American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership1,009,232 shares
Latest Disclosed Value $ 116,374,993
Sei Investments Co reports 79.57% increase in ownership of AEP / American Electric Power Company, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 1,009,232 shares of American Electric Power Company, Inc. (MX:AEP) valued at $116,374,993 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 562,015 shares of American Electric Power Company, Inc.. This represents a change in shares of 79.57% 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)
2026-02-13 2025-12-31 13F AMERICAN ELEC PWR COM 025537101 1,009,232 447,217 79.57 116,375 84.05 0.1149
2025-11-13 2025-09-30 13F AMERICAN ELEC PWR COM 025537101 562,015 77,067 15.89 63,231 25.66 0.0680
2025-08-14 2025-06-30 13F AMERICAN ELEC PWR COM 025537101 484,948 13,155 2.79 50,321 -2.39 0.0583
2025-05-14 2025-03-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 471,793 -88,174 -15.75 51,554 -0.18 0.0664
2025-05-13 2025-03-31 13F AMERICAN ELEC PWR COM 025537101 553,810 -6,157 52,019 0.0566
2025-02-11 2024-12-31 13F AMERICAN ELEC PWR COM 025537101 559,967 156,563 38.81 51,646 24.78 0.0663
2024-11-12 2024-09-30 13F AMERICAN ELEC PWR COM 025537101 403,404 36,477 9.94 41,390 28.56 0.0537
2024-08-13 2024-06-30 13F AMERICAN ELEC PWR COM 025537101 366,927 35,491 10.71 32,195 12.82 0.0456
2024-05-07 2024-03-31 13F AMERICAN ELEC PWR COM 025537101 331,436 33,144 11.11 28,536 17.78 0.0418
2024-02-14 2023-12-31 13F AMERICAN ELEC PWR COM 025537101 298,292 -21,886 -6.84 24,227 0.59 0.0389
2023-11-14 2023-09-30 13F AMERICAN ELEC PWR COM 025537101 320,178 -708 -0.22 24,085 -10.86 0.0433
2023-08-11 2023-06-30 13F AMERICAN ELEC PWR COM 025537101 320,886 49,621 18.29 27,019 9.47 0.0471
2023-05-12 2023-03-31 13F AMERICAN ELEC PWR COM 025537101 271,265 188,269 226.84 24,682 213.30 0.0458
2023-02-10 2022-12-31 13F AMERICAN ELEC PWR COM 025537101 82,996 -236,631 -74.03 7,878 -71.49 0.0175
2022-11-14 2022-09-30 13F AMERICAN ELEC PWR COM 025537101 319,627 25,243 8.57 27,632 -2.16 0.0616
2022-08-15 2022-06-30 13F AMERICAN ELEC PWR COM 025537101 294,384 88,944 43.29 28,241 37.30 0.0610
2022-05-13 2022-03-31 13F AMERICAN ELEC PWR COM 025537101 205,440 30,836 17.66 20,569 32.33 0.0413
2022-02-14 2021-12-31 13F AMERICAN ELEC PWR COM 025537101 174,604 19,562 12.62 15,544 23.80 0.0292
2021-11-12 2021-09-30 13F AMERICAN ELEC PWR COM 025537101 155,042 -29,330 -15.91 12,556 -19.68 0.0263
2021-08-06 2021-06-30 13F AMERICAN ELEC PWR COM 025537101 184,372 150,090 437.81 15,633 429.93 0.0347
2021-05-12 2021-03-31 13F AMERICAN ELEC PWR COM 025537101 34,282 -1,659 -4.62 2,950 -3.28 0.0074
2021-02-08 2020-12-31 13F AMERICAN ELEC PWR COM 025537101 35,941 -16,764 -31.81 3,050 -29.22 0.0079
