen Holmes that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 15 of 26 pages CUSIP No. 62856E 10 4 Page 16 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Gilbert H. Kliman (a Venture Member of InterWest Management Partners VI, LLC and a Managing Director of InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 2,673,677 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,673,677 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,673,677 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 10.1% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Gilbert H. Kliman that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 16 of 26 pages CUSIP No. 62856E 10 4 Page 17 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Robert R. Momsen (a Managing Director of InterWest Management Partners VI, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 996,363 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 996,363 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 996,363 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.8% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Robert R. Momsen that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 17 of 26 pages CUSIP No. 62856E 10 4 Page 18 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) H. Ronald Nash (a Venture Member of InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 1,677,314 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,677,314 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,677,314 - -------------------------------------------------------------------------------- 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% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by H. Ronald Nash that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 18 of 26 pages CUSIP No. 62856E 10 4 Page 19 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Arnold L. Oronsky (a Managing Director of InterWest Management Partners VI, LLC and InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 2,673,677 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,673,677 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,673,677 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 10.1% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Arnold L. Oronsky that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 19 of 26 pages CUSIP No. 62856E 10 4 Page 20 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Thomas L. Rosch (a Managing Director of InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 1,677,314 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,677,314 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,677,314 - -------------------------------------------------------------------------------- 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% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Thomas L. Rosch that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 20 of 26 pages CUSIP No. 62856E 10 4 Page 21 of 26 Pages - -------------------------------------------------------------------------------- 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Michael B. Sweeney (a Managing Director of InterWest Management Partners VIII, LLC) - -------------------------------------------------------------------------------- 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 0 -------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 1,677,314 OWNED BY -------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,677,314 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,677,314 - -------------------------------------------------------------------------------- 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% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! Neither the filing of this statement on Schedule 13G nor any of its contents shall be deemed to constitute an admission by Michael B. Sweeney that he is the beneficial owner of any of the Common Stock referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of his pecuniary interest. Page 21 of 26 pages Item 1. (a) Name of Issuer: Myogen, Inc. ("Issuer") (b) Address of Issuer's Principal Executive Offices: 7575 West 103rd Avenue, Suite 102 Westminster, CO 80021 Item 2. (a) Name of Person(s) Filing: InterWest Partners VI, LP ("IWP VI") InterWest Investors VI, LP ("II VI") InterWest Management Partners VI, LLC ("IMP VI") InterWest Partners VIII, LP ("IWP VIII") InterWest Investors VIII, LP ("II VIII") InterWest Investors Q VIII, LP ("II QVIII") InterWest Management Partners VIII, LLC ("IMP VIII") John C. Adler ("Adler") Stephen C. Bowsher ("Bowsher") Harvey B. Cash ("Cash") Christopher B. Ehrlich ("Ehrlich") Philip T. Gianos ("Gianos") W. Scott Hedrick ("Hedrick") W. Stephen Holmes ("Holmes") Gilbert H. Kliman ("Kliman") Robert R. Momsen ("Momsen") H. Ronald Nash ("Nash") Arnold L. Oronsky ("Oronsky") Thomas L. Rosch ("Rosch") Michael B. Sweeney ("Sweeney") (b) Address of Principal Business Office or, if none, Residence: 2710 Sand Hill Road Second Floor Menlo Park, CA 94025 Page 22 of 26 pages (c) Citizenship/Place of Organization: IWP VI: California II VI: California IMP VI: California IWP VIII: California II VIII: California II QVIII: California IMP VIII: California Adler: United States Bowsher: United States Cash: United States Ehrlich: United States Gianos: United States Hedrick: United States Holmes: United States Kliman: United States Momsen: United States Nash: United States Oronsky: United States Rosch: United States Sweeney: United States (d) Title of Class of Securities: Common Stock (e) CUSIP Number: 62856E 10 4 Item 3. Not applicable. Item 4. Ownership.
