-----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, EBrXJWJ7G9zPaV99Vuz1cKu7QCBojbKCpdz8qEysw4MvCZaG7DKj4VM8M3d3F0E/ VumujQbrUcGUuFbbnP2amw== 0000950005-01-000298.txt : 20010223 0000950005-01-000298.hdr.sgml : 20010223 ACCESSION NUMBER: 0000950005-01-000298 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20010214 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: ACTIVE POWER INC CENTRAL INDEX KEY: 0001044435 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC SERVICES [4911] IRS NUMBER: 742642142 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: SEC FILE NUMBER: 005-59961 FILM NUMBER: 1544307 BUSINESS ADDRESS: STREET 1: 11525 STONEHOLLOW DR STREET 2: STE 110 CITY: AUSTIN STATE: TX ZIP: 78758 BUSINESS PHONE: 5128366464 MAIL ADDRESS: STREET 1: 11525 STONEHOLLOW DR STREET 2: STE 110 CITY: AUSTIN STATE: TX ZIP: 78758 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: AUSTIN VENTURES IV A LP CENTRAL INDEX KEY: 0001106472 STANDARD INDUSTRIAL CLASSIFICATION: [] IRS NUMBER: 742717230 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 701 N BRAZOS SUITE 1400 CITY: AUSTIN STATE: TX ZIP: 78701 BUSINESS PHONE: 5124763952 MAIL ADDRESS: STREET 1: 701 N BRAZOS ST SUITE 1400 CITY: AUSTIN STATE: TX ZIP: 78701 SC 13G 1 0001.txt FORM SC 13G 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._______)* Active Power, Inc. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock - -------------------------------------------------------------------------------- (Title of Class of Securities) 00504W100 - -------------------------------------------------------------------------------- (CUSIP Number) December 31, 2000 - -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [ ] Rule 13d-1(c) [X] Rule 13d-1(d) *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 disclosures provided in a prior cover page. The information required on 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 15 Exhibit Index on Page 13 - ------------------------- ------------------------- CUSIP NO. 00504W100 13G Page 2 of 15 - ------------------------- ------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Austin Ventures IV-A, L.P. ("AV IV-A") 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 Delaware - -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 883,644 shares, except that AV Partners IV, OWNED BY EACH L.P. ("AVP IV"), the general partner of AV REPORTING IV-A, may be deemed to have sole power to PERSON vote these shares, and Joseph C. Aragona WITH ("Arogona"), Kenneth P. DeAngelis ("DeAngelis"), Jeffery C. Garvey ("Garvey) and William P. Wood ("Wood"), the general partners of AVP IV, may be deemed to have shared power to vote these shares. -------------------------------------------------- 6 SHARED VOTING POWER See response to row 5. -------------------------------------------------- 7 SOLE DISPOSITIVE POWER 883,644 shares, except that AVP IV, the general partner of AV IV-A, may be deemed to have sole power to dispose of these shares, and Aragona, DeAngelis, Garvey and Wood, the general partners of AVP IV, may be deemed to have shared power to dispose of these shares. -------------------------------------------------- 8 SHARED DISPOSITIVE POWER See response to row 7. - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 883,644 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 2.28% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- * SEE INSTRUCTIONS BEFORE FILLING OUT! - ------------------------- ------------------------- CUSIP NO. 00504W100 13G Page 3 of 15 - ------------------------- ------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Austin Ventures IV-B, L.P. ("AV IV-B") 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 Delaware - -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 1,853,881 shares, except that AVP IV, the OWNED BY EACH general partner of AV IV-B, may be deemed to REPORTING have sole power to vote these shares, and PERSON Aragona, DeAngelis, Garvey and Wood, the WITH general partners of AVP IV, may be deemed to have shared power to vote these shares. -------------------------------------------------- 6 SHARED VOTING POWER See response to row 5. -------------------------------------------------- 7 SOLE DISPOSITIVE POWER 1,853,881 shares, except that AVP IV, the general partner of AV IV-B, may be deemed to have sole power to dispose of these shares, and Aragona, DeAngelis, Garvey and Wood, the general partners of AVP IV, may be deemed to have shared power to dispose of these shares. -------------------------------------------------- 8 SHARED DISPOSITIVE POWER See response to row 7. - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,853,881 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 4.78% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- * SEE INSTRUCTIONS BEFORE FILLING OUT! - ------------------------- ------------------------- CUSIP NO. 00504W100 13G Page 4 of 15 - ------------------------- ------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON AV Partners IV, L.P. ("AVP IV") 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 Delaware - -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 2,737,525 shares, of which 883,644 are OWNED BY EACH directly owned by AV IV-A and 1,853,881 are REPORTING directly owned by AV IV-B. AVP IV, the PERSON general partner of AV IV-A and AV IV-B, may WITH be deemed to have sole power to vote these shares, and Aragona, DeAngelis, Garvey and Wood, the general partners of AVP IV, may be deemed to have