Exelon Corporation
AT ˙ WBAG ˙ US30161N1019
39,58 € ↑1,45 (3,80%)
2026-06-05
DEL PRIS
SecurityAT:EXEC / Exelon Corporation
InstitutionBrown Brothers Harriman & Co
Latest Disclosed Ownership19,559 shares
Latest Disclosed Value $ 958,782
Brown Brothers Harriman & Co reports 123.48% increase in ownership of EXEC / Exelon Corporation

On May 14, 2026 - Brown Brothers Harriman & Co filed a 13F-HR form disclosing ownership of 19,559 shares of Exelon Corporation (AT:EXEC) valued at $824,118 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 8,752 shares of Exelon Corporation. This represents a change in shares of 123.48% during the quarter. The current value of the position is $774,047 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)
2026-05-14 2026-03-31 13F EXELON Common Stock 30161N101 19,559 10,807 123.48 959 151.44 0.0051
2026-02-12 2025-12-31 13F EXELON Common Stock 30161N101 8,752 3,279 59.91 382 54.88 0.0021
2025-11-13 2025-09-30 13F EXELON Common Stock 30161N101 5,473 597 12.24 246 16.59 0.0015
2025-08-11 2025-06-30 13F EXELON Common Stock 30161N101 4,876 1,465 42.95 212 34.39 0.0014
2025-05-14 2025-03-31 13F EXELON Common Stock 30161N101 3,411 -687 -16.76 157 1.95 0.0011
2025-02-12 2024-12-31 13F EXELON Common Stock 30161N101 4,098 -155 -3.64 154 -10.47 0.0011
2024-11-13 2024-09-30 13F EXELON Common Stock 30161N101 4,253 211 5.22 172 23.74 0.0012
2024-08-09 2024-06-30 13F EXELON Common Stock 30161N101 4,042 -5 -0.12 140 -8.55 0.0011
2024-05-10 2024-03-31 13F EXELON Common Stock 30161N101 4,047 -180 -4.26 152 0.66 0.0012
2024-02-12 2023-12-31 13F EXELON Common Stock 30161N101 4,227 -251 -5.61 152 -10.65 0.0013
2023-11-13 2023-09-30 13F EXELON Common Stock 30161N101 4,478 0 0.00 169 -7.14 0.0015
2023-08-07 2023-06-30 13F EXELON Common Stock 30161N101 4,478 -7 -0.16 182 -2.67 0.0015
2023-05-11 2023-03-31 13F EXELON Common Stock 30161N101 4,485 132 3.03 188 -0.53 0.0016
2023-02-09 2022-12-31 13F EXELON Common Stock 30161N101 4,353 -42 -0.96 188 13.94 0.0016
2022-11-14 2022-09-30 13F EXELON Common Stock 30161N101 4,395 58 1.34 165 -16.24 0.0015
2022-08-11 2022-06-30 13F EXELON Common Stock 30161N101 4,337 295 7.30 197 2.07 0.0017
2022-05-13 2022-03-31 13F EXELON Common Stock 30161N101 4,042 82 2.07 193 -15.72 0.0014
2022-02-14 2021-12-31 13F EXELON Common Stock 30161N101 3,960 0 0.00 229 19.90 0.0013
2021-11-15 2021-09-30 13F EXELON Common Stock 30161N101 3,960 0 0.00 191 9.14 0.0011
2021-08-13 2021-06-30 13F EXELON Common Stock 30161N101 3,960 -3 -0.08 175 1.16 0.0010
2021-05-13 2021-03-31 13F EXELON Common Stock 30161N101 3,963 -40 -1.00 173 2.37 0.0011
2021-02-16 2020-12-31 13F EXELON Common Stock 30161N101 4,003 80 2.04 169 20.71 0.0011
2020-11-16 2020-09-30 13F EXELON Common Stock 30161N101 3,923 0 0.00 140 -1.41 0.0010
