| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Khara Rahul | Chief Legal Officer | C/O DISC MEDICINE, INC., 321 ARSENAL STREET, SUITE 101, WATERTOWN | By: /s/ Rahul Khara | 11 Feb 2026 | 0001951850 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IRON | Common Stock | Award | $0 | +17,000 | +45% | $0.000000 | 55,026 | 10 Feb 2026 | Direct | F1, F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | IRON | Stock Option (Right to Buy) | Award | $0 | +25,500 | $0.000000 | 25,500 | 10 Feb 2026 | Common Stock | 25,500 | $74.75 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | Represents restricted stock units ("RSUs"), each representing a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest annually in four 25% installments commencing on February 15, 2027, subject to the Reporting Person's continued service on each such vesting date. |
| F2 | Includes 233 shares purchased pursuant to the Disc Medicine, Inc. Amended and Restated 2021 Employee Stock Purchase Plan on January 30, 2026. |
| F3 | The shares underlying this option vest in 48 equal monthly installments commencing on March 10, 2026, subject to the Reporting Person's continued service on each such vesting date. |