Delaware court dismisses Tesaro breach claim against Anaptys

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Delaware Chancery Court Rules in Favor of Anaptys by Dismissing Tesaro’s Anticipatory Breach Claim

April 24, 2026 3:40 PM EDT

Ruling preserves current contracted royalty rates and rejects Tesaros request for any royalty reductionTrial to adjudicate Anaptys contract claims and right to seek reversion of Jemperli against Tesaro/GSK is scheduled for July 14-17, 2026

SAN DIEGO, April 24, 2026 (GLOBE NEWSWIRE) -- AnaptysBio, Inc. (Nasdaq: ANAB), a company focused on managing the financial collaborations for Jemperli with GSK and imsidolimab with Vanda, today announced that the Delaware Chancery Court has dismissed Tesaros anticipatory breach of contract claim against... More