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: Nadav Eran (Director)

Holdings (Non-Derivative)

Security	Shares	Ownership
No securities beneficially owned	0	Direct

Footnotes

F1: Dr. Eran Nadav is a TPG Partner. TPG is affiliated with TPG Biotechnology Partners IV, L.P., which holds shares of Series D Convertible Preferred Stock of Collegium Pharmaceutical, Inc. (the "Issuer"), which are convertible into shares of Common Stock, par value $0.001 per share, of the Issuer.

F2: Dr. Nadav disclaims beneficial ownership of all of the securities that are or may be beneficially owned by TPG Biotechnology Partners IV, L.P. or any of its affiliates. Pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), this filing shall not be deemed an admission that Dr. Nadav is, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of any equity securities of the Issuer for purposes of Section 16 of the Exchange Act or otherwise.