GENTHERM INC

Ticker: THRM CUSIP: 37253A103 Class: COM

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

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

Q4 2014

Shares 600 Value ($000) $22 Avg Close $39.11 Range $32.54 - $45.00

Q3 2014

Shares 3,200 Value ($000) $135 Avg Close $46.97 Range $39.76 - $52.29

Q2 2014

Shares 8,500 Value ($000) $378 Avg Close $39.33 Range $31.93 - $44.89

Q1 2014

Shares 2,400 Value ($000) $83 Avg Close $28.07 Range $22.84 - $34.96

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	600	$22	$39.11	$32.54 - $45.00
Q3 2014	3,200	$135	$46.97	$39.76 - $52.29
Q2 2014	8,500	$378	$39.33	$31.93 - $44.89
Q1 2014	2,400	$83	$28.07	$22.84 - $34.96