MGE Energy, Inc.
US ˙ NasdaqGS ˙ US55277P1049

SecurityMGEE / MGE Energy, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership5,902 shares
Latest Disclosed Value $ 456,166
Citigroup Inc reports 39.02% decrease in ownership of MGEE / MGE Energy, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 5,902 shares of MGE Energy, Inc. (US:MGEE) valued at $456,166 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 9,679 shares of MGE Energy, Inc.. This represents a change in shares of -39.02% during the quarter. The current value of the position is $435,922 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F MGE ENERGY COM 55277P104 5,902 -3,777 -39.02 456 -39.92 0.0001
2026-02-13 2025-12-31 13F MGE ENERGY COM 55277P104 9,679 -3,498 -26.55 759 -31.56 0.0003
2025-11-10 2025-09-30 13F MGE ENERGY COM 55277P104 13,177 -39,977 -75.21 1,109 -76.40 0.0005
2025-08-11 2025-06-30 13F MGE ENERGY COM 55277P104 53,154 -1,214 -2.23 4,701 -7.00 0.0023
2025-05-12 2025-03-31 13F MGE ENERGY COM 55277P104 54,368 -52,106 -48.94 5,054 -49.48 0.0026
2025-02-12 2024-12-31 13F MGE ENERGY COM 55277P104 106,474 62,434 141.77 10,004 148.42 0.0059
2024-11-12 2024-09-30 13F MGE ENERGY COM 55277P104 44,040 16,927 62.43 4,027 98.86 0.0023
2024-08-12 2024-06-30 13F MGE ENERGY COM 55277P104 27,113 2,325 9.38 2,026 3.79 0.0013
2024-05-10 2024-03-31 13F MGE ENERGY COM 55277P104 24,788 11,381 84.89 1,951 101.34 0.0013
2024-02-09 2023-12-31 13F MGE ENERGY COM 55277P104 13,407 4,957 58.66 969 67.65 0.0007
2023-12-06 2023-09-30 13F/A-1 MGE ENERGY COM 55277P104 8,450 -8,612 -50.47 579 -57.15 0.0004
2023-11-09 2023-09-30 13F MGE ENERGY COM 55277P104 8,450 -8,612 579 0.0002
2023-08-10 2023-06-30 13F MGE ENERGY COM 55277P104 17,062 15,899 1,367.07 1,350 1,398.89 0.0009
2023-05-11 2023-03-31 13F MGE ENERGY COM 55277P104 1,163 -151 -11.49 90 -2.17 0.0001
2023-02-09 2022-12-31 13F MGE ENERGY COM 55277P104 1,314 -1,035 -44.06 93 -40.26 0.0001
2022-11-10 2022-09-30 13F MGE ENERGY COM 55277P104 2,349 -1,211 -34.02 154 -44.60 0.0001
2022-08-10 2022-06-30 13F MGE ENERGY COM 55277P104 3,560 524 17.26 278 14.88 0.0002
2022-05-12 2022-03-31 13F MGE ENERGY COM 55277P104 3,036 -6,951 -69.60 242 -70.52 0.0001
2022-02-10 2021-12-31 13F MGE ENERGY COM 55277P104 9,987 3,597 56.29 821 74.68 0.0004
2021-11-10 2021-09-30 13F MGE ENERGY COM 55277P104 6,390 3,380 112.29 470 109.82 0.0003
2021-08-10 2021-06-30 13F MGE ENERGY COM 55277P104 3,010 -247 -7.58 224 -3.86 0.0001
2021-05-13 2021-03-31 13F MGE ENERGY COM 55277P104 3,257 -4,619 -58.65 233 -57.79 0.0002
2021-02-11 2020-12-31 13F MGE ENERGY COM 55277P104 7,876 5,098 183.51 552 217.24 0.0003
