MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

AQR Arbitrage LLC's Holding History (CIK: 0001167456)

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

Q4 2025

Shares 40,090 Value ($000) $6,406 Avg Close $148.21 Range $120.73 - $170.37

Q3 2025

Shares 37,344 Value ($000) $4,589 Avg Close $106.31 Range $88.17 - $132.24

Q2 2025

Shares 33,499 Value ($000) $3,328 Avg Close $80.86 Range $54.50 - $100.44

Q1 2025

Shares 30,200 Value ($000) $2,381 Avg Close $100.21 Range $75.89 - $124.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	40,090	$6,406	$148.21	$120.73 - $170.37
Q3 2025	37,344	$4,589	$106.31	$88.17 - $132.24
Q2 2025	33,499	$3,328	$80.86	$54.50 - $100.44
Q1 2025	30,200	$2,381	$100.21	$75.89 - $124.28