MSA SAFETY INC

Ticker: MSA CUSIP: 553498106 Class: Com

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q2 2025

Shares 3,776 Value ($000) $633 Avg Close $156.47 Range $127.86 - $170.11

Q1 2025

Shares 4,436 Value ($000) $651 Avg Close $159.40 Range $146.01 - $167.77

Q2 2020

Shares 2,121 Value ($000) $243 Avg Close $111.17 Range $88.18 - $126.16

Q1 2020

Shares 2,121 Value ($000) $215 Avg Close $125.88 Range $83.57 - $142.34

Q1 2019

Shares 16,200 Value ($000) $1,675 Avg Close $100.71 Range $90.81 - $105.37

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	3,776	$633	$156.47	$127.86 - $170.11
Q1 2025	4,436	$651	$159.40	$146.01 - $167.77
Q2 2020	2,121	$243	$111.17	$88.18 - $126.16
Q1 2020	2,121	$215	$125.88	$83.57 - $142.34
Q1 2019	16,200	$1,675	$100.71	$90.81 - $105.37