TRIMAS CORP

Ticker: TRS CUSIP: 896215209 Class: Common Stock

Grantham, Mayo, Van Otterloo & Co. LLC's Holding History (CIK: 0001352662)

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

Q4 2014

Shares 8,618 Value ($000) $270 Avg Close $23.60 Range $18.87 - $26.48

Q3 2014

Shares 179,309 Value ($000) $4,363 Avg Close $25.91 Range $19.38 - $31.20

Q2 2014

Shares 156,937 Value ($000) $5,984 Avg Close $27.85 Range $24.54 - $30.69

Q1 2014

Shares 154,037 Value ($000) $5,114 Avg Close $28.23 Range $24.49 - $31.81

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	8,618	$270	$23.60	$18.87 - $26.48
Q3 2014	179,309	$4,363	$25.91	$19.38 - $31.20
Q2 2014	156,937	$5,984	$27.85	$24.54 - $30.69
Q1 2014	154,037	$5,114	$28.23	$24.49 - $31.81