8-K 1 d57427_8k.txt CURRENT REPORT SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ---------------------------- FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) November 12, 2003 REPLIGEN CORPORATION (Exact name of registration as specified in charter) Delaware 0-14656 04-2729386 (State or other (Commission (IRS Employer jurisdiction of File Number) Identification No.) incorporation) 41 Seyon Street, Bldg. 1, Suite 100, Waltham, MA 02453 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code (781) 250-0111 -------------------------------------------------------------- (Former name or former address, if changed since last report.) Item 12. Results of Operations and Financial Condition. On November 12, 2003, Repligen Corporation announced its financial results for the quarter ended September 30, 2003. The full text of the press release issued in connection with the announcement is attached as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Form 8-K and the exhibit attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by specific reference in such a filing. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. Repligen Corporation Dated: November 12, 2003 By: /s/ Walter C. Herlihy --------------------- Walter C. Herlihy President and Chief Executive Officer EXHIBIT INDEX Exhibit No. Exhibit ----------- ------- 99.1 Press Release, dated November 12, 2003