IPG PHOTONICS CORP

Ticker: IPGP CUSIP: 44980X109 Class: Common Stock

GILDER GAGNON HOWE & CO LLC's Holding History (CIK: 0000902464)

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

Q1 2018

Shares 7,258 Value ($000) $1,694 Avg Close $246.76 Range $213.58 - $264.11

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	7,258	$1,694	$246.76	$213.58 - $264.11