X0609 4 2026-04-08 0002081043 AtaiBeckley Inc. ATAI 0001845872 Angermayer Christian true 66 & 67, BEATRICE, AMERY STREET SLIEMA O1 SLM1707 MALTA true true 0001845711 Apeiron Investment Group Ltd. true 66 & 67 AMERY STREET SILEMA O1 SLM1707 MALTA true false Common Stock 2026-04-08 4 M 0 46070 1.88 A 46070 D Common Stock 2026-04-08 4 M 0 410162 1.64 A 456232 D Common Stock 2026-04-08 4 M 0 103000 1.34 A 559232 D Common Stock 53412414 I By Apeiron Investment Group Ltd. Common Stock 1799302 I By Apeiron Presight Capital Fund II, L.P. Stock Option 1.88 2026-04-08 4 M 0 46070 0 D 2033-05-23 Common Stock 46070 17930 D Stock Option 1.64 2026-04-08 4 M 0 410162 0 D 2034-01-05 Common Stock 410162 231838 D Stock Option 1.34 2026-04-08 4 M 0 103000 0 D 2034-06-13 Common Stock 103000 0 D Represents shares acquired upon exercise of options and held by the Reporting Person. The stock option is fully vested and exercisable. The stock option vested with respect to 25% of the shares on January 5, 2025, and will vest with respect to the remaining shares in 36 monthly installments thereafter. Apeiron Investment Group Ltd. By: /s/ Mario Frendo, Director 2026-04-10 /s/ Christian Angermayer 2026-04-10