GRAHAM HLDGS CO

Ticker: GHC CUSIP: 384637104 Class: Common Stock

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

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

Q3 2015

Shares 2,374 Value ($000) $1,370 Avg Close $595.59 Range $510.07 - $650.41

Q2 2015

Shares 1,500 Value ($000) $1,613 Avg Close $568.21 Range $516.59 - $607.95

Q1 2015

Shares 1,400 Value ($000) $1,469 Avg Close $528.21 Range $450.57 - $595.27

Q4 2014

Shares 1,947 Value ($000) $1,682 Avg Close $438.71 Range $361.50 - $511.73

Q3 2014

Shares 2,829 Value ($000) $1,979 Avg Close $381.66 Range $366.57 - $398.94

Q2 2014

Shares 2,047 Value ($000) $1,470 Avg Close $368.14 Range $345.36 - $392.61

Q1 2014

Shares 2,347 Value ($000) $1,652 Avg Close $359.32 Range $325.70 - $396.88

Q4 2013

Shares 1,147 Value ($000) $761 Avg Close $339.79 Range $315.53 - $360.20

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	2,374	$1,370	$595.59	$510.07 - $650.41
Q2 2015	1,500	$1,613	$568.21	$516.59 - $607.95
Q1 2015	1,400	$1,469	$528.21	$450.57 - $595.27
Q4 2014	1,947	$1,682	$438.71	$361.50 - $511.73
Q3 2014	2,829	$1,979	$381.66	$366.57 - $398.94
Q2 2014	2,047	$1,470	$368.14	$345.36 - $392.61
Q1 2014	2,347	$1,652	$359.32	$325.70 - $396.88
Q4 2013	1,147	$761	$339.79	$315.53 - $360.20