American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionBlair William & Co/il
Latest Disclosed Ownership53,446 shares
Latest Disclosed Value $ 7,005,698
Blair William & Co/il reports 12.96% increase in ownership of AEP / American Electric Power Company, Inc.

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 53,446 shares of American Electric Power Company, Inc. (MX:AEP) valued at $7,005,698 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 47,312 shares of American Electric Power Company, Inc.. This represents a change in shares of 12.96% 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)
2026-05-08 2026-03-31 13F AMERICAN ELEC PWR COM 025537101 53,446 6,134 12.96 7,006 28.41 0.0201
2026-02-17 2025-12-31 13F AMERICAN ELEC PWR COM 025537101 47,312 -267 -0.56 5,456 1.92 0.0146
2025-11-12 2025-09-30 13F AMERICAN ELEC PWR COM 025537101 47,579 -49 -0.10 5,353 8.32 0.0142
2025-07-24 2025-06-30 13F AMERICAN ELEC PWR COM 025537101 47,628 8,641 22.16 4,942 15.99 0.0137
2025-05-09 2025-03-31 13F AMERICAN ELEC PWR COM 025537101 38,987 -610 -1.54 4,260 16.65 0.0128
2025-02-12 2024-12-31 13F AMERICAN ELEC PWR COM 025537101 39,597 663 1.70 3,652 -8.56 0.0106
2024-11-12 2024-09-30 13F AMERICAN ELEC PWR COM 025537101 38,934 262 0.68 3,995 17.71 0.0117
2024-08-12 2024-06-30 13F AMERICAN ELEC PWR COM 025537101 38,672 -1,132 -2.84 3,393 -0.99 0.0105
2024-05-09 2024-03-31 13F AMERICAN ELEC PWR COM 025537101 39,804 522 1.33 3,427 7.43 0.0108
2024-02-12 2023-12-31 13F AMERICAN ELEC PWR COM 025537101 39,282 -597 -1.50 3,190 6.37 0.0109
2023-11-09 2023-09-30 13F AMERICAN ELEC PWR COM 025537101 39,879 -1,441 -3.49 3,000 -13.80 0.0115
2023-08-11 2023-06-30 13F AMERICAN ELEC PWR COM 025537101 41,320 77 0.19 3,479 -7.28 0.0127
2023-05-12 2023-03-31 13F AMERICAN ELEC PWR COM 025537101 41,243 -422 -1.01 3,753 -5.16 0.0150
2023-02-10 2022-12-31 13F AMERICAN ELEC PWR COM 025537101 41,665 1,176 2.90 3,956 13.03 0.0172
2022-11-09 2022-09-30 13F AMERICAN ELEC PWR COM 025537101 40,489 -2,051 -4.82 3,500 -14.24 0.0161
2022-08-10 2022-06-30 13F AMERICAN ELEC PWR COM 025537101 42,540 1,143 2.76 4,081 -1.19 0.0181
2022-05-13 2022-03-31 13F AMERICAN ELEC PWR COM 025537101 41,397 -2,791 -6.32 4,130 5.06 0.0145
2022-02-14 2021-12-31 13F AMERICAN ELEC PWR COM 025537101 44,188 4,337 10.88 3,931 21.51 0.0123
2021-11-12 2021-09-30 13F AMERICAN ELEC PWR COM 025537101 39,851 -585 -1.45 3,235 -5.41 0.0110
2021-08-12 2021-06-30 13F AMERICAN ELEC PWR COM 025537101 40,436 179 0.44 3,420 0.29 0.0119
2021-05-13 2021-03-31 13F AMERICAN ELEC PWR COM 025537101 40,257 -1,476 -3.54 3,410 -1.87 0.0129
2021-02-09 2020-12-31 13F AMERICAN ELEC PWR COM 025537101 41,733 -540 -1.28 3,475 0.58 0.0127
2020-11-06 2020-09-30 13F AMERICAN ELEC PWR COM 025537101 42,273 23,001 119.35 3,455 125.08 0.0147
2020-08-12 2020-06-30 13F AMERICAN ELEC PWR COM 025537101 19,272 -797 -3.97 1,535 -4.36 0.0073
