MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

Laurion Capital Management LP's Holding History (CIK: 0001390202)

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

Q3 2021

Shares 65,000 Value ($000) $9,809 Avg Close $148.13 Range $133.76 - $168.78

Q2 2020

Shares 4,456 Value ($000) $505 Avg Close $95.31 Range $70.45 - $112.06

Q2 2018

Shares 5,128 Value ($000) $491 Avg Close $102.60 Range $86.55 - $115.42

Q1 2018

Shares 3,309 Value ($000) $383 Avg Close $103.13 Range $88.32 - $120.60

Q4 2017

Shares 24,900 Value ($000) $2,353 Avg Close $93.43 Range $82.69 - $103.63

Q3 2017

Shares 12,600 Value ($000) $1,190 Avg Close $76.52 Range $62.45 - $89.48

Q2 2017

Shares 7,800 Value ($000) $525 Avg Close $70.74 Range $60.40 - $82.65

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2021	65,000	$9,809	$148.13	$133.76 - $168.78
Q2 2020	4,456	$505	$95.31	$70.45 - $112.06
Q2 2018	5,128	$491	$102.60	$86.55 - $115.42
Q1 2018	3,309	$383	$103.13	$88.32 - $120.60
Q4 2017	24,900	$2,353	$93.43	$82.69 - $103.63
Q3 2017	12,600	$1,190	$76.52	$62.45 - $89.48
Q2 2017	7,800	$525	$70.74	$60.40 - $82.65