shared power to vote these shares. -------------------------------------------------- 6 SHARED VOTING POWER See response to row 5. -------------------------------------------------- 7 SOLE DISPOSITIVE POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. AVP IV, the general partner of AV IV-A and AV IV-B, may be deemed to have sole power to dispose of these shares, and Aragona, DeAngelis, Garvey and Wood, the general partners of AVP IV, may be deemed to have shared power to dispose of these shares. -------------------------------------------------- 8 SHARED DISPOSITIVE POWER See response to row 7. - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,737,525 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.05% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- * SEE INSTRUCTIONS BEFORE FILLING OUT! - ------------------------- ------------------------- CUSIP NO. 00504W100 13G Page 5 of 15 - ------------------------- ------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Joseph C. Aragona ("Aragona") 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 - -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------------------------------------------------- 6 SHARED VOTING POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. Aragona is a general partner of AVP IV, the general partner of AV IV-A and AV IV-B, and may be deemed to have shared power to vote these shares. -------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 shares -------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. Aragona is a general partner of AVP IV, the general partner of AV IV-A and AV IV-B, and may be deemed to have shared power to dispose of these shares. - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,737,525 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.05% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- * SEE INSTRUCTIONS BEFORE FILLING OUT! - ------------------------- ------------------------- CUSIP NO. 00504W100 13G Page 6 of 15 - ------------------------- ------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Kenneth P. DeAngelis ("DeAngelis") 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 - -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------------------------------------------------- 6 SHARED VOTING POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. DeAngelis is a general partner of AVP IV, the general partner of AV IV-A and AV IV-B, and may be deemed to have shared power to vote these shares. -------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 shares -------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. DeAngelis is a general partner of AVP IV, the general partner of AV IV-A and AV IV-B, and may be deemed to have shared power to dispose of these shares. - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,737,525 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.05% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- * SEE INSTRUCTIONS BEFORE FILLING OUT! - ------------------------- ------------------------- CUSIP NO. 00504W100 13G Page 7 of 15 - ------------------------- ------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Jeffery C. Garvey ("Garvey") 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 - -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 0 shares OWNED BY EACH REPORTING PERSON WITH -------------------------------------------------- 6 SHARED VOTING POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. Garvey is a general partner of AVP IV, the general partner of AV IV-A and AV IV-B, and may be deemed to have shared power to vote these shares. -------------------------------------------------- 7 SOLE DISPOSITIVE POWER 0 shares -------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. Garvey is a general partner of AVP IV, the general partner of AV IV-A and AV IV-B, and may be deemed to have shared power to dispose of these shares. - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,737,525 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.05% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- * SEE INSTRUCTIONS BEFORE FILLING OUT! - ------------------------- ------------------------- CUSIP NO. 00504W100 13G Page 8 of 15 - ------------------------- ------------------------- - -------------------------------------------------------------------------------- 1 NAME OF REPORTING SS OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON William P. Wood ("Wood") 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 - -------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 27,581 shares, of which 1,577 are directly OWNED BY EACH owned by Wood and 26,004 shares are directly REPORTING owned by Silverton Partners, L.P. PERSON ("Silverton"), a Texas limited partnership, WITH and Wood, the sole general partner of Silverton, may be deemed to have sole power to vote these shares. -------------------------------------------------- 6 SHARED VOTING POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. Wood is a general partner of AVP IV, the general partner of AV IV-A and AV IV-B, and may be deemed to have shared power to vote these shares. -------------------------------------------------- 7 SOLE DISPOSITIVE POWER 27,581 shares, of which 1,577 are directly owned by Wood and 26,004 shares are directly owned by Silverton, and Wood, the sole general partner of Silverton, may be deemed to have sole power to dispose of these shares. -------------------------------------------------- 8 SHARED DISPOSITIVE POWER 2,737,525 shares, of which 883,644 are directly owned by AV IV-A and 1,853,881 are directly owned by AV IV-B. Wood is a general partner of AVP IV, the general partner of AV IV-A and AV IV-B, and may be deemed to have shared power to dispose of these shares. - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,765,106 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.12% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- * SEE INSTRUCTIONS BEFORE FILLING OUT! Page 9 of 15 ITEM 1(A). NAME OF ISSUER Active Power, Inc. ITEM 1(B). