X0206 3 2026-03-09 1 0002081043 AtaiBeckley Inc. ATAI 0001647141 Faerm Michael E. C/O ATAI LIFE SCIENCES US, INC. C/O INDUSTRIOUS NYC 250 WEST 34TH STREET NEW YORK NY 10119 true Chief Financial Officer Exhibit 24 - Power of Attorney. /s/ Ryan Barrett, as attorney-in-fact 2026-03-13