-----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, FJYEk1dGYrFG1zkMwVvc2VVvhs0oF8jZ7P3N1BRqJlVkIXMW6xOIipzyg8IoVhwv 1CwureHmPpCjPRPhUKeCGA== 0000950135-99-004869.txt : 19991027 0000950135-99-004869.hdr.sgml : 19991027 ACCESSION NUMBER: 0000950135-99-004869 CONFORMED SUBMISSION TYPE: 424B3 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19991026 FILER: COMPANY DATA: COMPANY CONFORMED NAME: IMMUNOGEN INC CENTRAL INDEX KEY: 0000855654 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 042726691 STATE OF INCORPORATION: MA FISCAL YEAR END: 0630 FILING VALUES: FORM TYPE: 424B3 SEC ACT: SEC FILE NUMBER: 333-31795 FILM NUMBER: 99733769 BUSINESS ADDRESS: STREET 1: 333 PROVIDENCE HIGHWAY CITY: NORWOOD STATE: MA ZIP: 02062 BUSINESS PHONE: 6176619312 MAIL ADDRESS: STREET 1: 333 PROVIDENCE HIGHWAY CITY: NORWOOD STATE: MA ZIP: 02062 424B3 1 PROSPECTUS SUPPLEMENT NO.2 DATED OCTOBER 26, 1999 1 Filed Pursuant to Rule 424(b)(3) REGISTRATION NO. 333-31795 PROSPECTUS SUPPLEMENT NO. 2 DATED OCTOBER 26, 1999 TO THE PROSPECTUS DATED JULY 22, 1997, AS AMENDED BY PROSPECTUS SUPPLEMENT NO. 1 DATED MAY 20, 1999, OF IMMUNOGEN, INC. This Prospectus Supplement No. 2 amends the information in the table under the caption "Selling Stockholders" in the Prospectus dated July 22, 1997, as amended by Prospectus Supplement No. 1 dated May 20, 1999, by deleting the information as to Southbrook International Investments Ltd. as a Selling Stockholder with respect to 1,690,360 shares of ImmunoGen, Inc. Common Stock, $.01 par value per share, and substituting therefor the following information:
Shares Owned Number of Shares Owned Prior to Shares Being After Offering Selling Stockholder Offering Offered Number Percent ------------------- ------------ ------------ ------ ------- Strong River Investments, Inc. 1,591,039 1,591,039 0 0 Trippoak Advisors, Inc. 99,321 99,321 0 0
- ----------------------------------------- This Prospectus Supplement No. 2 should be read in conjunction with the Prospectus dated July 22, 1997, as amended by Prospectus Supplement No. 1 to the Prospectus dated May 20, 1999. Page 1 of 1 -----END PRIVACY-ENHANCED MESSAGE-----