-----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, VfcE6qi/zRXl+BszSAT4Q8Xdg3VgjIFN6guGoY+W/8YJbtSKVt/t1ycN92Pk1DNj nYgli33K6P60/mjkFlIVqQ== 0000950116-97-000279.txt : 19970222 0000950116-97-000279.hdr.sgml : 19970222 ACCESSION NUMBER: 0000950116-97-000279 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19970214 SROS: NONE GROUP MEMBERS: HAROLD R. WERNER GROUP MEMBERS: HEALTHCARE PARTNERS II, L.P. GROUP MEMBERS: HEALTHCARE PARTNERS III, L.P. GROUP MEMBERS: HEALTHCARE PARTNERS IV, L.P. GROUP MEMBERS: HEALTHCARE VENTURES II LP GROUP MEMBERS: HEALTHCARE VENTURES III, L.P. GROUP MEMBERS: HEALTHCARE VENTURES IV, L.P. GROUP MEMBERS: JAMES H. CAVANAUGH, PH.D. GROUP MEMBERS: JOHN W. LITTLECHILD GROUP MEMBERS: WILLIAM CROUSE SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: BIOTRANSPLANT INC CENTRAL INDEX KEY: 0000880259 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 043119555 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: 1934 Act SEC FILE NUMBER: 005-48065 FILM NUMBER: 97532921 BUSINESS ADDRESS: STREET 1: BUILDING 75, 3RD AVENUE STREET 2: BLDG 96 13TH ST CITY: CHARLESTOWN STATE: MA ZIP: 02129 BUSINESS PHONE: 6172415200 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: HEALTHCARE VENTURES II LP CENTRAL INDEX KEY: 0000859649 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 223015728 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: TWIN TOWERS AT METRO PARK STREET 2: 379 THORNALL AVENUE CITY: EDISON STATE: NJ ZIP: 08837 BUSINESS PHONE: 9089064613 MAIL ADDRESS: STREET 1: TWIN TOWERS AT METRO PARK STREET 2: 379 THORNALL AVENUE CITY: EDISON STATE: NJ ZIP: 08837 SC 13G 1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* BIOTRANSPLANT INCORPORATED ----------------------------------------------------------------- (Name of Issuer) Common Stock $.01 par value ----------------------------------------------------------------- (Title of Class of Securities) 09066Y107 ----------------------------------------------------------------- (CUSIP Number) Check the following box if a fee is being paid with this statement [X]. (A fee is not required only if the reporting person: (1) has a previous statement on file reporting beneficial ownership of more than five percent of the class of securities described in Item 1; and (2) has filed no amendment subsequent thereto reporting beneficial ownership of five percent or less of such class.) (See Rule 13d-7.) *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 page(s)) Page 1 of 17 pages -- -- CUSIP No. 09066Y107 13G Page 2 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON HealthCare Ventures II, 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 Delaware ------------------------------------------------------------------- 5. SOLE VOTING POWER ----------------------------------------------- NUMBER OF 6. SHARED VOTING POWER SHARES BENEFICIALLY 1,570,886 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 1,570,886 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,570,886 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 18.2% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* PN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 3 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON HealthCare Partners II, 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 Delaware ------------------------------------------------------------------- 5. SOLE VOTING POWER ----------------------------------------------- NUMBER OF 6. SHARED VOTING POWER SHARES BENEFICIALLY 1,570,886 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 1,570,886 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,570,886 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 18.2% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* PN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 4 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON HealthCare Ventures III, 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 Delaware ------------------------------------------------------------------- 5. SOLE VOTING POWER ----------------------------------------------- NUMBER OF 6. SHARED VOTING POWER SHARES BENEFICIALLY 874,539 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 874,539 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 874,539 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* PN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 5 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON HealthCare Partners III, 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 Delaware ------------------------------------------------------------------- 5. SOLE VOTING POWER ----------------------------------------------- NUMBER OF 6. SHARED VOTING POWER SHARES BENEFICIALLY 874,539 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 874,539 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 874,539 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* PN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 6 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON HealthCare Ventures IV, 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 Delaware ------------------------------------------------------------------- 5. SOLE VOTING POWER ----------------------------------------------- NUMBER OF 6. SHARED VOTING POWER SHARES BENEFICIALLY 258,075 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 258,075 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 258,075 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 3.0% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* PN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 7 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON HealthCare Partners IV, 