MSA SAFETY INC

Ticker: MSA CUSIP: 553498106 Class: Com

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025

Shares 35,164 Value ($000) $5,631 Avg Close $162.81 Range $151.11 - $177.20

Q3 2025

Shares 36,080 Value ($000) $6,208 Avg Close $172.87 Range $165.94 - $182.86

Q2 2025

Shares 36,078 Value ($000) $6,044 Avg Close $156.47 Range $127.86 - $170.11

Q1 2025

Shares 36,078 Value ($000) $5,292 Avg Close $159.40 Range $146.01 - $167.77

Q4 2024

Shares 34,955 Value ($000) $5,794 Avg Close $171.42 Range $161.68 - $181.37

Q3 2024

Shares 35,381 Value ($000) $6,274 Avg Close $181.80 Range $167.76 - $200.61

Q2 2024

Shares 36,450 Value ($000) $6,841 Avg Close $185.92 Range $169.05 - $196.02

Q1 2024

Shares 37,341 Value ($000) $7,229 Avg Close $175.84 Range $160.02 - $195.48

Q4 2023

Shares 39,371 Value ($000) $6,647 Avg Close $162.61 Range $147.35 - $179.43

Q3 2023

Shares 41,191 Value ($000) $6,494 Avg Close $171.77 Range $157.40 - $185.57

Q2 2023

Shares 45,146 Value ($000) $7,854 Avg Close $143.11 Range $122.57 - $176.00

Q1 2023

Shares 46,531 Value ($000) $6,212 Avg Close $134.73 Range $127.94 - $146.33

Q4 2022

Shares 47,166 Value ($000) $6,801 Avg Close $130.95 Range $110.19 - $144.94

Q3 2022

Shares 46,820 Value ($000) $5,116 Avg Close $123.01 Range $108.75 - $132.89

Q2 2022

Shares 47,716 Value ($000) $5,777 Avg Close $124.30 Range $112.89 - $138.65

Q1 2022

Shares 47,455 Value ($000) $6,297 Avg Close $138.12 Range $127.20 - $151.98

Q4 2021

Shares 51,519 Value ($000) $7,777 Avg Close $150.05 Range $136.91 - $157.29

Q3 2021

Shares 62,153 Value ($000) $9,056 Avg Close $158.79 Range $141.25 - $167.49

Q2 2021

Shares 62,789 Value ($000) $10,397 Avg Close $162.15 Range $149.59 - $172.31

Q1 2021

Shares 63,653 Value ($000) $9,549 Avg Close $161.14 Range $145.56 - $172.84

Q4 2020

Shares 63,893 Value ($000) $9,545 Avg Close $144.38 Range $124.58 - $155.47

Q3 2020

Shares 62,841 Value ($000) $8,431 Avg Close $122.44 Range $108.35 - $135.47

Q2 2020

Shares 61,520 Value ($000) $7,040 Avg Close $111.17 Range $88.18 - $126.16

Q1 2020

Shares 53,666 Value ($000) $5,431 Avg Close $125.88 Range $83.57 - $142.34

Q4 2019

Shares 53,932 Value ($000) $6,815 Avg Close $120.34 Range $104.14 - $128.18

Q3 2019

Shares 55,022 Value ($000) $6,003 Avg Close $105.47 Range $98.71 - $114.64

Q2 2019

Shares 54,365 Value ($000) $5,730 Avg Close $105.05 Range $96.01 - $113.06

Q1 2019

Shares 52,218 Value ($000) $5,399 Avg Close $100.71 Range $90.81 - $105.37

Q4 2018

Shares 53,379 Value ($000) $5,032 Avg Close $102.10 Range $86.72 - $110.83

Q3 2018

Shares 52,176 Value ($000) $5,554 Avg Close $100.99 Range $91.22 - $108.86

Q2 2018

Shares 52,194 Value ($000) $5,028 Avg Close $90.37 Range $80.86 - $97.36

Q1 2018

Shares 50,775 Value ($000) $4,227 Avg Close $80.24 Range $71.47 - $87.31

Q4 2017

Shares 52,555 Value ($000) $4,074 Avg Close $79.81 Range $75.79 - $86.36

Q3 2017

Shares 53,392 Value ($000) $4,245 Avg Close $74.83 Range $65.95 - $81.88

Q2 2017

Shares 59,089 Value ($000) $4,796 Avg Close $77.51 Range $66.78 - $84.86

Q1 2017

Shares 61,164 Value ($000) $4,324 Avg Close $69.85 Range $66.47 - $74.64

Q4 2016

Shares 64,064 Value ($000) $4,442 Avg Close $61.85 Range $55.00 - $71.28

