ImmunoGen Announces Proposed Public Offering Of Common Stock

Published: Oct 05, 2017

WALTHAM, Mass.--(BUSINESS WIRE)--ImmunoGen, Inc. (NASDAQ: IMGN) today announced that it intends to offer and sell, subject to market and other conditions, 13,000,000 shares of its common stock in an underwritten public offering. ImmunoGen also intends to grant the underwriters a 30-day option to purchase up to an additional fifteen percent (15%) of the shares of common stock offered in the public offering. All of the shares of common stock to be sold in the offering are to be offered by ImmunoGen.

ImmunoGen intends to use the net proceeds of the offering, together with its existing capital, to fund its operations, including, but not limited to, research and development activities, clinical trial activities, manufacturing and supply of drug substance and drug products, commercialization preparation, acquisitions of new technologies, capital expenditures and working capital.

Jefferies, Leerink Partners and RBC Capital Markets are acting as joint book-running managers for the proposed offering. Canaccord Genuity is acting as co-manager for the proposed offering.

The securities described above are being offered by ImmunoGen pursuant to a shelf registration statement that was previously filed with and declared effective by the Securities and Exchange Commission (SEC). 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 preliminary prospectus supplement and accompanying prospectus relating to the offering will be filed with the SEC and will be available on the SEC’s website at www.sec.gov. Copies of the preliminary prospectus supplement, when available, may also be obtained by contacting Jefferies LLC, Attention: Equity Syndicate Prospectus Department, 520 Madison Avenue, 2nd Floor, New York, NY 10022, or by email at Prospectus_Department@Jefferies.com or by phone at (877) 547-6340; Leerink Partners LLC, Attention: Syndicate Department, One Federal Street, 37th Floor, Boston, MA 02110, or by telephone at (800) 808-7525, ext. 6132 or by email at syndicate@leerink.com; or RBC Capital Markets, LLC, 200 Vesey Street, 8th Floor, New York, NY 10281-8098, Attention: Equity Syndicate, or by telephone at (877) 822-4089, or by email at equityprospectus@rbccm.com.

About ImmunoGen

ImmunoGen is a clinical-stage biotechnology company that develops targeted cancer therapeutics using its proprietary antibody-drug conjugate (ADC) technology. The Company’s lead product candidate, mirvetuximab soravtansine, is in a Phase 3 trial for FRa-positive platinum-resistant ovarian cancer, and is in a Phase 1b/2 trial in combination regimens for earlier-stage disease. ImmunoGen has three additional clinical-stage compounds, two of which Jazz Pharmaceuticals has exclusive, worldwide rights to opt into development and commercialization. ImmunoGen’s ADC technology is also used in Roche’s marketed product, Kadcyla® and in programs in development by Amgen, Bayer, Biotest, CytomX, Debiopharm, Lilly, Novartis, Sanofi and Takeda.

Kadcyla® is a registered trademark of Genentech, a member of the Roche Group.

This press release includes forward-looking statements, including statements related to the proposed public offering of securities by ImmunoGen, including the anticipated use of proceeds therefrom. For these statements, ImmunoGen claims the protection of the safe harbor for forward-looking statements provided by the Private Securities Litigation Reform Act of 1995. Various factors could cause actual results to differ materially from those discussed or implied in the forward-looking statements, and you are cautioned not to place undue reliance on these forward-looking statements, which are current only as of the date of this release. Factors that could cause future results to differ materially from such expectations include, but are not limited to: the uncertainties related to market conditions and the completion of the public offering on the anticipated terms or at all, uncertainties inherent in the initiation of future clinical trials and such other factors more fully described in ImmunoGen’s transition report on Form 10-K for the six-month period ended December 31, 2016 and other reports filed with the Securities and Exchange Commission.

For Investors
ImmunoGen, Inc.
Sarah Kiely, 781-895-0600
sarah.kiely@immunogen.com
or
For Media
ImmunoGen, Inc.
Courtney O’Konek, 781-895-0158
courtney.okonek@immunogen.com
or
FTI Consulting, Inc.
Robert Stanislaro, 212-850-5657
robert.stanislaro@fticonsulting.com

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