Exelon Corporation
AT ˙ WBAG ˙ US30161N1019
39,58 € ↑1,45 (3,80%)
2026-06-05
DEL PRIS
SecurityAT:EXEC / Exelon Corporation
InstitutionGrantham, Mayo, Van Otterloo & Co. LLC
Latest Disclosed Ownership147,679 shares
Latest Disclosed Value $ 7,239,225
Grantham, Mayo, Van Otterloo & Co. LLC reports 27.32% decrease in ownership of EXEC / Exelon Corporation

On May 14, 2026 - Grantham, Mayo, Van Otterloo & Co. LLC filed a 13F-HR form disclosing ownership of 147,679 shares of Exelon Corporation (AT:EXEC) valued at $6,222,455 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 203,178 shares of Exelon Corporation. This represents a change in shares of -27.32% during the quarter. The current value of the position is $5,844,396 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 COM 30161N101 147,679 -55,499 -27.32 7,239 -18.26 0.0185
2026-02-17 2025-12-31 13F EXELON COM 30161N101 203,178 -43,330 -17.58 8,857 -20.18 0.0226
2025-11-13 2025-09-30 13F EXELON COM 30161N101 246,508 -214,899 -46.57 11,095 -44.62 0.0313
2025-08-13 2025-06-30 13F EXELON COM 30161N101 461,407 231,210 100.44 20,034 88.88 0.0603
2025-05-14 2025-03-31 13F EXELON COM 30161N101 230,197 -17,572 -7.09 10,607 13.74 0.0334
2025-02-13 2024-12-31 13F EXELON COM 30161N101 247,769 54,932 28.49 9,326 19.27 0.0303
2024-11-13 2024-09-30 13F EXELON COM 30161N101 192,837 -1,600 -0.82 7,820 16.20 0.0245
2024-08-13 2024-06-30 13F EXELON COM 30161N101 194,437 -2,737 -1.39 6,729 -9.15 0.0227
2024-05-14 2024-03-31 13F EXELON COM 30161N101 197,174 11,313 6.09 7,408 11.02 0.0269
2024-02-13 2023-12-31 13F EXELON COM 30161N101 185,861 -6,578 -3.42 6,672 -8.25 0.0294
2023-11-13 2023-09-30 13F EXELON COM 30161N101 192,439 -921 -0.48 7,272 -7.68 0.0343
2023-08-14 2023-06-30 13F EXELON COM 30161N101 193,360 9,059 4.92 7,877 2.03 0.0365
2023-05-12 2023-03-31 13F EXELON COM 30161N101 184,301 -578,843 -75.85 7,720 -76.60 0.0393
2023-02-13 2022-12-31 13F EXELON COM 30161N101 763,144 94,900 14.20 32,991 31.79 0.1757
2022-11-10 2022-09-30 13F EXELON COM 30161N101 668,244 409,164 157.93 25,032 113.18 0.1444
2022-08-12 2022-06-30 13F EXELON COM 30161N101 259,080 -286 -0.11 11,742 -4.95 0.0636
2022-05-13 2022-03-31 13F EXELON COM 30161N101 259,366 83,035 47.09 12,354 21.30 0.0596
2022-02-11 2021-12-31 13F EXELON COM 30161N101 176,331 -268,638 -60.37 10,185 -52.65 0.0489
2021-11-12 2021-09-30 13F EXELON COM 30161N101 444,969 -274,700 -38.17 21,510 -32.55 0.1064
2021-08-12 2021-06-30 13F EXELON COM 30161N101 719,669 104,518 16.99 31,889 18.52 0.1591
2021-05-13 2021-03-31 13F EXELON CO 30161N101 615,151 95,500 18.38 26,907 22.64 0.1470
2021-02-12 2020-12-31 13F EXELON COM 30161N101 519,651 435,301 516.07 21,940 627.45 0.1348
2020-11-13 2020-09-30 13F EXELON COM 30161N101 84,350 9,850 13.22 3,016 11.54 0.0215
2020-08-13 2020-06-30 13F EXELON COM 30161N101 74,500 25,700 52.66 2,704 50.56 0.0201
2020-05-14 2020-03-31 13F EXELON COM 30161N101 48,800 -7,400 -13.17 1,796 -29.90 0.0150
2020-02-13 2019-12-31 13F EXELON COM 30161N101 56,200 -15,100 -21.18 2,562 -25.63 0.0171
2019-11-13 2019-09-30 13F EXELON COM 30161N101 71,300 -19,800 -21.73 3,445 -21.11 0.0239
2019-08-13 2019-06-30 13F EXELON COM 30161N101 91,100 -230,900 -71.71 4,367 -72.95 0.0307
2019-05-14 2019-03-31 13F EXELON COM 30161N101 322,000 255,600 384.94 16,142 438.96 0.1161
2019-02-13 2018-12-31 13F EXELON COM 30161N101 66,400 31,900 92.46 2,995 98.87 0.0239
2018-11-14 2018-09-30 13F EXELON COM 30161N101 34,500 1,500 4.55 1,506 7.11 0.0102
2018-08-14 2018-06-30 13F EXELON COM 30161N101 33,000 13,400 68.37 1,406 83.79 0.0100
2018-05-15 2018-03-31 13F EXELON COM 30161N101 19,600 -287,100 -93.61 765 -93.67 0.0047
2018-02-14 2017-12-31 13F EXELON COM 30161N101 306,700 -400 -0.13 12,087 4.49 0.0713
2017-11-14 2017-09-30 13F EXELON COM 30161N101 307,100 293,600 2,174.81 11,568 2,275.36 0.0676
2017-08-14 2017-06-30 13F EXELON COM 30161N101 13,500 13,500 487 0.0027
2014-11-13 2014-09-30 13F EXELON COM 30161N101 0 -5,513 -100.00 0 -100.00
2014-08-13 2014-06-30 13F EXELON COM 30161N101 5,513 -191,127 -97.20 201 -96.95 0.0005
2014-05-14 2014-03-31 13F EXELON COM 30161N101 196,640 -171,533 -46.59 6,599 -34.56 0.0172
2014-02-13 2013-12-31 13F EXELON COM 30161N101 368,173 86,673 30.79 10,084 20.85 0.0245
2013-11-14 2013-09-30 13F EXELON COM 30161N101 281,500 88,600 45.93 8,344 40.07 0.0220
2013-08-13 2013-06-30 13F EXELON COM 30161N101 192,900 192,900 5,957 0.0155
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.