Rapport Announces Proposed Public Offerings of Common Stock and Convertible Notes as well as Concurrent Private Placement

BOSTON and SAN DIEGO, Oct. 27, 2026 (GLOBE NEWSWIRE) -- Rapport Therapeutics, Inc. (Nasdaq: RAPP) (“Rapport” or the “Company”), a clinical-stage biotechnology company dedicated to the discovery and development of small molecule precision medicines for patients with neurological or psychiatric disorders, today announced that it has commenced separate underwritten public offerings of $200.0 million of shares of its common stock (the “common stock offering”) and $150.0 million aggregate principal amount of convertible senior notes due 2032 (the “notes offering” and together with the common stock offering, the “underwritten offerings”). In addition, Rapport intends to grant the underwriters in the common stock offering a 30-day option to purchase up to an additional $30.0 million of shares of its common stock under the same terms and conditions and intends to grant the underwriters a 30-day option to purchase up to an additional $22.5 million aggregate principal amount of notes solely to cover over-allotments, if any. Concurrently with the underwritten offerings, Rapport intends to enter into a share purchase agreement with a certain investor named therein (the “Investor”), in a separately negotiated transaction (the “concurrent private placement” and together with the underwritten offerings, the “offerings”) pursuant to which Rapport intends to offer and sell, and the Investor intends to purchase shares of Rapport’s common stock at the price per share of common stock in the common stock offering. The sale of shares to the Investor in the proposed concurrent private placement will not be registered as part of the common stock offering. The proposed offerings are subject to market and other conditions, and there can be no assurance as to whether or when the offerings may be completed, or as to the actual size or terms of the offerings.