FirstEnergy Corp.
MX ˙ BMV ˙ US3379321074
SecurityMX:FE / FirstEnergy Corp.
InstitutionCalamos Advisors LLC
Latest Disclosed Ownership173,992 shares
Latest Disclosed Value $ 8,814,435
Calamos Advisors LLC ownership in FE / FirstEnergy Corp.

On May 4, 2026 - Calamos Advisors LLC filed a 13F-HR form disclosing ownership of 173,992 shares of FirstEnergy Corp. (MX:FE) valued at $8,814,435 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 173,992 shares of FirstEnergy Corp.. This represents a change in shares of 0.00% 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)
2026-05-04 2026-03-31 13F FIRSTENERGY COM 337932107 173,992 0 0.00 8,814 13.16 0.0311
2026-01-29 2025-12-31 13F FIRSTENERGY COM 337932107 173,992 -7,065 -3.90 7,790 -6.11 0.0293
2025-10-20 2025-09-30 13F FIRSTENERGY COM 337932107 181,057 0 0.00 8,296 13.82 0.0306
2025-08-08 2025-06-30 13F FIRSTENERGY COM 337932107 181,057 0 0.00 7,289 -0.40 0.0287
2025-04-29 2025-03-31 13F FIRSTENERGY COM 337932107 181,057 2,016 1.13 7,318 2.75 0.0319
2025-01-24 2024-12-31 13F FIRSTENERGY COM 337932107 179,041 0 0.00 7,122 -10.30 0.0298
2024-11-07 2024-09-30 13F FIRSTENERGY COM 337932107 179,041 -4,393 -2.39 7,940 13.11 0.0343
2024-07-25 2024-06-30 13F FIRSTENERGY COM 337932107 183,434 -6,695 -3.52 7,020 -4.39 0.0312
2024-05-08 2024-03-31 13F FIRSTENERGY COM 337932107 190,129 -4,782 -2.45 7,343 2.76 0.0348
2024-01-31 2023-12-31 13F FIRSTENERGY COM 337932107 194,911 -2,547 -1.29 7,145 5.87 0.0347
2023-10-26 2023-09-30 13F FIRSTENERGY COM 337932107 197,458 0 0.00 6,749 -12.09 0.0351
2023-07-28 2023-06-30 13F FIRSTENERGY COM 337932107 197,458 0 0.00 7,677 -2.95 0.0380
2023-05-04 2023-03-31 13F FIRSTENERGY COM 337932107 197,458 -24,685 -11.11 7,910 -15.09 0.0386
2023-01-26 2022-12-31 13F FIRSTENERGY COM 337932107 222,143 -39,276 -15.02 9,317 -3.69 0.0437
2022-10-24 2022-09-30 13F FIRSTENERGY COM 337932107 261,419 0 0.00 9,673 -3.62 0.0442
2022-08-01 2022-06-30 13F FIRSTENERGY COM 337932107 261,419 7,040 2.77 10,036 -13.97 0.0433
2022-05-03 2022-03-31 13F FIRSTENERGY COM 337932107 254,379 33,907 15.38 11,666 27.23 0.0438
2022-02-01 2021-12-31 13F FIRSTENERGY COM 337932107 220,472 8,535 4.03 9,169 21.46 0.0343
2021-10-26 2021-09-30 13F FIRSTENERGY COM 337932107 211,937 18,701 9.68 7,549 4.99 0.0330
2021-07-22 2021-06-30 13F FIRSTENERGY COM 337932107 193,236 43,955 29.44 7,190 38.83 0.0329
2021-04-12 2021-03-31 13F FIRSTENERGY COM 337932107 149,281 4,614 3.19 5,179 16.96 0.0283
2021-01-27 2020-12-31 13F FIRSTENERGY COM 337932107 144,667 -6,265 -4.15 4,428 2.19 0.0257
2020-10-26 2020-09-30 13F FIRSTENERGY COM 337932107 150,932 -13,246 -8.07 4,333 -31.95 0.0279
2020-07-27 2020-06-30 13F FIRSTENERGY COM 337932107 164,178 -10,506 -6.01 6,367 -9.04 0.0450
