-----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, JCV6GIqMTmSJgNdLrRcOhE40cCLu2YFINoBnyg7+m+MjQmHF1h/IP+IuioNDY57G SnUYtGKk/nscy6lIIZiZjQ== 0000950005-00-000236.txt : 20000215 0000950005-00-000236.hdr.sgml : 20000215 ACCESSION NUMBER: 0000950005-00-000236 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20000214 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ARTISAN COMPONENTS INC CENTRAL INDEX KEY: 0001048982 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 770278185 STATE OF INCORPORATION: DE FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-53517 FILM NUMBER: 537606 BUSINESS ADDRESS: STREET 1: 1195 BORDEAUX DRIVE CITY: SUNNYVALE STATE: CA ZIP: 94089 BUSINESS PHONE: 4087345600 MAIL ADDRESS: STREET 1: 1195 BORDEAUX DRIVE CITY: SUNNYVALE STATE: CA ZIP: 94089 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: U S VENTURE PARTNERS IV L P CENTRAL INDEX KEY: 0001030241 STANDARD INDUSTRIAL CLASSIFICATION: [] FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 2180 SAND HILL ROAD SUITE 300 CITY: MENLO PARK STATE: CA ZIP: 94025 BUSINESS PHONE: 4158549080 MAIL ADDRESS: STREET 1: 2180 SAND HILL ROAD STREET 2: SUITE 300 CITY: MENLO PARK STATE: CA ZIP: 94025 SC 13G/A 1 FORM SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) (Amendment No. 1)* Artisan Components, Inc. ------------------------ (Name of Issuer) Common Stock ------------------------------ (Title of Class of Securities) 042923102 -------------- (CUSIP Number) December 31, 1999 ------------------------------------------------------- (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). (Continued on following pages) Page 1 of 13 Pages CUSIP NO. 042923102 PAGE 2 OF 13 PAGES - ------------------- ------------------ 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS U.S. Venture Partners IV, L.P. ("USVP IV") Tax ID Number: 94-3193188 ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 798,972 shares, except that Presidio Management Group IV, L.P. ("PMG IV"), the general partner of USVP IV, may be deemed to have sole voting power with respect to such shares, and Bowes, Federman, Krausz and Young, the general partners of PMG IV may be deemed to have shared voting power with respect to such shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY See Response to row 5. EACH ------------------------------------------------------------ REPORTING 7 SOLE DISPOSITIVE POWER PERSON WITH 798,972 shares, except that Presidio Management Group IV, L.P. ("PMG IV"), the general partner of USVP IV, may be deemed to have sole dipositive power with respect to such shares, and Bowes, Federman, Krausz and Young, the general partners of PMG IV may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER See Response to row 7. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 798,972 ---------------------------------------------------------------------------- 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* PN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! CUSIP NO. 042923102 PAGE 3 OF 13 PAGES - ------------------- ------------------ 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Second Ventures II, L.P. ("SV II") Tax ID Number: 94-3200353 ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 97,650 shares, except that Presidio Management Group IV, L.P. ("PMG IV"), the general partner of SV II, may be deemed to have sole voting power with respect to such shares, and Bowes, Federman, Krausz and Young, the general partners of PMG IV may be deemed to have shared voting power with respect to such shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY See Response to row 5. EACH ------------------------------------------------------------ REPORTING 7 SOLE DISPOSITIVE POWER PERSON WITH 97,650 shares, except that Presidio Management Group IV, L.P. ("PMG IV"), the general partner of SV II, may be deemed to have sole dipositive power with respect to such shares, and Bowes, Federman, Krausz and Young, the general partners of PMG IV may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER See Response to row 7. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 97,650 ---------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ----------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.7% ----------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! CUSIP NO. 042923102 PAGE 4 OF 13 PAGES - ------------------- ------------------ 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS USVP Entrepreneur Partners II, L.P. ("UEP II") Tax ID Number: 94-3203198 ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 43,328 shares, except that Presidio Management Group IV, L.P. ("PMG IV"), the general partner of UEP II, may be deemed to have sole voting power with respect to such shares, and Bowes, Federman, Krausz and Young, the general partners of PMG IV may be deemed to have shared voting power with respect to such shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY See Response to row 5. EACH ------------------------------------------------------------ REPORTING 7 SOLE DISPOSITIVE POWER PERSON WITH 43,328 shares, except that Presidio Management Group IV, L.P. ("PMG IV"), the general partner of UEP II, may be deemed to have sole dipositive power with respect to such shares, and Bowes, Federman, Krausz and Young, the general partners of PMG IV may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER See Response to row 7. