MGE ENERGY INC (MGEE) Top Institutional Shareholders
MGE ENERGY INC (MGEE) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $1.64B in MGEE holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of MGEE tracked by InsiderSet, reporting ownership valued at approximately $421.98M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $413.46M, representing an estimated loss of -2.02% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 70% of the total disclosed MGEE value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, State Street Corp, and several other long-term asset managers with concentrated positions in MGE ENERGY INC (MGEE).
This page ranks the largest institutional MGEE shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
313
Total Reported Value
$1.64B
Largest Holder
Blackrock, Inc.
Largest Position
$421.98M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
87
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 5,459,694 | $421,979,734 | $413,462,627 | -$8,517,107 | -2.02% | |
| Vanguard Portfolio Management Llc | 0.01% | 2,663,101 | $205,831,076 | $201,676,639 | -$4,154,437 | -2.02% | |
| State Street Corp | 0.01% | 1,918,678 | $148,294,623 | $145,301,485 | -$2,993,138 | -2.02% | |
| Vanguard Capital Management Llc | 0.00% | 1,641,026 | $126,834,900 | $124,274,899 | -$2,560,001 | -2.02% | |
| Geode Capital Management, Llc | 0.00% | 925,771 | $71,570,856 | $70,108,638 | -$1,462,218 | -2.04% | |
| Dimensional Fund Advisors Lp | 0.01% | 684,267 | $52,888,869 | $51,819,540 | -$1,069,329 | -2.02% | |
| First Trust Advisors Lp | 0.02% | 446,870 | $34,538,576 | $33,841,465 | -$697,111 | -2.02% | |
| Charles Schwab Investment Management Inc | 0.00% | 418,151 | $32,318,891 | $31,666,575 | -$652,316 | -2.02% | |
| Northern Trust Corp | 0.00% | 360,849 | $27,890,019 | $27,327,095 | -$562,924 | -2.02% | |
| Qube Research & Technologies Ltd | 0.04% | 330,037 | $25,508,560 | $24,993,702 | -$514,858 | -2.02% | |
| Bank Of New York Mellon Corp | 0.00% | 320,415 | $24,764,853 | $24,265,028 | -$499,825 | -2.02% | |
| Morgan Stanley | 0.00% | 306,393 | $23,681,245 | $23,203,142 | -$478,103 | -2.02% | |
| Deprince Race & Zollo Inc | 0.40% | 277,117 | $21,418,372 | $20,986,070 | -$432,302 | -2.02% | |
| Gabelli Funds Llc | 0.14% | 271,200 | $20,961,048 | $20,537,976 | -$423,072 | -2.02% | |
| Vanguard Fiduciary Trust Co | 0.00% | 246,323 | $19,038,305 | $18,654,041 | -$384,264 | -2.02% | |
| Goldman Sachs Group Inc | 0.00% | 226,486 | $17,505,109 | $17,151,785 | -$353,324 | -2.02% | |
| Silvercrest Asset Management Group Llc | 0.12% | 221,263 | $17,101,619 | $16,756,247 | -$345,372 | -2.02% | |
| Nuveen, Llc | 0.00% | 185,454 | $14,333,739 | $14,044,431 | -$289,308 | -2.02% | |
| Legal & General Group Plc | 0.00% | 182,530 | $14,107,742 | $13,822,997 | -$284,745 | -2.02% | |
| Principal Financial Group Inc | 0.01% | 178,194 | $13,772,615 | $13,494,632 | -$277,983 | -2.02% | |
| Millennium Management Llc | 0.01% | 169,646 | $13,111,939 | $12,847,292 | -$264,647 | -2.02% | |
| Two Sigma Investments, Lp | 0.01% | 169,074 | $13,067,729 | $12,803,974 | -$263,755 | -2.02% | |