2020-12-04 2020-09-30 13F/A-1 AMERICAN ELEC PWR COM 025537101 52,705 -111,944 -67.99 4,309 -67.17 0.0125
2020-11-06 2020-09-30 13F AMERICAN ELEC PWR COM 025537101 60,686 -103,963 4,961 11,944.9850
2020-08-17 2020-06-30 13F/A-1 AMERICAN ELEC PWR COM 025537101 164,649 37,268 29.26 13,125 28.65 0.0407
2020-08-11 2020-06-30 13F AMERICAN ELEC PWR COM 025537101 186,639 59,258 16,184 43,899.9615
2020-05-14 2020-03-31 13F AMERICAN ELEC PWR COM 025537101 127,381 25,878 25.49 10,202 6.23 0.0375
2020-02-06 2019-12-31 13F AMERICAN ELEC PWR COM 025537101 101,503 -7,672 -7.03 9,604 -6.13 0.0286
2019-11-12 2019-09-30 13F AMERICAN ELEC PWR COM 025537101 109,175 29,202 36.51 10,231 45.08 0.0262
2019-08-14 2019-06-30 13F AMERICAN ELEC PWR COM 025537101 79,973 -26,331 -24.77 7,052 -20.56 0.0230
2019-05-15 2019-03-31 13F AMERICAN ELEC PWR COM 025537101 106,304 -28,378 -21.07 8,877 -7.00 0.0298
2019-02-13 2018-12-31 13F AMERICAN ELEC PWR COM 025537101 134,682 6,454 5.03 9,545 5.04 0.0340
2018-11-08 2018-09-30 13F AMERICAN ELEC PWR COM 025537101 128,228 -16,694 -11.52 9,087 -9.46 0.0329
2018-08-03 2018-06-30 13F AMERICAN ELEC PWR COM 025537101 144,922 44,008 43.61 10,036 44.99 0.0341
2018-05-11 2018-03-31 13F AMERICAN ELEC PWR COM 025537101 100,914 19,919 24.59 6,922 7.10 0.0265
2018-02-08 2017-12-31 13F AMERICAN ELEC PWR COM 025537101 80,995 -15,925 -16.43 6,463 -4.77 0.0224
2017-11-06 2017-09-30 13F AMERICAN ELEC PWR COM 025537101 96,920 -10,156 -9.48 6,787 -8.76 0.0241
2017-07-31 2017-06-30 13F AMERICAN ELEC PWR COM 025537101 107,076 15,564 17.01 7,439 21.10 0.0297
2017-05-05 2017-03-31 13F AMERICAN ELEC PWR COM 025537101 91,512 31,779 53.20 6,143 64.25 0.0269
2017-02-02 2016-12-31 13F AMERICAN ELEC PWR COM 025537101 59,733 -50,293 -45.71 3,740 -47.06 0.0181
2016-11-04 2016-09-30 13F AMERICAN ELEC PWR COM 025537101 110,026 7,090 6.89 7,065 -2.07 0.0359
2016-08-11 2016-06-30 13F AMERICAN ELEC PWR COM 025537101 102,936 17,280 20.17 7,214 26.85 0.0433
2016-05-10 2016-03-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 85,656 -62,252 -42.09 5,687 -34.02 0.0354
2016-02-03 2015-12-31 13F AMERICAN ELEC PWR COM 025537101 147,908 -681 -0.46 8,619 2.01 0.0525
2015-11-02 2015-09-30 13F/A-1 AMERICAN ELEC PWR COM 025537101 148,589 14,090 10.48 8,449 18.60 0.0776
2015-10-30 2015-09-30 13F AMERICAN ELEC PWR COM 025537101 148,589 8,451
2015-08-07 2015-06-30 13F/A-1 AMERICAN ELEC PWR COM 025537101 134,499 2,030 1.53 7,124 -4.39 0.0644
2015-08-04 2015-06-30 13F AMERICAN ELEC PWR COM 025537101 134,499 2,030 7,124 0.0644
2015-05-14 2015-03-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 132,469 -1,996 -1.48 7,451 -8.73 0.0647
2015-05-01 2015-03-31 13F AMERICAN ELEC PWR COM 025537101 132,469 7,451
2015-02-10 2014-12-31 13F AMERICAN ELEC PWR COM 025537101 134,465 134,465 8,164 0.0722
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.