Commitments and Contingencies	9 Months Ended
Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	6. Commitments and Contingencies Litigation From time to time, the Company may be involved in various claims and legal proceedings relating to or arising out of the Company’s operations. The Company is not currently a party to any material legal proceedings. On August 5, 2024, the Company filed a complaint in the United States District Court of Delaware against Xencor, Inc. ("Xencor") alleging Xencor is infringing the Company's U.S. Patent Numbers (Nos.) 9,944,965 and 9,358,268, and 11,926,859, related to Xencor's manufacture, use, offer for sale, sale, and/or importation of certain antibodies and antibody technologies and methods in and/or into the United States. The Company is the plaintiff and Xencor is the defendant. As a result of Xencor’s acts, the Company has alleged that the Company has suffered and continues to suffer damages, is entitled to recover from Xencor damages sustained as a result of Xencor's wrongful and infringing acts, and the Company has and will continue to suffer, irreparable harm for which there is no remedy at law. Accordingly, the Company seeks, among other things, damages, equitable remedies, and an award of attorneys' fees. On October 10, 2024, Xencor filed a motion to dismiss under Federal Rule of Civil Procedure 12(b)(6), with further submissions by the parties and proceedings to follow. On August 19, 2022, Kymab Limited ("Kymab"), a subsidiary of Sanofi, filed a notice of opposition against the Company's EP3456190 patent (the "'190 patent"), entitled "Antibody Producing Transgenic Murine Animal," in the European Opposition Division of the European Patent Office (the "EPO"). The notice asserted, as applicable, the '190 patent is contrary to the provision of Article 123(2) EPC, Article 75(1) EPC and Article 100(c) EPC, and alleges the '190 patent lacks novelty and/or is obvious contrary to the provisions of Articles 54 and/or 56 EPC, and Article 100(a) EPC, and that the specification of the '190 patent does not provide sufficient disclosure of the subject matter of the inventions contravening Article 83 EPC and Article 100(b). On January 17, 2023, the Company timely filed a response before the European Opposition Division of the EPO contesting each of these assertions, with further oral proceedings scheduled to follow on January 18, 2024. On June 2, 2023, the European Opposition Division issued a non-binding preliminary decision. On January 18, 2024, the European Opposition Division held oral proceedings addressing each allegation of invalidity raised by Kymab and maintained the '190 patent as granted, and issued a written decision documenting these conclusions on February 16, 2024. In April 2024, Kymab filed a notice of appeal before the Technical Board of Appeals, and Grounds of Appeal on June 17, 2024. The Company filed a response to Kymab's notice of appeal on October 18, 2024, with further submissions by the parties and proceedings to follow. The Company does not expect significant impact on its assets or liabilities as a result of the opposition proceeding.

Commitments and Contingencies

9 Months Ended

Sep. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

6. Commitments and Contingencies

Litigation

From time to time, the Company may be involved in various claims and legal proceedings relating to or arising out of the Company’s operations. The Company is not currently a party to any material legal proceedings.

On August 5, 2024, the Company filed a complaint in the United States District Court of Delaware against Xencor, Inc. ("Xencor") alleging Xencor is infringing the Company's U.S. Patent Numbers (Nos.) 9,944,965 and 9,358,268, and 11,926,859, related to Xencor's manufacture, use, offer for sale, sale, and/or importation of certain antibodies and antibody technologies and methods in and/or into the United States. The Company is the plaintiff and Xencor is the defendant. As a result of Xencor’s acts, the Company has alleged that the Company has suffered and continues to suffer damages, is entitled to recover from Xencor damages sustained as a result of Xencor's wrongful and infringing acts, and the Company has and will continue to suffer, irreparable harm for which there is no remedy at law. Accordingly, the Company seeks, among other things, damages, equitable remedies, and an award of attorneys' fees. On October 10, 2024, Xencor filed a motion to dismiss under Federal Rule of Civil Procedure 12(b)(6), with further submissions by the parties and proceedings to follow.

On August 19, 2022, Kymab Limited ("Kymab"), a subsidiary of Sanofi, filed a notice of opposition against the Company's EP3456190 patent (the "'190 patent"), entitled "Antibody Producing Transgenic Murine Animal," in the European Opposition Division of the European Patent Office (the "EPO"). The notice asserted, as applicable, the '190 patent is contrary to the provision of Article 123(2) EPC, Article 75(1) EPC and Article 100(c) EPC, and alleges the '190 patent lacks novelty and/or is obvious contrary to the provisions of Articles 54 and/or 56 EPC, and Article 100(a) EPC, and that the specification of the '190 patent does not provide

sufficient disclosure of the subject matter of the inventions contravening Article 83 EPC and Article 100(b). On January 17, 2023, the Company timely filed a response before the European Opposition Division of the EPO contesting each of these assertions, with further oral proceedings scheduled to follow on January 18, 2024. On June 2, 2023, the European Opposition Division issued a non-binding preliminary decision. On January 18, 2024, the European Opposition Division held oral proceedings addressing each allegation of invalidity raised by Kymab and maintained the '190 patent as granted, and issued a written decision documenting these conclusions on February 16, 2024. In April 2024, Kymab filed a notice of appeal before the Technical Board of Appeals, and Grounds of Appeal on June 17, 2024. The Company filed a response to Kymab's notice of appeal on October 18, 2024, with further submissions by the parties and proceedings to follow. The Company does not expect significant impact on its assets or liabilities as a result of the opposition proceeding.