The Company accounts for its leases under ASC 842, Leases. Effective April 1, 2024, the Company entered into a lease with the Board of Regents, State of Iowa, for lab and office space at the BioVentures Center. The lease terminates in March 2026. Upon entering into this lease, the Company recognized a right-of-use asset and lease liability of approximately $1.1 million on the Condensed Consolidated Balance Sheet based upon the present value of the future base payments discounted at an 8% discount rate using the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment as the lease does not provide an implicit discount rate.

The Company acquired a lease from Progenics, an affiliate of Lantheus, for a production facility in Somerset, NJ effective on March 1, 2024 (see Note 3, Investments and Agreements, in this Form 10-Q). The lease terminates on November 29, 2028. Upon entering into this lease, the Company recognized a right-of-use asset and lease liability of approximately $0.3 million on the Condensed Consolidated Balance Sheet based upon the present value of the future base payments discounted at an 8% discount rate using the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment as the lease does not provide an implicit discount rate.

On August 8, 2024, the Company assumed a lease from Progenics for office space in Somerset, NJ (Office). The lease terminates on November 30, 2028. Upon entering into this lease, the Company recognized a right-of-use asset and lease liability of approximately $0.6 million on the Condensed Consolidated Balance Sheet based upon the present value of the future base payments discounted at an 8% discount rate using the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment as the lease does not provide an implicit discount rate.

Upon assuming the lease, the Company entered into a license and access agreement with Lantheus, which provides access to both dedicated and shared space of the Office (Access Agreement). There is no renewal option, and the termination options are available only for material breaches. In consideration of the Access Agreement, Lantheus agreed to pay base rent and associated costs through December 2024 directly to the landlord. The base rent through December 2024 was less than $0.1 million (Prepaid Rent). Pursuant to ASC 842, Leases, the Access Agreement is a sublease in which the Company is a sublessor and Lantheus is a sublessee. The Company will amortize the Prepaid Rent over the entire lease term of 52 months.

On July 1, 2023, the Company entered into a lease with Unico Properties LLC for office space in Seattle, WA, that terminates in October 2028. Upon entering into this lease, the Company recognized a right-of-use asset and lease liability of approximately $0.8 million on the Condensed Consolidated Balance Sheet based upon the present value of the future base payments discounted at an 8% discount rate using the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment as the lease does not provide an implicit discount rate.

The weighted average remaining term and discount rate for the Company’s operating leases as of June 30, 2025 was 2.8 years and 8%, respectively.

The Company’s operating lease expense was $0.3 million and $0.6 million for the three and six months ended June 30, 2025, respectively, and $0.2 million and $0.3 million for the three and six months ended June 30, 2024, respectively.

Asset Retirement Obligation

The Company had an asset retirement obligation (ARO) associated with the facility it leased in Richland, WA. This lease is included in the GT Medical APA and was assigned to GT Medical upon the GT Medical Closing, which occurred on April 12, 2024. As such, this liability is no longer reported as an ARO in the Company’s condensed consolidated financial statements as of June 30, 2025 and December 31, 2024. However, the Company maintains an estimated liability in its condensed consolidated financial statements related to hazardous waste removal that relates to activities prior to the GT Medical Closing. The Company reduced this reserve by $0.3 million based on an estimate received from the hazardous waste disposal vendor. Accordingly, the estimated liability was $0.2 million and $0.5 million as of June 30, 2025 and December 31, 2024, respectively, and is included within “accounts payable and accrued expenses” in the Condensed Consolidated Balance Sheets. For additional information, see Note 4, Discontinued Operations, in this Form 10-Q.