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 Delaware ------------------------------------------------------------------- 5. SOLE VOTING POWER ----------------------------------------------- NUMBER OF 6. SHARED VOTING POWER SHARES BENEFICIALLY 258,075 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 258,075 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 258,075 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 3.0% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* PN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 8 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON James H. Cavanaugh, Ph.D. ------------------------------------------------------------------- 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 6. SHARED VOTING POWER SHARES BENEFICIALLY 2,703,500 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 2,703,500 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,703,500 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 30.9% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 9 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Harold R. Werner ------------------------------------------------------------------- 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 6. SHARED VOTING POWER SHARES BENEFICIALLY 2,703,500 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 2,703,500 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,703,500 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 30.9% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 10 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON William Crouse ------------------------------------------------------------------- 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 6. SHARED VOTING POWER SHARES BENEFICIALLY 2,703,500 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 2,703,500 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,703,500 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 30.9% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 09066Y107 13G Page 11 of 17 pages ------------ ----- ----- ------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON John W. Littlechild ------------------------------------------------------------------- 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 6. SHARED VOTING POWER SHARES BENEFICIALLY 2,703,500 OWNED BY ----------------------------------------------- EACH 7. SOLE DISPOSITIVE POWER REPORTING PERSON WITH ----------------------------------------------- 8. SHARED DISPOSITIVE POWER 2,703,500 ------------------------------------------------------------------- 9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 2,703,500 ------------------------------------------------------------------- 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------- 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 30.9% ------------------------------------------------------------------- 12. TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! Page 12 of 17 Pages Item 1. (a) Name of Issuer: BioTransplant Incorporated (b) Address of Issuer's Principal Executive Offices: Charlestown Navy Yard, Building 75, Third Avenue Charlestown, Massachusetts 02129 Item 2. (a) Name of Person Filing: HealthCare Ventures II, L.P. ("HCV II"), HealthCare Partners II, L.P. ("HCP II"), HealthCare Ventures III, L.P. ("HCV III"), HealthCare Partners III, L.P. ("HCP III"), HealthCare Ventures IV, L.P. ("HCV IV"), HealthCare Partners IV, L.P. ("HCP IV"), Dr. Cavanaugh and Messrs. Werner, Littlechild, and Crouse. See attached Exhibit A which is a copy of their agreement in writing to file this statement on behalf of each of them.(1) (b) Address of Principal Business Office or, if none, Residence: The business address for HCV II, HCP II, HCV III, HCP III, HCV IV, HCP IV and Dr. Cavanaugh and Messrs. Werner and Crouse is Twin Towers at Metro Park, 379 Thornall Street, Edison, New Jersey 08837. The business address for Mr. Littlechild is One Kendall Square, Building 300, Cambridge, Massachusetts 02139. (c) Citizenship: HCV II, HCP II, HCV III, HCP III, HCV IV and HCP IV are limited partnerships organized under the laws of the State of Delaware. Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse are each United States citizens. (d) Title of Class of Securities: Common Stock, par value $.01 ("Shares"). -------- (1) Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse are general partners of each of HCP II, HCP III and HCP IV, which are the general partner of each of HCV II, HCV III and HCV IV, respectively the record holder of Issuer's securities. Page 13 of 17 Pages (e) CUSIP Number: 09066Y107 Item 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b), check whether the person filing is a: Inapplicable. Item 4. Ownership. (a) Amount Beneficially Owned: As of December 31, 1996: HCV II and HCP II beneficially owned 1,570,886 Shares of Issuer's Securities, consisting of 1,492,009 Shares of Issuer's Common Stock and immediately exercisable warrants to purchase 42,980 Shares of Issuers Common Stock. HCV III and HCP III beneficially owned 874,539 Shares of Issuer's Securities, consisting of 774,834 Shares of Issuer's Common Stock and immediately exercisable warrants to purchase 99,705 Shares of Issuer's Common Stock; HCV IV and HCP IV beneficially owned 258,075 Shares of Issuer's Securities, consisting of 228,504 Shares of Issuer's Common Stock and immediately exercisable warrants to purchase 29,571 Shares of Issuer's Common Stock; and Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse beneficially owned 2,703,500 Shares of Issuer's Securities, consisting of 2,495,347 Shares of Common Stock and immediately exercisable warrants