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES 11525 Stonehollow Drive Suite 110 Austin, TX 78758 ITEM 2(A). NAME OF PERSONS FILING This Statement is filed by Austin Ventures IV-A, L.P., a Delaware limited partnership ("AV IV-A"), Austin Ventures IV-B, L.P., a Delaware limited partnership ("AV IV-B"), AV Partners IV, L.P., a Delaware limited partnership ("AVP IV"), Joseph C. Aragona ("Arogona"), Kenneth P. DeAngelis ("DeAngelis"), Jeffery C. Garvey ("Garvey) and William P. Wood ("Wood"), the general partners of AVP IV. The foregoing entities and individuals are collectively referred to as the "Reporting Persons." AVP IV, the general partner of AV IV-A and AV IV-B, may be deemed to have sole power to vote and sole power to dispose of shares of the issuer directly owned by AV IV-A and AV IV-B. Aragona, DeAngelis, Garvey and Wood are general partners of AVP IV and may be deemed to have shared power to vote and shared power to dispose of shares of the issuer directly owned by AV IV-A and AV IV-B. ITEM 2(B). ADDRESS OF PRINCIPAL OFFICE The address for each of the Reporting Persons is: Austin Ventures 701 N. Brazos St., Suite 1400 Austin, Texas 78701 ITEM 2(C) CITIZENSHIP AV IV-A, AV IV-B and AVP IV, are Delaware limited partnerships Aragona, DeAngelis, Garvey and Wood are United States citizens. ITEM 2(D) AND (E). TITLE OF CLASS OF SECURITIES AND CUSIP NUMBER Common Stock CUSIP # 00504W100 ITEM 3. Not Applicable 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, 2000: (a) Amount beneficially owned: See Row 9 of cover page for each Reporting Person. (b) Percent of Class: Page 10 of 15 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. 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 partnership agreements of AV IV-A, AV IV-B and AVP IV, the general and limited partners of each of such entities may be deemed to have the right to receive dividends from, or the proceeds from, the sale of shares of the issuer owned by each such entity of which they are a partner. ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY Not applicable. ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP. Not applicable ITEM 9. NOTICE OF DISSOLUTION OF GROUP. Not applicable ITEM 10. CERTIFICATION. Not applicable Page 11 of 15 SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: February 14, 2001 AUSTIN VENTURES IV-A, L.P., a Delaware Limited Partnership By: AV Partners IV, L.P., a Delaware Limited Partnership Its General Partner By: /s/ Kenneth P. DeAngelis ------------------------------------------ Kenneth P. DeAngelis General Partner AUSTIN VENTURES IV-B, L.P., a Delaware Limited Partnership By: AV Partners IV, L.P., a Delaware Limited Partnership Its General Partner By: /s/ Kenneth P. DeAngelis ------------------------------------------ Kenneth P. DeAngelis General Partner AV PARTNERS IV, L.P.., a Delaware Limited Partnership By: /s/ Kenneth P. DeAngelis ------------------------------------------ Kenneth P. DeAngelis General Partner Page 12 of 15 JOSEPH C. ARAGONA By: /s/ Joseph C. Aragona ------------------------------------------ Joseph C. Aragona KENNETH P. DeANGELIS By: /s/ Kenneth P. DeAngelis ------------------------------------------ Kenneth P. DeAngelis JEFFERY C. GARVEY By: /s/ Jeffery C. Garvey ------------------------------------------ Jeffery C. Garvey WILLIAM P. WOOD By: /s/ William P. Wood ------------------------------------------ William P. Wood Page 13 of 15 EXHIBIT INDEX Found on Sequentially Exhibit Numbered Page - ------- ------------- Exhibit A: Agreement of Joint Filing 14 Page 14 of 15 EXHIBIT A Agreement of Joint Filing The undersigned hereby agree that a single Schedule 13G (or any amendment thereto) relating to the Common Stock of Active Power, Inc. shall be filed on behalf of each of the undersigned and that this Agreement shall be filed as an exhibit to such Schedule 13G. Date: February 14, 2001 AV PARTNERS IV, L.P., a Delaware Limited Partnership By: /s/ Kenneth P. DeAngelis ------------------------------------------ Kenneth P. DeAngelis, General Partner AUSTIN VENTURES IV-A, L.P., a Delaware Limited Partnership By: AV Partners IV, L.P., a Delaware Limited Partnership Its General Partner By: /s/ Kenneth P. DeAngelis ------------------------------------------ Kenneth P. DeAngelis, General Partner AUSTIN VENTURES IV-B, L.P., a Delaware Limited Partnership By: AV Partners IV, L.P., a Delaware Limited Partnership Its General Partner p By: /s/ Kenneth P. DeAngelis ------------------------------------------ Kenneth P. DeAngelis, General Partner By: /s/ Joseph C. Aragona ------------------------------------------ Joseph C. Aragona Page 15 of 15 By: /s/ Kenneth P. DeAngelis ------------------------------------------ Kenneth P. DeAngelis By: /s/ Jeffery C. Garvey ------------------------------------------ Jeffery C. Garvey By: /s/ William P. Wood ------------------------------------------ William P. Wood -----END PRIVACY-ENHANCED MESSAGE-----