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: SANTINI GINO (Director)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	23188	Direct

Footnotes

F1: Mr. Santini was awarded 10,869 shares of restricted common stock on March 5, 2014. Of the 10,869 shares of restricted common stock, 5,434 shares were subject to forfeiture until vested. The restricted shares vest and become non-forfeitable as follows: 1,811 of the restricted shares vested on April 1, 2014, and thereafter an additional 1,811 vest at the end of each quarterly period following April 1, 2014. Pursuant to Mr. Santini's restricted stock award agreement, the shares will immediately become fully vested upon the occurrence of a "Sale Event" (as defined in the restricted stock award agreement).