MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

Horizon Investments, LLC's Holding History (CIK: 0001560717)

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

Q4 2025

Shares 7,136 Value ($000) $1,140 Avg Close $148.21 Range $120.73 - $170.37

Q3 2025

Shares 5,666 Value ($000) $701 Avg Close $106.31 Range $88.17 - $132.24

Q2 2025

Shares 6,149 Value ($000) $611 Avg Close $80.86 Range $54.50 - $100.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	7,136	$1,140	$148.21	$120.73 - $170.37
Q3 2025	5,666	$701	$106.31	$88.17 - $132.24
Q2 2025	6,149	$611	$80.86	$54.50 - $100.44