MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

CAISSE DE DEPOT ET PLACEMENT DU QUEBEC's Holding History (CIK: 0000898286)

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

Q1 2019

Shares 114,000 Value ($000) $10,608 Avg Close $76.40 Range $59.36 - $88.91

Q4 2018

Shares 142,100 Value ($000) $9,181 Avg Close $68.31 Range $53.35 - $77.61

Q3 2018

Shares 114,000 Value ($000) $9,137 Avg Close $86.11 Range $74.38 - $97.19

Q2 2018

Shares 114,000 Value ($000) $10,910 Avg Close $102.60 Range $86.55 - $115.42

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	114,000	$10,608	$76.40	$59.36 - $88.91
Q4 2018	142,100	$9,181	$68.31	$53.35 - $77.61
Q3 2018	114,000	$9,137	$86.11	$74.38 - $97.19
Q2 2018	114,000	$10,910	$102.60	$86.55 - $115.42