to purchase 208,153 Shares of Issuer's Common Stock. (b) Percent of Class: As of December 31, 1996: the 1,570,886 Shares of Issuer's Securities beneficially owned by HCV II and HCP II constitute 18.2% of Issuer's Shares outstanding; the 874,539 Shares of Issuer's Securities beneficially owned by HCV III and HCP III constitute 10.1% of the Issuer's Shares outstanding; the 258,075 Shares of Issuer's Securities beneficially owned by HCV IV and HCP IV constitute 3.0% of Issuer's Shares outstanding; and the 2,703,500 Shares of Issuer's Securities beneficially owned by Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse constitute 30.9% of Issuer's Shares outstanding. (c) Number of shares as to which such person has: (i) sole power to vote or to direct the vote: Inapplicable Page 14 of 17 Pages (ii) shared power to vote or to direct the vote: HCV II, HCP II, Dr. Cavanaugh and Messrs. Werner, Littlechild, and Crouse share the power to vote or direct the vote of those Shares owned by HCV II. HCV III, HCP III, Dr. Cavanaugh and Messrs. Werner, Littlechild, and Crouse share the power to vote or direct the vote of those Shares owned by HCV III. HCV IV, HCP IV, Dr. Cavanaugh and Messrs. Werner, Littlechild, and Crouse share the power to vote or direct the vote of those Shares owned by HCV IV. (iii) sole power to dispose or to direct the disposition of: Inapplicable (iv) shared power to dispose of or to direct the disposition of: HCV II, HCP II, Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse share the power to dispose of or direct the disposition of those Shares owned by HCV II. HCV III, HCP III, Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse share the power to dispose of or direct the disposition of those Shares owned by HCV III. HCV IV, HCP IV, Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse share the power to dispose of or direct the disposition of those Shares owned by HCV IV. Item 5. Ownership of Five Percent or less of a Class: Inapplicable. Item 6. Ownership of More than Five Percent on Behalf of Another Person: Inapplicable. Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company: Inapplicable. Item 8. Identification and Classification of Members of the Group: Inapplicable. Page 15 of 17 Pages Item 9. Notice of Dissolution of Group: Inapplicable. Item 10. Certification: Inapplicable. Page 16 of 17 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: February 13, 1997 HealthCare Ventures II, L.P., Edison, New Jersey by its General Partner, HealthCare Partners II, L.P. By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Partners II, L.P. Edison, New Jersey By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Ventures III, L.P., Edison, New Jersey by its General Partner, HealthCare Partners III, L.P. By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Partners III, L.P. Edison, New Jersey By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Ventures IV, L.P., Edison, New Jersey by its General Partner, HealthCare Partners IV, L.P. By: /s/ Jeffrey Steinberg ------------------------------------------ Administrative Partner Dated: February 13, 1997 HealthCare Partners IV, L.P. Edison, New Jersey By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 By: /s/ Jeffrey Steinberg as Attorney-in-Fact Edison, New Jersey ------------------------------------------- James H. Cavanaugh, Ph.D. Dated: February 13, 1997 By: /s/ Jeffrey Steinberg as Attorney-in-Fact Edison, New Jersey ------------------------------------------- Harold R. Werner Dated: February 13, 1997 By: /s/ Jeffrey Steinberg as Attorney-in-Fact Cambridge, Massachusetts ------------------------------------------ John W. Littlechild Dated: February 13, 1997 By: /s/ Jeffrey Steinberg as Attorney-in-Fact Edison, New Jersey ------------------------------------------ William Crouse
Page 17 of 17 Pages EXHIBIT A AGREEMENT JOINT FILING OF SCHEDULE 13G The undersigned hereby agree to jointly prepare and file with regulatory authorities a Schedule 13G and any future amendments thereto reporting each of the undersigned's ownership of securities of BioTransplant Incorporated and hereby affirm that such Schedule 13G is being filed on behalf of each of the undersigned. Dated: February 13, 1997 HealthCare Ventures II, L.P., Edison, New Jersey by its General Partner, HealthCare Partners II, L.P. By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Partners II, L.P. Edison, New Jersey By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Ventures III, L.P., Edison, New Jersey by its General Partner, HealthCare Partners III, L.P. By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Partners III, L.P. Edison, New Jersey By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Ventures IV, L.P., Edison, New Jersey by its General Partner, HealthCare Partners IV, L.P. By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 HealthCare Partners IV, L.P. Edison, New Jersey By: /s/ Jeffrey Steinberg ------------------------------------------- Administrative Partner Dated: February 13, 1997 By: /s/ Jeffrey Steinberg as Attorney-in-Fact Edison, New Jersey ------------------------------------------- James H. Cavanaugh, Ph.D. Dated: February 13, 1997 By: /s/ Jeffrey Steinberg as Attorney-in-Fact Edison, New Jersey ------------------------------------------- Harold R. Werner Dated: February 13, 1997 By: /s/ Jeffrey Steinberg as Attorney-in-Fact Cambridge, Massachusetts ------------------------------------------- John W. Littlechild Dated: February 13, 1997 By: /s/ Jeffrey Steinberg as Attorney-in-Fact Edison, New Jersey ------------------------------------------- William Crouse
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