IPG PHOTONICS CORP

Ticker: IPGP CUSIP: 44980X109 Class: Common Stock

BRIDGEWAY CAPITAL MANAGEMENT, LLC's Holding History (CIK: 0001107261)

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

Q3 2018

Shares 13,500 Value ($000) $2,107 Avg Close $185.56 Range $153.37 - $243.43

Q2 2018

Shares 35,990 Value ($000) $7,940 Avg Close $236.00 Range $208.72 - $261.77

Q1 2018

Shares 35,990 Value ($000) $8,399 Avg Close $246.76 Range $213.58 - $264.11

Q4 2017

Shares 31,800 Value ($000) $6,809 Avg Close $212.25 Range $185.00 - $248.23

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	13,500	$2,107	$185.56	$153.37 - $243.43
Q2 2018	35,990	$7,940	$236.00	$208.72 - $261.77
Q1 2018	35,990	$8,399	$246.76	$213.58 - $264.11
Q4 2017	31,800	$6,809	$212.25	$185.00 - $248.23