MGE 에너지, Inc.
US ˙ NasdaqGS ˙ US55277P1049

SecurityMGEE / MGE Energy, Inc.
InstitutionBessemer Group Inc
Latest Disclosed Ownership222 shares
Latest Disclosed Value $ 17
Bessemer Group Inc reports 161.18% increase in ownership of MGEE / MGE Energy, Inc.

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 222 shares of MGE Energy, Inc. (US:MGEE) valued at $17,158 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 85 shares of MGE Energy, Inc.. The current value of the position is $16,797 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-06 2026-03-31 13F MGE ENERGY SC 55277P104 222 137 161.18 0 0.0000
2026-02-05 2025-12-31 13F MGE ENERGY SC 55277P104 85 5 6.25 0 0.0000
2025-11-05 2025-09-30 13F MGE ENERGY SC 55277P104 80 2 2.56 0 0.0000
2025-08-01 2025-06-30 13F MGE ENERGY SC 55277P104 78 61 358.82 0 0.0000
2025-04-23 2025-03-31 13F MGE ENERGY SC 55277P104 17 -97 -85.09 0 0.0000
2025-02-13 2024-12-31 13F MGE ENERGY SC 55277P104 114 45 65.22 0 0.0000
2024-11-12 2024-09-30 13F MGE ENERGY SC 55277P104 69 14 25.45 0 0.0000
2024-08-13 2024-06-30 13F MGE ENERGY SC 55277P104 55 55 0 0.0000
2019-07-19 2019-06-30 13F MGE ENERGY SC 55277P104 0 -6,200 -100.00 0 -100.00
2019-05-13 2019-03-31 13F MGE ENERGY SC 55277P104 6,200 -4,334 -41.14 421 -33.39 0.0016
2019-05-21 2018-12-31 13F/A-1 MGE ENERGY SC 55277P104 10,534 4,800 83.71 632 72.21 0.0028
2019-02-12 2018-12-31 13F MGE ENERGY SC 55277P104 10,534 4,800 632 0.0028
2018-11-06 2018-09-30 13F MGE ENERGY SC 55277P104 5,734 -266 -4.43 367 -2.91 0.0014
2018-07-25 2018-06-30 13F MGE ENERGY SC 55277P104 6,000 0 0.00 378 12.17 0.0015
2018-05-10 2018-03-31 13F MGE ENERGY SC 55277P104 6,000 1,300 27.66 337 13.47 0.0013
2018-01-30 2017-12-31 13F MGE ENERGY SC 55277P104 4,700 -35,519 -88.31 297 -88.57 0.0012
2017-11-03 2017-09-30 13F MGE ENERGY SC 55277P104 40,219 700 1.77 2,599 2.16 0.0104
2017-07-27 2017-06-30 13F MGE ENERGY SC 55277P104 39,519 319 0.81 2,544 -0.16 0.0103
2017-05-12 2017-03-31 13F MGE ENERGY SC 55277P104 39,200 0 0.00 2,548 -0.47 0.0106
2017-02-07 2016-12-31 13F MGE ENERGY SC 55277P104 39,200 6,700 20.62 2,560 39.36 0.0118
2016-11-10 2016-09-30 13F MGE ENERGY SC 55277P104 32,500 30,753 1,760.33 1,837 1,774.49 0.0092
2016-08-11 2016-06-30 13F MGE ENERGY SC 55277P104 1,747 544 45.22 98 55.56 0.0005
2016-05-11 2016-03-31 13F MGE ENERGY SC 55277P104 1,203 1,203 63 0.0004
2016-02-12 2015-12-31 13F MGE ENERGY SC 55277P104 0 0 0 0.0000
2015-08-14 2015-06-30 13F MGE ENERGY SC 55277P104 0 -132 -100.00 0 -100.00
2015-06-18 2015-03-31 13F/A-1 MGE ENERGY SC 55277P104 132 132 6 0.0000
2015-05-14 2015-03-31 13F MGE ENERGY SC 55277P104 132 6
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.