TRIMAS CORP

Ticker: TRS CUSIP: 896215209 Class: Common Stock

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

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

Q4 2015

Shares 32,500 Value ($000) $606 Avg Close $19.37 Range $15.29 - $22.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	32,500	$606	$19.37	$15.29 - $22.02