MGE ENERGY INC

Ticker: MGEE CUSIP: 55277P104 Class: EQTY

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

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

Q4 2025

Shares 35,133 Value ($000) $2,755 Avg Close $81.88 Range $77.46 - $87.44

Q3 2025

Shares 33,489 Value ($000) $2,819 Avg Close $84.55 Range $81.29 - $89.64

Q2 2025

Shares 33,487 Value ($000) $2,962 Avg Close $88.71 Range $82.64 - $92.70

Q1 2025

Shares 33,375 Value ($000) $3,103 Avg Close $89.24 Range $82.79 - $94.23

Q4 2024

Shares 33,855 Value ($000) $3,181 Avg Close $94.30 Range $85.20 - $106.47

Q3 2024

Shares 34,243 Value ($000) $3,132 Avg Close $83.06 Range $70.08 - $90.80

Q2 2024

Shares 35,316 Value ($000) $2,639 Avg Close $75.44 Range $70.99 - $79.58

Q1 2024

Shares 36,211 Value ($000) $2,851 Avg Close $67.28 Range $59.48 - $79.45

Q4 2023

Shares 38,219 Value ($000) $2,764 Avg Close $69.06 Range $62.00 - $72.73

Q3 2023

Shares 40,034 Value ($000) $2,743 Avg Close $71.95 Range $64.94 - $78.85

Q2 2023

Shares 43,968 Value ($000) $3,478 Avg Close $72.43 Range $66.60 - $76.55

Q1 2023

Shares 45,316 Value ($000) $3,520 Avg Close $67.95 Range $64.42 - $73.96

Q4 2022

Shares 46,001 Value ($000) $3,238 Avg Close $64.08 Range $57.39 - $69.26

Q3 2022

Shares 45,495 Value ($000) $2,986 Avg Close $72.70 Range $60.97 - $79.87

Q2 2022

Shares 46,404 Value ($000) $3,612 Avg Close $73.59 Range $68.07 - $78.29

Q1 2022

Shares 46,329 Value ($000) $3,697 Avg Close $69.83 Range $63.69 - $75.59

Q4 2021

Shares 50,398 Value ($000) $4,145 Avg Close $70.14 Range $65.70 - $75.65

Q3 2021

Shares 49,382 Value ($000) $3,630 Avg Close $71.14 Range $65.93 - $75.27

Q2 2021

Shares 50,239 Value ($000) $3,740 Avg Close $67.43 Range $63.48 - $70.23

Q1 2021

Shares 54,957 Value ($000) $3,923 Avg Close $60.60 Range $56.56 - $65.90

Q4 2020

Shares 55,084 Value ($000) $3,858 Avg Close $61.71 Range $55.58 - $66.52

Q3 2020

Shares 55,156 Value ($000) $3,456 Avg Close $57.65 Range $53.32 - $60.81

Q2 2020

Shares 53,055 Value ($000) $3,423 Avg Close $57.78 Range $49.69 - $64.40

Q1 2020

Shares 53,055 Value ($000) $3,474 Avg Close $65.70 Range $41.69 - $73.22

Q4 2019

Shares 53,318 Value ($000) $4,203 Avg Close $67.55 Range $63.34 - $70.99

Q3 2019

Shares 54,395 Value ($000) $4,345 Avg Close $65.28 Range $61.70 - $70.77

Q2 2019

Shares 53,681 Value ($000) $3,923 Avg Close $59.70 Range $55.69 - $66.61

Q1 2019

Shares 53,473 Value ($000) $3,635 Avg Close $54.99 Range $48.93 - $59.48

Q4 2018

Shares 54,662 Value ($000) $3,278 Avg Close $54.78 Range $48.85 - $59.46

Q3 2018

Shares 53,445 Value ($000) $3,412 Avg Close $55.46 Range $52.83 - $58.38

Q2 2018

Shares 53,449 Value ($000) $3,370 Avg Close $49.58 Range $46.44 - $54.28

Q1 2018

Shares 53,219 Value ($000) $2,986 Avg Close $48.13 Range $43.34 - $53.46

Q4 2017

Shares 55,113 Value ($000) $3,478 Avg Close $54.72 Range $51.82 - $57.19

Q3 2017

Shares 55,952 Value ($000) $3,614 Avg Close $54.16 Range $51.64 - $57.41

Q2 2017

Shares 61,967 Value ($000) $3,988 Avg Close $54.38 Range $52.06 - $57.32

Q1 2017

Shares 68,860 Value ($000) $4,476 Avg Close $52.46 Range $49.91 - $55.88

Q4 2016

Shares 72,160 Value ($000) $4,712 Avg Close $49.32 Range $44.04 - $55.33

Q3 2016

Shares 74,060 Value ($000) $4,185 Avg Close $46.22 Range $44.29 - $48.99

Q2 2016

Shares 73,460 Value ($000) $4,152 Avg Close $42.25 Range $39.00 - $46.30

Q1 2016

