-----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, Aqr0xMRZWbx1TRwQ8aBNl+xcwD1Rg9jnxYSBESvSfcxpQs0V4vxHG3E3Msa7eM08 dbHqWViMv0mneXN6g7F6PA== 0000950116-98-000316.txt : 19980218 0000950116-98-000316.hdr.sgml : 19980218 ACCESSION NUMBER: 0000950116-98-000316 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19980213 SROS: NONE GROUP MEMBERS: HAROLD R. WERNER GROUP MEMBERS: HEALTHCARE PARTNERS I, L.P. GROUP MEMBERS: HEALTHCARE PARTNERS II, L.P. GROUP MEMBERS: HEALTHCARE VENTURES I LP GROUP MEMBERS: HEALTHCARE VENTURES I, L.P. GROUP MEMBERS: HEALTHCARE VENTURES II, 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: MEDIMMUNE INC /DE CENTRAL INDEX KEY: 0000873591 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 521555759 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: SEC FILE NUMBER: 005-42057 FILM NUMBER: 98537950 BUSINESS ADDRESS: STREET 1: 35 W WATKINS MILL RD CITY: GAITHERSBURG STATE: MD ZIP: 20878 BUSINESS PHONE: 3014170770 MAIL ADDRESS: STREET 1: 35 W WATKINS MILL ROAD CITY: GAITHERSBURG STATE: MD ZIP: 20878 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: HEALTHCARE VENTURES I LP CENTRAL INDEX KEY: 0001013461 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-OFFICES & CLINICS OF DOCTORS OF MEDICINE [8011] IRS NUMBER: 133281537 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A 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 STREET 2: 379 THORNALL AVENUE CITY: EDISON STATE: NJ ZIP: 08837 SC 13G/A 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) AND (c) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(b) (Amendment No. 5 )* MedImmune, Inc. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, $.01 par value - -------------------------------------------------------------------------------- (Title of Class of Securities) 584699102 ------------------------------ (CUSIP Number) * The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). (Continued on following page(s)) Page 1 of 14 Pages ________________________________________________________________________________ CUSIP No. 584699102 13G Page 2 of 14 Pages ________________________________________________________________________________ 1 | NAME OF REPORTING PERSON | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON | | HealthCare Ventures I, 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 | | SHARES | 6 | SHARED VOTING POWER BENEFICIALLY 0 OWNED BY |_____|__________________________________________________________ EACH | | REPORTING | 7 | SOLE DISPOSITIVE POWER PERSON WITH | | |_____|__________________________________________________________ | | | 8 | SHARED DISPOSITIVE POWER | | 0 _______________|_____|__________________________________________________________ 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | 0 _______|________________________________________________________________________ 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES | CERTAIN SHARES* [ ] _______|________________________________________________________________________ 11 | PERCENTAGE OF CLASS REPRESENTED BY AMOUNT IN ROW 9 | 0% _______|________________________________________________________________________ 12 | TYPE OF REPORTING PERSON* | PN _______|________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! ________________________________________________________________________________ CUSIP No. 584699102 13G Page 3 of 14 Pages ________________________________________________________________________________ 1 | NAME OF REPORTING PERSON | S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON | | HealthCare Partners I, 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 | | SHARES | 6 | SHARED VOTING POWER BENEFICIALLY 0 OWNED BY |_____|__________________________________________________________ EACH | | REPORTING | 7 | SOLE DISPOSITIVE POWER PERSON WITH | | |_____|__________________________________________________________ | | | 8 | SHARED DISPOSITIVE POWER | | 0 _______________|_____|__________________________________________________________ 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | 0 _______|________________________________________________________________________ 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES | CERTAIN SHARES* [ ] _______|________________________________________________________________________ 11 | PERCENTAGE OF CLASS REPRESENTED BY AMOUNT IN ROW 9 | 0% _______|________________________________________________________________________ 12 | TYPE OF REPORTING PERSON* | PN _______|________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! ________________________________________________________________________________ CUSIP No. 584699102 13G Page 4 of 14 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 | | SHARES | 6 | SHARED VOTING POWER BENEFICIALLY 27,973 OWNED BY |_____|__________________________________________________________ EACH | | REPORTING | 7 | SOLE DISPOSITIVE POWER PERSON WITH | | |_____|__________________________________________________________ | | | 8 | SHARED DISPOSITIVE POWER | | 27,973 _______________|_____|__________________________________________________________ 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | 27,973 _______|________________________________________________________________________ 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES | CERTAIN SHARES* [ ] _______|________________________________________________________________________ 11 | PERCENTAGE OF CLASS REPRESENTED BY AMOUNT IN ROW 9 | 0.1% _______|________________________________________________________________________ 12 | TYPE OF REPORTING PERSON* | PN _______|________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! ________________________________________________________________________________ CUSIP No. 584699102 13G Page 5 of 14 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 | | SHARES | 6 | SHARED VOTING POWER