v3.26.1
Prepaid Expenses and Other Current Assets
12 Months Ended
Dec. 31, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Prepaid Expenses and Other Current Assets Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets consisted of the following (in thousands):
December 31,
20252024
UK R&D tax credit$15,387 $20,712 
Prepaid research and development
17,102 11,332 
Prepaid income tax3,434 197 
Other current assets5,580 3,580 
$41,503 $35,821 

For the years ended December 31, 2023 to 2025, the Company is uncertain whether it met the R&D intensity condition and is eligible for the enhanced effective rate due to uncertainties over whether impairments on intercompany loans and investments in subsidiary companies should be taken into account in determining the R&D intensity threshold. This matter is currently under discussion with HMRC and the outcome is unknown. Given the uncertainty over the outcome of the discussions with HMRC, the enhanced R&D credits as a research intensive company have not been reflected in the financial statements. As a result of these discussions the Company recorded a change in estimate for the 2023 claim, which was initially recorded during the first quarter of 2025, of $4.1 million to reduce its receivable for amounts claimed at the enhanced rate. The Company recorded a change in estimate for the 2024 claim, which was initially recorded during the year ended December 31, 2025, of $7.0 million to reduce its receivable for amounts previously claimed at the enhanced rate. If the Company reaches a successful conclusion with HMRC, additional credits of $4.1 million in the year ended December 31, 2023, $7.0 million in the year ended December 31, 2024 and $7.3 million in the year to December 31, 2025 could be claimed.