American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionClearbridge Investments, LLC
Latest Disclosed Ownership20,417 shares
Latest Disclosed Value $ 2,676,260
Clearbridge Investments, LLC reports 0.87% decrease in ownership of AEP / American Electric Power Company, Inc.

On May 13, 2026 - Clearbridge Investments, LLC filed a 13F-HR form disclosing ownership of 20,417 shares of American Electric Power Company, Inc. (MX:AEP) valued at $2,676,260 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 20,597 shares of American Electric Power Company, Inc.. This represents a change in shares of -0.87% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F American Electric Power COM 025537101 20,417 -180 -0.87 2,676 12.67 0.0021
2026-02-11 2025-12-31 13F American Electric Power COM 025537101 20,597 -5 -0.02 2,375 2.50 0.0019
2025-11-13 2025-09-30 13F American Electric Power COM 025537101 20,602 65 0.32 2,318 8.78 0.0017
2025-08-12 2025-06-30 13F American Electric Power COM 025537101 20,537 -15 -0.07 2,131 -5.12 0.0017
2025-05-13 2025-03-31 13F American Electric Power COM 025537101 20,552 -600 -2.84 2,246 15.13 0.0020
2025-02-12 2024-12-31 13F American Electric Power COM 025537101 21,152 -300 -1.40 1,951 -11.36 0.0016
2024-11-12 2024-09-30 13F American Electric Power COM 025537101 21,452 -737 -3.32 2,201 13.05 0.0017
2024-08-27 2024-06-30 13F/A-1 American Electric Power COM 025537101 22,189 -6,393 -22.37 1,947 -20.89 0.0016
2024-08-14 2024-06-30 13F American Electric Power COM 025537101 22,189 -6,393 1,947 0.0016
2024-05-13 2024-03-31 13F American Electric Power COM 025537101 28,582 -653 -2.23 2,461 3.62 0.0020
2024-02-09 2023-12-31 13F American Electric Power COM 025537101 29,235 5,549 23.43 2,374 33.30 0.0020
2023-11-13 2023-09-30 13F American Electric Power COM 025537101 23,686 -455,104 -95.05 1,782 -95.58 0.0017
2023-08-11 2023-06-30 13F American Electric Power COM 025537101 478,790 -2,050 -0.43 40,314 -7.86 0.0364
2023-05-12 2023-03-31 13F American Electric Power COM 025537101 480,840 -298,376 -38.29 43,752 -40.87 0.0418
2023-02-10 2022-12-31 13F American Electric Power COM 025537101 779,216 -1,839 -0.24 73,987 9.57 0.0731
2022-11-14 2022-09-30 13F American Electric Power COM 025537101 781,055 75 0.01 67,522 -9.88 0.0681
2022-08-11 2022-06-30 13F American Electric Power COM 025537101 780,980 303,160 63.45 74,927 57.17 0.0698
2022-05-13 2022-03-31 13F American Electric Power COM 025537101 477,820 448,887 1,551.47 47,672 1,752.06 0.0358
2022-02-11 2021-12-31 13F American Electric Power COM 025537101 28,933 1,800 6.63 2,574 16.84 0.0018
2021-11-12 2021-09-30 13F American Electric Power COM 025537101 27,133 22 0.08 2,203 -3.92 0.0016
2021-08-13 2021-06-30 13F American Electric Power COM 025537101 27,111 -375 -1.36 2,293 -1.50 0.0016
2021-05-13 2021-03-31 13F American Electric Power COM 025537101 27,486 1,965 7.70 2,328 9.55 0.0017
2021-02-10 2020-12-31 13F American Electric Power COM 025537101 25,521 -2,285 -8.22 2,125 -6.51 0.0016
2020-11-12 2020-09-30 13F American Electric Power COM 025537101 27,806 -734 -2.57 2,273 0.00 0.0020
2020-08-14 2020-06-30 13F AMERICAN ELEC PWR COM 025537101 28,540 -71 -0.25 2,273 -0.66 0.0021
