IPG PHOTONICS CORP

Ticker: IPGP CUSIP: 44980X109 Class: Common Stock

SIGMA INVESTMENT COUNSELORS INC's Holding History (CIK: 0001085163)

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

Q3 2017

Shares 2,200 Value ($000) $407 Avg Close $166.10 Range $144.71 - $187.98

Q2 2017

Shares 2,200 Value ($000) $319 Avg Close $134.25 Range $116.82 - $149.29

Q1 2017

Shares 2,200 Value ($000) $266 Avg Close $113.15 Range $95.04 - $124.27

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2017	2,200	$407	$166.10	$144.71 - $187.98
Q2 2017	2,200	$319	$134.25	$116.82 - $149.29
Q1 2017	2,200	$266	$113.15	$95.04 - $124.27