GAMCO INVESTORS INC

Ticker: GAMI CUSIP: 361438104 Class: COM

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

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

Q3 2014

Shares 4,971 Value ($000) $352 Avg Close $31.63 Range $28.36 - $35.49

Q2 2014

Shares 12,843 Value ($000) $1,067 Avg Close $31.25 Range $28.09 - $34.30

Q1 2014

Shares 8,243 Value ($000) $640 Avg Close $32.65 Range $28.76 - $36.36

Q4 2013

Shares 6,943 Value ($000) $604 Avg Close $30.67 Range $26.81 - $35.62

Q3 2013

Shares 6,800 Value ($000) $516 Avg Close $24.63 Range $20.82 - $30.82

Q2 2013

Shares 6,100 Value ($000) $338 Avg Close $20.86 Range $17.78 - $23.54

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	4,971	$352	$31.63	$28.36 - $35.49
Q2 2014	12,843	$1,067	$31.25	$28.09 - $34.30
Q1 2014	8,243	$640	$32.65	$28.76 - $36.36
Q4 2013	6,943	$604	$30.67	$26.81 - $35.62
Q3 2013	6,800	$516	$24.63	$20.82 - $30.82
Q2 2013	6,100	$338	$20.86	$17.78 - $23.54