2020-04-28 2020-03-31 13F FIRSTENERGY COM 337932107 174,684 -19,842 -10.20 7,000 -25.96 0.0549
2020-01-15 2019-12-31 13F FIRSTENERGY COMMON STOCK 337932107 194,526 -3,102 -1.57 9,454 -0.82 0.0467
2019-10-21 2019-09-30 13F FIRSTENERGY COMMON STOCK 337932107 197,628 16,734 9.25 9,532 23.09 0.0519
2019-08-07 2019-06-30 13F FIRSTENERGY COMMON STOCK 337932107 180,894 -19,925 -9.92 7,744 -7.32 0.0430
2019-04-12 2019-03-31 13F FIRSTENERGY COMMON STOCK 337932107 200,819 1,863 0.94 8,356 11.85 0.0521
2019-01-24 2018-12-31 13F FIRSTENERGY COMMON STOCK 337932107 198,956 29,088 17.12 7,471 18.32 0.0493
2018-10-22 2018-09-30 13F FIRSTENERGY COMMON STOCK 337932107 169,868 10,462 6.56 6,314 10.31 0.0347
2018-07-17 2018-06-30 13F FIRSTENERGY COMMON STOCK 337932107 159,406 18,540 13.16 5,724 19.47 0.0350
2018-04-13 2018-03-31 13F FIRSTENERGY COMMON STOCK 337932107 140,866 6,434 4.79 4,791 16.40 0.0312
2018-02-13 2017-12-31 13F FIRSTENERGY COMMON STOCK 337932107 134,432 -2,752 -2.01 4,116 -2.67 0.0210
2017-10-25 2017-09-30 13F FIRSTENERGY COMMON STOCK 337932107 137,184 9,489 7.43 4,229 13.56 0.0327
2017-08-09 2017-06-30 13F FIRSTENERGY COMMON STOCK 337932107 127,695 77,623 155.02 3,724 133.77 0.0275
2017-04-20 2017-03-31 13F FIRSTENERGY COMMON STOCK 337932107 50,072 -116 -0.23 1,593 2.51 0.0125
2017-02-06 2016-12-31 13F FIRSTENERGY COMMON STOCK 337932107 50,188 -673 -1.32 1,554 -7.61 0.0124
2016-11-14 2016-09-30 13F FIRSTENERGY COMMON STOCK 337932107 50,861 50 0.10 1,682 -5.19 0.0120
2016-07-26 2016-06-30 13F FIRSTENERGY COMMON STOCK 337932107 50,811 19 0.04 1,774 -2.90 0.0124
2016-04-25 2016-03-31 13F FIRSTENERGY COMMON STOCK 337932107 50,792 3,170 6.66 1,827 20.91 0.0121
2016-02-05 2015-12-31 13F FIRSTENERGY COMMON STOCK 337932107 47,622 0 0.00 1,511 1.34 0.0096
2015-11-10 2015-09-30 13F FIRSTENERGY COMMON STOCK 337932107 47,622 17 0.04 1,491 -3.81 0.0103
2015-08-14 2015-06-30 13F FIRSTENERGY COMMON STOCK 337932107 47,605 -2,686 -5.34 1,550 -12.08 0.0096
2015-05-13 2015-03-31 13F FIRSTENERGY COMMON STOCK 337932107 50,291 30 0.06 1,763 -10.05 0.0111
2015-02-13 2014-12-31 13F FIRSTENERGY COMMON STOCK 337932107 50,261 261 0.52 1,960 16.74 0.0130
2014-11-14 2014-09-30 13F FIRSTENERGY COMMON STOCK 337932107 50,000 0 0.00 1,679 -3.28 0.0112
2014-08-14 2014-06-30 13F FIRSTENERGY COMMON STOCK 337932107 50,000 0 0.00 1,736 2.00 0.0110
2014-05-16 2014-03-31 13F FIRSTENERGY COMMON STOCK 337932107 50,000 0 0.00 1,702 3.21 0.0109
2014-02-14 2013-12-31 13F FIRSTENERGY COMMON STOCK 337932107 50,000 0 0.00 1,649 -9.50 0.0105
2013-11-14 2013-09-30 13F FIRSTENERGY COMMON STOCK 337932107 50,000 15,000 42.86 1,822 39.40 0.0114
2013-08-12 2013-06-30 13F FIRSTENERGY COMMON STOCK 337932107 35,000 35,000 1,307 0.0085
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.