| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Barrett Christopher Ryan Cave | Chief Legal and Business Officer Exhibit 24 - Power of Attorney. | C/O ATAI LIFE SCIENCES US, INC., C/O INDUSTRIOUS NYC, 250 WEST 34TH ST., NEW YORK | /s/ Ryan Barrett | 03 Feb 2026 | 0002087548 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | Stock Option | Award | $0 | +675,000 | $0.000000 | 675,000 | 30 Jan 2026 | Common Stock | 675,000 | $3.76 | Direct | F1 | ||
| transaction | Restricted Stock Units | Award | $0 | +150,000 | $0.000000 | 150,000 | 30 Jan 2026 | Common Stock | 150,000 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | 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. |
| F2 | 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. |
Chief Legal and Business Officer Exhibit 24 - Power of Attorney.