COLLEGIUM PHARMACEUTICAL, INC — Director's Dealing 2015

May 6, 2015

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: COLLEGIUM PHARMACEUTICAL, INC (COLL)
CIK: 0001267565
Period of Report: 2015-05-06

Reporting Person: Brannelly Paul (Exec VP & CFO)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	72463	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option (Right to Purchase)	$5.73	2025-03-19	Common Stock (29607)		Direct

Footnotes

F1: 617 options are exercisable. The options vest and become exercisable in equal installments (rounded up to the nearest whole option) on a monthly basis over a 4-year period commencing on March 19, 2015.