2020-08-13 2020-06-30 13F EXELON Common Stock 30161N101 3,923 -264 -6.31 142 -7.79 0.0011
2020-05-15 2020-03-31 13F EXELON Common Stock 30161N101 4,187 -1,026 -19.68 154 -35.29 0.0013
2020-02-14 2019-12-31 13F EXELON Common Stock 30161N101 5,213 -654 -11.15 238 -15.90 0.0015
2019-11-14 2019-09-30 13F EXELON Common Stock 30161N101 5,867 -107 -1.79 283 -1.05 0.0019
2019-08-14 2019-06-30 13F EXELON Common Stock 30161N101 5,974 -866 -12.66 286 -16.62 0.0019
2019-05-15 2019-03-31 13F EXELON Common Stock 30161N101 6,840 104 1.54 343 12.83 0.0024
2019-02-14 2018-12-31 13F EXELON Common Stock 30161N101 6,736 905 15.52 304 19.22 0.0023
2018-11-14 2018-09-30 13F EXELON Common Stock 30161N101 5,831 206 3.66 255 6.25 0.0016
2018-08-14 2018-06-30 13F EXELON Common Stock 30161N101 5,625 310 5.83 240 15.94 0.0015
2018-05-14 2018-03-31 13F EXELON Common Stock 30161N101 5,315 152 2.94 207 1.97 0.0012
2018-02-14 2017-12-31 13F EXELON Common Stock 30161N101 5,163 -6,679 -56.40 203 -54.48 0.0011
2017-11-14 2017-09-30 13F EXELON Common Stock 30161N101 11,842 -3,500 -22.81 446 -19.35 0.0024
2017-08-14 2017-06-30 13F EXELON Common Stock 30161N101 15,342 -138 -0.89 553 -0.72 0.0030
2017-05-12 2017-03-31 13F EXELON Common Stock 30161N101 15,480 252 1.65 557 3.15 0.0030
2017-02-14 2016-12-31 13F EXELON Common Stock 30161N101 15,228 0 0.00 540 6.51 0.0030
2016-11-14 2016-09-30 13F EXELON Common Stock 30161N101 15,228 500 3.39 507 -5.41 0.0027
2016-08-15 2016-06-30 13F EXELON Common Stock 30161N101 14,728 0 0.00 536 1.52 0.0028
2016-05-13 2016-03-31 13F EXELON Common Stock 30161N101 14,728 0 0.00 528 29.10 0.0027
2016-02-12 2015-12-31 13F EXELON Common Stock 30161N101 14,728 0 0.00 409 -6.41 0.0022
2015-11-13 2015-09-30 13F EXELON Common Stock 30161N101 14,728 9,940 207.60 437 191.33 0.0022
2015-08-14 2015-06-30 13F EXELON Common Stock 30161N101 4,788 46 0.97 150 -5.66 0.0007
2015-05-15 2015-03-31 13F EXELON Common Stock 30161N101 4,742 0 0.00 159 -9.66 0.0007
2015-02-13 2014-12-31 13F EXELON Common Stock 30161N101 4,742 0 0.00 176 8.64 0.0007
2014-11-14 2014-09-30 13F EXELON Common Stock 30161N101 4,742 -100 -2.07 162 -8.47 0.0007
2014-08-15 2014-06-30 13F EXELON Common Stock 30161N101 4,842 0 0.00 177 8.59 0.0007
2014-05-15 2014-03-31 13F EXELON Common Stock 30161N101 4,842 0 0.00 163 22.56 0.0007
2014-05-13 2013-12-31 13F/A-2 EXELON Common Stock 30161N101 4,842 0 0.00 133 -7.64 0.0006
2014-02-12 2013-12-31 13F EXELON Common Stock 30161N101 4,842 133
2013-11-14 2013-09-30 13F EXELON Common Stock 30161N101 4,842 0 0.00 144 -4.00 0.0007
2013-08-12 2013-06-30 13F EXELON Common 30161N101 4,842 -300 -5.83 150 -15.25 0.0007
2013-05-23 2013-03-31 13F/A-1 EXELON Common 30161N101 5,142 5,142 177 0.0009
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.