American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionMather Group, Llc.
Latest Disclosed Ownership5,433 shares
Latest Disclosed Value $ 712,138
Mather Group, Llc. reports 3.64% increase in ownership of AEP / American Electric Power Company, Inc.

On April 13, 2026 - Mather Group, Llc. filed a 13F-HR form disclosing ownership of 5,433 shares of American Electric Power Company, Inc. (MX:AEP) valued at $712,138 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 5,242 shares of American Electric Power Company, Inc.. This represents a change in shares of 3.64% 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)
2026-04-13 2026-03-31 13F AMERICAN ELEC PWR COM 025537101 5,433 191 3.64 712 17.88 0.0071
2026-01-13 2025-12-31 13F AMERICAN ELEC PWR COM 025537101 5,242 -4,641 -46.96 604 -45.63 0.0062
2025-10-21 2025-09-30 13F AMERICAN ELEC PWR COM 025537101 9,883 842 9.31 1,112 18.44 0.0112
2025-07-15 2025-06-30 13F AMERICAN ELEC PWR COM 025537101 9,041 718 8.63 938 3.19 0.0100
2025-04-25 2025-03-31 13F AMERICAN ELEC PWR COM 025537101 8,323 5,729 220.86 909 280.33 0.0105
2025-01-27 2024-12-31 13F AMERICAN ELEC PWR COM 025537101 2,594 80 3.18 239 -7.00 0.0031
2024-10-07 2024-09-30 13F AMERICAN ELEC PWR COM 025537101 2,514 -5,221 -67.50 258 -61.35 0.0033
2024-07-09 2024-06-30 13F AMERICAN ELEC PWR COM 025537101 7,735 1,878 32.06 666 40.00 0.0082
2024-04-09 2024-03-31 13F AMERICAN ELEC PWR COM 025537101 5,857 1 0.02 476 0.00 0.0075
2024-02-05 2023-12-31 13F AMERICAN ELEC PWR COM 025537101 5,856 198 3.50 476 11.76 0.0075
2023-11-13 2023-09-30 13F AMERICAN ELEC PWR COM 025537101 5,658 79 1.42 426 -9.38 0.0076
2023-08-08 2023-06-30 13F AMERICAN ELEC PWR COM 025537101 5,579 -1,682 -23.16 470 -28.94 0.0075
2023-05-09 2023-03-31 13F AMERICAN ELEC PWR COM 025537101 7,261 20 0.28 661 -3.93 0.0117
2023-03-10 2022-12-31 13F AMERICAN ELEC PWR COM 025537101 7,241 -222 -2.97 687 6.51 0.0132
2022-11-15 2022-09-30 13F AMERICAN ELEC PWR COM 025537101 7,463 464 6.63 645 -3.87 0.0139
2022-08-16 2022-06-30 13F AMERICAN ELEC PWR COM 025537101 6,999 -47 -0.67 671 -4.55 0.0153
2022-05-13 2022-03-31 13F AMERICAN ELEC PWR COM 025537101 7,046 63 0.90 703 13.20 0.0139
2022-02-15 2021-12-31 13F AMERICAN ELEC PWR COM 025537101 6,983 272 4.05 621 13.94 0.0122
2021-11-04 2021-09-30 13F AMERICAN ELEC PWR COM 025537101 6,711 -102 -1.50 545 -5.38 0.0131
2021-08-13 2021-06-30 13F AMERICAN ELEC PWR COM 025537101 6,813 53 0.78 576 0.52 0.0145
2021-05-14 2021-03-31 13F AMERICAN ELEC PWR COM 025537101 6,760 312 4.84 573 6.70 0.0162
2021-02-12 2020-12-31 13F AMERICAN ELEC PWR COM 025537101 6,448 -217 -3.26 537 -1.47 0.0175
2020-11-13 2020-09-30 13F AMERICAN ELEC PWR COM 025537101 6,665 425 6.81 545 9.66 0.0214
2020-08-14 2020-06-30 13F AMERICAN ELEC PWR COM 025537101 6,240 6,240 497 0.0228
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.