| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Karnani Vikram | President and CEO, Director | C/O COLLEGIUM PHARMACEUTICAL, INC., 100 TECHNOLOGY CENTER DRIVE, STOUGHTON | /s/ Colleen Tupper as Attorney-In-Fact For Vikram Karnani | 14 Nov 2025 | 0001699488 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | COLL | Common Stock | Tax liability | -$425K | -8.98K | -8.48% | $47.35 | 97K | 12 Nov 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Shares withheld by the Issuer to satisfy applicable withholding taxes upon the vesting of restricted stock units. |