COMPASS MINERALS INTL INC

Ticker: CMP CUSIP: 20451N101 Class: Common Stock

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

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

Q4 2025

Shares 32,397 Value ($000) $636 Avg Close $18.50 Range $16.40 - $21.43

Q3 2025

Shares 32,422 Value ($000) $623 Avg Close $19.87 Range $17.67 - $22.69

Q2 2025

Shares 32,769 Value ($000) $658 Avg Close $16.16 Range $8.60 - $20.96

Q1 2025

Shares 32,769 Value ($000) $304 Avg Close $11.42 Range $9.03 - $14.38

Q4 2024

Shares 32,769 Value ($000) $369 Avg Close $13.06 Range $10.33 - $15.82

Q3 2024

Shares 33,170 Value ($000) $399 Avg Close $10.60 Range $7.51 - $13.53

Q2 2024

Shares 34,206 Value ($000) $353 Avg Close $12.90 Range $10.29 - $15.89

Q1 2024

Shares 35,284 Value ($000) $555 Avg Close $20.87 Range $13.60 - $25.35

Q4 2023

Shares 36,807 Value ($000) $932 Avg Close $25.24 Range $22.51 - $28.33

Q3 2023

Shares 38,455 Value ($000) $1,075 Avg Close $31.63 Range $26.16 - $39.06

Q2 2023

Shares 42,141 Value ($000) $1,433 Avg Close $32.48 Range $28.25 - $36.63

Q1 2023

Shares 43,385 Value ($000) $1,488 Avg Close $38.98 Range $29.74 - $46.44

Q4 2022

Shares 43,394 Value ($000) $1,779 Avg Close $40.16 Range $35.70 - $45.36

Q3 2022

Shares 42,929 Value ($000) $1,654 Avg Close $36.91 Range $29.66 - $43.04

Q2 2022

Shares 43,735 Value ($000) $1,548 Avg Close $47.72 Range $30.80 - $65.21

Q1 2022

Shares 43,509 Value ($000) $2,732 Avg Close $54.63 Range $48.30 - $62.43

Q4 2021

Shares 47,442 Value ($000) $2,423 Avg Close $58.48 Range $45.15 - $72.31

Q3 2021

Shares 46,422 Value ($000) $2,990 Avg Close $62.54 Range $54.26 - $68.27

Q2 2021

Shares 47,204 Value ($000) $2,797 Avg Close $62.42 Range $54.73 - $67.43

Q1 2021

Shares 51,526 Value ($000) $3,232 Avg Close $59.57 Range $53.04 - $65.79

Q4 2020

Shares 51,785 Value ($000) $3,196 Avg Close $57.09 Range $49.77 - $61.48

Q3 2020

Shares 51,545 Value ($000) $3,059 Avg Close $50.16 Range $41.98 - $55.64

Q2 2020

Shares 51,504 Value ($000) $2,511 Avg Close $41.66 Range $30.71 - $50.05

Q1 2020

Shares 51,863 Value ($000) $1,995 Avg Close $48.21 Range $31.47 - $58.31

Q4 2019

Shares 52,120 Value ($000) $3,177 Avg Close $49.59 Range $45.73 - $54.07

Q3 2019

Shares 53,147 Value ($000) $3,002 Avg Close $46.24 Range $40.75 - $51.26

Q2 2019

Shares 52,628 Value ($000) $2,892 Avg Close $46.99 Range $43.48 - $50.69

Q1 2019

Shares 52,197 Value ($000) $2,838 Avg Close $42.46 Range $32.98 - $48.11

Q4 2018

Shares 53,357 Value ($000) $2,224 Avg Close $43.49 Range $31.88 - $56.95

Q3 2018

Shares 52,155 Value ($000) $3,505 Avg Close $53.24 Range $48.77 - $57.91

Q2 2018

Shares 52,173 Value ($000) $3,430 Avg Close $53.77 Range $47.64 - $57.33

Q1 2018

Shares 51,642 Value ($000) $3,114 Avg Close $53.63 Range $45.47 - $60.97

Q4 2017

Shares 53,452 Value ($000) $3,862 Avg Close $53.16 Range $50.45 - $58.03

Q3 2017

Shares 54,271 Value ($000) $3,522 Avg Close $52.24 Range $47.01 - $55.89

Q2 2017

Shares 60,038 Value ($000) $3,920 Avg Close $51.48 Range $48.29 - $53.91

Q1 2017

Shares 68,989 Value ($000) $4,681 Avg Close $58.33 Range $50.29 - $64.38

Q4 2016

Shares 72,089 Value ($000) $5,648 Avg Close $57.67 Range $53.18 - $62.97

Q3 2016

Shares 73,889 Value ($000) $5,446 Avg Close $54.44 Range $50.92 - $57.62

Q2 2016

Shares 73,289 Value ($000) $5,437 Avg Close $56.40 Range $49.77 - $60.87

Q1 2016

