GIBRALTAR INDS INC

Ticker: ROCK CUSIP: 374689107 Class: EQTY

STEVENS CAPITAL MANAGEMENT LP's Holding History (CIK: 0001134813)

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

Q4 2017

Shares 17,537 Value ($000) $579 Avg Close $31.95 Range $29.50 - $34.20

Q3 2017

Shares 29,034 Value ($000) $904 Avg Close $30.18 Range $25.61 - $36.08

Q1 2017

Shares 8,494 Value ($000) $350 Avg Close $41.84 Range $38.55 - $45.05

Q4 2016

Shares 20,911 Value ($000) $871 Avg Close $41.33 Range $34.54 - $48.05

Q3 2016

Shares 8,806 Value ($000) $327 Avg Close $36.62 Range $31.35 - $40.00

Q4 2015

Shares 10,603 Value ($000) $270 Avg Close $23.97 Range $17.79 - $27.89

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	17,537	$579	$31.95	$29.50 - $34.20
Q3 2017	29,034	$904	$30.18	$25.61 - $36.08
Q1 2017	8,494	$350	$41.84	$38.55 - $45.05
Q4 2016	20,911	$871	$41.33	$34.54 - $48.05
Q3 2016	8,806	$327	$36.62	$31.35 - $40.00
Q4 2015	10,603	$270	$23.97	$17.79 - $27.89