BENEFICIALLY 27,973 OWNED BY |_____|__________________________________________________________ EACH | | REPORTING | 7 | SOLE DISPOSITIVE POWER PERSON WITH | | |_____|__________________________________________________________ | | | 8 | SHARED DISPOSITIVE POWER | | 27,973 _______________|_____|__________________________________________________________ 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | 27,973 _______|________________________________________________________________________ 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES | CERTAIN SHARES* [ ] _______|________________________________________________________________________ 11 | PERCENTAGE OF CLASS REPRESENTED BY AMOUNT IN ROW 9 | 0.1% _______|________________________________________________________________________ 12 | TYPE OF REPORTING PERSON* | PN _______|________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! ________________________________________________________________________________ CUSIP No. 584699102 13G Page 6 of 14 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 | | 28,765 |_____|__________________________________________________________ NUMBER OF | | SHARES | 6 | SHARED VOTING POWER BENEFICIALLY 27,973 OWNED BY |_____|__________________________________________________________ EACH | | REPORTING | 7 | SOLE DISPOSITIVE POWER PERSON WITH | | 28,765 |_____|__________________________________________________________ | | | 8 | SHARED DISPOSITIVE POWER | | 27,973 _______________|_____|__________________________________________________________ 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | 27,973 _______|________________________________________________________________________ 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES | CERTAIN SHARES* [ ] _______|________________________________________________________________________ 11 | PERCENTAGE OF CLASS REPRESENTED BY AMOUNT IN ROW 9 | 0.2% _______|________________________________________________________________________ 12 | TYPE OF REPORTING PERSON* | IN _______|________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! ________________________________________________________________________________ CUSIP No. 584699102 13G Page 7 of 14 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 | | SHARES | 6 | SHARED VOTING POWER BENEFICIALLY 27,973 OWNED BY |_____|__________________________________________________________ EACH | | REPORTING | 7 | SOLE DISPOSITIVE POWER PERSON WITH | | |_____|__________________________________________________________ | | | 8 | SHARED DISPOSITIVE POWER | | 27,973 _______________|_____|__________________________________________________________ 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | 27,973 _______|________________________________________________________________________ 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES | CERTAIN SHARES* [ ] _______|________________________________________________________________________ 11 | PERCENTAGE OF CLASS REPRESENTED BY AMOUNT IN ROW 9 | 0.1% _______|________________________________________________________________________ 12 | TYPE OF REPORTING PERSON* | IN _______|________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! ________________________________________________________________________________ CUSIP No. 584699102 13G Page 8 of 14 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 | | SHARES | 6 | SHARED VOTING POWER BENEFICIALLY 27,973 OWNED BY |_____|__________________________________________________________ EACH | | REPORTING | 7 | SOLE DISPOSITIVE POWER PERSON WITH | | |_____|__________________________________________________________ | | | 8 | SHARED DISPOSITIVE POWER | | 27,973 _______________|_____|__________________________________________________________ 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | 27,973 _______|________________________________________________________________________ 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES | CERTAIN SHARES* [ ] _______|________________________________________________________________________ 11 | PERCENTAGE OF CLASS REPRESENTED BY AMOUNT IN ROW 9 | 0.1% _______|________________________________________________________________________ 12 | TYPE OF REPORTING PERSON* | IN _______|________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! ________________________________________________________________________________ CUSIP No. 584699102 13G Page 9 of 14 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 | | SHARES | 6 | SHARED VOTING POWER BENEFICIALLY 27,973 OWNED BY |_____|__________________________________________________________ EACH | | REPORTING | 7 | SOLE DISPOSITIVE POWER PERSON WITH | | |_____|__________________________________________________________ | | | 8 | SHARED DISPOSITIVE POWER | | 27,973 _______________|_____|__________________________________________________________ 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | 27,973 _______|________________________________________________________________________ 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES | CERTAIN SHARES* [ ] _______|________________________________________________________________________ 11 | PERCENTAGE OF CLASS REPRESENTED BY AMOUNT IN ROW 9 | 0.1% _______|________________________________________________________________________ 12 | TYPE OF REPORTING PERSON* | IN _______|________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! ________________________________________________________________________________ CUSIP No. 584699102 13G Page 10 of 14 Pages ________________________________________________________________________________ Item 1. (a) Name of Issuer: MedImmune, Inc. (b) Address of Issuer's Principal Executive Offices: 35 West Watkins Mill Road Gaithersburg, Maryland 20878 Item 2. (a) Name of Person Filing: HealthCare Ventures I, L.P. ("HCV I"), HealthCare