Constellation Energy Corporation
MX ˙ BMV ˙ US21037T1097
SecurityMX:CEG / Constellation Energy Corporation
InstitutionWebster Bank, N. A.
Latest Disclosed Ownership12,293 shares
Latest Disclosed Value $ 3,432,820
Webster Bank, N. A. reports 6,404.23% increase in ownership of CEG / Constellation Energy Corporation

On April 17, 2026 - Webster Bank, N. A. filed a 13F-HR form disclosing ownership of 12,293 shares of Constellation Energy Corporation (MX:CEG) valued at $3,432,820 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 189 shares of Constellation Energy Corporation. This represents a change in shares of 6,404.23% 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)
2026-04-17 2026-03-31 13F CONSTELLATION ENERGY COM 21037T109 12,293 12,104 6,404.23 3,433 5,100.00 0.3250
2026-01-23 2025-12-31 13F CONSTELLATION ENERGY COM 21037T109 189 116 158.90 67 175.00 0.0063
2025-10-23 2025-09-30 13F CONSTELLATION ENERGY COM 21037T109 73 50 217.39 24 242.86 0.0023
2025-07-08 2025-06-30 13F CONSTELLATION ENERGY COM 21037T109 23 -116 -83.45 7 -75.00 0.0008
2025-04-04 2025-03-31 13F CONSTELLATION ENERGY COM 21037T109 139 -395 -73.97 28 -76.47 0.0031
2025-01-22 2024-12-31 13F Constellation Energy COM 21037T109 534 0 0.00 119 -13.77 0.0128
2024-10-10 2024-09-30 13F Constellation Energy COM 21037T109 534 23 4.50 139 35.29 0.0148
2024-07-12 2024-06-30 13F Constellation Energy COM 21037T109 511 0 0.00 102 8.51 0.0112
2024-04-16 2024-03-31 13F Constellation Energy COM 21037T109 511 -29 -5.37 94 49.21 0.0106
2024-01-23 2023-12-31 13F Constellation Energy COM 21037T109 540 0 0.00 63 8.62 0.0077
2023-10-10 2023-09-30 13F Constellation Energy COM 21037T109 540 0 0.00 59 18.37 0.0080
2023-07-13 2023-06-30 13F Constellation Energy COM 21037T109 540 0 0.00 49 16.67 0.0064
2023-04-13 2023-03-31 13F Constellation Energy COM 21037T109 540 0 0.00 42 0.0055
2023-01-18 2022-12-31 13F Constellation Energy COM 21037T109 540 0 0.00 0 -100.00 0.0064
2022-10-24 2022-09-30 13F Constellation Energy COM 21037T109 540 0 0.00 45 45.16 0.0065
2022-07-12 2022-06-30 13F Constellation Energy None 21037T109 540 540 31 0.0042
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.