Shares 71,542 Value ($000) $5,069 Avg Close $52.78 Range $48.71 - $56.62

Q4 2015

Shares 62,406 Value ($000) $4,697 Avg Close $59.61 Range $52.17 - $63.00

Q3 2015

Shares 61,385 Value ($000) $4,811 Avg Close $59.53 Range $56.23 - $62.65

Q2 2015

Shares 61,485 Value ($000) $5,050 Avg Close $63.39 Range $59.23 - $68.67

Q1 2015

Shares 61,337 Value ($000) $5,717 Avg Close $65.22 Range $60.90 - $68.52

Q4 2014

Shares 62,537 Value ($000) $5,430 Avg Close $60.85 Range $55.96 - $66.04

Q3 2014

Shares 61,872 Value ($000) $5,215 Avg Close $63.23 Range $59.25 - $68.53

Q2 2014

Shares 61,221 Value ($000) $5,861 Avg Close $63.15 Range $57.57 - $67.35

Q1 2014

Shares 60,621 Value ($000) $5,002 Avg Close $57.46 Range $53.12 - $61.48

Q4 2013

Shares 60,321 Value ($000) $4,829 Avg Close $51.71 Range $48.78 - $56.70

Q3 2013

Shares 59,921 Value ($000) $4,570 Avg Close $54.32 Range $43.88 - $62.76

Q2 2013

Shares 58,038 Value ($000) $4,906 Avg Close $57.41 Range $51.74 - $61.58

Q1 2013

Shares 57,502 Value ($000) $4,537 Avg Close $50.59 Range $48.00 - $53.62

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	32,397	$636	$18.50	$16.40 - $21.43
Q3 2025	32,422	$623	$19.87	$17.67 - $22.69
Q2 2025	32,769	$658	$16.16	$8.60 - $20.96
Q1 2025	32,769	$304	$11.42	$9.03 - $14.38
Q4 2024	32,769	$369	$13.06	$10.33 - $15.82
Q3 2024	33,170	$399	$10.60	$7.51 - $13.53
Q2 2024	34,206	$353	$12.90	$10.29 - $15.89
Q1 2024	35,284	$555	$20.87	$13.60 - $25.35
Q4 2023	36,807	$932	$25.24	$22.51 - $28.33
Q3 2023	38,455	$1,075	$31.63	$26.16 - $39.06
Q2 2023	42,141	$1,433	$32.48	$28.25 - $36.63
Q1 2023	43,385	$1,488	$38.98	$29.74 - $46.44
Q4 2022	43,394	$1,779	$40.16	$35.70 - $45.36
Q3 2022	42,929	$1,654	$36.91	$29.66 - $43.04
Q2 2022	43,735	$1,548	$47.72	$30.80 - $65.21
Q1 2022	43,509	$2,732	$54.63	$48.30 - $62.43
Q4 2021	47,442	$2,423	$58.48	$45.15 - $72.31
Q3 2021	46,422	$2,990	$62.54	$54.26 - $68.27
Q2 2021	47,204	$2,797	$62.42	$54.73 - $67.43
Q1 2021	51,526	$3,232	$59.57	$53.04 - $65.79
Q4 2020	51,785	$3,196	$57.09	$49.77 - $61.48
Q3 2020	51,545	$3,059	$50.16	$41.98 - $55.64
Q2 2020	51,504	$2,511	$41.66	$30.71 - $50.05
Q1 2020	51,863	$1,995	$48.21	$31.47 - $58.31
Q4 2019	52,120	$3,177	$49.59	$45.73 - $54.07
Q3 2019	53,147	$3,002	$46.24	$40.75 - $51.26
Q2 2019	52,628	$2,892	$46.99	$43.48 - $50.69
Q1 2019	52,197	$2,838	$42.46	$32.98 - $48.11
Q4 2018	53,357	$2,224	$43.49	$31.88 - $56.95
Q3 2018	52,155	$3,505	$53.24	$48.77 - $57.91
Q2 2018	52,173	$3,430	$53.77	$47.64 - $57.33
Q1 2018	51,642	$3,114	$53.63	$45.47 - $60.97
Q4 2017	53,452	$3,862	$53.16	$50.45 - $58.03
Q3 2017	54,271	$3,522	$52.24	$47.01 - $55.89
Q2 2017	60,038	$3,920	$51.48	$48.29 - $53.91
Q1 2017	68,989	$4,681	$58.33	$50.29 - $64.38
Q4 2016	72,089	$5,648	$57.67	$53.18 - $62.97
Q3 2016	73,889	$5,446	$54.44	$50.92 - $57.62
Q2 2016	73,289	$5,437	$56.40	$49.77 - $60.87
Q1 2016	71,542	$5,069	$52.78	$48.71 - $56.62
Q4 2015	62,406	$4,697	$59.61	$52.17 - $63.00
Q3 2015	61,385	$4,811	$59.53	$56.23 - $62.65
Q2 2015	61,485	$5,050	$63.39	$59.23 - $68.67
Q1 2015	61,337	$5,717	$65.22	$60.90 - $68.52
Q4 2014	62,537	$5,430	$60.85	$55.96 - $66.04
Q3 2014	61,872	$5,215	$63.23	$59.25 - $68.53
Q2 2014	61,221	$5,861	$63.15	$57.57 - $67.35
Q1 2014	60,621	$5,002	$57.46	$53.12 - $61.48
Q4 2013	60,321	$4,829	$51.71	$48.78 - $56.70
Q3 2013	59,921	$4,570	$54.32	$43.88 - $62.76
Q2 2013	58,038	$4,906	$57.41	$51.74 - $61.58
Q1 2013	57,502	$4,537	$50.59	$48.00 - $53.62