License Agreement	3 Months Ended
Jun. 30, 2026
License Agreements [Abstract]
License Agreement	License Agreement On December 19, 2017, Roivant Sciences GmbH (“RSG”), a wholly-owned subsidiary of Roivant Sciences Ltd. (“RSL”), entered into a license agreement (the “HanAll Agreement”) with HanAll Biopharma Co., Ltd. (“HanAll”). Under the HanAll Agreement, RSG received (1) the non-exclusive right to manufacture and (2) the exclusive, royalty-bearing right to develop, import, use and commercialize the antibody referred to as batoclimab and certain back-up and next-generation antibodies (including IMVT-1402), and products containing such antibodies, in the United States of America (the “U.S.”), Canada, Mexico, the European Union, the United Kingdom, Switzerland, the Middle East, North Africa and Latin America (the “Licensed Territory”). In exchange for this license, RSG provided or agreed to provide the following consideration: •Upfront, non-refundable payment of $30.0 million; •Up to $20.0 million in shared (50%) research, development, and out-of-pocket costs incurred by HanAll, which obligation has since expired; •Up to an aggregate of $420.0 million (after an aggregate amount of $32.5 million paid for milestone events achieved as of June 30, 2026) upon the achievement of certain regulatory and sales milestones; and •Tiered royalties ranging from the mid-single digits to mid-teens percentage of net sales of licensed products, subject to standard offsets and reductions, on a product-by-product and country-by-country basis, until the later of (1) expiration of patent and regulatory exclusivity or (2) the 11th anniversary of the first commercial sale of such product in such country. On August 18, 2018, RSG entered into a sublicense agreement (the “Sublicense Agreement”) with Immunovant Sciences GmbH (“ISG”), a wholly-owned subsidiary of the Company, to sublicense this technology, as well as RSG’s know-how and patents necessary for the development, manufacture or commercialization of any compound or product that pertains to immunology. On December 7, 2018, RSG issued a notice to terminate the Sublicense Agreement with ISG and entered into an assignment and assumption agreement to assign to ISG all of the rights, title, interest, and future obligations under the HanAll Agreement from RSG, including all rights to IMVT-1402 and batoclimab in the Licensed Territory, for an aggregate purchase price of $37.8 million. Each party to the HanAll Agreement has agreed that neither it nor certain of its affiliates will clinically develop or commercialize certain competitive products in the Licensed Territory. In January 2026, the Company completed an internal reorganization and transfer of intellectual property rights related to the Company’s product candidates between two wholly-owned subsidiaries of the Company to align with the business operations of the Company. Ownership and rights to such intellectual property remain with the Company and its subsidiaries.

On December 19, 2017, Roivant Sciences GmbH (“RSG”), a wholly-owned subsidiary of Roivant Sciences Ltd. (“RSL”), entered into a license agreement (the “HanAll Agreement”) with HanAll Biopharma Co., Ltd. (“HanAll”). Under the HanAll Agreement, RSG received (1) the non-exclusive right to manufacture and (2) the exclusive, royalty-bearing right to develop, import, use and commercialize the antibody referred to as batoclimab and certain back-up and next-generation antibodies (including IMVT-1402), and products containing such antibodies, in the United States of America (the “U.S.”), Canada, Mexico, the European Union, the United Kingdom, Switzerland, the Middle East, North Africa and Latin America (the “Licensed Territory”).

•Tiered royalties ranging from the mid-single digits to mid-teens percentage of net sales of licensed products, subject to standard offsets and reductions, on a product-by-product and country-by-country basis, until the later of (1) expiration of patent and regulatory exclusivity or (2) the 11th anniversary of the first commercial sale of such product in such country.

On August 18, 2018, RSG entered into a sublicense agreement (the “Sublicense Agreement”) with Immunovant Sciences GmbH (“ISG”), a wholly-owned subsidiary of the Company, to sublicense this technology, as well as RSG’s know-how and patents necessary for the development, manufacture or commercialization of any compound or product that pertains to immunology. On December 7, 2018, RSG issued a notice to terminate the Sublicense Agreement with ISG and entered into an assignment and assumption agreement to assign to ISG all of the rights, title, interest, and future obligations under the HanAll Agreement from RSG, including all rights to IMVT-1402 and batoclimab in the Licensed Territory, for an aggregate purchase price of $37.8 million. Each party to the HanAll Agreement has agreed that neither it nor certain of its affiliates will clinically develop or commercialize certain competitive products in the Licensed Territory. In January 2026, the Company completed an internal reorganization and transfer of intellectual property rights related to the Company’s product candidates between two wholly-owned subsidiaries of the Company to align with the business operations of the Company. Ownership and rights to such intellectual property remain with the Company and its subsidiaries.