0001140361-11-019816.txt : 20110331 0001140361-11-019816.hdr.sgml : 20110331 20110331173624 ACCESSION NUMBER: 0001140361-11-019816 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20110330 FILED AS OF DATE: 20110331 DATE AS OF CHANGE: 20110331 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: HERLIHY WALTER C CENTRAL INDEX KEY: 0001241029 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-14656 FILM NUMBER: 11727833 MAIL ADDRESS: STREET 1: C/O REPLIGEN CORP 41 STREET 2: SEYON ST. BUILDING 1, SUITE 100 CITY: WALTHAM STATE: MA ZIP: 02453 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: REPLIGEN CORP CENTRAL INDEX KEY: 0000730272 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 042729386 STATE OF INCORPORATION: DE FISCAL YEAR END: 0331 BUSINESS ADDRESS: STREET 1: 41 SEYON STREET STREET 2: BUILDING 1, SUITE 100 CITY: WALTHAM STATE: MA ZIP: 02453 BUSINESS PHONE: 7814499560 MAIL ADDRESS: STREET 1: 41 SEYON STREET STREET 2: BUILDING 1, SUITE 100 CITY: WALTHAM STATE: MA ZIP: 02453 4 1 doc1.xml FORM 4 X0303 4 2011-03-30 0 0000730272 REPLIGEN CORP RGEN 0001241029 HERLIHY WALTER C C/O REPLIGEN CORPORATION 41 SEYON STREET SUITE 100, BUILDING 1 WALTHAM MA 02453 1 1 0 0 PRESIDENT, CEO Stock Option (Right to Buy) 2.66 2011-03-30 4 D 0 50000 1.04 D 2006-04-03 2011-04-03 Common Stock 50000 0 D The option was cancelled by mutual agreement of the Rporting Person and the Issuer in advance of its scheduled expiration date. The Reporting Person received the difference between $3.70, the closing price of the ISsuer's Common Stock on the transaction date, and $2.66, the exercise price of the stock option, less any applicable withholding taxes. William J. Kelly (Attorney in Fact) 2011-03-31