ImmunoGen, Inc.
128 Sidney Street, Cambridge, MA | 02139-4239 | TEL: (617) 995-2500 |
FAX: (617) 995-2510
July 27, 2005
VIA EDGAR
Securities and Exchange Commission
Division of Corporate Finance
100 F Street, NE
Washington, DC 20549
Attn: Filing Desk
RE: ImmunoGen, Inc. AMENDMENT TO FORM 10-K ON FORM 10-K/A FOR THE FISCAL YEAR ENDED JUNE 30, 2004 AND AMENDMENTS TO FORMS 10-Q ON FORMS 10-Q/A FOR THE QUARTERS ENDED SEPTEMBER 30, 2004, DECEMBER 31, 2004 AND MARCH 31, 2005.
FILE NO. 0-17999
Ladies and Gentlemen:
We, ImmunoGen, Inc., are electronically transmitting hereunder a conformed copy of each of the following documents: an Amendment to Form 10-K on Form 10-K/A for the fiscal year ended June 30, 2004 and Amendments to Forms 10-Q on Forms 10-Q/A for the quarters ended September 30, 2004, December 31, 2004 and March 31, 2005.
Our Form 10-K for the fiscal year ended June 30, 2004 was filed with the Securities and Exchange Commission (the “SEC”) on August 20, 2004 and our Forms10-Q for the fiscal quarters ended on September 30, 2004, December 31, 2004 and March 31, 2005 were filed on November 9, 2004, February 9, 2005 and May 6, 2005, respectively. Manually executed signature pages have been executed prior to the time of this electronic filing and will be retained by us for five (5) years.
If you have any questions regarding the foregoing, please do not hesitate to contact me at (617) 995-2500.
Sincerely,
/s/ Karleen M. Oberton |
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Karleen M. Oberton | |
Senior Corporate Controller | |