MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

HGK ASSET MANAGEMENT INC's Holding History (CIK: 0000740272)

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

Q4 2025

Shares 6,310 Value ($000) $1,008 Avg Close $148.21 Range $120.73 - $170.37

Q3 2025

Shares 10,388 Value ($000) $1,286 Avg Close $106.31 Range $88.17 - $132.24

Q2 2025

Shares 3,604 Value ($000) $358 Avg Close $80.86 Range $54.50 - $100.44

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,310	$1,008	$148.21	$120.73 - $170.37
Q3 2025	10,388	$1,286	$106.31	$88.17 - $132.24
Q2 2025	3,604	$358	$80.86	$54.50 - $100.44