American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionMagellan Asset Management Ltd
ManagerHamish Douglass
Latest Disclosed Ownership403,001 shares
Latest Disclosed Value $ 52,825,371
Magellan Asset Management Ltd reports 18.55% increase in ownership of AEP / American Electric Power Company, Inc.

On May 11, 2026 - Magellan Asset Management Ltd filed a 13F-HR form disclosing ownership of 403,001 shares of American Electric Power Company, Inc. (MX:AEP) valued at $52,825,371 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 339,933 shares of American Electric Power Company, Inc.. This represents a change in shares of 18.55% 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)
2026-05-11 2026-03-31 13F AMERICAN ELEC PWR COM 025537101 403,001 63,068 18.55 52,825 34.77 0.6854
2026-02-10 2025-12-31 13F AMERICAN ELEC PWR COM 025537101 339,933 -1,765 -0.52 39,198 1.97 0.4765
2025-11-10 2025-09-30 13F AMERICAN ELEC PWR COM 025537101 341,698 22,480 7.04 38,441 16.06 0.4553
2025-08-07 2025-06-30 13F AMERICAN ELEC PWR COM 025537101 319,218 28,204 9.69 33,122 4.16 0.3786
2025-05-12 2025-03-31 13F AMERICAN ELEC PWR COM 025537101 291,014 -13,499 -4.43 31,799 13.22 0.3866
2025-02-12 2024-12-31 13F AMERICAN ELEC PWR COM 025537101 304,513 -38,776 -11.30 28,085 -20.26 0.3085
2024-11-14 2024-09-30 13F AMERICAN ELEC PWR COM 025537101 343,289 -37,002 -9.73 35,221 5.56 0.3507
2024-08-13 2024-06-30 13F AMERICAN ELEC PWR COM 025537101 380,291 8,656 2.33 33,367 4.28 0.3177
2024-05-14 2024-03-31 13F AMERICAN ELEC PWR COM 025537101 371,635 -15,227 -3.94 31,998 1.84 0.3056
2024-02-13 2023-12-31 13F AMERICAN ELEC PWR COM 025537101 386,862 6,390 1.68 31,421 9.79 0.3130
2023-11-13 2023-09-30 13F AMERICAN ELEC PWR COM 025537101 380,472 25,668 7.23 28,619 -4.20 0.3041
2023-08-11 2023-06-30 13F AMERICAN ELEC PWR COM 025537101 354,804 31,989 9.91 29,874 1.71 0.2659
2023-05-12 2023-03-31 13F AMERICAN ELEC PWR COM 025537101 322,815 16,732 5.47 29,373 1.07 0.2508
2023-02-13 2022-12-31 13F AMERICAN ELEC PWR COM 025537101 306,083 21,266 7.47 29,063 18.03 0.2486
2022-11-10 2022-09-30 13F AMERICAN ELEC PWR COM 025537101 284,817 -9,850 -3.34 24,622 -12.90 0.1721
2022-08-12 2022-06-30 13F AMERICAN ELEC PWR COM 025537101 294,667 -44,764 -13.19 28,270 -16.52 0.1543
2022-05-13 2022-03-31 13F AMERICAN ELEC PWR COM 025537101 339,431 -83,264 -19.70 33,865 -9.95 0.1311
2022-02-11 2021-12-31 13F AMERICAN ELEC PWR COM 025537101 422,695 37,478 9.73 37,607 20.26 0.0958
2021-11-04 2021-09-30 13F AMERICAN ELEC PWR COM 025537101 385,217 49,105 14.61 31,272 9.99 0.0625
2021-08-12 2021-06-30 13F AMERICAN ELEC PWR COM 025537101 336,112 -12,822 -3.67 28,432 -3.80 0.0563
2021-05-13 2021-03-31 13F AMERICAN ELEC PWR COM 025537101 348,934 -32,086 -8.42 29,555 -6.85 0.0618
2021-02-11 2020-12-31 13F AMERICAN ELEC PWR COM 025537101 381,020 19,310 5.34 31,728 7.32 0.0734
2020-11-12 2020-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 361,710 38,729 11.99 29,563 14.93 0.0754
2020-08-14 2020-06-30 13F AMERICAN ELEC PWR COM 025537101 322,981 72,110 28.74 25,722 28.19 0.0770
