Constellation Energy Corporation
MX ˙ BMV ˙ US21037T1097
SecurityMX:CEG / Constellation Energy Corporation
InstitutionMAI Capital Management
Latest Disclosed Ownership17,767 shares
Latest Disclosed Value $ 4,961,475
MAI Capital Management ownership in CEG / Constellation Energy Corporation

On May 15, 2026 - MAI Capital Management filed a 13F-HR form disclosing ownership of 17,767 shares of Constellation Energy Corporation (MX:CEG) valued at $4,961,475 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 17,580 shares of Constellation Energy Corporation. This represents a change in shares of 1.06% during the quarter.

MAI Capital Management has a history of taking positions in derivatives of the underlying security (CEG) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:CEG / Constellation Energy Corporation Historical Put/Call Ratio
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 17,767 187 1.06 4,961 -20.11 0.0280
2026-02-13 2025-12-31 13F CONSTELLATION ENERGY COM 21037T109 17,580 1,564 9.77 6,210 17.84 0.0357
2025-11-10 2025-09-30 13F CONSTELLATION ENERGY COM 21037T109 16,016 570 3.69 5,270 5.72 0.0328
2025-08-12 2025-06-30 13F CONSTELLATION ENERGY COM 21037T109 15,446 506 3.39 4,985 65.50 0.0344
2025-05-15 2025-03-31 13F CONSTELLATION ENERGY COM 21037T109 14,940 126 0.85 3,012 -9.11 0.0227
2025-02-14 2024-12-31 13F CONSTELLATION ENERGY COM 21037T109 14,814 2,640 21.69 3,314 4.71 0.0246
2024-11-07 2024-09-30 13F Constellation Energy CS 21037T109 12,174 -260 -2.09 3,166 27.11 0.0301
2024-08-12 2024-06-30 13F Constellation Energy CS 21037T109 12,434 -415 -3.23 2,490 4.84 0.0244
2024-05-08 2024-03-31 13F Constellation Energy CS 21037T109 12,849 1,268 10.95 2,375 75.54 0.0246
2024-02-09 2023-12-31 13F Constellation Energy CS 21037T109 11,581 484 4.36 1,354 11.82 0.0178
2023-11-14 2023-09-30 13F Constellation Energy CS 21037T109 11,097 1,837 19.84 1,210 42.86 0.0180
2023-08-02 2023-06-30 13F Constellation Energy CS 21037T109 9,260 -156 -1.66 848 14.61 0.0125
2023-05-10 2023-03-31 13F Constellation Energy CS 21037T109 9,416 160 1.73 739 -7.28 0.0116
2023-02-09 2022-12-31 13F Constellation Energy CS 21037T109 9,256 4,354 88.82 798 95.34 0.0134
2022-11-15 2022-09-30 13F Constellation Energy CS 21037T109 4,902 279 6.04 408 53.96 0.0077
2022-07-19 2022-06-30 13F Constellation Energy CS 21037T109 4,623 -227 -4.68 265 -2.93 0.0051
2022-05-10 2022-03-31 13F Constellation Energy CS 21037T109 4,850 4,850 273 0.0046
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F CONSTELLATION ENERGY CALL Call 28 -22.86 n/a n/a n/a
2026-02-13 2025-12-31 13F CONSTELLATION ENERGY CALL Call 35 9.38 n/a n/a n/a
2025-11-10 2025-09-30 13F CONSTELLATION ENERGY CALL Call 33 0.00 n/a n/a n/a
2025-08-12 2025-06-30 13F CONSTELLATION ENERGY CALL Call 32 60.00 n/a n/a n/a
2025-05-15 2025-03-31 13F CONSTELLATION ENERGY CALL Call 20 n/a n/a n/a
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.