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 43,328 ---------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ----------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.3% ----------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! CUSIP NO. 042923102 PAGE 5 OF 13 PAGES - ------------------- ------------------ 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Presidio management Group IV, L.P. ("PMG IV") Tax ID Number: 94-3193187 ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 939,950 shares, of which 798,972 are shares directly owned by USVP IV, 97,650 are shares directly owned by SV II and43,328 are shares directly owned by UEP II. PMG IV is the general partner of USVP IV, SV II and UEP II, and may be deemed to have sole voting power with respect to such shares, and Bowes, Federman, Krausz and Young, the general partners of PMG IV may be deemed to have shared voting power with respect to such shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY See Response to row 5. EACH ------------------------------------------------------------ REPORTING 7 SOLE DISPOSITIVE POWER PERSON WITH 939,950 shares, of which 798,972 are shares directly owned by USVP IV, 97,650 are shares directly owned by SV II and 43,328 are shares directly owned by UEP II. PMG IV is the general partner of USVP IV, SV II and UEP II, and may be deemed to have sole dispositive power with respect to such shares, and Bowes, Federman, Krausz and Young, the general partners of PMG IV may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER See Response to row 7. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 939,950 ---------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ----------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.7% ----------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! CUSIP NO. 042923102 PAGE 6 OF 13 PAGES - ------------------- ------------------ 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS William K. Bowes, Jr. ("Bowes") Tax ID Number: ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S. Citizen ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 30,302 shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 939,950 shares, of which 798,972 are shares directly owned EACH by USVP IV, 97,650 are shares directly owned by SV II and REPORTING 43,328 are shares directly owned by UEP II. Bowes is a PERSON general partner of PMG IV, the general partner of USVP IV, WITH SV II and UEP II, and may be deemed to have shared voting power with respect to such shares. ------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 30,302 shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 939,950 shares, of which 798,972 are shares directly owned by USVP IV, 97,650 are shares directly owned by SV II and 43,328 are shares directly owned by UEP II. Bowes is a general partner of PMG IV, the general partner of USVP IV, SV II and UEP II, and may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 970,252 ---------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ----------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 7.0% ----------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! CUSIP NO. 042923102 PAGE 7 OF 13 PAGES - ------------------- ------------------ 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Irwin Federman ("Federman") Tax ID Number: ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S. Citizen ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 0 shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 939,950 shares, of which 798,972 are shares directly owned EACH by USVP IV, 97,650 are shares directly owned by SV II and REPORTING 43,328 are shares directly owned by UEP II. Federman is a PERSON general partner of PMG IV, the general partner of USVP IV, WITH SV II and UEP II, and may be deemed to have shared voting power with respect to such shares. ------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 939,950 shares, of which 798,972 are shares directly owned by USVP IV, 97,650 are shares directly owned by SV II and 43,328 are shares directly owned by UEP II. Federman is a general partner of PMG IV, the general partner of USVP IV, SV II and UEP II, and may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 939,950 ---------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ----------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.7% ----------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! CUSIP NO. 042923102 PAGE 8 OF 13 PAGES - ------------------- ------------------ 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Steven M. Krausz ("Krausz") Tax ID Number: ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S. Citizen ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 0 shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 939,950 shares, of which 798,972 are shares directly owned EACH by USVP IV, 97,650 are shares directly owned by SV II and REPORTING 43,328 are shares directly owned by UEP II. Krausz is a PERSON general partner of PMG IV, the general partner of USVP IV, WITH SV II and UEP II, and may be deemed to have shared voting power with respect to such shares. ------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 0 shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 939,950 shares, of which 798,972 are shares directly owned by USVP IV, 97,650 are shares directly owned by SV II and 43,328 are shares directly owned by UEP II. Krausz is a general partner of PMG IV, the general partner of USVP IV, SV II and UEP II, and may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 939,950 ---------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ----------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.7% ----------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! CUSIP NO. 042923102 PAGE 9 OF 13 PAGES - ------------------- ------------------ 