ImmunoGen Announces Closing of Public Offering and Full Exercise of Underwriters’ Option to Purchase Additional Shares

On January 27, 2020 ImmunoGen, Inc., (Nasdaq: IMGN), a leader in the expanding field of antibody-drug conjugates (ADCs) for the treatment of cancer, reported the closing of its previously announced underwritten public offering of 24,523,750 shares of its common stock at a price of $4.25 per share, which included the exercise in full by the underwriters of their option to purchase up to 3,198,750 additional shares of common stock (Press release, ImmunoGen, JAN 27, 2020, View Source [SID1234553568]). ImmunoGen received total gross proceeds from the offering (before deducting the underwriting discounts and offering expenses) of $104.2 million.

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ImmunoGen intends to use the net proceeds of the offering, together with its existing capital, to fund its operations, including, but not limited to, clinical trial activities, supply of drug substance and drug product, pre-commercialization activities, capital expenditures, and working capital.

Jefferies, Cowen and William Blair acted joint book-running managers for the offering.

The securities described above were offered by ImmunoGen pursuant to a shelf registration statement that was previously filed with the Securities and Exchange Commission (SEC) and became effective upon filing. This press release does not constitute an offer to sell or a solicitation of an offer to buy the securities in this offering, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction. A final prospectus supplement and accompanying prospectus relating to the offering was filed with the SEC and is available on the SEC’s website at www.sec.gov. Copies of the final prospectus supplement may be obtained by contacting Jefferies LLC, Attention: Equity Syndicate Prospectus Department, 520 Madison Avenue, 2nd Floor, New York, NY 10022, by e-mail at [email protected] or by telephone at (877) 821-7388; Cowen and Company, LLC c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY,11717, Attn: Prospectus Department, by email at [email protected] or by telephone at (833) 297-2926; or William Blair & Company, L.L.C., Attention: Prospectus Department, 150 North Riverside Plaza, Chicago, IL 60606, by e-mail at [email protected] or by telephone at (800) 621-0687.