American Electric Power Company, Inc.
MX ˙ BMV ˙ US0255371017
SecurityMX:AEP / American Electric Power Company, Inc.
InstitutionAdage Capital Partners Gp, L.l.c.
ManagerPhil Gross, Robert Atchinson
Latest Disclosed Ownership729,506 shares
Latest Disclosed Value $ 95,623,646
Adage Capital Partners Gp, L.l.c. ownership in AEP / American Electric Power Company, Inc.

On May 15, 2026 - Adage Capital Partners Gp, L.l.c. filed a 13F-HR form disclosing ownership of 729,506 shares of American Electric Power Company, Inc. (MX:AEP) valued at $95,623,646 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 14, 2024 disclosing 0 shares of American Electric Power Company, Inc..

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)
2026-05-15 2026-03-31 13F AMERICAN ELEC PWR COM 025537101 729,506 729,506 95,624 0.1475
2024-08-14 2024-06-30 13F AMERICAN ELEC PWR COM 025537101 0 -265,806 -100.00 0 -100.00
2024-05-15 2024-03-31 13F AMERICAN ELEC PWR COM 025537101 265,806 42,500 19.03 22,886 26.19 0.0432
2024-02-14 2023-12-31 13F AMERICAN ELEC PWR COM 025537101 223,306 111,100 99.01 18,137 114.88 0.0375
2023-11-14 2023-09-30 13F AMERICAN ELEC PWR COM 025537101 112,206 112,206 8,440 0.0191
2023-08-14 2023-06-30 13F AMERICAN ELEC PWR COM 025537101 0 -64,506 -100.00 0 -100.00
2023-05-15 2023-03-31 13F AMERICAN ELEC PWR COM 025537101 64,506 41,800 184.09 5,869 172.34 0.0132
2023-02-14 2022-12-31 13F AMERICAN ELEC PWR COM 025537101 22,706 -400,700 -94.64 2,156 -94.11 0.0052
2022-11-14 2022-09-30 13F AMERICAN ELEC PWR COM 025537101 423,406 -111,400 -20.83 36,603 -28.66 0.0908
2022-08-15 2022-06-30 13F AMERICAN ELEC PWR COM 025537101 534,806 8,900 1.69 51,309 -2.21 0.1176
2022-05-16 2022-03-31 13F AMERICAN ELEC PWR COM 025537101 525,906 -10,800 -2.01 52,470 9.88 0.0996
2022-02-14 2021-12-31 13F AMERICAN ELEC PWR COM 025537101 536,706 -171,700 -24.24 47,751 -16.97 0.0860
2021-11-15 2021-09-30 13F AMERICAN ELEC PWR COM 025537101 708,406 -116,244 -14.10 57,508 -17.56 0.1133
2021-08-16 2021-06-30 13F AMERICAN ELEC PWR COM 025537101 824,650 276,900 50.55 69,757 50.36 0.1366
2021-05-17 2021-03-31 13F AMERICAN ELEC PWR COM 025537101 547,750 5,000 0.92 46,394 2.65 0.0947
2021-02-16 2020-12-31 13F AMERICAN ELEC PWR COM 025537101 542,750 293,000 117.32 45,195 121.41 0.0985
2020-11-16 2020-09-30 13F AMERICAN ELEC PWR COM 025537101 249,750 -310,000 -55.38 20,412 -54.21 0.0511
2020-08-14 2020-06-30 13F AMERICAN ELEC PWR COM 025537101 559,750 -6,200 -1.10 44,578 -1.52 0.1141
2020-05-15 2020-03-31 13F AMERICAN ELEC PWR COM 025537101 565,950 -5,714 -1.00 45,265 -16.22 0.1352
2020-02-14 2019-12-31 13F AMERICAN ELEC PWR COM 025537101 571,664 -33,850 -5.59 54,028 -4.76 0.1327
