X0508 4 2026-01-30 0002081043 AtaiBeckley Inc. ATAI 0001860902 Rao Srinivas C/O ATAI LIFE SCIENCES US, INC. C/O INDUSTRIOUS NYC, 250 WEST 34TH ST NEW YORK NY 10119 true See remarks false Stock Option 3.76 2026-01-30 4 A 0 1988000 0 A 2036-01-30 Common Stock 1988000 1988000 D Restricted Stock Units 2026-01-30 4 A 0 442000 0 A Common Stock 442000 442000 D The stock option vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying the option on January 1, 2027 and as to the remaining 75% of the total number of shares in 36 substantially equal monthly installments thereafter. Each restricted stock unit vests (subject to continued service through each such vesting date) as to 25% of the total number of shares underlying such award on January 1, 2027 and as to the remaining 75% of the total number of shares on each of the first three anniversaries of January 1, 2027. Co-Founder and Chief Executive Officer; Exhibit 24 - Power of Attorney. /s/ Ryan Barrett, as attorney in fact 2026-02-03