Constellation Energy Corporation
MX ˙ BMV ˙ US21037T1097
SecurityMX:CEG / Constellation Energy Corporation
InstitutionGabelli Funds Llc
Latest Disclosed Ownership75,787 shares
Latest Disclosed Value $ 21,163,520
Gabelli Funds Llc reports 1.03% decrease in ownership of CEG / Constellation Energy Corporation

On May 14, 2026 - Gabelli Funds Llc filed a 13F-HR form disclosing ownership of 75,787 shares of Constellation Energy Corporation (MX:CEG) valued at $21,163,520 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 76,577 shares of Constellation Energy Corporation. This represents a change in shares of -1.03% 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.

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)
2026-05-14 2026-03-31 13F CONSTELLATION ENERGY EQUITY 21037T109 75,787 -790 -1.03 21,164 -21.77 0.1429
2026-02-05 2025-12-31 13F CONSTELLATION ENERGY EQUITY 21037T109 76,577 -1,440 -1.85 27,052 5.37 0.1831
2025-11-12 2025-09-30 13F CONSTELLATION ENERGY EQUITY 21037T109 78,017 -800 -1.02 25,673 0.92 0.1738
2025-08-13 2025-06-30 13F CONSTELLATION ENERGY EQUITY 21037T109 78,817 -3,050 -3.73 25,439 54.11 0.1806
2025-05-14 2025-03-31 13F CONSTELLATION ENERGY EQUITY 21037T109 81,867 -4,200 -4.88 16,507 -14.27 0.1258
2025-02-13 2024-12-31 13F CONSTELLATION ENERGY EQUITY 21037T109 86,067 -3,600 -4.01 19,254 -17.42 0.1446
2024-11-13 2024-09-30 13F CONSTELLATION ENERGY EQUITY 21037T109 89,667 -6,400 -6.66 23,315 21.19 0.1680
2024-08-13 2024-06-30 13F CONSTELLATION ENERGY EQUITY 21037T109 96,067 -6,550 -6.38 19,239 1.43 0.1461
2024-05-14 2024-03-31 13F CONSTELLATION ENERGY EQUITY 21037T109 102,617 -10,750 -9.48 18,969 43.14 0.1397
2024-02-13 2023-12-31 13F CONSTELLATION ENERGY EQUITY 21037T109 113,367 -2,666 -2.30 13,251 4.70 0.1020
2023-11-08 2023-09-30 13F CONSTELLATION ENERGY EQUITY 21037T109 116,033 -5,000 -4.13 12,657 14.22 0.1027
2023-08-10 2023-06-30 13F CONSTELLATION ENERGY EQUITY 21037T109 121,033 0 0.00 11,081 16.62 0.0840
2023-05-12 2023-03-31 13F CONSTELLATION ENERGY EQUITY 21037T109 121,033 0 0.00 9,501 -8.94 0.0720
2023-02-13 2022-12-31 13F CONSTELLATION ENERGY EQUITY 21037T109 121,033 0 0.00 10,434 3.62 0.0811
2022-11-14 2022-09-30 13F/A-1 CONSTELLATION ENERGY CORP COM COM 21037T109 121,033 -5,300 -4.20 10,069 39.19 0.0830
2022-11-10 2022-09-30 13F CONSTELLATION ENERGY CORP COM COM 21037T109 121,033 -5,300 10,069 0.0830
2022-08-12 2022-06-30 13F CONSTELLATION ENERGY CORP COM COM 21037T109 126,333 -1,687 -1.32 7,234 0.46 0.0555
2022-05-18 2022-03-31 13F/A-1 CONSTELLATION ENERGY CORP COM COM 21037T109 128,020 128,020 7,201 0.0473
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.