Commitments and Contingencies	3 Months Ended
Jun. 30, 2025
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note 11—Commitments and Contingencies (A) Commitments Lease Commitments The Company has leases, consisting primarily of real estate leases. Refer to Note 11, “Leases” in the Company’s Annual Report on Form 10-K for the year ended March 31, 2025 for further information regarding the Company’s lease commitments. Other Commitments The Company has entered into commitments under various asset acquisition and license agreements. Under these agreements, the Company is required to make milestone payments upon successful completion and achievement of certain development, regulatory and commercial milestones. The payment obligations under the asset acquisition and license agreements are contingent upon future events, such as the achievement of specified development, regulatory and commercial milestones, and the Company will be required to make milestone payments and royalty payments in connection with the sale of products developed under these agreements. Refer to Note 12, “Commitments and Contingencies” in the Company’s Annual Report on Form 10-K for the year ended March 31, 2025 for further information regarding certain key asset acquisition and license agreements. There have been no material changes to the key asset acquisition and license agreements relating to continuing operations during the three months ended June 30, 2025. The Company has further commitments relating to other asset acquisition and license agreements that it has entered into and expects to enter into additional asset acquisition and license agreements in the future, which may require upfront payments and long-term commitments of capital resources. Additionally, the Company enters into agreements with contract service providers to assist in the performance of its research and development activities. Expenditures to contract research organizations and contract manufacturing organizations represent significant costs in the clinical development of its product candidates. Subject to required notice periods and certain obligations under binding purchase orders, the Company can elect to discontinue the work under these agreements at any time. The Company expects to enter into additional collaborative research, contract research, manufacturing, and supplier agreements in the future, which may require upfront payments and long-term commitments of capital resources. In November 2021, the Company’s subsidiary, Immunovant, entered into a Product Service Agreement (“PSA”) with Samsung Biologics Co., Ltd. (“Samsung”), pursuant to which Samsung will manufacture and supply Immunovant with batoclimab drug substance for commercial sale, if approved, and perform other manufacturing-related services with respect to batoclimab. Upon execution of the PSA, Immunovant committed to purchase process performance qualification batches of batoclimab and pre-approval inspection batches of batoclimab which may be used for regulatory submissions and, pending regulatory approval, commercial sale. In addition, Immunovant has a minimum obligation to purchase further batches of batoclimab in the four-year period of 2026 through 2029. As of June 30, 2025, the remaining minimum purchase commitment related to this agreement was estimated to be approximately $43.1 million. (B) Loss Contingencies The Company may be, from time to time, a party to various disputes and claims arising from normal business activities. The Company accrues for loss contingencies when available information indicates that it is probable that a liability has been incurred and the amount of such loss can be reasonably estimated, and if the Company believes that a reasonably possible loss exists, the Company discloses the facts and circumstances of the litigation or claim, including an estimable range, if possible. (C) Indemnification Agreements The Company is a party to a number of agreements entered into in the ordinary course of business that contain typical provisions that obligate the Company to indemnify the other parties to such agreements upon the occurrence of certain events. The aggregate maximum potential future liability of the Company under such indemnification provisions is uncertain. The Company also indemnifies each of its directors and officers for certain events or occurrences, subject to certain limits. The maximum amount of potential future indemnification is unlimited; however, the Company currently maintains director and officer liability insurance, which may cover certain liabilities arising from the Company’s obligation to indemnify its directors and officers. To date, the Company has not incurred any material costs related to these indemnification obligations and has not accrued any liabilities related to such obligations in the accompanying condensed consolidated financial statements as of June 30, 2025 and March 31, 2025.

The Company has entered into commitments under various asset acquisition and license agreements. Under these agreements, the Company is required to make milestone payments upon successful completion and achievement of certain development, regulatory and commercial milestones. The payment obligations under the asset acquisition and license agreements are contingent upon future events, such as the achievement of specified development, regulatory and commercial milestones, and the Company will be required to make milestone payments and royalty payments in connection with the sale of products developed under these agreements. Refer to Note 12, “Commitments and Contingencies” in the Company’s Annual Report on Form 10-K for the year ended March 31, 2025 for further information regarding certain key asset acquisition and license agreements. There have been no material changes to the key asset acquisition and license agreements relating to continuing operations during the three months ended June 30, 2025. The Company has further commitments relating to other asset acquisition and license agreements that it has entered into and expects to enter into additional asset acquisition and license agreements in the future, which may require upfront payments and long-term commitments of capital resources.

Additionally, the Company enters into agreements with contract service providers to assist in the performance of its research and development activities. Expenditures to contract research organizations and contract manufacturing organizations represent significant costs in the clinical development of its product candidates. Subject to required notice periods and certain obligations under binding purchase orders, the Company can elect to discontinue the work under these agreements at any time. The Company expects to enter into additional collaborative research, contract research, manufacturing, and supplier agreements in the future, which may require upfront payments and long-term commitments of capital resources.

In November 2021, the Company’s subsidiary, Immunovant, entered into a Product Service Agreement (“PSA”) with Samsung Biologics Co., Ltd. (“Samsung”), pursuant to which Samsung will manufacture and supply Immunovant with batoclimab drug substance for commercial sale, if approved, and perform other manufacturing-related services with respect to batoclimab. Upon execution of the PSA, Immunovant committed to purchase process performance qualification batches of batoclimab and pre-approval inspection batches of batoclimab which may be used for regulatory submissions and, pending regulatory approval, commercial sale. In addition, Immunovant has a minimum obligation to purchase further batches of batoclimab in the four-year period of 2026 through 2029. As of June 30, 2025, the remaining minimum purchase commitment related to this agreement was estimated to be approximately $43.1 million.

The Company may be, from time to time, a party to various disputes and claims arising from normal business activities. The Company accrues for loss contingencies when available information indicates that it is probable that a liability has been incurred and the amount of such loss can be reasonably estimated, and if the Company believes that a reasonably possible loss exists, the Company discloses the facts and circumstances of the litigation or claim, including an estimable range, if possible.

The Company is a party to a number of agreements entered into in the ordinary course of business that contain typical provisions that obligate the Company to indemnify the other parties to such agreements upon the occurrence of certain events. The aggregate maximum potential future liability of the Company under such indemnification provisions is uncertain. The Company also indemnifies each of its directors and officers for certain events or occurrences, subject to certain limits. The maximum amount of potential future indemnification is unlimited; however, the Company currently maintains director and officer liability insurance, which may cover certain liabilities arising from the Company’s obligation to indemnify its directors and officers. To date, the Company has not incurred any material costs related to these indemnification obligations and has not accrued any liabilities related to such obligations in the accompanying condensed consolidated financial statements as of June 30, 2025 and March 31, 2025.