| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| LaCascia Michael | Chief Legal Officer | 99 COOLIDGE AVENUE, SUITE 500, WATERTOWN | /s/Samantha Macina, as attorney in fact for Michael LaCascia | 02 Feb 2026 | 0001831755 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FHTX | Stock option (right to buy) | Award | $1,684,450 | +295,000 | $5.71 | 295,000 | 30 Jan 2026 | Common Stock | 295,000 | $5.71 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The option vests as to 25% of the underlying shares of common stock on January 30, 2027, and thereafter at a rate of 6.25% of the underlying shares on the first day of each calendar quarter. |