MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

IEQ CAPITAL, LLC's Holding History (CIK: 0001779789)

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

Q4 2025

Shares 11,907 Value ($000) $1,903 Avg Close $148.21 Range $120.73 - $170.37

Q3 2025

Shares 19,270 Value ($000) $2,385 Avg Close $106.31 Range $88.17 - $132.24

Q2 2025

Shares 2,286 Value ($000) $227 Avg Close $80.86 Range $54.50 - $100.44

Q1 2022

Shares 1,721 Value ($000) $258 Avg Close $150.35 Range $131.30 - $175.09

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,907	$1,903	$148.21	$120.73 - $170.37
Q3 2025	19,270	$2,385	$106.31	$88.17 - $132.24
Q2 2025	2,286	$227	$80.86	$54.50 - $100.44
Q1 2022	1,721	$258	$150.35	$131.30 - $175.09