2020-05-14 2020-03-31 13F AMERICAN ELEC PWR COM 025537101 250,871 -35,046 -12.26 20,065 -25.75 0.0691
2020-02-13 2019-12-31 13F AMERICAN ELEC PWR COM 025537101 285,917 15,911 5.89 27,022 6.82 0.0712
2019-11-13 2019-09-30 13F AMERICAN ELEC PWR COM 025537101 270,006 -767 -0.28 25,297 6.15 0.0727
2019-08-13 2019-06-30 13F AMERICAN ELEC PWR COM 025537101 270,773 8,860 3.38 23,831 8.64 0.0686
2019-05-14 2019-03-31 13F AMERICAN ELEC PWR COM 025537101 261,913 35,457 15.66 21,935 29.60 0.0696
2019-03-11 2018-12-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 226,456 -44,272 -16.35 16,925 -11.80 0.0622
2019-02-14 2018-12-31 13F AMERICAN ELEC PWR COM 025537101 226,456 -44,272 16,925
2018-11-14 2018-09-30 13F AMERICAN ELEC PWR COM 025537101 270,728 -17,015 -5.91 19,189 -3.70 0.0627
2018-08-13 2018-06-30 13F AMERICAN ELEC PWR COM 025537101 287,743 -29,673 -9.35 19,926 -8.48 0.0699
2018-05-15 2018-03-31 13F AMERICAN ELEC PWR COM 025537101 317,416 57,338 22.05 21,772 13.79 0.0803
2018-02-14 2017-12-31 13F AMERICAN ELEC PWR COM 025537101 260,078 -16,973 -6.13 19,134 -1.68 0.0636
2017-11-13 2017-09-30 13F AMERICAN ELEC PWR COM 025537101 277,051 7,376 2.74 19,460 3.88 0.0733
2017-08-11 2017-06-30 13F AMERICAN ELEC PWR COM 025537101 269,675 29,319 12.20 18,734 17.09 0.0786
2017-05-16 2017-03-31 13F AMERICAN ELEC PWR COM 025537101 240,356 -38,747 -13.88 16,000 -8.95 0.0706
2017-02-15 2016-12-31 13F AMERICAN ELEC PWR COM 025537101 279,103 -9,044 -3.14 17,572 -5.03 0.0824
2016-11-14 2016-09-30 13F AMERICAN ELEC PWR COM 025537101 288,147 12,537 4.55 18,502 -4.22 0.0928
2016-08-19 2016-06-30 13F AMERICAN ELECTRIC POWER COM 025537101 275,610 -18,409 -6.26 19,318 -1.05 0.1084
2016-05-13 2016-03-31 13F AMERICAN ELECTRIC POWER COM 025537101 294,019 -27,938 -8.68 19,523 4.07 0.1052
2016-02-11 2015-12-31 13F AMERICAN ELECTRIC POWER COM 025537101 321,957 -2,339 -0.72 18,760 1.74 0.1051
2015-11-10 2015-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 324,296 -9,429 -2.83 18,439 4.31 0.1158
2015-08-13 2015-06-30 13F AMERICAN ELECTRIC POWER COM 025537101 333,725 51,768 18.36 17,677 11.46 0.1110
2015-05-12 2015-03-31 13F AMERICAN ELECTRIC POWER COM 025537101 281,957 -26,026 -8.45 15,860 -15.19 0.1021
2015-02-12 2014-12-31 13F AMERICAN ELECTRIC POWER COM 025537101 307,983 -81,681 -20.96 18,701 -8.08 0.1332
2014-11-13 2014-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 389,664 11,118 2.94 20,344 -3.64 0.1601
2014-08-12 2014-06-30 13F AMERICAN ELECTRIC POWER COM 025537101 378,546 -93,367 -19.78 21,112 -11.69 0.1591
2014-05-14 2014-03-31 13F AMERICAN ELECTRIC POWER COM 025537101 471,913 -12,131 -2.51 23,907 5.67 0.1880
2014-02-11 2013-12-31 13F AMERICAN ELECTRIC POWER COM 025537101 484,044 19,957 4.30 22,624 12.46 0.1867
2013-11-13 2013-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 464,087 6,375 1.39 20,118 -1.84 0.2165
2013-08-21 2013-06-30 13F AMERICAN ELECTRICAL POWER COM 025537101 457,712 457,712 20,496 0.2286
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.