Atomico Advisors IV, Ltd. Reduces Stake in Hinge Health, Inc. Below 5% Threshold

Atomico Advisors IV, Ltd., along with affiliated entities Atomico IV, L.P. and Atomico IV (Guernsey), L.P., filed an amendment to their Schedule 13G regarding their holdings in Hinge Health, Inc. (HNGE). As of the event date on April 17, 2026, the reporting persons collectively hold 2,300,000 shares of Class A Common Stock, representing a 2.88% ownership stake in the company. This filing indicates a decrease in ownership below the 5% reporting threshold, as the reporting persons have checked the box in Item 5 signifying they have ceased to be the beneficial owners of more than five percent of the class of securities. The 2,300,000 shares consist of 1,876,570 shares held by Atomico IV L.P. and 423,430 shares held by Atomico IV (Guernsey), L.P., both of which are subject to share collar contracts dated December 8, 2025. Atomico Advisors IV, Ltd. serves as the general partner for both holding entities, maintaining shared voting and dispositive power over the reported shares.