News

September 29, 2008
ImmunoGen, Inc. to Present at Upcoming Investor Conferences

WALTHAM, Mass.--(BUSINESS WIRE)--

ImmunoGen, Inc. (Nasdaq: IMGN) announced today that the Company will be presenting at two investor conferences next week. The presentations will be webcast live by the conference organizers and can be accessed through the "Investor Information" section of the ImmunoGen website, http://www.immunogen.com. Following the live webcasts, a replay of each presentation will be available at the same location until October 14, 2008.

    The Third Annual JMP Securities Healthcare Focus Conference
    --  Presentation Date and Time: Monday, October 6, 2008 at 3:00 pm
        ET.
    --  Conference location: Le Parker Meridien hotel in New York
        City.

William Blair & Company L.L.C.'s 2008 Annual Small-Cap Growth Stock Conference

    --  Presentation Date and Time: Tuesday, October 7, 2008 at 12:40
        pm ET.
    --  Conference location: Waldorf=Astoria hotel in New York City.
    About ImmunoGen, Inc.

ImmunoGen, Inc. develops targeted anticancer therapeutics using its expertise in cancer biology, monoclonal antibodies and the creation and attachment of potent cell-killing agents. The Company's Tumor-Activated Produg (TAP) technology uses antibodies to deliver one of ImmunoGen's proprietary cell-killing agents specifically to cancer targets. In addition to the Company's proprietary clinical pipeline, ImmunoGen collaborators Genentech, sanofi-aventis, Biogen Idec, and Biotest also are testing TAP compounds in the clinic, and a naked antibody is in clinical trials through the Company's collaboration with sanofi-aventis.

Source: ImmunoGen, Inc.

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