ORION ENGINEERED CARBONS S A

Ticker: OEC CUSIP: L72967109 Class: Common Stock

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

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

Q4 2025

Shares 3,416 Value ($000) $18 Avg Close $5.42 Range $4.34 - $7.58

Q3 2025

Shares 42,959 Value ($000) $326 Avg Close $10.11 Range $7.32 - $11.62

Q2 2025

Shares 54,470 Value ($000) $571 Avg Close $11.31 Range $9.59 - $12.97

Q1 2025

Shares 54,470 Value ($000) $704 Avg Close $14.14 Range $12.51 - $16.63

Q4 2024

Shares 54,470 Value ($000) $860 Avg Close $16.89 Range $14.94 - $19.48

Q3 2024

Shares 55,077 Value ($000) $981 Avg Close $19.27 Range $15.54 - $24.85

Q2 2024

Shares 56,474 Value ($000) $1,239 Avg Close $24.07 Range $21.72 - $26.05

Q1 2024

Shares 57,786 Value ($000) $1,359 Avg Close $23.12 Range $21.63 - $27.73

Q4 2023

Shares 61,235 Value ($000) $1,698 Avg Close $22.94 Range $19.32 - $28.48

Q3 2023

Shares 64,420 Value ($000) $1,371 Avg Close $21.83 Range $19.55 - $23.57

Q2 2023

Shares 68,809 Value ($000) $1,460 Avg Close $24.10 Range $20.60 - $26.57

Q1 2023

Shares 75,935 Value ($000) $1,981 Avg Close $22.61 Range $17.43 - $26.91

Q4 2022

Shares 77,002 Value ($000) $1,371 Avg Close $16.82 Range $12.87 - $19.37

Q3 2022

Shares 76,164 Value ($000) $1,017 Avg Close $16.25 Range $13.19 - $17.88

Q2 2022

Shares 78,426 Value ($000) $1,218 Avg Close $16.75 Range $13.84 - $20.63

Q1 2022

Shares 77,867 Value ($000) $1,244 Avg Close $17.22 Range $14.05 - $20.51

Q4 2021

Shares 84,562 Value ($000) $1,553 Avg Close $18.63 Range $16.55 - $20.99

Q3 2021

Shares 82,377 Value ($000) $1,502 Avg Close $17.89 Range $16.30 - $19.39

Q2 2021

Shares 83,462 Value ($000) $1,585 Avg Close $19.79 Range $17.88 - $22.45

Q1 2021

Shares 91,031 Value ($000) $1,795 Avg Close $18.01 Range $15.23 - $21.05

Q4 2020

Shares 91,031 Value ($000) $1,560 Avg Close $15.25 Range $12.37 - $17.46

Q3 2020

Shares 91,031 Value ($000) $1,139 Avg Close $11.98 Range $9.82 - $15.27

Q2 2020

Shares 91,031 Value ($000) $964 Avg Close $9.24 Range $6.17 - $13.55

Q1 2020

Shares 91,031 Value ($000) $679 Avg Close $14.47 Range $5.93 - $19.71

Q4 2019

Shares 91,508 Value ($000) $1,766 Avg Close $18.07 Range $15.41 - $20.78

Q3 2019

Shares 93,918 Value ($000) $1,569 Avg Close $16.36 Range $12.10 - $21.87

Q2 2019

Shares 91,728 Value ($000) $1,964 Avg Close $19.78 Range $17.52 - $21.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,416	$18	$5.42	$4.34 - $7.58
Q3 2025	42,959	$326	$10.11	$7.32 - $11.62
Q2 2025	54,470	$571	$11.31	$9.59 - $12.97
Q1 2025	54,470	$704	$14.14	$12.51 - $16.63
Q4 2024	54,470	$860	$16.89	$14.94 - $19.48
Q3 2024	55,077	$981	$19.27	$15.54 - $24.85
Q2 2024	56,474	$1,239	$24.07	$21.72 - $26.05
Q1 2024	57,786	$1,359	$23.12	$21.63 - $27.73
Q4 2023	61,235	$1,698	$22.94	$19.32 - $28.48
Q3 2023	64,420	$1,371	$21.83	$19.55 - $23.57
Q2 2023	68,809	$1,460	$24.10	$20.60 - $26.57
Q1 2023	75,935	$1,981	$22.61	$17.43 - $26.91
Q4 2022	77,002	$1,371	$16.82	$12.87 - $19.37
Q3 2022	76,164	$1,017	$16.25	$13.19 - $17.88
Q2 2022	78,426	$1,218	$16.75	$13.84 - $20.63
Q1 2022	77,867	$1,244	$17.22	$14.05 - $20.51
Q4 2021	84,562	$1,553	$18.63	$16.55 - $20.99
Q3 2021	82,377	$1,502	$17.89	$16.30 - $19.39
Q2 2021	83,462	$1,585	$19.79	$17.88 - $22.45
Q1 2021	91,031	$1,795	$18.01	$15.23 - $21.05
Q4 2020	91,031	$1,560	$15.25	$12.37 - $17.46
Q3 2020	91,031	$1,139	$11.98	$9.82 - $15.27
Q2 2020	91,031	$964	$9.24	$6.17 - $13.55
Q1 2020	91,031	$679	$14.47	$5.93 - $19.71
Q4 2019	91,508	$1,766	$18.07	$15.41 - $20.78
Q3 2019	93,918	$1,569	$16.36	$12.10 - $21.87
Q2 2019	91,728	$1,964	$19.78	$17.52 - $21.71