Constellation Energy Corporation
MX ˙ BMV ˙ US21037T1097
SecurityMX:CEG / Constellation Energy Corporation
InstitutionMan Group plc
Latest Disclosed Ownership166,689 shares
Latest Disclosed Value $ 46,547,903
Man Group plc ownership in CEG / Constellation Energy Corporation

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 166,689 shares of Constellation Energy Corporation (MX:CEG) valued at $46,547,903 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 34,385 shares of Constellation Energy Corporation. This represents a change in shares of 384.77% during the quarter.

Man Group plc has a history of taking positions in derivatives of the underlying security (CEG) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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 166,689 132,304 384.77 46,548 283.20 0.0844
2026-02-17 2025-12-31 13F CONSTELLATION ENERGY COM 21037T109 34,385 -18,317 -34.76 12,147 -29.96 0.0206
2025-11-14 2025-09-30 13F CONSTELLATION ENERGY COM 21037T109 52,702 -67,277 -56.07 17,343 -55.22 0.0302
2025-08-14 2025-06-30 13F CONSTELLATION ENERGY COM 21037T109 119,979 -3,555 -2.88 38,724 55.47 0.0738
2025-05-15 2025-03-31 13F CONSTELLATION ENERGY COM 21037T109 123,534 -249,887 -66.92 24,908 -70.18 0.0632
2025-02-14 2024-12-31 13F CONSTELLATION ENERGY COM 21037T109 373,421 135,549 56.98 83,538 35.06 0.2198
2024-11-14 2024-09-30 13F CONSTELLATION ENERGY COM 21037T109 237,872 75,478 46.48 61,851 90.18 0.1610
2024-08-14 2024-06-30 13F CONSTELLATION ENERGY COM 21037T109 162,394 152,880 1,606.90 32,523 1,749.94 0.0821
2024-05-15 2024-03-31 13F CONSTELLATION ENERGY COM 21037T109 9,514 -107,823 -91.89 1,759 -87.18 0.0044
2024-02-14 2023-12-31 13F CONSTELLATION ENERGY COM 21037T109 117,337 13,716 69.64 0.0382
2023-11-14 2023-09-30 13F CONSTELLATION ENERGY COM 21037T109 8,086 -21.41 0.0251
2023-08-14 2023-06-30 13F CONSTELLATION ENERGY COM 21037T109 112,372 10,288 -4.10 0.0317
2023-05-15 2023-03-31 13F CONSTELLATION ENERGY COM 21037T109 10,728 -27.00 0.0382
2023-02-14 2022-12-31 13F CONSTELLATION ENERGY COM 21037T109 170,467 -11,132 -6.13 14,696 -2.73 0.0527
2022-11-14 2022-09-30 13F CONSTELLATION ENERGY COM 21037T109 181,599 15,107 -37.96 0.0701
2022-08-15 2022-06-30 13F CONSTELLATION ENERGY COM 21037T109 24,350 50.47 0.1032
2022-05-16 2022-03-31 13F CONSTELLATION ENERGY COM 21037T109 287,713 287,713 16,183 0.0563
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 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F CONSTELLATION ENERGY COM Call 3,900 0.00 1,378 7.33 n/a n/a n/a
2025-11-14 2025-09-30 13F CONSTELLATION ENERGY COM Call 3,900 200.00 1,283 206.21 n/a n/a n/a
2025-08-14 2025-06-30 13F CONSTELLATION ENERGY COM Call 1,300 420 n/a n/a n/a
Disclosed Put 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 COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F CONSTELLATION ENERGY COM Put 3,900 0.00 1,378 7.33 n/a n/a n/a
2025-11-14 2025-09-30 13F CONSTELLATION ENERGY COM Put 3,900 200.00 1,283 206.21 n/a n/a n/a
2025-08-14 2025-06-30 13F CONSTELLATION ENERGY COM Put 1,300 420 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.