GREATBATCH INC

CUSIP: 39153L106 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2014
Shares 381 Value ($000) $19 Avg Close — Range —
Q3 2014
Shares 752 Value ($000) $32 Avg Close — Range —
Q2 2014
Shares 240 Value ($000) $12 Avg Close — Range —
Q3 2013
Shares 2,039 Value ($000) $69 Avg Close — Range —
Q2 2013
Shares 320 Value ($000) $10 Avg Close — Range —