-----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, GPyElOUvANmGg3vkRgOB2ZbAnywAzdItVP6s9HVDTJOJfeDqRg3EFg26kJBgc7zJ 8zCjhAV7WEBXPALmr0MVPQ== 0000950005-99-000114.txt : 19990211 0000950005-99-000114.hdr.sgml : 19990211 ACCESSION NUMBER: 0000950005-99-000114 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19990210 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: POWER INTEGRATIONS INC CENTRAL INDEX KEY: 0000833640 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 943065014 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-52867 FILM NUMBER: 99528454 BUSINESS ADDRESS: STREET 1: 477 NORTH MATHILDA AVENUE CITY: SUNNYVALE STATE: CA ZIP: 94086 BUSINESS PHONE: 4085239210 MAIL ADDRESS: STREET 1: 477 NORTH MATHILDA AVENUE CITY: SUNNYVALE STATE: CA ZIP: 94086 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: INTERWEST PARTNERS V LP CENTRAL INDEX KEY: 0000908156 STANDARD INDUSTRIAL CLASSIFICATION: [] STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 3000 SAND HILL RD BLDG 3 STREET 2: SUITE 255 CITY: MENLO PARK STATE: CA ZIP: 94025 SC 13G/A 1 SCHEDULE 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment no. 1) Power Integrations, Inc. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock - -------------------------------------------------------------------------------- (Title of Class of Securities) 739276 10 3 - -------------------------------------------------------------------------------- (CUSIP Number) *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 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 2 of 14 Pages ----------- - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS InterWest Partners V, 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 NUMBER OF 0 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 0 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 - ---------- ------------------------------------------------------------------------------------------------------------- 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 2 of 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 3 of 14 Pages ------------ - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS InterWest Management Partners V, L.P. - ---------- ------------------------------------------------------------------------------------------------------------- 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 NUMBER OF 0 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 0 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 - ---------- ------------------------------------------------------------------------------------------------------------- 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 3 of 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 4 of 14 Pages ----------- - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Alan W. Crites - ---------- ------------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ---------- ------------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY - ---------- ------------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - ------------------------------ -------- -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 937 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 937 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 937 - ---------- ------------------------------------------------------------------------------------------------------------- 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* IN - ---------- ------------------------------------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!
Page 4 of 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 5 of 14 Pages ----------- - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Philip T. Gianos - ---------- ------------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ---------- ------------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY - ---------- ------------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - ------------------------------ -------- -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 5,877 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 5,877 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 5,877 - ---------- ------------------------------------------------------------------------------------------------------------- 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* IN - ---------- ------------------------------------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!
Page 5 of 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 6 of 14 Pages ------------ - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Wallace R. Hawley - ---------- ------------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ---------- ------------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY - ---------- ------------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - ------------------------------ -------- -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 0 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 0 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 - ---------- ------------------------------------------------------------------------------------------------------------- 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* IN - ---------- ------------------------------------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!
Page 6 of 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 7 of 14 Pages ----------- - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS W. Scott Hedrick - ---------- ------------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ---------- ------------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY - ---------- ------------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - ------------------------------ -------- -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 1,752 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 1,752 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,752 - ---------- ------------------------------------------------------------------------------------------------------------- 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* IN - ---------- ------------------------------------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!
Page 7 of 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 8 of 14 Pages ----------- - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS W. Stephen Holmes - ---------- ------------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ---------- ------------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY - ---------- ------------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - ------------------------------ -------- -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 0 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 0 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 - ---------- ------------------------------------------------------------------------------------------------------------- 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* IN - ---------- ------------------------------------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!
Page 8 of 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 9 of 14 Pages ----------- - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Robert R. Momsen - ---------- ------------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ---------- ------------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY - ---------- ------------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - ------------------------------ -------- -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 1,546 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 1,546 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,546 - ---------- ------------------------------------------------------------------------------------------------------------- 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* IN - ---------- ------------------------------------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!
Page 9 of 14 pages
- ----------------------------------------------- ----------------------------------- 13G CUSIP NO. 739276 10 3 Page 10 of 14 Pages ----------- - ----------------------------------------------- ----------------------------------- - ---------- ------------------------------------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Arnold L. Oronsky - ---------- ------------------------------------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ---------- ------------------------------------------------------------------------------------------------------------- 3 SEC USE ONLY - ---------- ------------------------------------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - ------------------------------ -------- -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 0 -------- -------------------------------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 0 -------- -------------------------------------------------------------------------------- EACH REPORTING PERSON WITH 7 SOLE DISPOSITIVE POWER 0 -------- -------------------------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 - ---------- ------------------------------------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 - ---------- ------------------------------------------------------------------------------------------------------------- 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* IN - ---------- ------------------------------------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT!
