COLLEGIUM PHARMACEUTICAL INC

Ticker: COLL CUSIP: 19459J104 Class: Common Stock

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q1 2021

Shares 41,200 Value ($000) $976 Avg Close $23.76 Range $18.76 - $26.91

Q4 2020

Shares 46,000 Value ($000) $921 Avg Close $19.53 Range $17.24 - $22.52

Q3 2020

Shares 53,200 Value ($000) $1,108 Avg Close $18.05 Range $15.66 - $20.90

Q2 2020

Shares 53,200 Value ($000) $931 Avg Close $19.58 Range $15.23 - $24.32

Q1 2020

Shares 54,200 Value ($000) $885 Avg Close $20.64 Range $13.00 - $25.59

Q4 2019

Shares 46,300 Value ($000) $953 Avg Close $16.67 Range $10.43 - $22.28

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	41,200	$976	$23.76	$18.76 - $26.91
Q4 2020	46,000	$921	$19.53	$17.24 - $22.52
Q3 2020	53,200	$1,108	$18.05	$15.66 - $20.90
Q2 2020	53,200	$931	$19.58	$15.23 - $24.32
Q1 2020	54,200	$885	$20.64	$13.00 - $25.59
Q4 2019	46,300	$953	$16.67	$10.43 - $22.28