Q3 2016

Shares 65,764 Value ($000) $3,817 Avg Close $55.92 Range $51.25 - $58.62

Q2 2016

Shares 65,264 Value ($000) $3,428 Avg Close $49.54 Range $44.16 - $54.70

Q1 2016

Shares 62,270 Value ($000) $3,011 Avg Close $43.17 Range $37.68 - $49.77

Q4 2015

Shares 54,300 Value ($000) $2,360 Avg Close $43.83 Range $39.17 - $47.46

Q3 2015

Shares 53,400 Value ($000) $2,134 Avg Close $46.53 Range $38.32 - $54.54

Q2 2015

Shares 53,500 Value ($000) $2,595 Avg Close $47.96 Range $43.43 - $52.59

Q1 2015

Shares 54,022 Value ($000) $2,695 Avg Close $48.32 Range $43.12 - $53.64

Q4 2014

Shares 54,922 Value ($000) $2,916 Avg Close $52.89 Range $46.25 - $58.99

Q3 2014

Shares 54,489 Value ($000) $2,692 Avg Close $55.35 Range $49.37 - $61.08

Q2 2014

Shares 53,879 Value ($000) $3,097 Avg Close $54.84 Range $49.85 - $58.90

Q1 2014

Shares 51,479 Value ($000) $2,934 Avg Close $52.42 Range $46.50 - $57.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	35,164	$5,631	$162.81	$151.11 - $177.20
Q3 2025	36,080	$6,208	$172.87	$165.94 - $182.86
Q2 2025	36,078	$6,044	$156.47	$127.86 - $170.11
Q1 2025	36,078	$5,292	$159.40	$146.01 - $167.77
Q4 2024	34,955	$5,794	$171.42	$161.68 - $181.37
Q3 2024	35,381	$6,274	$181.80	$167.76 - $200.61
Q2 2024	36,450	$6,841	$185.92	$169.05 - $196.02
Q1 2024	37,341	$7,229	$175.84	$160.02 - $195.48
Q4 2023	39,371	$6,647	$162.61	$147.35 - $179.43
Q3 2023	41,191	$6,494	$171.77	$157.40 - $185.57
Q2 2023	45,146	$7,854	$143.11	$122.57 - $176.00
Q1 2023	46,531	$6,212	$134.73	$127.94 - $146.33
Q4 2022	47,166	$6,801	$130.95	$110.19 - $144.94
Q3 2022	46,820	$5,116	$123.01	$108.75 - $132.89
Q2 2022	47,716	$5,777	$124.30	$112.89 - $138.65
Q1 2022	47,455	$6,297	$138.12	$127.20 - $151.98
Q4 2021	51,519	$7,777	$150.05	$136.91 - $157.29
Q3 2021	62,153	$9,056	$158.79	$141.25 - $167.49
Q2 2021	62,789	$10,397	$162.15	$149.59 - $172.31
Q1 2021	63,653	$9,549	$161.14	$145.56 - $172.84
Q4 2020	63,893	$9,545	$144.38	$124.58 - $155.47
Q3 2020	62,841	$8,431	$122.44	$108.35 - $135.47
Q2 2020	61,520	$7,040	$111.17	$88.18 - $126.16
Q1 2020	53,666	$5,431	$125.88	$83.57 - $142.34
Q4 2019	53,932	$6,815	$120.34	$104.14 - $128.18
Q3 2019	55,022	$6,003	$105.47	$98.71 - $114.64
Q2 2019	54,365	$5,730	$105.05	$96.01 - $113.06
Q1 2019	52,218	$5,399	$100.71	$90.81 - $105.37
Q4 2018	53,379	$5,032	$102.10	$86.72 - $110.83
Q3 2018	52,176	$5,554	$100.99	$91.22 - $108.86
Q2 2018	52,194	$5,028	$90.37	$80.86 - $97.36
Q1 2018	50,775	$4,227	$80.24	$71.47 - $87.31
Q4 2017	52,555	$4,074	$79.81	$75.79 - $86.36
Q3 2017	53,392	$4,245	$74.83	$65.95 - $81.88
Q2 2017	59,089	$4,796	$77.51	$66.78 - $84.86
Q1 2017	61,164	$4,324	$69.85	$66.47 - $74.64
Q4 2016	64,064	$4,442	$61.85	$55.00 - $71.28
Q3 2016	65,764	$3,817	$55.92	$51.25 - $58.62
Q2 2016	65,264	$3,428	$49.54	$44.16 - $54.70
Q1 2016	62,270	$3,011	$43.17	$37.68 - $49.77
Q4 2015	54,300	$2,360	$43.83	$39.17 - $47.46
Q3 2015	53,400	$2,134	$46.53	$38.32 - $54.54
Q2 2015	53,500	$2,595	$47.96	$43.43 - $52.59
Q1 2015	54,022	$2,695	$48.32	$43.12 - $53.64
Q4 2014	54,922	$2,916	$52.89	$46.25 - $58.99
Q3 2014	54,489	$2,692	$55.35	$49.37 - $61.08
Q2 2014	53,879	$3,097	$54.84	$49.85 - $58.90
Q1 2014	51,479	$2,934	$52.42	$46.50 - $57.94