2020-11-12 2020-09-30 13F MGE ENERGY COM 55277P104 2,778 -8,801 -76.01 174 -76.71 0.0001
2020-08-12 2020-06-30 13F MGE ENERGY COM 55277P104 11,579 198 1.74 747 0.27 0.0006
2020-05-12 2020-03-31 13F MGE ENERGY COM 55277P104 11,381 -4,559 -28.60 745 -40.68 0.0007
2020-02-12 2019-12-31 13F MGE ENERGY COM 55277P104 15,940 12,842 414.53 1,256 408.50 0.0009
2019-11-08 2019-09-30 13F MGE ENERGY COM 55277P104 3,098 -6,478 -67.65 247 -64.66 0.0002
2019-08-12 2019-06-30 13F MGE ENERGY COM 55277P104 9,576 1,354 16.47 699 25.27 0.0006
2019-05-13 2019-03-31 13F MGE ENERGY COM 55277P104 8,222 -2,063 -20.06 558 -9.56 0.0005
2019-02-12 2018-12-31 13F MGE ENERGY COM 55277P104 10,285 264 2.63 617 -3.59 0.0006
2018-11-13 2018-09-30 13F MGE ENERGY COM 55277P104 10,021 5,578 125.55 640 128.57 0.0006
2018-08-10 2018-06-30 13F MGE ENERGY COM 55277P104 4,443 3,563 404.89 280 471.43 0.0003
2018-05-11 2018-03-31 13F MGE ENERGY COM 55277P104 880 -4,010 -82.00 49 -84.14 0.0000
2018-02-12 2017-12-31 13F MGE ENERGY COM 55277P104 4,890 4,432 967.69 309 930.00 0.0002
2017-11-13 2017-09-30 13F MGE ENERGY COM 55277P104 458 296 182.72 30 200.00 0.0000
2017-08-11 2017-06-30 13F MGE ENERGY COM 55277P104 162 -1,043 -86.56 10 -87.18 0.0000
2017-05-12 2017-03-31 13F MGE ENERGY COM 55277P104 1,205 -28,645 -95.96 78 -96.00 0.0001
2017-02-10 2016-12-31 13F MGE ENERGY COM 55277P104 29,850 29,143 4,122.07 1,950 4,775.00 0.0018
2016-11-10 2016-09-30 13F MGE ENERGY COM 55277P104 707 -4,936 -87.47 40 -87.46 0.0000
2016-08-12 2016-06-30 13F MGE ENERGY COM 55277P104 5,643 -25,611 -81.94 319 -80.47 0.0003
2016-05-13 2016-03-31 13F MGE ENERGY COM 55277P104 31,254 20,634 194.29 1,633 231.91 0.0018
2016-02-12 2015-12-31 13F MGE ENERGY COM 55277P104 10,620 7,149 205.96 492 244.06 0.0005
2015-11-13 2015-09-30 13F MGE ENERGY COM 55277P104 3,471 655 23.26 143 31.19 0.0001
2015-08-13 2015-06-30 13F MGE ENERGY COM 55277P104 2,816 -10,227 -78.41 109 -81.17 0.0001
2015-05-14 2015-03-31 13F MGE ENERGY COM 55277P104 13,043 -8,740 -40.12 579 -41.75 0.0006
2015-02-17 2014-12-31 13F MGE ENERGY COM 55277P104 21,783 11,296 107.71 994 154.87 0.0009
2014-11-14 2014-09-30 13F MGE ENERGY COM 55277P104 10,487 2,298 28.06 390 20.37 0.0003
2014-08-14 2014-06-30 13F MGE ENERGY COM 55277P104 8,189 -11,284 -57.95 324 -57.59 0.0003
2014-05-15 2014-03-31 13F MGE ENERGY COM 55277P104 19,473 2,314 13.49 764 -23.06 0.0008
2014-02-14 2013-12-31 13F MGE ENERGY COM 55277P104 17,159 9,937 137.59 993 152.03 0.0009
2013-11-14 2013-09-30 13F MGE ENERGY COM 55277P104 7,222 -6,524 -47.46 394 -47.68 0.0004
2013-08-14 2013-06-30 13F MGE ENERGY COM 55277P104 13,746 13,746 753 0.0007
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.