MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

Oak Grove Capital LLC's Holding History (CIK: 0001661762)

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

Q3 2018

Shares 280 Value ($000) $22 Avg Close $86.11 Range $74.38 - $97.19

Q2 2018

Shares 280 Value ($000) $27 Avg Close $102.60 Range $86.55 - $115.42

Q1 2018

Shares 280 Value ($000) $32 Avg Close $103.13 Range $88.32 - $120.60

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	280	$22	$86.11	$74.38 - $97.19
Q2 2018	280	$27	$102.60	$86.55 - $115.42
Q1 2018	280	$32	$103.13	$88.32 - $120.60