FirstEnergy Corp.
MX ˙ BMV ˙ US3379321074
SecurityMX:FE / FirstEnergy Corp.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership263,108 shares
Latest Disclosed Value $ 13,329,051
Renaissance Technologies Llc reports 76.48% decrease in ownership of FE / FirstEnergy Corp.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 263,108 shares of FirstEnergy Corp. (MX:FE) valued at $13,329,051 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,118,708 shares of FirstEnergy Corp.. This represents a change in shares of -76.48% during the quarter.

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)
2026-05-14 2026-03-31 13F FIRSTENERGY COM 337932107 263,108 -855,600 -76.48 13,329 -73.39 0.0208
2026-02-12 2025-12-31 13F FIRSTENERGY COM 337932107 1,118,708 -102,100 -8.36 50,085 -10.46 0.0777
2025-11-13 2025-09-30 13F FIRSTENERGY COM 337932107 1,220,808 302,608 32.96 55,937 51.32 0.0738
2025-08-13 2025-06-30 13F FIRSTENERGY COM 337932107 918,200 828,992 929.28 36,967 925.41 0.0492
2025-05-14 2025-03-31 13F FIRSTENERGY COM 337932107 89,208 -1,551,600 -94.56 3,606 -94.48 0.0055
2025-02-13 2024-12-31 13F FIRSTENERGY COM 337932107 1,640,808 888,800 118.19 65,271 95.71 0.0966
2024-11-13 2024-09-30 13F FIRSTENERGY COM 337932107 752,008 752,008 33,352 0.0502
2024-05-13 2024-03-31 13F FIRSTENERGY COM 337932107 0 -66,008 -100.00 0 -100.00
2024-02-13 2023-12-31 13F FIRSTENERGY COM 337932107 66,008 66,008 2 0.0037
2023-08-11 2023-06-30 13F FIRSTENERGY COM 337932107 0 -501,367 -100.00 0 -100.00
2023-05-12 2023-03-31 13F FIRSTENERGY COM 337932107 501,367 -271,800 -35.15 20 -37.50 0.0267
2023-02-13 2022-12-31 13F FIRSTENERGY COM 337932107 773,167 46,700 6.43 32 -99.88 0.0444
2022-11-14 2022-09-30 13F FIRSTENERGY COM 337932107 726,467 -337,000 -31.69 26,879 -34.16 0.0380
2022-08-12 2022-06-30 13F FIRSTENERGY COM 337932107 1,063,467 583,800 121.71 40,826 85.59 0.0483
2022-05-13 2022-03-31 13F FIRSTENERGY COM 337932107 479,667 -643,808 -57.31 21,998 -52.92 0.0258
2022-02-11 2021-12-31 13F FIRSTENERGY COM 337932107 1,123,475 -239,433 -17.57 46,725 -3.75 0.0581
2021-11-12 2021-09-30 13F FIRSTENERGY COM 337932107 1,362,908 1,225,200 889.71 48,547 847.44 0.0627
2021-08-13 2021-06-30 13F FIRSTENERGY COM 337932107 137,708 -183,500 -57.13 5,124 -54.02 0.0064
2021-05-13 2021-03-31 13F FIRSTENERGY COM 337932107 321,208 -1,241,300 -79.44 11,143 -76.70 0.0139
2021-02-10 2020-12-31 13F FIRSTENERGY COM 337932107 1,562,508 1,562,508 47,828 0.0519
2020-11-13 2020-09-30 13F FIRSTENERGY COM 337932107 0 -6,381,300 -100.00 0 -100.00
2020-08-13 2020-06-30 13F FIRSTENERGY COM 337932107 6,381,300 -5,653,108 -46.97 247,467 -48.68 0.2136
2020-05-14 2020-03-31 13F FIRSTENERGY COM 337932107 12,034,408 1,766,108 17.20 482,219 -3.37 0.4683
2020-02-13 2019-12-31 13F FIRSTENERGY COM 337932107 10,268,300 665,200 6.93 499,039 7.75 0.3835
2019-11-13 2019-09-30 13F FIRSTENERGY COM 337932107 9,603,100 1,027,100 11.98 463,158 26.15 0.3920
2019-08-12 2019-06-30 13F FIRSTENERGY COM 337932107 8,576,000 -1,496,908 -14.86 367,139 -12.41 0.3232
2019-05-14 2019-03-31 13F FIRSTENERGY COM 337932107 10,072,908 -2,108,192 -17.31 419,134 -8.37 0.3810
2019-02-12 2018-12-31 13F FIRSTENERGY COM 337932107 12,181,100 -131,208 -1.07 457,400 -0.05 0.5008
2018-11-13 2018-09-30 13F FIRSTENERGY COM 337932107 12,312,308 304,900 2.54 457,648 6.14 0.4705
2018-08-13 2018-06-30 13F/A-1 FIRSTENERGY COM 337932107 12,007,408 2,251,708 23.08 431,186 29.96 0.4700
2018-08-13 2018-06-30 13F FIRSTENERGY COM 337932107 9,755,700 331,791
2018-05-14 2018-03-31 13F FIRSTENERGY COM 337932107 9,755,700 364,292 3.88 331,791 15.38 0.3629
2018-02-13 2017-12-31 13F FIRSTENERGY COM 337932107 9,391,408 2,972,400 46.31 287,565 45.31 0.3170
2017-11-13 2017-09-30 13F FIRSTENERGY COM 337932107 6,419,008 485,008 8.17 197,898 14.37 0.2329
2017-08-11 2017-06-30 13F FIRSTENERGY COM 337932107 5,934,000 -175,108 -2.87 173,035 -10.99 0.2208
2017-05-12 2017-03-31 13F FIRSTENERGY COM 337932107 6,109,108 -632,992 -9.39 194,392 -6.90 0.2716
2017-02-13 2016-12-31 13F FIRSTENERGY COM 337932107 6,742,100 1,033,600 18.11 208,803 10.57 0.3303
2016-11-14 2016-09-30 13F FIRSTENERGY COM 337932107 5,708,500 1,682,692 41.80 188,837 34.36 0.3338
2016-08-12 2016-06-30 13F FIRSTENERGY COM 337932107 4,025,808 222,500 5.85 140,541 2.73 0.2675
2016-05-13 2016-03-31 13F FIRSTENERGY COM 337932107 3,803,308 153,300 4.20 136,805 18.12 0.2600
2016-02-11 2015-12-31 13F FIRSTENERGY COM 337932107 3,650,008 1,366,290 59.83 115,815 61.97 0.2524
2015-11-12 2015-09-30 13F FIRSTENERGY COM 337932107 2,283,718 949,718 71.19 71,503 64.67 0.1706
2015-08-14 2015-06-30 13F FIRSTENERGY COM 337932107 1,334,000 -65,100 -4.65 43,422 -11.48 0.0989
2015-05-13 2015-03-31 13F FIRSTENERGY COM 337932107 1,399,100 159,300 12.85 49,052 1.47 0.1045
2015-02-13 2014-12-31 13F FIRSTENERGY COM 337932107 1,239,800 1,097,000 768.21 48,340 908.34 0.1167
2014-11-12 2014-09-30 13F FIRSTENERGY COM 337932107 142,800 -443,008 -75.62 4,794 -76.43 0.0131
2014-08-13 2014-06-30 13F FIRSTENERGY COM 337932107 585,808 -208,900 -26.29 20,339 -24.79 0.0474
2014-05-14 2014-03-31 13F FIRSTENERGY COM 337932107 794,708 794,708 27,044 0.0649
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.