COLLEGIUM PHARMACEUTICAL, INC — Director's Dealing 2026

Feb 12, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COLLEGIUM PHARMACEUTICAL, INC (COLL)
CIK: 0001267565
Period of Report: 2026-02-10

Reporting Person: Dieter David (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-10	Common Stock	A	22194	—	Acquired	91047	Direct
2026-02-10	Common Stock	A	9005	—	Acquired	100052	Direct
2026-02-10	Common Stock	F	2781	$46.75	Disposed	97271	Direct

Footnotes

F1: Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. One-third (33%) of the RSUs shall vest on February 10, 2027, with the balance of the RSUs vesting in equal annual installments over the following two-year period, subject to the Reporting Person's continued service with the Issuer. The RSUs will be settled on each applicable vesting date in shares of the Issuer's common stock.

F2: Includes 404 shares acquired on January 16, 2026 under the Issuer's employee stock purchase plan.

F3: Effective February 10, 2026, the Compensation Committee of the Board of Directors of the Issuer determined that performance-vesting criteria were met with regard to an aggregate of 9,005 performance share units ("PSUs") granted in the Issuer's 2025 fiscal year.

F4: Shares withheld by the Issuer to satisfy applicable withholding taxes upon the vesting of PSUs.