MGE ENERGY INC

Ticker: MGEE CUSIP: 55277P104 Class: EQTY

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q4 2025

Shares 27,074 Value ($000) $2,123 Avg Close $81.88 Range $77.46 - $87.44

Q3 2025

Shares 27,278 Value ($000) $2,296 Avg Close $84.55 Range $81.29 - $89.64

Q2 2025

Shares 20,390 Value ($000) $1,803 Avg Close $88.71 Range $82.64 - $92.70

Q1 2025

Shares 20,497 Value ($000) $1,905 Avg Close $89.24 Range $82.79 - $94.23

Q4 2024

Shares 20,497 Value ($000) $1,926 Avg Close $94.30 Range $85.20 - $106.47

Q3 2024

Shares 11,912 Value ($000) $1,089 Avg Close $83.06 Range $70.08 - $90.80

Q2 2024

Shares 7,100 Value ($000) $531 Avg Close $75.44 Range $70.99 - $79.58

Q1 2024

Shares 28,331 Value ($000) $2,230 Avg Close $67.28 Range $59.48 - $79.45

Q4 2023

Shares 28,329 Value ($000) $2,048 Avg Close $69.06 Range $62.00 - $72.73

Q3 2023

Shares 28,409 Value ($000) $1,946 Avg Close $71.95 Range $64.94 - $78.85

Q2 2023

Shares 28,409 Value ($000) $2,247 Avg Close $72.43 Range $66.60 - $76.55

Q1 2023

Shares 28,409 Value ($000) $2,207 Avg Close $67.95 Range $64.42 - $73.96

Q4 2022

Shares 28,408 Value ($000) $2,000 Avg Close $64.08 Range $57.39 - $69.26

Q3 2022

Shares 26,380 Value ($000) $1,732 Avg Close $72.70 Range $60.97 - $79.87

Q2 2022

Shares 26,230 Value ($000) $2,043 Avg Close $73.59 Range $68.07 - $78.29

Q1 2022

Shares 26,130 Value ($000) $2,086 Avg Close $69.83 Range $63.69 - $75.59

Q4 2021

Shares 26,080 Value ($000) $2,146 Avg Close $70.14 Range $65.70 - $75.65

Q3 2021

Shares 26,480 Value ($000) $1,948 Avg Close $71.14 Range $65.93 - $75.27

Q2 2021

Shares 10,810 Value ($000) $806 Avg Close $67.43 Range $63.48 - $70.23

Q1 2021

Shares 10,910 Value ($000) $780 Avg Close $60.60 Range $56.56 - $65.90

Q4 2020

Shares 10,208 Value ($000) $716 Avg Close $61.71 Range $55.58 - $66.52

Q3 2020

Shares 15,605 Value ($000) $978 Avg Close $57.65 Range $53.32 - $60.81

Q2 2020

Shares 12,205 Value ($000) $788 Avg Close $57.78 Range $49.69 - $64.40

Q1 2020

Shares 12,205 Value ($000) $800 Avg Close $65.70 Range $41.69 - $73.22

Q4 2019

Shares 5,805 Value ($000) $458 Avg Close $67.55 Range $63.34 - $70.99

Q3 2019

Shares 6,705 Value ($000) $536 Avg Close $65.28 Range $61.70 - $70.77

Q2 2019

Shares 7,705 Value ($000) $564 Avg Close $59.70 Range $55.69 - $66.61

Q1 2019

Shares 27,908 Value ($000) $1,897 Avg Close $54.99 Range $48.93 - $59.48

Q4 2018

Shares 43,909 Value ($000) $2,633 Avg Close $54.78 Range $48.85 - $59.46

Q3 2018

Shares 39,109 Value ($000) $2,498 Avg Close $55.46 Range $52.83 - $58.38

Q2 2018

Shares 42,709 Value ($000) $2,693 Avg Close $49.58 Range $46.44 - $54.28

Q1 2018

Shares 42,709 Value ($000) $2,396 Avg Close $48.13 Range $43.34 - $53.46

Q4 2017

Shares 54,309 Value ($000) $3,427 Avg Close $54.72 Range $51.82 - $57.19

Q3 2017

Shares 97,110 Value ($000) $6,274 Avg Close $54.16 Range $51.64 - $57.41

Q2 2017

Shares 95,110 Value ($000) $6,121 Avg Close $54.38 Range $52.06 - $57.32

Q1 2017

Shares 95,310 Value ($000) $6,196 Avg Close $52.46 Range $49.91 - $55.88

Q4 2016

Shares 95,311 Value ($000) $6,224 Avg Close $49.32 Range $44.04 - $55.33

Q3 2016

Shares 84,519 Value ($000) $4,777 Avg Close $46.22 Range $44.29 - $48.99

Q2 2016

Shares 20,811 Value ($000) $1,177 Avg Close $42.25 Range $39.00 - $46.30