Page 10 of 14 pages Item 1. (a) Name of Issuer: Power Integrations, Inc. ("Issuer") (b) Address of Issuer's Principal Executive Offices: 477 North Mathilda Avenue Sunnyvale, CA 94086 Item 2. (a) Name of Person(s) Filing: InterWest Partners V, L.P. ("IWP V") InterWest Management Partners V, L.P. ("IMP V") Alan W. Crites ("Crites") Philip T. Gianos ("Gianos") Wallace R. Hawley ("Hawley") W. Scott Hedrick ("Hedrick") W. Stephen Holmes ("Holmes") Robert R. Momsen ("Momsen") Arnold L. Oronsky ("Oronsky") (b) Address of Principal Business Office or, if none, Residence: 3000 Sand Hill Road Building 3, Suite 255 Menlo Park, CA 94025 (c) Citizenship/Place of Organization: IWP V: California IMP V: California Crites: United States Gianos: United States Hawley: United States Hedrick: United States Holmes: United States Momsen: United States Oronsky: United States (d) Title of Class of Securities: Common Stock (e) CUSIP Number: 739276 10 3 Item 3. Not applicable. Page 11 of 14 Pages Item 4 Ownership.
- ------- ------------- ---------- ---------- ------------- ------------ ----------- ------------ ---------------- Other Individuals IWP V IMP V Crites Gianos Hedrick Momsen * - ------- ------------- ---------- ---------- ------------- ------------ ----------- ------------ ---------------- (a) Beneficial Ownership 0 0 937 5,877 1,752 1,546 0** - ------- ------------- ---------- ---------- ------------- ------------ ----------- ------------ ---------------- (b) Percentage of Class 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% - ------- ------------- ---------- ---------- ------------- ------------ ----------- ------------ ---------------- (c) Sole Voting Power 0 0 937 5,877 1,752 1,546 0 - ------- ------------- ---------- ---------- ------------- ------------ ----------- ------------ ---------------- Shared Voting Power 0 0 0 0 0 0 0 - ------- ------------- ---------- ---------- ------------- ------------ ----------- ------------ ---------------- Sole Dispositive Power 0 0 937 5,877 1,752 1,546 0 - ------- ------------- ---------- ---------- ------------- ------------ ----------- ------------ ---------------- Shared Dispositive Power 0 0 0 0 0 0 0 - ------- ------------- ---------- ---------- ------------- ------------ ----------- ------------ ---------------- *Individuals included in this column are Hawley, Holmes and Oronsky
Item 5. Ownership of Five Percent or Less of a Class This statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owners of more than five percent of the class of securities. Item 6. Ownership of More than Five Percent on Behalf of Another Person Under certain circumstances set forth in the partnership agreement of IMP V, the general partners and/or limited partners of such partnership have the right to receive dividends from, or the proceeds from the sale of, the Common Stock of Issuer beneficially owned by such Partnership. 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 12 of 14 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 ____, 1999 INTERWEST PARTNERS V, L.P. By: InterWest Management Partners V, L.P. --------------------------- Alan W. Crites By: ---------------------------------- General Partner --------------------------- Philip T. Gianos INTERWEST MANAGEMENT PARTNERS V, L.P. --------------------------- By: Wallace R. Hawley ------------------------------------------ General Partner --------------------------- W. Scott Hedrick --------------------------- W. Stephen Holmes --------------------------- Robert R. Momsen --------------------------- Arnold L. Oronsky Page 13 of 14 Pages EXHIBIT A We, the undersigned, hereby express our agreement that the attached Schedule 13G is filed on behalf of each of us. Date: February ____, 1999 INTERWEST PARTNERS V, L.P. By: InterWest Management Partners V, L.P. --------------------------- Alan W. Crites By: --------------------------------- General Partner --------------------------- Philip T. Gianos INTERWEST MANAGEMENT PARTNERS V, L.P. --------------------------- By: Wallace R. Hawley ---------------------------------------- General Partner --------------------------- W. Scott Hedrick --------------------------- W. Stephen Holmes --------------------------- Robert R. Momsen --------------------------- Arnold L. Oronsky Page 14 of 14 Pages -----END PRIVACY-ENHANCED MESSAGE-----