2019-11-14 2019-09-30 13F AMERICAN ELEC PWR COM 025537101 605,514 9,834 1.65 56,731 8.21 0.1393
2019-08-14 2019-06-30 13F AMERICAN ELEC PWR COM 025537101 595,680 -9,000 -1.49 52,426 3.52 0.1305
2019-05-15 2019-03-31 13F AMERICAN ELEC PWR COM 025537101 604,680 -9,900 -1.61 50,642 10.25 0.1266
2019-02-14 2018-12-31 13F AMERICAN ELEC PWR COM 025537101 614,580 614,580 45,934 0.1273
2018-08-14 2018-06-30 13F AMERICAN ELEC PWR COM 025537101 0 -646,284 -100.00 0 -100.00
2018-05-15 2018-03-31 13F AMERICAN ELEC PWR COM 025537101 646,284 -43,700 -6.33 44,329 -12.67 0.1032
2018-02-14 2017-12-31 13F AMERICAN ELEC PWR COM 025537101 689,984 -13,400 -1.91 50,762 2.74 0.1148
2017-11-14 2017-09-30 13F AMERICAN ELEC PWR COM 025537101 703,384 -497,300 -41.42 49,406 -40.77 0.1201
2017-08-14 2017-06-30 13F AMERICAN ELEC PWR COM 025537101 1,200,684 491,200 69.23 83,412 75.13 0.2041
2017-05-15 2017-03-31 13F AMERICAN ELEC PWR COM 025537101 709,484 10,048 1.44 47,628 8.16 0.1200
2017-02-14 2016-12-31 13F AMERICAN ELEC PWR COM 025537101 699,436 -6,664 -0.94 44,036 -2.87 0.1203
2016-11-14 2016-09-30 13F AMERICAN ELEC PWR COM 025537101 706,100 -29,400 -4.00 45,339 -12.05 0.1249
2016-08-15 2016-06-30 13F AMERICAN ELEC PWR COM 025537101 735,500 7,273 1.00 51,551 6.61 0.1406
2016-05-16 2016-03-31 13F AMERICAN ELEC PWR COM 025537101 728,227 -300 -0.04 48,354 13.91 0.1311
2016-02-16 2015-12-31 13F AMERICAN ELEC PWR COM 025537101 728,527 -18,573 -2.49 42,451 -0.07 0.1113
2015-11-16 2015-09-30 13F AMERICAN ELEC PWR COM 025537101 747,100 -9,200 -1.22 42,480 6.04 0.1179
2015-08-14 2015-06-30 13F AMERICAN ELEC PWR COM 025537101 756,300 0 0.00 40,062 -5.83 0.0999
2015-05-15 2015-03-31 13F AMERICAN ELEC PWR COM 025537101 756,300 30,100 4.14 42,542 -3.52 0.1037
2015-02-17 2014-12-31 13F AMERICAN ELEC PWR COM 025537101 726,200 726,200 0.00 44,094 0.1079
2014-11-14 2014-09-30 13F AMERICAN ELEC PWR COM 025537101 0 -747,223 -100.00 0 -100.00
2014-08-14 2014-06-30 13F AMERICAN ELEC PWR COM 025537101 747,223 -2,091,800 -73.68 41,672 -71.03 0.1077
2014-05-15 2014-03-31 13F AMERICAN ELEC PWR COM 025537101 2,839,023 187,500 7.07 143,825 16.05 0.3927
2014-02-14 2013-12-31 13F AMERICAN ELEC PWR COM 025537101 2,651,523 650,000 32.48 123,933 42.84 0.3282
2013-11-14 2013-09-30 13F AMERICAN ELEC PWR COM 025537101 2,001,523 1,300,000 185.31 86,766 176.20 0.2494
2013-08-14 2013-06-30 13F AMERICAN ELEC PWR COM 025537101 701,523 5,500 0.79 31,414 -7.19 0.0968
2013-07-12 2013-03-31 13F/A-1 AMERICAN ELEC PWR COM 025537101 696,023 696,023 33,847 0.1118
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.