GRAHAM CORP

Ticker: GHM CUSIP: 384556106 Class: COM

PDT Partners, LLC's Holding History (CIK: 0001564702)

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

Q1 2015

Shares 12,728 Value ($000) $305 Avg Close $20.47 Range $17.67 - $24.79

Q3 2014

Shares 10,190 Value ($000) $293 Avg Close $26.69 Range $24.01 - $30.28

Q4 2013

Shares 6,199 Value ($000) $225 Avg Close $31.44 Range $28.16 - $35.82

Q3 2013

Shares 11,749 Value ($000) $424 Avg Close $28.98 Range $25.82 - $33.24

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2015	12,728	$305	$20.47	$17.67 - $24.79
Q3 2014	10,190	$293	$26.69	$24.01 - $30.28
Q4 2013	6,199	$225	$31.44	$28.16 - $35.82
Q3 2013	11,749	$424	$28.98	$25.82 - $33.24