======== ============ ========= ========= ========= =========== ========= ========= ========== IWP VI II VI IMP VI IWP VIII II VIII II QVIII IMP VIII - -------- ------------ --------- --------- --------- ----------- --------- --------- ---------- (a) Beneficial Ownership 966,074 30,289 996,363 1,618,106 12,915 46,293 1,677,314 - -------- ------------ --------- --------- --------- ----------- --------- --------- ---------- (b) Percentage of Class 3.7% 0.1% 3.8% 6.1% 0.0% 0.2% 6.3% - -------- ------------ --------- --------- --------- ----------- --------- --------- ---------- (c) Sole Voting Power 966,074 30,289 996,363 1,618,106 12,915 46,293 1,677,314 - -------- ------------ --------- --------- --------- ----------- --------- --------- ---------- Shared Voting Power 0 0 0 0 0 0 0 - -------- ------------ --------- --------- --------- ----------- --------- --------- ---------- Sole Dispositive Power 966,074 30,289 996,363 1,618,106 12,915 46,293 1,677,314 - -------- ------------ --------- --------- --------- ----------- --------- --------- ---------- Shared Dispositive Power 0 0 0 0 0 0 0 ======== ============ ========= ========= ========= =========== ========= ========= ==========
Page 23 of 26 pages ======== ============ ============= ============ ============= Adler Cash Bowsher Gianos Ehrlich Hedrick Nash Holmes Rosch Kliman Sweeney Oronsky Momsen * ** - -------- ------------ ------------- ------------ ------------- (a) Beneficial Ownership 1,677,314 2,673,677 996,363 - -------- ------------ ------------- ------------ ------------- (b) Percentage of Class 6.3% 10.1% 3.8% - -------- ------------ ------------- ------------ ------------- (c) Sole Voting Power 0 0 0 - -------- ------------ ------------- ------------ ------------- Shared Voting Power 1,677,314 2,673,677 996,363 - -------- ------------ ------------- ------------ ------------- Sole Dispositive Power 0 0 0 - -------- ------------ ------------- ------------ ------------- Shared Dispositive Power 1,677,314 2,673,677 996,363 ======== ============ ============= ============ ============= *Bowher, Rosch and Sweeney are Managing Directors, and Adler, Ehrlich and Nash are Venture Members of IMP VIII. **Cash, Gianos, Hedrick, Holmes and Oronsky are Managing Directors of IMP VIII and IMP VI. Kliman is a Managing Director of IMP VIII and a Venture Member of IMP VI. 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 Under certain circumstances set forth in the limited liability operating agreements of IMP VI and IMP VIII, the members of such limited liability companies have the right to receive dividends from, or the proceeds from the sale of, the Common Stock of Issuer beneficially owned by such limited liability companies. 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 No reporting person is a member of a group as defined in section 240.13d-1(b)(1)(iii)(H) of the Act. Item 9. Notice of Dissolution of Group Not applicable. Item 10. Certification Not applicable EXHIBITS A. Joint Filing Statement Page 24 of 26 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. Date: February ____, 2004 INTERWEST PARTNERS VI, LP By: /s/ John C. Adler ------------------------------------- Name: John C. Adler By: InterWest Management Partners VI, LLC By: /s/ Stephen C. Bowsher ------------------------------------- By: /s/ W. Stephen Holmes Name: Stephen C. Bowsher ------------------------------------------ Managing Director By: /s/ Harvey B. Cash ------------------------------------- INTERWEST INVESTORS VI, LP Name: Harvey B. Cash By: InterWest Management Partners VI, LLC By: /s/ Christopher B. Ehrlich ------------------------------------- Name: Christopher B. Ehrlich By: /s/ W. Stephen Holmes ------------------------------------------ Managing Director By: /s/ Philip T. Gianos ------------------------------------- Name: Philip T. Gianos