MATERION CORP

Ticker: MTRN CUSIP: 576690101 Class: EQTY

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

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

Q4 2025

Shares 19,686 Value ($000) $2,447 Avg Close $123.31 Range $109.61 - $135.33

Q3 2025

Shares 19,169 Value ($000) $2,316 Avg Close $105.00 Range $78.40 - $122.73

Q2 2025

Shares 17,881 Value ($000) $1,419 Avg Close $78.87 Range $69.10 - $91.03

Q1 2025

Shares 18,911 Value ($000) $1,543 Avg Close $94.24 Range $80.21 - $106.57

Q4 2024

Shares 19,392 Value ($000) $1,917 Avg Close $108.67 Range $96.18 - $123.21

Q3 2024

Shares 19,601 Value ($000) $2,193 Avg Close $111.21 Range $98.51 - $123.09

Q2 2024

Shares 20,141 Value ($000) $2,178 Avg Close $114.94 Range $104.91 - $131.97

Q1 2024

Shares 20,685 Value ($000) $2,725 Avg Close $126.70 Range $115.25 - $145.08

Q4 2023

Shares 21,766 Value ($000) $2,832 Avg Close $109.69 Range $92.23 - $132.50

Q3 2023

Shares 22,758 Value ($000) $2,319 Avg Close $109.18 Range $97.98 - $123.41

Q2 2023

Shares 24,970 Value ($000) $2,852 Avg Close $108.57 Range $99.33 - $121.29

Q1 2023

Shares 25,632 Value ($000) $2,973 Avg Close $100.24 Range $84.23 - $118.20

Q4 2022

Shares 26,011 Value ($000) $2,276 Avg Close $81.64 Range $64.89 - $89.26

Q3 2022

Shares 25,714 Value ($000) $2,057 Avg Close $82.42 Range $69.36 - $97.89

Q2 2022

Shares 26,162 Value ($000) $1,929 Avg Close $80.32 Range $68.75 - $89.68

Q1 2022

Shares 26,106 Value ($000) $2,238 Avg Close $85.47 Range $78.88 - $96.00

Q4 2021

Shares 28,405 Value ($000) $2,612 Avg Close $83.35 Range $68.09 - $95.60

Q3 2021

Shares 27,841 Value ($000) $1,911 Avg Close $71.56 Range $66.92 - $76.97

Q2 2021

Shares 28,090 Value ($000) $2,117 Avg Close $74.12 Range $64.48 - $80.39

Q1 2021

Shares 30,612 Value ($000) $2,028 Avg Close $69.38 Range $61.96 - $80.70

Q4 2020

Shares 30,654 Value ($000) $1,953 Avg Close $57.50 Range $49.51 - $64.23

Q3 2020

Shares 30,654 Value ($000) $1,595 Avg Close $56.58 Range $49.60 - $63.83

Q2 2020

Shares 30,609 Value ($000) $1,882 Avg Close $50.57 Range $32.91 - $63.46

Q1 2020

Shares 30,662 Value ($000) $1,073 Avg Close $49.59 Range $26.15 - $62.56

Q4 2019

Shares 31,264 Value ($000) $1,859 Avg Close $59.15 Range $55.67 - $63.19

Q3 2019

Shares 31,703 Value ($000) $1,945 Avg Close $62.07 Range $56.79 - $68.75

Q2 2019

Shares 31,257 Value ($000) $2,120 Avg Close $62.97 Range $56.29 - $71.97

Q1 2019

Shares 31,032 Value ($000) $1,771 Avg Close $52.02 Range $42.50 - $59.87

Q4 2018

Shares 31,524 Value ($000) $1,418 Avg Close $53.14 Range $42.66 - $61.07

Q3 2018

Shares 30,783 Value ($000) $1,862 Avg Close $60.17 Range $53.70 - $65.10

Q2 2018

Shares 30,793 Value ($000) $1,667 Avg Close $54.29 Range $49.40 - $57.45

Q1 2018

Shares 30,353 Value ($000) $1,550 Avg Close $51.05 Range $44.95 - $55.35

Q4 2017

Shares 31,417 Value ($000) $1,527 Avg Close $47.56 Range $42.10 - $52.10

Q3 2017

Shares 31,733 Value ($000) $1,369 Avg Close $38.31 Range $36.60 - $43.43

Q2 2017

Shares 35,339 Value ($000) $1,322 Avg Close $35.32 Range $33.00 - $38.85

Q1 2017

Shares 39,239 Value ($000) $1,316 Avg Close $36.71 Range $31.05 - $41.10

Q4 2016

Shares 41,039 Value ($000) $1,625 Avg Close $35.18 Range $28.50 - $41.23

Q3 2016

Shares 42,039 Value ($000) $1,291 Avg Close $28.09 Range $24.18 - $32.28

Q2 2016

Shares 41,739 Value ($000) $1,033 Avg Close $25.67 Range $22.36 - $31.83

Q1 2016

