Constellation Energy Corporation
US ˙ NasdaqGS ˙ US21037T1097

SecurityCEG / Constellation Energy Corporation
InstitutionBarclays Plc
Latest Disclosed Ownership965,351 shares
Latest Disclosed Value $ 341,029,548
Barclays Plc ownership in CEG / Constellation Energy Corporation

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 965,351 shares of Constellation Energy Corporation (US:CEG) valued at $341,029,548 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 1,098,886 shares of Constellation Energy Corporation. This represents a change in shares of -12.15% during the quarter. The current value of the position is $257,980,401 USD.

Barclays 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 47,000 of underlying shares valued at $16,603,690 USD and put options representing 288,500 of underlying shares valued at $101,918,395 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.

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)
2026-02-13 2025-12-31 13F CONSTELLATION ENERGY COM 21037T109 965,351 -133,535 -12.15 341,030 -5.69 0.0818
2026-03-31 2025-09-30 13F/A-3 CONSTELLATION ENERGY COM 21037T109 1,098,886 90,827 9.01 361,610 11.14 0.0784
2026-03-19 2025-09-30 13F/A-2 CONSTELLATION ENERGY COM 21037T109 1,106,024 97,965 287,588 0.0763
2025-11-12 2025-09-30 13F CONSTELLATION ENERGY COM 21037T109 1,098,886 90,827 361,610 0.0784
2026-02-27 2025-06-30 13F/A-2 CONSTELLATION ENERGY COM 21037T109 1,008,059 -204,620 -16.87 325,361 33.07 0.0746
2025-08-14 2025-06-30 13F/A-1 CONSTELLATION ENERGY COM 21037T109 1,008,059 -204,620 325 0.0746
2025-08-13 2025-06-30 13F CONSTELLATION ENERGY COM 21037T109 1,008,059 -204,620 325 0.0243
2026-03-17 2025-03-31 13F/A-1 CONSTELLATION ENERGY COM 21037T109 1,212,679 488,158 67.38 244,512 50.86 0.0693
2025-05-15 2025-03-31 13F CONSTELLATION ENERGY COM 21037T109 1,212,679 488,158 245 0.0693
2026-03-19 2024-12-31 13F/A-1 CONSTELLATION ENERGY COM 21037T109 724,521 -381,503 -34.49 162,083 -43.64 0.0454
2025-02-13 2024-12-31 13F CONSTELLATION ENERGY COM 21037T109 724,521 -381,503 162 0.0454
2026-03-31 2024-09-30 13F/A-2 CONSTELLATION ENERGY COM 21037T109 1,106,024 53,462 5.08 287,588 36.43 0.0763
2024-11-19 2024-09-30 13F/A-1 CONSTELLATION ENERGY COM 21037T109 1,106,024 53,462 288 0.0763
2024-11-15 2024-09-30 13F CONSTELLATION ENERGY COM 21037T109 1,106,024 53,462 288 0.0232
2026-03-23 2024-06-30 13F/A-1 CONSTELLATION ENERGY COM 21037T109 1,052,562 -18,189 -1.70 210,797 6.50 0.0644
2024-08-14 2024-06-30 13F CONSTELLATION ENERGY COM 21037T109 1,052,562 -18,189 211 0.0644
2026-03-24 2024-03-31 13F/A-1 CONSTELLATION ENERGY COM 21037T109 1,070,751 -479,616 -30.94 197,928 9.22 0.0688
2024-05-15 2024-03-31 13F CONSTELLATION ENERGY COM 21037T109 1,070,751 -479,616 198 0.0688
2026-03-25 2023-12-31 13F/A-1 CONSTELLATION ENERGY COM 21037T109 1,550,367 723,131 87.42 181,222 100.84 0.0665
2024-02-15 2023-12-31 13F CONSTELLATION ENERGY COM 21037T109 1,550,367 723,131 181 0.0665
2026-03-26 2023-09-30 13F/A-1 CONSTELLATION ENERGY COM 21037T109 827,236 79,117 10.58 90,235 31.75 0.0562
2023-11-07 2023-09-30 13F CONSTELLATION ENERGY COM 21037T109 827,236 79,117 90 0.0562
2026-03-30 2023-06-30 13F/A-2 CONSTELLATION ENERGY COM 21037T109 748,119 10,730 1.46 68,490 18.32 0.0434
2023-09-20 2023-06-30 13F/A-1 CONSTELLATION ENERGY COM 21037T109 748,119 10,730 68 0.0434
2023-08-03 2023-06-30 13F CONSTELLATION ENERGY COM 21037T109 748,119 10,730 68 0.0432
2026-03-30 2023-03-31 13F/A-1 CONSTELLATION ENERGY COM 21037T109 737,389 232,525 46.06 57,885 33.00 0.0266
2023-05-04 2023-03-31 13F CONSTELLATION ENERGY COM 21037T109 737,389 232,525 58 0.0266