INTERWEST MANAGEMENT PARTNERS VI, LLC By: /s/ W. Scott Hedrick ------------------------------------- By: /s/ W. Stephen Holmes Name: W. Scott Hedrick ---------------------------------------------- Managing Director By: /s/ W. Stephen Holmes ------------------------------------- INTERWEST PARTNERS VIII, LP Name: W. Stephen Holmes By: InterWest Management Partners VIII, LLC By: /s/ Gilbert H. Kliman ------------------------------------- Name: Gilbert H. Kliman By: /s/ W. Stephen Holmes ------------------------------------------ Managing Director By: /s/ Robert R. Momsen ------------------------------------ Name: Robert R. Momsen INTERWEST INVESTORS VIII, LP By: /s/ H. Ronald Nash ------------------------------------- By: InterWest Management Partners VIII, LLC Name: H. Ronald Nash By: /s/ W. Stephen Holmes By: /s/ Arnold L. Oronsky ------------------------------------------ ------------------------------------- Managing Director Name: Arnold L. Oronsky INTERWEST INVESTORS Q VIII, LP By: /s/ Thomas L. Rosch ------------------------------------- Name: Thomas L. Rosch By: InterWest Management Partners VIII, LLC By: /s/ Michael B. Sweeney ------------------------------------- By: /s/ W. Stephen Holmes Name: Michael B. Sweeney ------------------------------------------ Managing Director INTERWEST MANAGEMENT PARTNERS VIII, LLC By: /s/ W. Stephen Holmes ---------------------------------------------- Managing Director
Page 25 of 26 pages EXHIBIT A JOINT FILING STATEMENT We, the undersigned, hereby express our agreement that the attached Schedule 13G is filed on behalf of each of us. Date: February ____, 2004 INTERWEST PARTNERS VI, LP By: /s/ John C. Adler ------------------------------------- Name: John C. Adler By: InterWest Management Partners VI, LLC By: /s/ Stephen C. Bowsher ------------------------------------- By: /s/ W. Stephen Holmes Name: Stephen C. Bowsher ------------------------------------------ Managing Director By: /s/ Harvey B. Cash ------------------------------------- INTERWEST INVESTORS VI, LP Name: Harvey B. Cash By: InterWest Management Partners VI, LLC By: /s/ Christopher B. Ehrlich ------------------------------------- Name: Christopher B. Ehrlich By: /s/ W. Stephen Holmes ------------------------------------------ Managing Director By: /s/ Philip T. Gianos ------------------------------------- Name: Philip T. Gianos INTERWEST MANAGEMENT PARTNERS VI, LLC By: /s/ W. Scott Hedrick ------------------------------------- By: /s/ W. Stephen Holmes Name: W. Scott Hedrick ---------------------------------------------- Managing Director By: /s/ W. Stephen Holmes ------------------------------------- INTERWEST PARTNERS VIII, LP Name: W. Stephen Holmes By: InterWest Management Partners VIII, LLC By: /s/ Gilbert H. Kliman ------------------------------------- Name: Gilbert H. Kliman By: /s/ W. Stephen Holmes ------------------------------------------ Managing Director By: /s/ Robert R. Momsen ------------------------------------ Name: Robert R. Momsen INTERWEST INVESTORS VIII, LP By: /s/ H. Ronald Nash ------------------------------------- By: InterWest Management Partners VIII, LLC Name: H. Ronald Nash By: /s/ W. Stephen Holmes By: /s/ Arnold L. Oronsky ------------------------------------------ ------------------------------------- Managing Director Name: Arnold L. Oronsky INTERWEST INVESTORS Q VIII, LP By: /s/ Thomas L. Rosch ------------------------------------- Name: Thomas L. Rosch By: InterWest Management Partners VIII, LLC By: /s/ Michael B. Sweeney ------------------------------------- By: /s/ W. Stephen Holmes Name: Michael B. Sweeney ------------------------------------------ Managing Director INTERWEST MANAGEMENT PARTNERS VIII, LLC By: /s/ W. Stephen Holmes ---------------------------------------------- Managing Director
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