2020-05-22 2020-03-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 28,611 -525 -1.80 2,288 -15.98 0.0025
2020-05-15 2020-03-31 13F AMERICAN ELEC PWR COM 025537101 28,611 -525 2,288 2,480.2562
2020-02-14 2019-12-31 13F AMERICAN ELEC PWR COM 025537101 29,136 480 1.68 2,723 1.42 0.0023
2019-11-14 2019-09-30 13F AMERICAN ELEC PWR COM 025537101 28,656 -1,079 -3.63 2,685 2.60 0.0023
2019-08-14 2019-06-30 13F AMERICAN ELEC PWR COM 025537101 29,735 -126 -0.42 2,617 4.64 0.0023
2019-05-15 2019-03-31 13F AMERICAN ELEC PWR COM 025537101 29,861 -1,759 -5.56 2,501 5.84 0.0022
2019-02-14 2018-12-31 13F AMERICAN ELEC PWR COM 025537101 31,620 813 2.64 2,363 8.20 0.0024
2018-11-28 2018-09-30 13F/A-1 AMERICAN ELEC PWR COM 025537101 30,807 -3,382 -9.89 2,184 -7.77 0.0019
2018-11-14 2018-09-30 13F AMERICAN ELEC PWR COM 025537101 30,807 -3,382 2,184
2018-08-14 2018-06-30 13F AMERICAN ELEC PWR COM 025537101 34,189 -2,847 -7.69 2,368 -6.77 0.0019
2018-05-15 2018-03-31 13F AMERICAN ELEC PWR COM 025537101 37,036 -861 -2.27 2,540 -8.90 0.0024
2018-02-14 2017-12-31 13F AMERICAN ELEC PWR COM 025537101 37,897 -725 -1.88 2,788 2.76 0.0026
2017-11-14 2017-09-30 13F AMERICAN ELEC PWR COM 025537101 38,622 -607 -1.55 2,713 -0.44 0.0026
2017-08-14 2017-06-30 13F AMERICAN ELEC PWR COM 025537101 39,229 -446 -1.12 2,725 2.33 0.0027
2017-06-07 2017-03-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 39,675 -92 -0.23 2,663 6.35 0.0027
2017-05-15 2017-03-31 13F AMERICAN ELEC PWR COM 025537101 39,675 2,663
2017-02-14 2016-12-31 13F AMERICAN ELEC PWR COM 025537101 39,767 1,887 4.98 2,504 2.96 0.0028
2016-11-14 2016-09-30 13F AMERICAN ELEC PWR COM 025537101 37,880 -5,779 -13.24 2,432 -20.52 0.0027
2016-08-15 2016-06-30 13F AMERICAN ELEC PWR COM 025537101 43,659 -2,136 -4.66 3,060 0.62 0.0036
2016-05-16 2016-03-31 13F AMERICAN ELEC PWR COM 025537101 45,795 -670 -1.44 3,041 12.30 0.0036
2016-02-16 2015-12-31 13F AMERICAN ELEC PWR COM 025537101 46,465 -3,710 -7.39 2,708 -5.08 0.0031
2015-11-16 2015-09-30 13F AMERICAN ELEC PWR COM 025537101 50,175 -1,063 -2.07 2,853 5.12 0.0034
2015-08-17 2015-06-30 13F/A-1 AMERICAN ELEC PWR COM 025537101 51,238 1,346 2.70 2,714 -3.28 0.0029
2015-08-14 2015-06-30 13F AMERICAN ELEC PWR COM 025537101 51,238 2,714
2015-05-15 2015-03-31 13F AMERICAN ELEC PWR COM 025537101 49,892 -1,843 -3.56 2,806 -10.67 0.0029
2015-02-17 2014-12-31 13F AMERICAN ELEC PWR COM 025537101 51,735 -12,491 -19.45 3,141 -6.32 0.0033
2014-11-14 2014-09-30 13F AMERICAN ELEC PWR COM 025537101 64,226 -4,346 -6.34 3,353 -12.32 0.0037
2014-08-14 2014-06-30 13F AMERICAN ELEC PWR COM 025537101 68,572 -1,974,332 -96.64 3,824 -96.31 0.0043
2014-05-15 2014-03-31 13F AMERICAN ELEC PWR COM 025537101 2,042,904 -873,606 -29.95 103,494 -24.08 0.1228
2014-02-14 2013-12-31 13F AMERICAN ELEC PWR COM 025537101 2,916,510 68,480 2.40 136,318 10.41 0.1699
2013-11-14 2013-09-30 13F AMERICAN ELEC PWR COM 025537101 2,848,030 95,001 3.45 123,462 0.15 0.1724
2013-08-14 2013-06-30 13F AMERICAN ELEC PWR COM 025537101 2,753,029 2,753,029 123,281 0.1882
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.