| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Garland Jason K | CFO | C/O REPLIGEN CORPORATION, 41 SEYON ST., BLDG 1, STE 100, WALTHAM | /s/ Jennifer Carmichael (Attorney in Fact) | 03 Mar 2026 | 0001754555 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | RGEN | Common Stock | Tax liability | $42,095 | -327 | -2.4% | $128.73 | 13,056 | 27 Feb 2026 | Direct | F1 |
| transaction | RGEN | Common Stock | Tax liability | $89,354 | -715 | -5.5% | $124.97 | 12,341 | 02 Mar 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations of the reporting person that arose upon the release of restricted stock units. |