2026-03-30 2022-12-31 13F/A-1 CONSTELLATION ENERGY COM 21037T109 504,864 149,298 41.99 43,524 47.14 0.0195
2023-02-13 2022-12-31 13F CONSTELLATION ENERGY COM 21037T109 504,864 149,298 44 0.0195
2022-11-03 2022-09-30 13F CONSTELLATION ENERGY COM 21037T109 355,566 -73,357 -17.10 29,580 20.45 0.0323
2022-08-12 2022-06-30 13F CONSTELLATION ENERGY COM 21037T109 428,923 353 0.08 24,558 1.88 0.0150
2022-05-16 2022-03-31 13F CONSTELLATION ENERGY COM 21037T109 428,570 428,570 24,106 0.0189
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
(%)
2026-02-13 2025-12-31 13F CONSTELLATION ENERGY OPT Call 47,000 -20.61 16,604 -14.77 n/a n/a n/a
2026-03-31 2025-09-30 13F/A CONSTELLATION ENERGY OPT Call 59,200 -74.09 19,481 -73.59 n/a n/a n/a
2026-03-19 2025-09-30 13F/A CONSTELLATION ENERGY OPT Call 345,000 89,707 n/a n/a n/a
2025-11-12 2025-09-30 13F CONSTELLATION ENERGY OPT Call 59,200 19,481 n/a n/a n/a
2025-08-14 2025-06-30 13F/A CONSTELLATION ENERGY OPT Call 228,500 74 n/a n/a n/a
2026-02-27 2025-06-30 13F/A CONSTELLATION ENERGY OPT Call 228,500 2,185.00 73,751 3,558.23 n/a n/a n/a
2026-03-17 2025-03-31 13F/A CONSTELLATION ENERGY OPT Call 10,000 -97.41 2,016 -97.67 n/a n/a n/a
2025-05-15 2025-03-31 13F CONSTELLATION ENERGY OPT Call 10,000 2 n/a n/a n/a
2026-03-19 2024-12-31 13F/A CONSTELLATION ENERGY OPT Call 386,000 11.88 86,352 -3.74 n/a n/a n/a
2025-02-13 2024-12-31 13F CONSTELLATION ENERGY OPT Call 386,000 86 n/a n/a n/a
2024-11-19 2024-09-30 13F/A CONSTELLATION ENERGY OPT Call 345,000 90 n/a n/a n/a
2026-03-31 2024-09-30 13F/A CONSTELLATION ENERGY OPT Call 345,000 175.78 89,707 258.06 n/a n/a n/a
2024-11-15 2024-09-30 13F CONSTELLATION ENERGY OPT Call 345,000 90 n/a n/a n/a
2026-03-23 2024-06-30 13F/A CONSTELLATION ENERGY OPT Call 125,100 -14.93 25,054 -7.84 n/a n/a n/a
2024-08-14 2024-06-30 13F CONSTELLATION ENERGY OPT Call 125,100 25 n/a n/a n/a
2026-03-24 2024-03-31 13F/A CONSTELLATION ENERGY OPT Call 147,060 27,184 n/a n/a n/a
2024-05-15 2024-03-31 13F CONSTELLATION ENERGY OPT Call 147,060 27 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
(%)
2026-02-13 2025-12-31 13F CONSTELLATION ENERGY OPT Put 288,500 14.03 101,918 22.42 n/a n/a n/a
2026-03-31 2025-09-30 13F/A CONSTELLATION ENERGY OPT Put 253,000 -59.15 83,255 -58.35 n/a n/a n/a
2026-03-19 2025-09-30 13F/A CONSTELLATION ENERGY OPT Put 563,100 146,417 n/a n/a n/a
2025-11-12 2025-09-30 13F CONSTELLATION ENERGY OPT Put 253,000 83,255 n/a n/a n/a
2025-08-14 2025-06-30 13F/A CONSTELLATION ENERGY OPT Put 619,300 200 n/a n/a n/a
2026-02-27 2025-06-30 13F/A CONSTELLATION ENERGY OPT Put 619,300 -34.29 199,885 5.18 n/a n/a n/a
2026-03-17 2025-03-31 13F/A CONSTELLATION ENERGY OPT Put 942,500 -2.31 190,036 -11.95 n/a n/a n/a
2025-05-15 2025-03-31 13F CONSTELLATION ENERGY OPT Put 942,500 190 n/a n/a n/a
2026-03-19 2024-12-31 13F/A CONSTELLATION ENERGY OPT Put 964,800 71.34 215,835 47.41 n/a n/a n/a
2025-02-13 2024-12-31 13F CONSTELLATION ENERGY OPT Put 964,800 216 n/a n/a n/a
2024-11-19 2024-09-30 13F/A CONSTELLATION ENERGY OPT Put 563,100 146 n/a n/a n/a
2026-03-31 2024-09-30 13F/A CONSTELLATION ENERGY OPT Put 563,100 146,417 n/a n/a n/a
2024-11-15 2024-09-30 13F CONSTELLATION ENERGY OPT Put 563,100 146 n/a n/a n/a
2026-03-23 2024-06-30 13F/A CONSTELLATION ENERGY OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F CONSTELLATION ENERGY OPT Put 0 0 n/a n/a n/a
2026-03-24 2024-03-31 13F/A CONSTELLATION ENERGY OPT Put 11,100 2,052 n/a n/a n/a
2024-05-15 2024-03-31 13F CONSTELLATION ENERGY OPT Put 11,100 2 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.