CAMBRIDGE, Mass.--(BUSINESS WIRE)--Seres Therapeutics, Inc. (Nasdaq: MCRB), a leading microbiome therapeutics platform company developing a novel class of multifunctional bacterial consortia that are designed to functionally interact with host cells and tissues to treat disease, today announced the closing of an underwritten public offering of 12,075,000 shares of its common stock, at a public offering price of $21.50 per share, before underwriting discounts and commissions, and including the exercise in full of the underwriters’ option to purchase an additional 1,575,000 shares of common stock. The net proceeds from the offering, together with the net proceeds from a substantially concurrent registered direct offering of 959,002 shares of common stock to Société des Produits Nestlé S.A., after deducting underwriting discounts and commissions and estimated offering expenses, are expected to be approximately $263.7 million. All of the shares in the offerings were sold by Seres.

Cowen and Company, LLC and Piper Sandler & Co. acted as joint book-running managers for the underwritten offering. Canaccord Genuity LLC and Oppenheimer & Co. Inc. acted as co-managers.