​ On February 10, 2026, a class action complaint captioned Christopher Scocco v. uniQure N.V., et al., Case No. 1:26-cv-01124, was filed against us, certain of our executive officers and another party (collectively, “Defendants”) in the United States District Court for the Southern District of New York. The complaint purported to assert claims pursuant to Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and Rule 10b-5 promulgated thereunder, on behalf of a putative class of investors who purchased or otherwise acquired our ordinary shares between September 24, 2025 and October 31, 2025 (the “putative Class Period”). The plaintiff sought to recover damages allegedly caused by purported false and misleading statements and omissions with respect to our Phase I/II study of AMT-130 and the timing of the potential BLA filing for AMT-130. On April 13, 2026, the court appointed the Oklahoma Firefighters Pension and Retirement System as lead plaintiff (the “Lead Plaintiff”). On July 15, 2026, the Lead Plaintiff filed an amended complaint. Like the earlier-filed complaint, the amended complaint purports to assert claims pursuant to Sections 10(b) and 20(a) of the Exchange Act and Rule 10b-5, on behalf of a putative class of investors who purchased or otherwise acquired our ordinary shares during the putative Class Period. Lead Plaintiff seeks unspecified damages allegedly caused by purported false and misleading statements and omissions with respect to the import and viability of data from our Phase I/II study of AMT-130 and available pathways to regulatory approval. Defendants’ motion to dismiss the amended complaint is currently due September 14, 2026. Management intends to vigorously defend against the claims in this action. At each reporting date, we evaluate whether or not a potential loss amount or a potential range of loss is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. We have not recorded any liability for any portion of this matter because we believe that liability is not probable and reasonably estimable at this time. ​ 37 Table of Contents