COLLEGIUM PHARMACEUTICAL, INC — Director's Dealing 2015

May 19, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COLLEGIUM PHARMACEUTICAL, INC (COLL)
CIK: 0001267565
Period of Report: 2015-05-14

Reporting Person: Heffernan Michael Thomas (Director, Chairman, President and CEO)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-05-14	Stock Option (Right to Purchase)	$14.90	A	70193	Acquired	2025-05-14	Common Stock (70193)	Direct

Footnotes

F1: The options vest and become exercisable over a 4-year period commencing on May 14, 2015. Twenty-five percent (25%) of the options vest and become exercisable on May 14, 2016, and the balance of the shares vest in equal monthly installments (rounded up to the nearest whole option) over the remaining three years of the 4-year period.