| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Watson David O. | General Counsel | C/O APELLIS PHARMACEUTICALS, INC, 100 FIFTH AVENUE, 3RD FLOOR, WALTHAM | /s/ David Watson | 12 Sep 2025 | 0001657719 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | APLS | Common Stock | Sale | -$523,400 | -20,000 | -29% | $26.17 | 50,136 | 10 Sep 2025 | Indirect Owner (The David O. Watson Irrevocable Trust of 2023) | F1, F2 |
| holding | APLS | Common Stock | 123,730 | 10 Sep 2025 | Direct | ||||||
| holding | APLS | Common Stock | 10,000 | 10 Sep 2025 | Indirect Owner (Custodial Account for minor children) | F3 |
| Id | Content |
|---|---|
| F1 | The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.15 to $26.20, inclusive. The reporting person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price. |
| F2 | The securities are held by The David O. Watson Irrevocable Trust of 2023. William Zorn is the trustee of The David O. Watson Irrevocable Trust of 2023. The reporting person disclaims beneficial ownership over the shares held by The David O. Watson Irrevocable Trust of 2023 except to the extent of his pecuniary interest therein. |
| F3 | This represents a custodial account held by the reporting person for the sole benefit of his minor children. |