-----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, NxrAYr38X0zaKjrKyUvkmwe596WWLvbPnswwhyrt/o2uA5nK3GdPj2YIisLL5Uu9 1SolixdDsgFivYJGSUc/lg== 0000950149-99-000247.txt : 19990217 0000950149-99-000247.hdr.sgml : 19990217 ACCESSION NUMBER: 0000950149-99-000247 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19990216 GROUP MEMBERS: A. GRANT HEIDRICH, III GROUP MEMBERS: F. GIBSON MYERS, JR. GROUP MEMBERS: KEVIN A. FONG GROUP MEMBERS: MAYFIELD ASSOCIATES FUND II GROUP MEMBERS: MAYFIELD VII GROUP MEMBERS: MAYFIELD VII MANAGEMENT PARTNERS GROUP MEMBERS: MICHAEL J. LEVINTHAL GROUP MEMBERS: WENDELL G. VAN AUKEN, III GROUP MEMBERS: WILLIAM D. UNGER GROUP MEMBERS: YOGEN K. DALAL SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: MEGABIOS CORP CENTRAL INDEX KEY: 0000932352 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731] IRS NUMBER: 943156660 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-53479 FILM NUMBER: 99540673 BUSINESS ADDRESS: STREET 1: 863A MITTEN RD CITY: BURLINGAME STATE: CA ZIP: 94010 BUSINESS PHONE: 6506971900 MAIL ADDRESS: STREET 1: 863A MITTEN ROAD CITY: BURLINGAME STATE: CA ZIP: 94010 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: MAYFIELD VII CENTRAL INDEX KEY: 0000895003 STANDARD INDUSTRIAL CLASSIFICATION: [] IRS NUMBER: 943167809 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 2800 SAND HILL ROAD CITY: MENLO PARK STATE: CA ZIP: 94025 BUSINESS PHONE: 4158545560 MAIL ADDRESS: STREET 1: C/O MAYFIELD FUND STREET 2: 2800 SAND HILL ROAD CITY: MENLO PARK STATE: CA ZIP: 94025 SC 13G/A 1 AMENDMENT NO. 1 TO SCHEDULE 13G 1 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)(1) Megabios Corporation (Name of Issuer) Common Stock, par value $.001 per share (Title of Class of Securities) 58515T102 (CUSIP Number) December 31, 1998 (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) (1)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). 2 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 2 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) MAYFIELD VII, A CALIFORNIA LIMITED PARTNERSHIP 94-3167809 - -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC Use Only - -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization CALIFORNIA - -------------------------------------------------------------------------------- Number of 5. Sole Voting Power Shares -0- ----------------------------------------------------------------- Beneficially 6. Shared Voting Power Owned By 817,505 ----------------------------------------------------------------- Each 7. Sole Dispositive Power Reporting -0- ----------------------------------------------------------------- Person 8. Shared Dispositive Power With 817,505 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 817,505 - -------------------------------------------------------------------------------- 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 - -------------------------------------------------------------------------------- 3 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 3 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) MAYFIELD VII MANAGEMENT PARTNERS, A CALIFORNIA LIMITED PARTNERSHIP 94-3167811 - -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC Use Only - -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization CALIFORNIA - -------------------------------------------------------------------------------- Number of 5. Sole Voting Power Shares -0- ----------------------------------------------------------------- Beneficially 6. Shared Voting Power Owned By 817,505 ----------------------------------------------------------------- Each 7. Sole Dispositive Power Reporting -0- ----------------------------------------------------------------- Person 8. Shared Dispositive Power With 817,505 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 817,505 - -------------------------------------------------------------------------------- 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 - -------------------------------------------------------------------------------- 4 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 4 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) MAYFIELD ASSOCIATES FUND II, A CALIFORNIA LIMITED PARTNERSHIP 94-3191510 - -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (a) [ ] (b) [X] - -------------------------------------------------------------------------------- 3. SEC Use Only - -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization CALIFORNIA - -------------------------------------------------------------------------------- 5. Sole Voting Power -0- ----------------------------------------------------------------- Number of 6. Shared Voting Power Shares Beneficially 31,163 Owned By ----------------------------------------------------------------- Each 7. Sole Dispositive Power Reporting Person -0- With ----------------------------------------------------------------- 8. Shared Dispositive Power 31,163 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 31,163 - -------------------------------------------------------------------------------- 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 - -------------------------------------------------------------------------------- 5 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 5 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) YOGEN K. DALAL - -------------------------------------------------------------------------------- 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. - -------------------------------------------------------------------------------- 5. Sole Voting Power 8,120 ----------------------------------------------------------------- 6. Shared Voting Power Number of Shares 848,668 Beneficially ----------------------------------------------------------------- Owned By 7. Sole Dispositive Power Reporting Person 8,120 With ----------------------------------------------------------------- 8. Shared Dispositive Power 848,668 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 856,788 - -------------------------------------------------------------------------------- 10. Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] - -------------------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) 6.6% - -------------------------------------------------------------------------------- 12. Type of Reporting Person IN - -------------------------------------------------------------------------------- 6 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 6 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) F. GIBSON MYERS, JR. - -------------------------------------------------------------------------------- 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. - -------------------------------------------------------------------------------- 5. Sole Voting Power 19,530 ----------------------------------------------------------------- Number of 6. Shared Voting Power Shares Beneficially 848,668 Owned By ----------------------------------------------------------------- Each 7. Sole Dispositive Power Reporting Person 19,530 With ----------------------------------------------------------------- 8. Shared Dispositive Power 848,668 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 868,198 - -------------------------------------------------------------------------------- 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 - -------------------------------------------------------------------------------- 7 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 7 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) KEVIN A. FONG - -------------------------------------------------------------------------------- 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. - -------------------------------------------------------------------------------- 5. Sole Voting Power 12,319 ----------------------------------------------------------------- Number of 6. Shared Voting Power Shares Beneficially 848,668 Owned By ----------------------------------------------------------------- Reporting 7. Sole Dispositive Power Person With 12,319 ----------------------------------------------------------------- 8. Shared Dispositive Power 848,668 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 860,987 - -------------------------------------------------------------------------------- 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 - -------------------------------------------------------------------------------- 8 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 8 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) WILLIAM D. UNGER - -------------------------------------------------------------------------------- 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. - -------------------------------------------------------------------------------- 5. Sole Voting Power 11,582 ----------------------------------------------------------------- Number of 6. Shared Voting Power Shares Beneficially 848,668 Owned By ----------------------------------------------------------------- Each 7. Sole Dispositive Power Reporting Person 11,582 With ----------------------------------------------------------------- 8. Shared Dispositive Power 848,668 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 860,250 - -------------------------------------------------------------------------------- 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 - -------------------------------------------------------------------------------- 9 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 9 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) WENDELL G. VAN AUKEN, III - -------------------------------------------------------------------------------- 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. - -------------------------------------------------------------------------------- 5. Sole Voting Power -0- ----------------------------------------------------------------- Number of 6. Shared Voting Power Shares Beneficially 848,668 Owned By ----------------------------------------------------------------- Each 7. Sole Dispositive Power Reporting Person -0- With ----------------------------------------------------------------- 8. Shared Dispositive Power 848,668 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 848,668 - ------------------------------------------------------------------------------ - 10. Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares [ ] - -------------------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) 6.6% - -------------------------------------------------------------------------------- 12. Type of Reporting Person IN - -------------------------------------------------------------------------------- 10 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 10 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) MICHAEL J. LEVINTHAL - -------------------------------------------------------------------------------- 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. - -------------------------------------------------------------------------------- 5. Sole Voting Power 12,319 ----------------------------------------------------------------- Number of 6. Shared Voting Power Shares Beneficially 848,668 Owned By ----------------------------------------------------------------- Each 7. Sole Dispositive Power Reporting Person 12,319 With ----------------------------------------------------------------- 8. Shared Dispositive Power 848,668 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 860,987 - ------------------------------------------------------------------------------- 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 - -------------------------------------------------------------------------------- 