MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

Aurora Investment Counsel's Holding History (CIK: 0001316397)

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

Q3 2022

Shares 8,827 Value ($000) $729 Avg Close $100.01 Range $79.23 - $120.27

Q2 2022

Shares 8,805 Value ($000) $904 Avg Close $112.92 Range $94.75 - $148.07

Q1 2022

Shares 8,417 Value ($000) $1,263 Avg Close $150.35 Range $131.30 - $175.09

Q4 2021

Shares 8,472 Value ($000) $1,476 Avg Close $151.09 Range $136.06 - $172.80

Q3 2021

Shares 8,168 Value ($000) $1,233 Avg Close $148.13 Range $133.76 - $168.78

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2022	8,827	$729	$100.01	$79.23 - $120.27
Q2 2022	8,805	$904	$112.92	$94.75 - $148.07
Q1 2022	8,417	$1,263	$150.35	$131.30 - $175.09
Q4 2021	8,472	$1,476	$151.09	$136.06 - $172.80
Q3 2021	8,168	$1,233	$148.13	$133.76 - $168.78