American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionRockefeller Capital Management L.P.
Latest Disclosed Ownership367,009 shares
Latest Disclosed Value $ 48,107,655
Rockefeller Capital Management L.P. reports 4.07% increase in ownership of AEP / American Electric Power Company, Inc.

On May 14, 2026 - Rockefeller Capital Management L.P. filed a 13F-HR form disclosing ownership of 367,009 shares of American Electric Power Company, Inc. (MX:AEP) valued at $48,107,655 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 16, 2026 disclosing 352,658 shares of American Electric Power Company, Inc.. This represents a change in shares of 4.07% 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)
2026-05-14 2026-03-31 13F AMERICAN ELEC PWR COM 025537101 367,009 14,351 4.07 48,108 18.30 0.0442
2026-03-16 2025-12-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 352,658 81,272 29.95 40,665 33.19 0.0732
2026-02-14 2025-12-31 13F AMERICAN ELEC PWR COM 025537101 354,844 83,458 40,714 0.0372
2025-11-14 2025-09-30 13F AMERICAN ELEC PWR COM 025537101 271,386 3,757 1.40 30,531 9.95 0.0597
2025-08-14 2025-06-30 13F/A-1 AMERICAN ELEC PWR COM 025537101 267,629 28,488 11.91 27,769 6.27 0.0609
2025-08-08 2025-06-30 13F AMERICAN ELEC PWR COM 025537101 267,629 28,488 27,769 0.0350
2025-05-14 2025-03-31 13F AMERICAN ELEC PWR COM 025537101 239,141 131,762 122.71 26,131 163.87 0.0645
2025-02-13 2024-12-31 13F AMERICAN ELEC PWR COM 025537101 107,379 -7,188 -6.27 9,903 -15.74 0.0256
2024-11-14 2024-09-30 13F AMERICAN ELEC PWR COM 025537101 114,567 6,928 6.44 11,753 24.45 0.0316
2024-08-12 2024-06-30 13F AMERICAN ELEC PWR COM 025537101 107,639 -16,892 -13.56 9,444 -11.92 0.0268
2024-05-14 2024-03-31 13F AMERICAN ELEC PWR COM 025537101 124,531 -5,105 -3.94 10,722 1.83 0.0313
2024-02-14 2023-12-31 13F AMERICAN ELEC PWR COM 025537101 129,636 -34,772 -21.15 10,529 -14.86 0.0352
2023-11-14 2023-09-30 13F AMERICAN ELEC PWR COM 025537101 164,408 -40,249 -19.67 12,367 -28.24 0.0477
2023-08-14 2023-06-30 13F AMERICAN ELEC PWR COM 025537101 204,657 -17,900 -8.04 17,232 86,060.00 0.0667
2023-05-16 2023-03-31 13F AMERICAN ELEC PWR COM 025537101 222,557 7,269 3.38 20 -99.90 0.0871
2023-03-06 2022-12-31 13F AMERICAN ELEC PWR COM 025537101 215,288 -23,855 -9.98 20,440 -1.12 0.1027
2022-11-02 2022-09-30 13F AMERICAN ELEC PWR COM 025537101 239,143 92,415 62.98 20,672 46.86 0.1068
2022-08-12 2022-06-30 13F AMERICAN ELEC PWR COM 025537101 146,728 -7,135 -4.64 14,076 -8.29 0.0748
2022-05-13 2022-03-31 13F AMERICAN ELEC PWR COM 025537101 153,863 153,432 35,599.07 15,349 72,990.48 0.0740
2022-02-14 2021-12-31 13F AMERICAN ELEC PWR UNIT 08/01/2021 025537127 431 0 0.00 21 5.00 0.0001
2022-02-14 2021-12-31 13F AMERICAN ELEC PWR COM 025537101 152,867 13,600
2021-11-12 2021-09-30 13F AMERICAN ELEC PWR UNIT 08/01/2021 025537127 431 -110,807 -99.61 20 -99.79 0.0001
2021-11-12 2021-09-30 13F AMERICAN ELEC PWR COM 025537101 145,728 34,490 11,829 0.0622
2021-08-10 2021-06-30 13F AMERICAN ELEC PWR COM 025537101 111,238 110,111 9,770.28 9,409 17,324.07 0.0530
2021-05-11 2021-03-31 13F AMERICAN ELEC PWR UNIT 08/01/2021 025537127 1,127 -77,852 -98.57 54 -99.18 0.0004
2021-05-11 2021-03-31 13F AMERICAN ELEC PWR COM 025537101 77,506 -1,473 6,564 0.0444
2021-02-12 2020-12-31 13F AMERICAN ELEC PWR COM 025537101 78,979 28,700 57.08 6,576 60.08 0.0498
2020-11-13 2020-09-30 13F AMERICAN ELEC PWR COM 025537101 50,279 6,806 15.66 4,108 18.66 0.0385
2020-08-12 2020-06-30 13F AMERICAN ELEC PWR COM 025537101 43,473 710 1.66 3,462 1.23 0.0362
2020-05-12 2020-03-31 13F AMERICAN ELEC PWR COM 025537101 42,763 9,421 28.26 3,420 8.57 0.0449
2020-02-07 2019-12-31 13F AMERICAN ELEC PWR COM 025537101 33,342 6,582 24.60 3,150 25.65 0.0393
2019-11-12 2019-09-30 13F AMERICAN ELEC PWR COM 025537101 26,760 3,516 15.13 2,507 22.53 0.0340
2019-08-09 2019-06-30 13F AMERICAN ELEC PWR COM 025537101 23,244 -13,642 -36.98 2,046 -33.76 0.0285
2019-05-10 2019-03-31 13F AMERICAN ELEC PWR COM 025537101 36,886 29,259 383.62 3,089 441.93 0.0440
2019-02-12 2018-12-31 13F AMERICAN COM 025537101 7,627 22 0.29 570 5.75 0.0100
2018-11-02 2018-09-30 13F American Electric Power Common 025537101 7,605 100 1.33 539 3.65 0.0082
2018-07-31 2018-06-30 13F American Electric Power Common 025537101 7,505 105 1.42 520 2.36 0.0085
2018-05-09 2018-03-31 13F American Electric Power Common 025537101 7,400 7,400 508 0.0084
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.