BeOne Medicines Ltd.

From time to time, we may become involved in legal proceedings or be subject to claims of a nature considered ordinary course in our business, including the intellectual property litigation described herein. Most of the issues raised by such claims are highly complex and subject to substantial uncertainties. For a description of risks relating to these legal proceedings, see “Part II—Item 1A—Risk Factors” of this Quarterly Report, including the discussion under the heading entitled “Risks Related to Our Intellectual Property.” The outcome of any such proceedings, regardless of the merits, is inherently uncertain; therefore, assessing the likelihood of loss and any estimated damages is difficult and subject to considerable judgment. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

Pharmacyclics Litigation

On June 13, 2023, Pharmacyclics LLC (“Pharmacyclics”) filed a complaint in the U.S. District Court for the District of Delaware (the “Court”) against the Company and its subsidiary, BeiGene USA, Inc., which subsequently changed its name to BeOne Medicines USA, Inc., alleging that BRUKINSA infringes Pharmacyclics’ U.S Patent No. 11,672,803 issued on June 13, 2023 (the “‘803 patent”). Pharmacyclics seeks a declaration of infringement, unspecified monetary damages and other relief.

On October 12, 2023, the Court entered a joint stipulation filed by the parties to stay the infringement suit pending resolution of a petition for post-grant review (“PGR”) of the ‘803 Patent with the U.S. Patent and Trademark Office (the “USPTO”) that was later filed by the Company on November 1, 2023. On May 1, 2024, the USPTO granted the Company’s PGR petition. On April 29, 2025, the USPTO issued a Final Written Decision (“FWD”) that invalidated all challenged claims of the ‘803 patent. On May 29, 2025, Pharmacyclics filed a request for Director Review of the USPTO’s FWD. On July 17, 2025, the USPTO denied Pharmacyclics’ request. Pharmacyclics did not appeal the USPTO’s FWD and Director Review decision. On September 30, 2025, the parties filed a joint stipulation with the Court to dismiss the infringement suit.

AbbVie Litigation

On September 6, 2024, AbbVie Inc. filed a complaint in the U.S. District Court for the Northern District of Illinois against the Company, one of its wholly-owned subsidiaries and an individual scientist, alleging misappropriation of trade secrets concerning the Company’s Bruton’s tyrosine kinase (“BTK”) degrader program, including the lead compound, BGB-16673. The complaint seeks an unspecified amount of monetary damages, declaratory judgment, restitution and other equitable remedies. The Company is vigorously defending against the claims and filed a motion to dismiss the complaint in its entirety on December 19, 2024.