Shares 73,706 Value ($000) $3,851 Avg Close $39.96 Range $36.30 - $43.30

Q4 2015

Shares 64,244 Value ($000) $2,981 Avg Close $34.56 Range $31.50 - $38.24

Q3 2015

Shares 63,217 Value ($000) $2,604 Avg Close $31.61 Range $29.32 - $33.75

Q2 2015

Shares 63,317 Value ($000) $2,452 Avg Close $32.19 Range $29.09 - $35.91

Q1 2015

Shares 63,561 Value ($000) $2,817 Avg Close $35.01 Range $32.21 - $37.76

Q4 2014

Shares 64,661 Value ($000) $2,949 Avg Close $33.97 Range $29.13 - $37.78

Q3 2014

Shares 63,987 Value ($000) $2,384 Avg Close $30.43 Range $29.03 - $31.79

Q2 2014

Shares 63,324 Value ($000) $2,502 Avg Close $29.46 Range $27.99 - $30.75

Q1 2014

Shares 63,024 Value ($000) $2,472 Avg Close $29.37 Range $27.30 - $31.39

Q4 2013

Shares 41,883 Value ($000) $2,425 Avg Close $28.24 Range $26.59 - $29.81

Q3 2013

Shares 41,583 Value ($000) $2,268 Avg Close $28.25 Range $25.38 - $30.52

Q2 2013

Shares 40,278 Value ($000) $2,206 Avg Close $27.48 Range $26.21 - $28.93

Q1 2013

Shares 40,219 Value ($000) $2,230 Avg Close $26.52 Range $25.22 - $27.89

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	35,133	$2,755	$81.88	$77.46 - $87.44
Q3 2025	33,489	$2,819	$84.55	$81.29 - $89.64
Q2 2025	33,487	$2,962	$88.71	$82.64 - $92.70
Q1 2025	33,375	$3,103	$89.24	$82.79 - $94.23
Q4 2024	33,855	$3,181	$94.30	$85.20 - $106.47
Q3 2024	34,243	$3,132	$83.06	$70.08 - $90.80
Q2 2024	35,316	$2,639	$75.44	$70.99 - $79.58
Q1 2024	36,211	$2,851	$67.28	$59.48 - $79.45
Q4 2023	38,219	$2,764	$69.06	$62.00 - $72.73
Q3 2023	40,034	$2,743	$71.95	$64.94 - $78.85
Q2 2023	43,968	$3,478	$72.43	$66.60 - $76.55
Q1 2023	45,316	$3,520	$67.95	$64.42 - $73.96
Q4 2022	46,001	$3,238	$64.08	$57.39 - $69.26
Q3 2022	45,495	$2,986	$72.70	$60.97 - $79.87
Q2 2022	46,404	$3,612	$73.59	$68.07 - $78.29
Q1 2022	46,329	$3,697	$69.83	$63.69 - $75.59
Q4 2021	50,398	$4,145	$70.14	$65.70 - $75.65
Q3 2021	49,382	$3,630	$71.14	$65.93 - $75.27
Q2 2021	50,239	$3,740	$67.43	$63.48 - $70.23
Q1 2021	54,957	$3,923	$60.60	$56.56 - $65.90
Q4 2020	55,084	$3,858	$61.71	$55.58 - $66.52
Q3 2020	55,156	$3,456	$57.65	$53.32 - $60.81
Q2 2020	53,055	$3,423	$57.78	$49.69 - $64.40
Q1 2020	53,055	$3,474	$65.70	$41.69 - $73.22
Q4 2019	53,318	$4,203	$67.55	$63.34 - $70.99
Q3 2019	54,395	$4,345	$65.28	$61.70 - $70.77
Q2 2019	53,681	$3,923	$59.70	$55.69 - $66.61
Q1 2019	53,473	$3,635	$54.99	$48.93 - $59.48
Q4 2018	54,662	$3,278	$54.78	$48.85 - $59.46
Q3 2018	53,445	$3,412	$55.46	$52.83 - $58.38
Q2 2018	53,449	$3,370	$49.58	$46.44 - $54.28
Q1 2018	53,219	$2,986	$48.13	$43.34 - $53.46
Q4 2017	55,113	$3,478	$54.72	$51.82 - $57.19
Q3 2017	55,952	$3,614	$54.16	$51.64 - $57.41
Q2 2017	61,967	$3,988	$54.38	$52.06 - $57.32
Q1 2017	68,860	$4,476	$52.46	$49.91 - $55.88
Q4 2016	72,160	$4,712	$49.32	$44.04 - $55.33
Q3 2016	74,060	$4,185	$46.22	$44.29 - $48.99
Q2 2016	73,460	$4,152	$42.25	$39.00 - $46.30
Q1 2016	73,706	$3,851	$39.96	$36.30 - $43.30
Q4 2015	64,244	$2,981	$34.56	$31.50 - $38.24
Q3 2015	63,217	$2,604	$31.61	$29.32 - $33.75
Q2 2015	63,317	$2,452	$32.19	$29.09 - $35.91
Q1 2015	63,561	$2,817	$35.01	$32.21 - $37.76
Q4 2014	64,661	$2,949	$33.97	$29.13 - $37.78
Q3 2014	63,987	$2,384	$30.43	$29.03 - $31.79
Q2 2014	63,324	$2,502	$29.46	$27.99 - $30.75
Q1 2014	63,024	$2,472	$29.37	$27.30 - $31.39
Q4 2013	41,883	$2,425	$28.24	$26.59 - $29.81
Q3 2013	41,583	$2,268	$28.25	$25.38 - $30.52
Q2 2013	40,278	$2,206	$27.48	$26.21 - $28.93
Q1 2013	40,219	$2,230	$26.52	$25.22 - $27.89