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Lucio Lanza ("Lanza") Tax ID Number: ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S. Citizen ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 27,330 shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 939,950 shares, of which 798,972 are shares directly owned EACH by USVP IV, 97,650 are shares directly owned by SV II and REPORTING 43,328 are shares directly owned by UEP II. Lanza is an PERSON affiliate of PMG IV, the general partner of USVP IV, SV II WITH and UEP II, and may be deemed to have shared voting power with respect to such shares. ------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 27,330 shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 939,950 shares, of which 798,972 are shares directly owned by USVP IV, 97,650 are shares directly owned by SV II and 43,328 are shares directly owned by UEP II. Lanza is an affiliate of PMG IV, the general partner of USVP IV, SV II and UEP II, and may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 967,280 ---------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ----------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.9% ----------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! Page 10 of 13 Pages 1 NAMES OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS Philip M. Young ("Young") Tax ID Number: ----------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [X] ----------------------------------------------------------------------------- 3 SEC USE ONLY ----------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S. Citizen ----------------------------------------------------------------------------- 5 SOLE VOTING POWER 9,082 shares. NUMBER OF ------------------------------------------------------------ SHARES 6 SHARED VOTING POWER BENEFICIALLY OWNED BY 939,950 shares, of which 798,972 are shares directly owned EACH by USVP IV, 97,650 are shares directly owned by SV II and REPORTING 43,328 are shares directly owned by UEP II. Young is a PERSON general partner of PMG IV, the general partner of USVP IV, WITH SV II and UEP II, and may be deemed to have shared voting power with respect to such shares. ------------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 9,082 shares. ------------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 939,950 shares, of which 798,972 are shares directly owned by USVP IV, 97,650 are shares directly owned by SV II and 43,328 are shares directly owned by UEP II. Young is a general partner of PMG IV, the general partner of USVP IV, SV II and UEP II, and may be deemed to have shared dispositive power with respect to such shares. ------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 949,032 ---------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ----------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.8% ----------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ----------------------------------------------------------------------------- *See Instructions Before Filling Out! Page 11 of 13 Pages This statement amends and restates the Statement on 13G filed by U.S. Venture Partners IV, L.P. ("USVP IV"), Second Ventures II, L.P. ("SV II"), USVP Entrepreneur Partners II, L.P. ("UEP II"), Presidio Management Group IV, L.P. ("PMG IV"), William K. Bowes, Jr. ("Bowes"), Irwin Federman ("Federman"), Steven M. Krausz ("Krausz"), Lucio Lanza ("Lanza"), and Philip M. Young ("Young"). The foregoing entities and individuals are collectively referred to as the "Reporting Persons". ITEM 4. OWNERSHIP: The following information with respect to the ownership of the Common Stock of the issuer by the persons filing this Statement is provided as of December 31, 1999: (a) Amount beneficially owned: See Row 9 of cover page for each Reporting Person. (b) Percent of Class: See Row 11 of cover page for each Reporting Person. (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote: See Row 5 of cover page for each Reporting Person. (ii) Shared power to vote or to direct the vote: See Row 6 of cover page for each Reporting Person. (iii) Sole power to dispose or to direct the disposition of: See Row 7 of cover page for each Reporting Person. (iv) Shared power to dispose or to direct the disposition of: See Row 8 of cover page for each Reporting Person. Page 12 of 13 Pages SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: January 31, 2000 U.S. Venture Partners IV, L.P. ---------------------------------------- By Presidio Management Group IV, L.P. Signature Its General Partner Michael P. Maher Chief Financial Officer/Attorney-In-Fact Second Ventures II, L.P. ---------------------------------------- By Presidio Management Group IV, L.P. Signature Its General Partner Michael P. Maher Chief Financial Officer/Attorney-In-Fact USVP Entrepreneur Partners II, L.P. ---------------------------------------- By Presidio Management Group IV, L.P. Signature Its General Partner Michael P. Maher Chief Financial Officer/Attorney-In-Fact Presidio Management Group IV, L.P. ---------------------------------------- A Delaware Limited Partnership Signature Michael P. Maher Chief Financial Officer/Attorney-In-Fact William K. Bowes, Jr. ---------------------------------------- Michael P. Maher Attorney-In-Fact Irwin Federman ---------------------------------------- Michael P. Maher Attorney-In-Fact Page 13 of 13 Pages Steven M. Krausz ---------------------------------------- Michael P. Maher Attorney-In-Fact Lucio Lanza ---------------------------------------- Michael P. Maher Attorney-In-Fact Philip M. Young ---------------------------------------- Michael P. Maher Attorney-In-Fact -----END PRIVACY-ENHANCED MESSAGE-----