Partners I, L.P. ("HCP I"), HealthCare Ventures II, L.P. ("HCV II"), HealthCare Partners II, L.P. ("HCP II"), 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 I, HCP I, HCV II, HCP II, Dr. Cavanaugh, and Messrs. Werner and Crouse is 44 Nassau Street, Princeton, New Jersey 08542. The business address for Mr. Littlechild is One Kendall Square, Building 300, Cambridge, Massachusetts 02139. (c) Citizenship: HCV I, HCP I, HCV II and HCP II 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 HCP I and HCP II, which are the general partners of HCV I and HCV II, respectively, the record holder of Issuer's securities. ________________________________________________________________________________ CUSIP No. 584699102 13G Page 11 of 14 Pages ________________________________________________________________________________ (e) CUSIP Number: 584699102 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, 1997: HCV I and HCP I beneficially no Shares of the Issuer's securities; HCV II and HCP II beneficially owned 27,973 Shares of Issuer's Common Stock; Messrs. Werner, Littlechild and Crouse beneficially owned 27,973 Shares of Issuer's Common Stock; and Dr. Cavanaugh beneficially owned 56,738 Shares of Issuer's Common Stock. (b) Percent of Class: As of December 31, 1997: the 27,973 Shares of Issuer's securities beneficially owned by HCV II, HCP II and Messrs. Werner, Littlechild and Crouse constitute 0.1% of Issuer's Shares outstanding; and the 56,738 Shares of Issuer's securities beneficially owned by Dr. Cavanaugh constitute 0.2% 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: Dr. Cavanaugh has the sole power to vote or to direct the vote of those shares owned by him. (ii) shared power to vote or to direct the vote: HCV I, HCP I, Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse share the power to vote or direct the vote of those shares owned by HCV I. HCV II, HCP II, Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse share the power to vote or to direct the vote of those shares owned by HCV II. (iii) sole power to dispose or to direct the disposition of: ________________________________________________________________________________ CUSIP No. 584699102 13G Page 12 of 14 Pages ________________________________________________________________________________ Dr. Cavanaugh has the sole power to dispose or to direct the disposition of those shares owned by him. (iv) shared power to dispose of or to direct the disposition of: HCV I, HCP I, Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse share the power to dispose of or direct the disposition of those shares owned by HCV I. HCV II, HCP II, Dr. Cavanaugh and Messrs. Werner, Littlechild and Crouse share the power to dispose of or to direct the disposition of those shares owned by HCV II. 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 [X]. 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. Item 9. Notice of Dissolution of Group: Inapplicable. Item 10. Certification: Inapplicable. ________________________________________________________________________________ CUSIP No. 584699102 13G Page 13 of 14 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 10, 1998 HealthCare Ventures I, L.P., Princeton, New Jersey by its General Partner, HealthCare Partners I, L.P. By: /s/ Jeffrey Steinberg ----------------------------- A General Partner Dated: February 10, 1998 HealthCare Partners I, L.P. Princeton, New Jersey By: /s/ Jeffrey Steinberg ----------------------------- A General Partner Dated: February 10, 1998 HealthCare Ventures II, L.P., Princeton, New Jersey by its General Partner, HealthCare Partners II, L.P. By: /s/ Jeffrey Steinberg ---------------------------- A General Partner Dated: February 10, 1998 HealthCare Partners II, L.P. Princeton, New Jersey By: /s/ Jeffrey Steinberg ----------------------------- A General Partner Dated: February 10, 1998 By: /s/ Jeffrey Steinberg Princeton, New Jersey ----------------------------- James H. Cavanaugh, Ph.D. Dated: February 10, 1998 By: /s/ Jeffrey Steinberg Princeton, New Jersey ----------------------------- Harold R. Werner Dated: February 10, 1998 By: /s/ Jeffrey Steinberg Cambridge, Massachusetts ----------------------------- John W. Littlechild Dated: February 10, 1998 By: /s/ Jeffrey Steinberg Princeton, New Jersey ----------------------------- William Crouse ________________________________________________________________________________ CUSIP No. 584699102 13G Page 14 of 14 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 MedImmune, Inc. and hereby affirm that such Schedule 13G is being filed on behalf of each of the undersigned. Dated: February 10, 1998 HealthCare Ventures I, L.P., Princeton, New Jersey by its General Partner, HealthCare Partners I, L.P. By: /s/ Jeffrey Steinberg ------------------------------- A General Partner Dated: February 10, 1998 HealthCare Partners I, L.P. Princeton, New Jersey By: /s/ Jeffrey Steinberg ------------------------------- A General Partner Dated: February 10, 1998 HealthCare Ventures II, L.P., Princeton, New Jersey by its General Partner, HealthCare Partners II, L.P. By: /s/ Jeffrey Steinberg ------------------------------- A General Partner Dated: February 10, 1998 HealthCare Partners II, L.P. Princeton, New Jersey By: /s/ Jeffrey Steinberg ------------------------------- A General Partner Dated: February 10, 1998 By: /s/ Jeffrey Steinberg Princeton, New Jersey ------------------------------- James H. Cavanaugh, Ph.D. Dated: February 10, 1998 By: /s/ Jeffrey Steinberg Princeton, New Jersey ------------------------------- Harold R. Werner Dated: February 10, 1998 By: /s/ Jeffrey Steinberg Cambridge, Massachusetts ------------------------------- John W. Littlechild Dated: February 10, 1998 By: /s/ Jeffrey Steinberg Princeton, New Jersey ------------------------------- William Crouse -----END PRIVACY-ENHANCED MESSAGE-----