Exelon Corporation
US ˙ NasdaqGS ˙ US30161N1019

SecurityEXC / Exelon Corporation
InstitutionSIR Capital Management, L.P.
Latest Disclosed Ownership129,229 shares
Latest Disclosed Value $ 6,334,806
SIR Capital Management, L.P. reports 38.64% decrease in ownership of EXC / Exelon Corporation

On May 15, 2026 - SIR Capital Management, L.P. filed a 13F-HR form disclosing ownership of 129,229 shares of Exelon Corporation (US:EXC) valued at $6,334,806 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 210,600 shares of Exelon Corporation. This represents a change in shares of -38.64% during the quarter. The current value of the position is $5,825,643 USD.

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 EXELON COM 30161N101 129,229 -81,371 -38.64 6,335 -31.00 0.5915
2026-02-13 2025-12-31 13F EXELON COM 30161N101 210,600 -109,800 -34.27 9,180 -36.34 1.0157
2025-11-14 2025-09-30 13F EXELON COM 30161N101 320,400 -28,100 -8.06 14,421 -4.69 1.2934
2025-08-12 2025-06-30 13F EXELON COM 30161N101 348,500 348,500 15,132 1.3498
2025-05-15 2025-03-31 13F EXELON COM 30161N101 0 -435,014 -100.00 0 -100.00
2025-02-14 2024-12-31 13F EXELON COM 30161N101 435,014 149,200 52.20 16,374 41.28 1.6881
2024-11-14 2024-09-30 13F EXELON COM 30161N101 285,814 285,814 11,590 1.1270
2016-02-12 2015-12-31 13F EXELON COM 30161N101 0 -197,300 -100.00 0 -100.00
2015-11-16 2015-09-30 13F EXELON COM 30161N101 197,300 63,200 47.13 5,860 39.09 0.7074
2015-08-14 2015-06-30 13F EXELON COM 30161N101 134,100 46,200 52.56 4,213 42.62 0.5006
2015-05-15 2015-03-31 13F EXELON COM 30161N101 87,900 87,900 2,954 0.4162
2015-02-17 2014-12-31 13F EXELON COM 30161N101 0 -59,600 -100.00 0 -100.00
2014-11-14 2014-09-30 13F EXELON COM 30161N101 59,600 -101,500 -63.00 2,032 -65.42 0.3621
2014-08-14 2014-06-30 13F EXELON COM 30161N101 161,100 129,300 406.60 5,877 450.80 0.7772
2014-05-15 2014-03-31 13F EXELON COM 30161N101 31,800 31,800 1,067 0.1635
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.