# Delaware Chancery Court Rules in Favor of Anaptys by Dismissing Tesaro’s Anticipatory Breach Claim
Canonical URL: https://biopharmsignal.com/news/ANAB/delaware-chancery-court-rules-in-favor-of-anaptys-by-dismissing-tesaro-s-anticipatory-breach-claim
Ticker: ANAB
Company: AnaptysBio, Inc.
Source: AnaptysBio, Inc.
Published: 2026-04-24 19:40 EST
Original Source URL: https://ir.anaptysbio.com
## Summary

Ruling preserves current contracted royalty rates and rejects Tesaro’s request for any royalty reduction Trial 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) --

## Article Body
Ruling preserves current contracted royalty rates and rejects Tesaro’s request for any royalty reduction Trial 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) --
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