FirstEnergy Corp.
MX ˙ BMV ˙ US3379321074
SecurityMX:FE / FirstEnergy Corp.
InstitutionHeartland Advisors Inc
Latest Disclosed Ownership262,586 shares
Latest Disclosed Value $ 13,302,607
Heartland Advisors Inc reports 9.30% decrease in ownership of FE / FirstEnergy Corp.

On May 6, 2026 - Heartland Advisors Inc filed a 13F-HR form disclosing ownership of 262,586 shares of FirstEnergy Corp. (MX:FE) valued at $13,302,607 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 289,522 shares of FirstEnergy Corp.. This represents a change in shares of -9.30% 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)
2026-05-06 2026-03-31 13F FIRSTENERGY COM 337932107 262,586 -26,936 -9.30 13,303 2.63 0.6785
2026-02-11 2025-12-31 13F FIRSTENERGY COM 337932107 289,522 -35,334 -10.88 12,962 -12.92 0.6982
2025-11-07 2025-09-30 13F FIRSTENERGY COM 337932107 324,856 72,964 28.97 14,885 46.77 0.7864
2025-08-12 2025-06-30 13F FIRSTENERGY COM 337932107 251,892 -18,633 -6.89 10,141 -7.25 0.5654
2025-05-07 2025-03-31 13F FIRSTENERGY COM 337932107 270,525 -154,339 -36.33 10,935 -35.31 0.6279
2025-02-12 2024-12-31 13F FIRSTENERGY COM 337932107 424,864 -6,847 -1.59 16,901 -11.73 0.9185
2024-11-12 2024-09-30 13F FIRSTENERGY COM 337932107 431,711 -88,836 -17.07 19,146 -3.89 1.0039
2024-08-08 2024-06-30 13F FIRSTENERGY COM 337932107 520,547 -575 -0.11 19,921 -1.01 1.1150
2024-05-07 2024-03-31 13F FIRSTENERGY COM 337932107 521,122 37,316 7.71 20,126 13.47 1.0547
2024-02-08 2023-12-31 13F FIRSTENERGY COM 337932107 483,806 102,792 26.98 17,736 36.19 0.9269
2023-11-08 2023-09-30 13F FIRSTENERGY COM 337932107 381,014 -122,182 -24.28 13,023 -33.43 0.7318
2023-08-10 2023-06-30 13F FIRSTENERGY COM 337932107 503,196 181,857 56.59 19,564 51.99 1.1194
2023-05-11 2023-03-31 13F FIRSTENERGY COM 337932107 321,339 146,944 84.26 12,873 75.99 0.7955
2023-02-08 2022-12-31 13F FIRSTENERGY COM 337932107 174,395 41,109 30.84 7,314 48.30 0.4633
2022-11-10 2022-09-30 13F FIRSTENERGY COM 337932107 133,286 13,735 11.49 4,932 7.47 0.3687
2022-08-12 2022-06-30 13F FIRSTENERGY COM 337932107 119,551 -2,500 -2.05 4,589 -18.01 0.3189
2022-05-12 2022-03-31 13F FIRSTENERGY COM 337932107 122,051 -156,078 -56.12 5,597 -51.61 0.3472
2022-02-09 2021-12-31 13F FIRSTENERGY COM 337932107 278,129 62,623 29.06 11,567 50.69 0.6780
2021-11-09 2021-09-30 13F FIRSTENERGY COM 337932107 215,506 39,425 22.39 7,676 17.16 0.4629
2021-08-11 2021-06-30 13F FIRSTENERGY COM 337932107 176,081 8,500 5.07 6,552 12.71 0.3796
2021-05-12 2021-03-31 13F FIRSTENERGY COM 337932107 167,581 -1,981 -1.17 5,813 12.00 0.3674
2021-02-11 2020-12-31 13F FIRSTENERGY COM 337932107 169,562 -22,103 -11.53 5,190 -5.69 0.3707
2020-11-12 2020-09-30 13F FIRSTENERGY COM 337932107 191,665 159,920 503.76 5,503 347.03 0.4787
2020-08-12 2020-06-30 13F FIRSTENERGY COM 337932107 31,745 24,530 339.99 1,231 325.95 0.1096
2020-05-13 2020-03-31 13F FIRSTENERGY COM 337932107 7,215 -5 -0.07 289 -17.66 0.0309
2020-02-11 2019-12-31 13F FIRSTENERGY COM 337932107 7,220 -143,277 -95.20 351 -95.16 0.0259
2019-11-12 2019-09-30 13F FIRSTENERGY COM 337932107 150,497 -29,717 -16.49 7,258 -5.92 0.5539
2019-08-08 2019-06-30 13F FIRSTENERGY COM 337932107 180,214 -24,941 -12.16 7,715 -9.63 0.5672
2019-05-13 2019-03-31 13F FIRSTENERGY COM 337932107 205,155 576 0.28 8,537 11.13 0.6312
2019-02-12 2018-12-31 13F FIRSTENERGY COM 337932107 204,579 -23,831 -10.43 7,682 -9.52 0.6344
2018-11-08 2018-09-30 13F FIRSTENERGY COM 337932107 228,410 -970 -0.42 8,490 3.07 0.5668
2018-08-02 2018-06-30 13F FIRSTENERGY COM 337932107 229,380 69,856 43.79 8,237 51.83 0.5428
2018-05-10 2018-03-31 13F FIRSTENERGY COM 337932107 159,524 32,015 25.11 5,425 38.96 0.3637
2018-02-02 2017-12-31 13F FIRSTENERGY COM 337932107 127,509 -490 -0.38 3,904 -1.06 0.2511
2017-10-25 2017-09-30 13F FIRSTENERGY COM 337932107 127,999 118,248 1,212.68 3,946 1,289.44 0.2551
2017-08-08 2017-06-30 13F FIRSTENERGY COM 337932107 9,751 0 0.00 284 -8.39 0.0183
2017-05-01 2017-03-31 13F FIRSTENERGY COM 337932107 9,751 222 2.33 310 5.08 0.0189
2017-01-31 2016-12-31 13F FIRSTENERGY COM 337932107 9,529 768 8.77 295 1.72 0.0163
2016-11-04 2016-09-30 13F FIRSTENERGY COM 337932107 8,761 -2,784 -24.11 290 -28.04 0.0166
2016-08-04 2016-06-30 13F FIRSTENERGY COM 337932107 11,545 1,104 10.57 403 7.18 0.0227
2016-05-03 2016-03-31 13F FIRSTENERGY COM 337932107 10,441 -32,264 -75.55 376 -72.25 0.0197
2016-02-08 2015-12-31 13F FIRSTENERGY COM 337932107 42,705 -16,421 -27.77 1,355 -26.80 0.0543
2015-11-04 2015-09-30 13F FIRSTENERGY COM 337932107 59,126 1,360 2.35 1,851 -1.54 0.0678
2015-08-12 2015-06-30 13F FIRSTENERGY COM 337932107 57,766 47,159 444.60 1,880 405.38 0.0525
2015-05-12 2015-03-31 13F FIRSTENERGY COM 337932107 10,607 10,607 372 0.0093
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.