| Tudor Investment Corp Et Al | 0.07% | 159,622 | $12,337,184 | $12,088,174 | -$249,010 | -2.02% | |
| Victory Capital Management Inc | 0.01% | 134,357 | $10,384,453 | $10,174,856 | -$209,597 | -2.02% | |
| Public Sector Pension Investment Board | 0.03% | 130,768 | $10,107,059 | $9,903,061 | -$203,998 | -2.02% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 122,768 | $9,488,739 | $9,297,221 | -$191,518 | -2.02% | |
| Invesco Ltd. | 0.00% | 116,213 | $8,982,102 | $8,800,810 | -$181,292 | -2.02% | |
| Bank Of America Corp | 0.00% | 99,834 | $7,716,169 | $7,560,429 | -$155,740 | -2.02% | |
| Rhumbline Advisers | 0.01% | 85,637 | $6,618,864 | $6,485,290 | -$133,574 | -2.02% | |
| Proshare Advisors Llc | 0.01% | 83,383 | $6,444,672 | $6,314,595 | -$130,077 | -2.02% | |
| Jane Street Group, Llc | 0.01% | 80,249 | $6,202,445 | $6,077,257 | -$125,188 | -2.02% | |
| Point72 Asset Management, L.P. | 0.01% | 80,070 | $6,188,610 | $6,063,701 | -$124,909 | -2.02% | |
| Marshall Wace, Llp | 0.01% | 79,327 | $6,131,184 | $6,007,434 | -$123,750 | -2.02% | |
| Commonwealth Of Pennsylvania Public School Empls Retrmt Sys | 0.03% | 74,605 | $5,766,221 | $5,649,837 | -$116,384 | -2.02% | |
| Swiss National Bank | 0.00% | 72,050 | $5,568,745 | $5,456,347 | -$112,399 | -2.02% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 68,207 | $5,271,718 | $5,165,316 | -$106,402 | -2.02% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 67,600 | $5,224,804 | $5,119,348 | -$105,456 | -2.02% |
| Ameriprise Financial Inc | 0.00% | 67,447 | $5,212,970 | $5,107,761 | -$105,209 | -2.02% | |
| Ubs Group Ag | 0.00% | 61,050 | $4,718,554 | $4,623,317 | -$95,238 | -2.02% | |
| Harbour Investments, Inc. | 0.07% | 59,747 | $4,617,869 | $4,524,640 | -$93,229 | -2.02% | |
| Deutsche Bank Ag\ | 0.00% | 45,640 | $3,527,516 | $3,456,317 | -$71,199 | -2.02% | |
| Citadel Advisors Llc | 0.00% | 44,911 | $3,471,171 | $3,401,110 | -$70,061 | -2.02% | |
| Bank Of Montreal | 0.00% | 44,565 | $3,444,429 | $3,374,907 | -$69,522 | -2.02% | |
| Alliancebernstein L.P. | 0.00% | 40,304 | $3,160,640 | $3,052,222 | -$108,418 | -3.43% | |
| Martingale Asset Management L P | 0.08% | 39,725 | $3,070,346 | $3,008,374 | -$61,972 | -2.02% | |
| Trexquant Investment Lp | 0.02% | 39,441 | $3,048,395 | $2,986,867 | -$61,528 | -2.02% | |
| Commonwealth Equity Services, Llc | 0.00% | 39,146 | $3,025,594 | $2,964,527 | -$61,067 | -2.02% | |
| Us Bancorp \De\ | 0.00% | 38,336 | $2,962,990 | $2,903,185 | -$59,805 | -2.02% | |
| Prudential Financial Inc | 0.00% | 37,239 | $2,878,202 | $2,820,109 | -$58,093 | -2.02% | |
| American Century Companies Inc | 0.00% | 35,463 | $2,740,935 | $2,685,613 | -$55,322 | -2.02% |
Frequently asked questions about MGEE
Who owns the most MGEE stock?
The largest holders of MGEE are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MGE ENERGY INC (MGEE).
Is MGEE widely held by superinvestors?
Many widely followed stocks like MGEE appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MGEE is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.