MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q2 2023

Shares 41,530 Value ($000) $4,489 Avg Close $89.53 Range $77.81 - $108.20

Q2 2020

Shares 41,841 Value ($000) $4,738 Avg Close $95.31 Range $70.45 - $112.06

Q1 2020

Shares 77,766 Value ($000) $6,334 Avg Close $97.84 Range $64.00 - $116.86

Q4 2019

Shares 80,361 Value ($000) $8,841 Avg Close $99.99 Range $81.07 - $109.78

Q3 2019

Shares 66,250 Value ($000) $6,114 Avg Close $78.64 Range $68.69 - $91.29

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2023	41,530	$4,489	$89.53	$77.81 - $108.20
Q2 2020	41,841	$4,738	$95.31	$70.45 - $112.06
Q1 2020	77,766	$6,334	$97.84	$64.00 - $116.86
Q4 2019	80,361	$8,841	$99.99	$81.07 - $109.78
Q3 2019	66,250	$6,114	$78.64	$68.69 - $91.29