COLLEGIUM PHARMACEUTICAL INC

Ticker: COLL CUSIP: 19459J104 Class: Common Stock

EcoR1 Capital, LLC's Holding History (CIK: 0001587114)

Note: Option positions (PUT/CALL) are excluded.

Q2 2016

Shares 281,776 Value ($000) $3,339 Avg Close $16.52 Range $11.55 - $20.03

Q1 2016

Shares 473,123 Value ($000) $8,587 Avg Close $18.18 Range $13.80 - $28.47

Q4 2015

Shares 465,118 Value ($000) $12,791 Avg Close $21.07 Range $15.51 - $30.58

Q3 2015

Shares 465,118 Value ($000) $10,284 Avg Close $18.01 Range $12.58 - $24.88

Q2 2015

Shares 465,118 Value ($000) $8,298 Avg Close $17.29 Range $11.92 - $20.62

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2016	281,776	$3,339	$16.52	$11.55 - $20.03
Q1 2016	473,123	$8,587	$18.18	$13.80 - $28.47
Q4 2015	465,118	$12,791	$21.07	$15.51 - $30.58
Q3 2015	465,118	$10,284	$18.01	$12.58 - $24.88
Q2 2015	465,118	$8,298	$17.29	$11.92 - $20.62