Constellation Energy Corporation
MX ˙ BMV ˙ US21037T1097
SecurityMX:CEG / Constellation Energy Corporation
InstitutionGuggenheim Capital Llc
Latest Disclosed Ownership145,070 shares
Latest Disclosed Value $ 40,510,814
Guggenheim Capital Llc reports 9.18% increase in ownership of CEG / Constellation Energy Corporation

On May 15, 2026 - Guggenheim Capital Llc filed a 13F-HR form disclosing ownership of 145,070 shares of Constellation Energy Corporation (MX:CEG) valued at $40,510,814 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 132,870 shares of Constellation Energy Corporation. This represents a change in shares of 9.18% 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)
2026-05-15 2026-03-31 13F CONSTELLATION ENERGY COM 21037T109 145,070 12,200 9.18 40,511 -13.69 0.1565
2026-02-17 2025-12-31 13F CONSTELLATION ENERGY COM 21037T109 132,870 2,329 1.78 46,939 9.27 0.1678
2025-11-13 2025-09-30 13F CONSTELLATION ENERGY COM 21037T109 130,541 6,279 5.05 42,957 7.11 0.2207
2025-08-13 2025-06-30 13F CONSTELLATION ENERGY COM 21037T109 124,262 19,228 18.31 40,107 89.38 0.3183
2025-05-14 2025-03-31 13F CONSTELLATION ENERGY COM 21037T109 105,034 -12,001 -10.25 21,178 -19.11 0.1945
2025-02-13 2024-12-31 13F CONSTELLATION ENERGY COM 21037T109 117,035 -4,074 -3.36 26,182 -16.86 0.2122
2024-11-13 2024-09-30 13F CONSTELLATION ENERGY COM 21037T109 121,109 -2,606 -2.11 31,491 27.10 0.2204
2024-08-14 2024-06-30 13F CONSTELLATION ENERGY COM 21037T109 123,715 791 0.64 24,776 9.04 0.1757
2024-05-14 2024-03-31 13F CONSTELLATION ENERGY COM 21037T109 122,924 -8,390 -6.39 22,723 48.04 0.1601
2024-02-14 2023-12-31 13F CONSTELLATION ENERGY COM 21037T109 131,314 6,845 5.50 15,349 13.05 0.1160
2023-11-14 2023-09-30 13F CONSTELLATION ENERGY COM 21037T109 124,469 12,978 11.64 13,577 33.02 0.1167
2023-08-11 2023-06-30 13F CONSTELLATION ENERGY COM 21037T109 111,491 9,719 9.55 10,207 27.76 0.0801
2023-05-11 2023-03-31 13F CONSTELLATION ENERGY COM 21037T109 101,772 -5,094 -4.77 7,989 -13.28 0.0672
2023-02-14 2022-12-31 13F CONSTELLATION ENERGY COM 21037T109 106,866 -63,449 -37.25 9,213 -34.98 0.0809
2022-11-14 2022-09-30 13F CONSTELLATION ENERGY COM 21037T109 170,315 -1,443 -0.84 14,169 44.07 0.1298
2022-08-15 2022-06-30 13F CONSTELLATION ENERGY COM 21037T109 171,758 -64,435 -27.28 9,835 -25.97 0.0776
2022-05-16 2022-03-31 13F CONSTELLATION ENERGY COM 21037T109 236,193 236,193 13,286 0.0799
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.