American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionAcadian Asset Management Llc
Latest Disclosed Ownership392,679 shares
Latest Disclosed Value $ 51,461
Acadian Asset Management Llc reports 31.46% decrease in ownership of AEP / American Electric Power Company, Inc.

On May 13, 2026 - Acadian Asset Management Llc filed a 13F-HR form disclosing ownership of 392,679 shares of American Electric Power Company, Inc. (MX:AEP) valued at $51,461 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 572,917 shares of American Electric Power Company, Inc.. This represents a change in shares of -31.46% 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)
2026-05-13 2026-03-31 13F AMERICAN ELEC PWR COM 025537101 392,679 -180,238 -31.46 51 -22.73 0.0730
2026-02-10 2025-12-31 13F AMERICAN ELEC PWR COM 025537101 572,917 355,930 164.03 66 175.00 0.1084
2025-11-13 2025-09-30 13F AMERICAN ELEC PWR COM 025537101 216,987 216,987 24 0.0426
2025-08-07 2025-06-30 13F AMERICAN ELEC PWR COM 025537101 0 -2,941 -100.00 0 0.0000
2025-05-21 2025-03-31 13F AMERICAN ELEC PWR COM 025537101 2,941 2,941 0 0.0009
2024-11-12 2024-09-30 13F AMERICAN ELEC PWR COM 025537101 0 -18,857 -100.00 0 -100.00
2024-08-06 2024-06-30 13F AMERICAN ELEC PWR COM 025537101 18,857 18,857 2 0.0051
2024-05-10 2024-03-31 13F AMERICAN ELEC PWR COM 025537101 0 -2,361 -100.00 0 0.0000
2024-02-13 2023-12-31 13F AMERICAN ELEC PWR COM 025537101 2,361 2,361 0 0.0007
2023-08-07 2023-06-30 13F AMERICAN ELEC PWR COM 025537101 0 -6 -100.00 0 0.0000
2023-05-11 2023-03-31 13F AMERICAN ELEC PWR COM 025537101 6 -11,721 -99.95 0 -100.00
2023-02-14 2022-12-31 13F AMERICAN ELEC PWR COM 025537101 11,727 -176,795 -93.78 1 -99.99 0.0055
2022-11-14 2022-09-30 13F AMERICAN ELEC PWR COM 025537101 188,522 -12,824 -6.37 16,287 -15.68 0.0891
2022-08-09 2022-06-30 13F AMERICAN ELEC PWR COM 025537101 201,346 199,439 10,458.26 19,315 10,065.79 0.0988
2022-05-12 2022-03-31 13F AMERICAN ELEC PWR COM 025537101 1,907 -17,570 -90.21 190 -89.03 0.0008
2022-02-10 2021-12-31 13F AMERICAN ELEC PWR COM 025537101 19,477 -49,522 -71.77 1,732 -69.06 0.0065
2021-11-12 2021-09-30 13F AMERICAN ELEC PWR COM 025537101 68,999 65,762 2,031.57 5,598 1,943.07 0.0213
2021-08-11 2021-06-30 13F AMERICAN ELEC PWR COM 025537101 3,237 -22,614 -87.48 274 -87.48 0.0010
2021-05-11 2021-03-31 13F AMERICAN ELEC PWR COM 025537101 25,851 -12,212 -32.08 2,189 -30.95 0.0085
2021-02-11 2020-12-31 13F AMERICAN ELEC PWR COM 025537101 38,063 10,285 37.03 3,170 39.59 0.0123
2020-11-09 2020-09-30 13F AMERICAN ELEC PWR COM 025537101 27,778 -16,756 -37.63 2,271 -35.97 0.0095
2020-08-12 2020-06-30 13F AMERICAN ELEC PWR COM 025537101 44,534 44,534 3,547 0.0153
2020-02-06 2019-12-31 13F AMERICAN ELEC PWR COM 025537101 0 -138,714 -100.00 0 -100.00
2019-11-07 2019-09-30 13F AMERICAN ELEC PWR COM 025537101 138,714 138,714 12,995 0.0555
2019-08-08 2019-06-30 13F AMERICAN ELEC PWR COM 025537101 0 -98,836 -100.00 0 -100.00
2019-05-09 2019-03-31 13F AMERICAN ELEC PWR COM 025537101 98,836 -15,716 -13.72 8,277 -3.34 0.0356
2019-02-07 2018-12-31 13F AMERICAN ELEC PWR COM 025537101 114,552 89,681 360.58 8,563 385.71 0.0424
2018-10-30 2018-09-30 13F AMERICAN ELEC PWR COM 025537101 24,871 24,871 1,763 0.0073
2018-04-12 2018-03-31 13F AMERICAN ELEC PWR COM 025537101 0 -434 -100.00 0 -100.00
2018-01-18 2017-12-31 13F AMERICAN ELEC PWR COM 025537101 434 0 0.00 32 6.67 0.0001
2017-10-13 2017-09-30 13F AMERICAN ELEC PWR COM 025537101 434 0 0.00 30 0.00 0.0001
2017-07-25 2017-06-30 13F AMERICAN ELEC PWR COM 025537101 434 0 0.00 30 3.45 0.0001
2017-04-25 2017-03-31 13F AMERICAN ELEC PWR COM 025537101 434 -79,610 -99.46 29 -99.42 0.0001
2017-01-19 2016-12-31 13F AMERICAN ELEC PWR COM 025537101 80,044 -24,198 -23.21 5,040 -24.71 0.0245
2016-10-20 2016-09-30 13F AMERICAN ELEC PWR COM 025537101 104,242 -285,799 -73.27 6,694 -75.51 0.0331
2016-07-19 2016-06-30 13F AMERICAN ELEC PWR COM 025537101 390,041 4,182 1.08 27,337 6.71 0.1397
2016-04-14 2016-03-31 13F AMERICAN ELEC PWR COM 025537101 385,859 -214,778 -35.76 25,617 -26.80 0.1293
2016-01-14 2015-12-31 13F AMERICAN ELEC PWR COM 025537101 600,637 310,668 107.14 34,995 112.23 0.1829
2015-10-15 2015-09-30 13F AMERICAN ELEC PWR COM 025537101 289,969 232,979 408.81 16,489 445.99 0.0899
2015-08-11 2015-06-30 13F AMERICAN ELEC PWR COM 025537101 56,990 52,824 1,267.98 3,020 1,190.60 0.0147
2015-04-20 2015-03-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 4,166 -17,299 -80.59 234 -82.06 0.0011
2015-04-16 2015-03-31 13F AMERICAN ELEC PWR COM 025537101 4,166 234
2015-01-23 2014-12-31 13F AMERICAN ELEC PWR COM 025537101 21,465 -51,800 -70.70 1,304 -65.91 0.0058
2014-10-22 2014-09-30 13F AMERICAN ELEC PWR COM 025537101 73,265 -200,091 -73.20 3,825 -74.91 0.0185
2014-07-21 2014-06-30 13F AMERICAN ELEC PWR COM 025537101 273,356 24,671 9.92 15,244 20.98 0.0741
2014-04-22 2014-03-31 13F AMERICAN ELEC PWR COM 025537101 248,685 185,494 293.54 12,600 326.54 0.0660
2014-01-22 2013-12-31 13F AMERICAN ELEC PWR COM 025537101 63,191 -988,698 -93.99 2,954 -93.52 0.0165
2013-10-18 2013-09-30 13F AMERICAN ELEC PWR COM 025537101 1,051,889 1,051,889 45,598 0.2960
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.