MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

Y-Intercept (Hong Kong) Ltd's Holding History (CIK: 0001772875)

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

Q3 2025

Shares 8,244 Value ($000) $1,020 Avg Close $106.31 Range $88.17 - $132.24

Q1 2025

Shares 4,866 Value ($000) $390 Avg Close $100.21 Range $75.89 - $124.28

Q2 2023

Shares 5,585 Value ($000) $604 Avg Close $89.53 Range $77.81 - $108.20

Q4 2021

Shares 4,402 Value ($000) $767 Avg Close $151.09 Range $136.06 - $172.80

Q2 2021

Shares 2,380 Value ($000) $424 Avg Close $175.09 Range $158.98 - $192.11

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	8,244	$1,020	$106.31	$88.17 - $132.24
Q1 2025	4,866	$390	$100.21	$75.89 - $124.28
Q2 2023	5,585	$604	$89.53	$77.81 - $108.20
Q4 2021	4,402	$767	$151.09	$136.06 - $172.80
Q2 2021	2,380	$424	$175.09	$158.98 - $192.11