| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MacBeath Gavin | Chief Executive Officer, Director | C/O TSCAN THERAPEUTICS, INC., 830 WINTER STREET, WALTHAM | /s/ Zoran Zdraveski, Attorney-in-Fact | 22 Jan 2026 | 0001738082 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | TCRX | Stock Option (Right to Buy) | Award | $0 | +1,165,000 | $0.000000 | 1,165,000 | 20 Jan 2026 | Voting Common Stock | 1,165,000 | $1.12 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The shares subject to this option shall vest and become exercisable with respect to 25% of the shares on the one-year anniversary of January 20, 2026, with the balance vesting thereafter in equal monthly installments over the next 36 months, subject to the Reporting Person's continued service to the Issuer on each vesting date. |
Exhibit List - Exhibit 24 - Power of Attorney