American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionGreat Lakes Advisors, Llc
Latest Disclosed Ownership1,724 shares
Latest Disclosed Value $ 225,999
Great Lakes Advisors, Llc reports 6.66% decrease in ownership of AEP / American Electric Power Company, Inc.

On May 11, 2026 - Great Lakes Advisors, Llc filed a 13F-HR form disclosing ownership of 1,724 shares of American Electric Power Company, Inc. (MX:AEP) valued at $225,999 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,847 shares of American Electric Power Company, Inc.. This represents a change in shares of -6.66% 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)
2026-05-11 2026-03-31 13F American Electric Power COM 025537101 1,724 -123 -6.66 226 6.13 0.0005
2026-02-12 2025-12-31 13F American Electric Power COM 025537101 1,847 51 2.84 213 4.95 0.0017
2025-11-03 2025-09-30 13F American Electric Power COM 025537101 1,796 1,796 202 0.0017
2025-08-11 2025-06-30 13F American Electric Power COM 025537101 0 -2,269 -100.00 0 -100.00
2025-05-16 2025-03-31 13F American Electric Power COM 025537101 2,269 2,269 248 0.0022
2025-02-10 2024-12-31 13F American Electric Power COM 025537101 0 -6,228 -100.00 0 -100.00
2024-11-04 2024-09-30 13F American Electric Power COM 025537101 6,228 6,228 639 0.0053
2020-08-06 2020-06-30 13F American Electric Power COM 025537101 0 -7,971 -100.00 0 -100.00
2020-05-08 2020-03-31 13F American Electric Power COM 025537101 7,971 -1,631 -16.99 638 -29.66 0.0186
2020-02-07 2019-12-31 13F American Electric Power COM 025537101 9,602 -1,245 -11.48 907 -10.73 0.0195
2019-11-06 2019-09-30 13F American Electric Power COM 025537101 10,847 7,888 266.58 1,016 290.77 0.0223
2019-08-05 2019-06-30 13F American Electric Power COM 025537101 2,959 -52 -1.73 260 3.17 0.0057
2019-05-07 2019-03-31 13F American Electric Power COM 025537101 3,011 3,011 252 0.0056
2018-02-07 2017-12-31 13F AMERICAN ELEC PWR CS 025537101 0 -2,896 -100.00 0 -100.00
2017-11-13 2017-09-30 13F AMERICAN ELEC PWR CS 025537101 2,896 0 0.00 203 1.00 0.0048
2017-08-07 2017-06-30 13F AMERICAN ELEC PWR CS 025537101 2,896 2,896 201 0.0049
2017-05-09 2017-03-31 13F AMERICAN ELEC PWR CS 025537101 0 -3,639 -100.00 0 -100.00
2017-02-10 2016-12-31 13F AMERICAN ELEC PWR CS 025537101 3,639 0 0.00 229 -2.14 0.0060
2016-11-07 2016-09-30 13F AMERICAN ELEC PWR CS 025537101 3,639 -3,208 -46.85 234 -51.25 0.0063
2016-08-12 2016-06-30 13F AMERICAN ELEC PWR CS 025537101 6,847 450 7.03 480 12.94 0.0131
2016-05-11 2016-03-31 13F AMERICAN ELEC PWR CS 025537101 6,397 6,397 146.04 425 266.38 0.0116
2013-11-27 2013-09-30 13F AMERICAN ELEC PWR COM 025537101 0 -2,600 -100.00 0 -100.00
2013-08-16 2013-06-30 13F AMERICAN ELEC PWR COM 025537101 2,600 2,600 116 0.0054
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.