Q1 2016

Shares 21,311 Value ($000) $1,114 Avg Close $39.96 Range $36.30 - $43.30

Q4 2015

Shares 39,024 Value ($000) $1,811 Avg Close $34.56 Range $31.50 - $38.24

Q3 2015

Shares 39,521 Value ($000) $1,628 Avg Close $31.61 Range $29.32 - $33.75

Q2 2015

Shares 56,230 Value ($000) $2,178 Avg Close $32.19 Range $29.09 - $35.91

Q1 2015

Shares 59,430 Value ($000) $2,634 Avg Close $35.01 Range $32.21 - $37.76

Q4 2014

Shares 59,938 Value ($000) $2,734 Avg Close $33.97 Range $29.13 - $37.78

Q3 2014

Shares 47,939 Value ($000) $1,787 Avg Close $30.43 Range $29.03 - $31.79

Q2 2014

Shares 48,439 Value ($000) $1,914 Avg Close $29.46 Range $27.99 - $30.75

Q1 2014

Shares 27,817 Value ($000) $1,092 Avg Close $29.37 Range $27.30 - $31.39

Q4 2013

Shares 12,308 Value ($000) $711 Avg Close $28.24 Range $26.59 - $29.81

Q3 2013

Shares 12,314 Value ($000) $672 Avg Close $28.25 Range $25.38 - $30.52

Q2 2013

Shares 12,314 Value ($000) $675 Avg Close $27.48 Range $26.21 - $28.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	27,074	$2,123	$81.88	$77.46 - $87.44
Q3 2025	27,278	$2,296	$84.55	$81.29 - $89.64
Q2 2025	20,390	$1,803	$88.71	$82.64 - $92.70
Q1 2025	20,497	$1,905	$89.24	$82.79 - $94.23
Q4 2024	20,497	$1,926	$94.30	$85.20 - $106.47
Q3 2024	11,912	$1,089	$83.06	$70.08 - $90.80
Q2 2024	7,100	$531	$75.44	$70.99 - $79.58
Q1 2024	28,331	$2,230	$67.28	$59.48 - $79.45
Q4 2023	28,329	$2,048	$69.06	$62.00 - $72.73
Q3 2023	28,409	$1,946	$71.95	$64.94 - $78.85
Q2 2023	28,409	$2,247	$72.43	$66.60 - $76.55
Q1 2023	28,409	$2,207	$67.95	$64.42 - $73.96
Q4 2022	28,408	$2,000	$64.08	$57.39 - $69.26
Q3 2022	26,380	$1,732	$72.70	$60.97 - $79.87
Q2 2022	26,230	$2,043	$73.59	$68.07 - $78.29
Q1 2022	26,130	$2,086	$69.83	$63.69 - $75.59
Q4 2021	26,080	$2,146	$70.14	$65.70 - $75.65
Q3 2021	26,480	$1,948	$71.14	$65.93 - $75.27
Q2 2021	10,810	$806	$67.43	$63.48 - $70.23
Q1 2021	10,910	$780	$60.60	$56.56 - $65.90
Q4 2020	10,208	$716	$61.71	$55.58 - $66.52
Q3 2020	15,605	$978	$57.65	$53.32 - $60.81
Q2 2020	12,205	$788	$57.78	$49.69 - $64.40
Q1 2020	12,205	$800	$65.70	$41.69 - $73.22
Q4 2019	5,805	$458	$67.55	$63.34 - $70.99
Q3 2019	6,705	$536	$65.28	$61.70 - $70.77
Q2 2019	7,705	$564	$59.70	$55.69 - $66.61
Q1 2019	27,908	$1,897	$54.99	$48.93 - $59.48
Q4 2018	43,909	$2,633	$54.78	$48.85 - $59.46
Q3 2018	39,109	$2,498	$55.46	$52.83 - $58.38
Q2 2018	42,709	$2,693	$49.58	$46.44 - $54.28
Q1 2018	42,709	$2,396	$48.13	$43.34 - $53.46
Q4 2017	54,309	$3,427	$54.72	$51.82 - $57.19
Q3 2017	97,110	$6,274	$54.16	$51.64 - $57.41
Q2 2017	95,110	$6,121	$54.38	$52.06 - $57.32
Q1 2017	95,310	$6,196	$52.46	$49.91 - $55.88
Q4 2016	95,311	$6,224	$49.32	$44.04 - $55.33
Q3 2016	84,519	$4,777	$46.22	$44.29 - $48.99
Q2 2016	20,811	$1,177	$42.25	$39.00 - $46.30
Q1 2016	21,311	$1,114	$39.96	$36.30 - $43.30
Q4 2015	39,024	$1,811	$34.56	$31.50 - $38.24
Q3 2015	39,521	$1,628	$31.61	$29.32 - $33.75
Q2 2015	56,230	$2,178	$32.19	$29.09 - $35.91
Q1 2015	59,430	$2,634	$35.01	$32.21 - $37.76
Q4 2014	59,938	$2,734	$33.97	$29.13 - $37.78
Q3 2014	47,939	$1,787	$30.43	$29.03 - $31.79
Q2 2014	48,439	$1,914	$29.46	$27.99 - $30.75
Q1 2014	27,817	$1,092	$29.37	$27.30 - $31.39
Q4 2013	12,308	$711	$28.24	$26.59 - $29.81
Q3 2013	12,314	$672	$28.25	$25.38 - $30.52
Q2 2013	12,314	$675	$27.48	$26.21 - $28.93