Shares 42,670 Value ($000) $1,130 Avg Close $24.91 Range $20.62 - $28.26

Q4 2015

Shares 37,335 Value ($000) $1,045 Avg Close $30.22 Range $26.02 - $35.21

Q3 2015

Shares 36,703 Value ($000) $1,102 Avg Close $31.92 Range $28.83 - $36.53

Q2 2015

Shares 36,803 Value ($000) $1,297 Avg Close $38.55 Range $35.16 - $41.85

Q1 2015

Shares 37,770 Value ($000) $1,452 Avg Close $35.92 Range $31.95 - $39.57

Q4 2014

Shares 38,170 Value ($000) $1,345 Avg Close $34.46 Range $26.64 - $40.60

Q3 2014

Shares 38,008 Value ($000) $1,166 Avg Close $33.98 Range $30.65 - $39.38

Q2 2014

Shares 45,542 Value ($000) $1,685 Avg Close $34.63 Range $31.69 - $37.96

Q1 2014

Shares 37,392 Value ($000) $1,269 Avg Close $29.70 Range $25.21 - $35.19

Q4 2013

Shares 37,192 Value ($000) $1,147 Avg Close $29.01 Range $25.75 - $32.73

Q3 2013

Shares 36,892 Value ($000) $1,183 Avg Close $30.55 Range $27.09 - $33.69

Q2 2013

Shares 35,787 Value ($000) $969 Avg Close $28.11 Range $24.58 - $31.49

Q1 2013

Shares 35,537 Value ($000) $1,013 Avg Close $28.02 Range $26.20 - $29.81

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,686	$2,447	$123.31	$109.61 - $135.33
Q3 2025	19,169	$2,316	$105.00	$78.40 - $122.73
Q2 2025	17,881	$1,419	$78.87	$69.10 - $91.03
Q1 2025	18,911	$1,543	$94.24	$80.21 - $106.57
Q4 2024	19,392	$1,917	$108.67	$96.18 - $123.21
Q3 2024	19,601	$2,193	$111.21	$98.51 - $123.09
Q2 2024	20,141	$2,178	$114.94	$104.91 - $131.97
Q1 2024	20,685	$2,725	$126.70	$115.25 - $145.08
Q4 2023	21,766	$2,832	$109.69	$92.23 - $132.50
Q3 2023	22,758	$2,319	$109.18	$97.98 - $123.41
Q2 2023	24,970	$2,852	$108.57	$99.33 - $121.29
Q1 2023	25,632	$2,973	$100.24	$84.23 - $118.20
Q4 2022	26,011	$2,276	$81.64	$64.89 - $89.26
Q3 2022	25,714	$2,057	$82.42	$69.36 - $97.89
Q2 2022	26,162	$1,929	$80.32	$68.75 - $89.68
Q1 2022	26,106	$2,238	$85.47	$78.88 - $96.00
Q4 2021	28,405	$2,612	$83.35	$68.09 - $95.60
Q3 2021	27,841	$1,911	$71.56	$66.92 - $76.97
Q2 2021	28,090	$2,117	$74.12	$64.48 - $80.39
Q1 2021	30,612	$2,028	$69.38	$61.96 - $80.70
Q4 2020	30,654	$1,953	$57.50	$49.51 - $64.23
Q3 2020	30,654	$1,595	$56.58	$49.60 - $63.83
Q2 2020	30,609	$1,882	$50.57	$32.91 - $63.46
Q1 2020	30,662	$1,073	$49.59	$26.15 - $62.56
Q4 2019	31,264	$1,859	$59.15	$55.67 - $63.19
Q3 2019	31,703	$1,945	$62.07	$56.79 - $68.75
Q2 2019	31,257	$2,120	$62.97	$56.29 - $71.97
Q1 2019	31,032	$1,771	$52.02	$42.50 - $59.87
Q4 2018	31,524	$1,418	$53.14	$42.66 - $61.07
Q3 2018	30,783	$1,862	$60.17	$53.70 - $65.10
Q2 2018	30,793	$1,667	$54.29	$49.40 - $57.45
Q1 2018	30,353	$1,550	$51.05	$44.95 - $55.35
Q4 2017	31,417	$1,527	$47.56	$42.10 - $52.10
Q3 2017	31,733	$1,369	$38.31	$36.60 - $43.43
Q2 2017	35,339	$1,322	$35.32	$33.00 - $38.85
Q1 2017	39,239	$1,316	$36.71	$31.05 - $41.10
Q4 2016	41,039	$1,625	$35.18	$28.50 - $41.23
Q3 2016	42,039	$1,291	$28.09	$24.18 - $32.28
Q2 2016	41,739	$1,033	$25.67	$22.36 - $31.83
Q1 2016	42,670	$1,130	$24.91	$20.62 - $28.26
Q4 2015	37,335	$1,045	$30.22	$26.02 - $35.21
Q3 2015	36,703	$1,102	$31.92	$28.83 - $36.53
Q2 2015	36,803	$1,297	$38.55	$35.16 - $41.85
Q1 2015	37,770	$1,452	$35.92	$31.95 - $39.57
Q4 2014	38,170	$1,345	$34.46	$26.64 - $40.60
Q3 2014	38,008	$1,166	$33.98	$30.65 - $39.38
Q2 2014	45,542	$1,685	$34.63	$31.69 - $37.96
Q1 2014	37,392	$1,269	$29.70	$25.21 - $35.19
Q4 2013	37,192	$1,147	$29.01	$25.75 - $32.73
Q3 2013	36,892	$1,183	$30.55	$27.09 - $33.69
Q2 2013	35,787	$969	$28.11	$24.58 - $31.49
Q1 2013	35,537	$1,013	$28.02	$26.20 - $29.81