Sensei Biotherapeutics Merger Agreement Filed

Sensei Biotherapeutics, Inc. filed an exhibit containing an agreement and plan of merger dated February 17, 2026. The document describes a merger among Sensei Biotherapeutics, a first merger sub (Sapphire First Merger Sub, Inc.), a second merger sub (Sapphire Second Merger Sub, LLC), and Faeth Holdings Therapeutics, Inc. plus Faeth Therapeutics, LLC.

The exhibit outlines merger mechanics including first and second effective times, series B certificate of designation, conversion of shares, and merger consideration terms. It also covers closing conditions, including a parent financing condition and customary closing deliveries and covenants.