2020-05-11 2020-03-31 13F AMERICAN ELEC PWR COM 025537101 20,069 1,110 5.85 1,605 -10.44 0.0100
2020-02-13 2019-12-31 13F AMERICAN ELEC PWR COM 025537101 18,959 3,489 22.55 1,792 23.67 0.0092
2019-11-12 2019-09-30 13F AMERICAN ELEC PWR COM 025537101 15,470 -785 -4.83 1,449 1.26 0.0083
2019-08-13 2019-06-30 13F AMERICAN ELEC PWR COM 025537101 16,255 1,977 13.85 1,431 19.65 0.0082
2019-05-14 2019-03-31 13F AMERICAN ELEC PWR COM 025537101 14,278 -122 -0.85 1,196 11.15 0.0073
2019-02-14 2018-12-31 13F AMERICAN ELEC PWR COM 025537101 14,400 -27,823 -65.90 1,076 -64.05 0.0079
2018-11-13 2018-09-30 13F AMERICAN ELEC PWR COM 025537101 42,223 7,216 20.61 2,993 23.47 0.0183
2018-08-13 2018-06-30 13F AMERICAN ELEC PWR COM 025537101 35,007 -193 -0.55 2,424 0.41 0.0165
2018-05-15 2018-03-31 13F AMERICAN ELEC PWR COM 025537101 35,200 -9,422 -21.12 2,414 -26.47 0.0171
2018-02-14 2017-12-31 13F AMERICAN ELEC PWR COM 025537101 44,622 -861 -1.89 3,283 2.75 0.0223
2017-11-13 2017-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 45,483 1,523 3.46 3,195 4.62 0.0240
2017-08-04 2017-06-30 13F AMERICAN ELECTRIC POWER COM 025537101 43,960 -1,093 -2.43 3,054 1.06 0.0229
2017-05-10 2017-03-31 13F AMERICAN ELECTRIC POWER COM 025537101 45,053 26,900 148.18 3,022 164.39 0.0244
2017-02-14 2016-12-31 13F AMERICAN ELECTRIC POWER COM 025537101 18,153 2,233 14.03 1,143 11.84 0.0102
2016-11-14 2016-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 15,920 -228 -1.41 1,022 -9.72 0.0090
2016-08-08 2016-06-30 13F AMERICAN ELECTRIC POWER COM 025537101 16,148 653 4.21 1,132 10.12 0.0106
2016-05-16 2016-03-31 13F AMERICAN ELECTRIC POWER COM 025537101 15,495 -317 -2.00 1,028 11.74 0.0097
2016-02-16 2015-12-31 13F AMERICAN ELECTRIC POWER COM 025537101 15,812 -57 -0.36 920 2.00 0.0086
2015-11-12 2015-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 15,869 -593 -3.60 902 3.56 0.0078
2015-08-03 2015-06-30 13F AMERICAN ELECTRIC POWER COM 025537101 16,462 -797 -4.62 871 -10.30 0.0013
2015-05-11 2015-03-31 13F AMERICAN ELECTRIC POWER COM 025537101 17,259 17,259 0.00 971 0.0015
2015-02-05 2014-12-31 13F AMERICAN ELECTRIC POWER COM 025537101 0 -19,580 -100.00 0 -100.00
2014-11-04 2014-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 19,580 408 2.13 1,022 -4.31 0.0017
2014-08-01 2014-06-30 13F AMERICAN ELECTRIC POWER COM 025537101 19,172 322 1.71 1,068 11.83 0.0017
2014-05-06 2014-03-31 13F AMERICAN ELECTRIC POWER COM 025537101 18,850 -213 -1.12 955 7.30 0.0016
2014-02-11 2013-12-31 13F AMERICAN ELECTRIC POWER COM 025537101 19,063 1,096 6.10 890 14.40 0.0015
2013-11-12 2013-09-30 13F AMERICAN ELECTRIC POWER COM 025537101 17,967 330 1.87 778 -1.52 0.0014
2013-08-07 2013-06-30 13F AMERICAN ELECTRIC POWER COM 025537101 17,637 17,637 790 0.0016
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.