MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

Pier Capital, LLC's Holding History (CIK: 0001310051)

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

Q2 2017

Shares 71,148 Value ($000) $4,788 Avg Close $70.74 Range $60.40 - $82.65

Q1 2017

Shares 90,104 Value ($000) $6,195 Avg Close $61.31 Range $54.85 - $65.67

Q4 2016

Shares 110,715 Value ($000) $6,576 Avg Close $50.13 Range $43.15 - $57.04

Q3 2016

Shares 117,485 Value ($000) $5,843 Avg Close $43.66 Range $38.22 - $50.60

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	71,148	$4,788	$70.74	$60.40 - $82.65
Q1 2017	90,104	$6,195	$61.31	$54.85 - $65.67
Q4 2016	110,715	$6,576	$50.13	$43.15 - $57.04
Q3 2016	117,485	$5,843	$43.66	$38.22 - $50.60