MSA SAFETY INC

Ticker: MSA CUSIP: 553498106 Class: Com

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

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

Q4 2025

Shares 29 Value ($000) $5 Avg Close $162.81 Range $151.11 - $177.20

Q3 2025

Shares 45 Value ($000) $8 Avg Close $172.87 Range $165.94 - $182.86

Q2 2025

Shares 92 Value ($000) $15 Avg Close $156.47 Range $127.86 - $170.11

Q1 2025

Shares 70 Value ($000) $10 Avg Close $159.40 Range $146.01 - $167.77

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	29	$5	$162.81	$151.11 - $177.20
Q3 2025	45	$8	$172.87	$165.94 - $182.86
Q2 2025	92	$15	$156.47	$127.86 - $170.11
Q1 2025	70	$10	$159.40	$146.01 - $167.77