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 pricing of an underwritten public offering of 10,500,000 shares of its common stock, at a public offering price of $21.50 per share, before underwriting discounts and commissions. Seres also granted the underwriters a 30-day option to purchase up to an additional 1,575,000 shares of its common stock on the same terms and conditions. The gross proceeds from the offering, together with the gross proceeds from a registered offering of 959,002 shares of common stock to Société des Produits Nestlé S.A., before deducting underwriting discounts and commissions and estimated offering expenses, are expected to be approximately $245.7 million, excluding any exercise of the underwriters’ option to purchase additional shares. All of the shares in the offering are to be sold by Seres.

Cowen and Company, LLC and Piper Sandler & Co. are acting as joint book-running managers for the offering. Canaccord Genuity LLC and Oppenheimer & Co. Inc. are acting as co-managers. The offering is expected to close on or about August 17, 2020, subject to customary closing conditions.

Seres intends to use the net proceeds from the offering, in addition to its existing cash resources, to advance the clinical development of its product candidates, for commercialization and manufacturing activities and for other general corporate and working capital purposes.