11 13G - --------------------------------- ----------------------------- CUSIP No. 58515T102 Page 11 of 17 pages. - --------------------------------- ----------------------------- - -------------------------------------------------------------------------------- 1. Name of Reporting Person I.R.S. Identification No. of Above Persons (Entities Only) A. GRANT HEIDRICH, III - -------------------------------------------------------------------------------- 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. - -------------------------------------------------------------------------------- 5. Sole Voting Power 19,530 ----------------------------------------------------------------- Number of 6. Shared Voting Power Shares Beneficially 848,668 Owned By ----------------------------------------------------------------- Each 7. Sole Dispositive Power Reporting Person 19,530 With ----------------------------------------------------------------- 8. Shared Dispositive Power 848,668 - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 868,198 - ------------------------------------------------------------------------------- 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 - -------------------------------------------------------------------------------- 12 ITEM 1. (a) NAME OF ISSUER: Megabios Corporation (b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 863 A Mitten Road Burlingame, CA 94010 ITEM 2. (a) NAME OF PERSONS FILING: Mayfield VII, a California Limited Partnership Mayfield VII Management Partners, a California Limited Partnership Mayfield Associates Fund II, a California Limited Partnership Yogen K. Dalal Kevin A. Fong Wendell G. Van Auken, III A. Grant Heidrich, III F. Gibson Myers, Jr. William D. Unger Michael J. Levinthal (b) ADDRESS OF PRINCIPAL BUSINESS OFFICE: c/o Mayfield Fund 2800 Sand Hill Road Menlo Park, CA 94025 (c) CITIZENSHIP: The entities listed in Item 2(a) are California Partnerships. The individuals listed in Item 2(a) are U.S. citizens. (d) TITLE OF CLASS OF SECURITIES: Common Stock, par value $.001 per share. (e) CUSIP NUMBER: 58515T102 Page 12 of 17 pages. 13 ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), OR 13d-2(b), CHECK WHETHER THE PERSON FILING IS A: Not applicable ITEM 4. OWNERSHIP The information regarding ownership as set forth in Items 5-9 of Pages 2-11 hereto, is hereby incorporated by reference. For a summary of total ownership by all Reporting Persons, see Exhibit 2 hereto. ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following []. ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON Not applicable. 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 13 of 17 pages. 14 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 16, 1999 MAYFIELD VII A California Limited Partnership By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Authorized Signatory By: MAYFIELD VII MANAGEMENT PARTNERS A California Limited Partnership By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Authorized Signatory By: MAYFIELD ASSOCIATES FUND II A California Limited Partnership By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Authorized Signatory YOGEN K. DALAL By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Attorney In Fact F. GIBSON MYERS, JR. By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Attorney In Fact KEVIN A. FONG By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Attorney In Fact WILLIAM D. UNGER By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Attorney In Fact Page 14 of 17 pages. 15 WENDELL G. VAN AUKEN, III By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Attorney In Fact MICHAEL J. LEVINTHAL By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Attorney In Fact A. GRANT HEIDRICH, III By: /s/ George A. Pavlov ---------------------------------------- George A. Pavlov, Attorney In Fact Page 15 of 17 pages. 16 EXHIBIT 1 Exhibit 1- "Statement Appointing Designated Filer and Authorized Signatory" is hereby incorporated by reference to Exhibit 1 to the Statement on Schedule 13G dated February 17, 1998. Page 16 of 17 pages. 17 EXHIBIT 2
PERCENT OF CLASS NAME OF REPORTING PERSON NUMBER OF SHARES BENEFICIALLY OWNED(1) - ------------------------------ ------------------ ----------------- Mayfield VII, a California Limited Partnership 817,505 (2) 6.3% Mayfield VII Management Partners, a California Limited Partnership 817,505 (2) 6.3% Mayfield Associates Fund II, 31,163 (3) 0.2% a California Limited Partnership Yogen K. Dalal 856,788 (4) 6.6% F. Gibson Myers, Jr. 868,198 (4) 6.7% Kevin A. Fong 860,987 (4) 6.7% William D. Unger 860,250 (4) 6.7% Wendell G. Van Auken, III 848,668 (4) 6.6% Michael J. Levinthal 860,987 (4) 6.7% A. Grant Heidrich, III 868,198 (4) 6.7% Total 932,068 7.2%
(1) The respective percentages set forth in this column were obtained by dividing the number of shares by the aggregate number of outstanding shares of Common Stock as of 9/30/98. (2) Represents shares held of record by Mayfield VII, of which Mayfield VII Management Partners is the sole General Partner. (3) Represents shares held of record by Mayfield Associates Fund II. (4) The individual Reporting Persons listed are General Partners of Mayfield VII Management, which is the General Partner of Mayfield VII. The individual Reporting Persons are also General Partners of Mayfield Associates Fund II. The individual Reporting Persons may be deemed to have shared voting and dispositive power over the shares which are or may be deemed to be beneficially owned by Mayfield VII and Mayfield Associates Fund II but disclaim such beneficial ownership. Each individual Reporting Person expressly disclaims that he is the beneficial owner of any shares which are held by any other individual Reporting Person in his individual capacity. Page 17 or 17 pages. -----END PRIVACY-ENHANCED MESSAGE-----