MSA SAFETY INC

Ticker: MSA CUSIP: 553498106 Class: Com

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 2,200 Value ($000) $352 Avg Close $162.81 Range $151.11 - $177.20

Q3 2025

Shares 4,096 Value ($000) $705 Avg Close $172.87 Range $165.94 - $182.86

Q2 2025

Shares 2,200 Value ($000) $369 Avg Close $156.47 Range $127.86 - $170.11

Q1 2024

Shares 38,304 Value ($000) $7,415 Avg Close $175.84 Range $160.02 - $195.48

Q4 2023

Shares 13,199 Value ($000) $2,228 Avg Close $162.61 Range $147.35 - $179.43

Q3 2023

Shares 4,438 Value ($000) $700 Avg Close $171.77 Range $157.40 - $185.57

Q1 2023

Shares 2,709 Value ($000) $362 Avg Close $134.73 Range $127.94 - $146.33

Q2 2022

Shares 29,002 Value ($000) $3,511 Avg Close $124.30 Range $112.89 - $138.65

Q2 2020

Shares 7,390 Value ($000) $846 Avg Close $111.17 Range $88.18 - $126.16

Q1 2019

Shares 9,348 Value ($000) $967 Avg Close $100.71 Range $90.81 - $105.37

Q1 2018

Shares 6,300 Value ($000) $524 Avg Close $80.24 Range $71.47 - $87.31

Q3 2015

Shares 7,448 Value ($000) $298 Avg Close $46.53 Range $38.32 - $54.54

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,200	$352	$162.81	$151.11 - $177.20
Q3 2025	4,096	$705	$172.87	$165.94 - $182.86
Q2 2025	2,200	$369	$156.47	$127.86 - $170.11
Q1 2024	38,304	$7,415	$175.84	$160.02 - $195.48
Q4 2023	13,199	$2,228	$162.61	$147.35 - $179.43
Q3 2023	4,438	$700	$171.77	$157.40 - $185.57
Q1 2023	2,709	$362	$134.73	$127.94 - $146.33
Q2 2022	29,002	$3,511	$124.30	$112.89 - $138.65
Q2 2020	7,390	$846	$111.17	$88.18 - $126.16
Q1 2019	9,348	$967	$100.71	$90.81 - $105.37
Q1 2018	6,300	$524	$80.24	$71.47 - $87.31
Q3 2015	7,448	$298	$46.53	$38.32 - $54.54