Marshall Wace, LLP American Electric Power CO Inc Transaction History

Marshall Wace, LLP

$90.8 Billion
Q3 2025

A detailed history of Marshall Wace, LLP transactions in American Electric Power CO Inc stock. As of the latest transaction made, Marshall Wace, LLP holds 2,177,718 shares of AEP stock, worth $264 Million. This represents 0.27% of its overall portfolio holdings.

Number of Shares

2,177,718

Previous 1,890,177 15.21%

Holding current value

$264 Million

Previous $196 Million 24.92%

% of portfolio

0.27%

Previous 0.24%

28 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 13, 2025	BUY	$103.26 - $115.0 $29.7 Million - $33.1 Million	287,541 Added 15.21%	2,177,718 $245 Million
Q2 2025 Aug 13, 2025	SELL	$98.59 - $109.11 $23.7 Million - $26.2 Million	-240,547 Reduced 11.29%	1,890,177 $196 Million
Q1 2025 May 15, 2025	BUY	$90.32 - $109.27 $186 Million - $225 Million	2,056,536 Added 2772.06%	2,130,724 $233 Million
Q4 2024 Feb 13, 2025	SELL	$90.91 - $102.21 $21.5 Million - $24.2 Million	-236,342 Reduced 76.11%	74,188 $6.84 Million
Q3 2024 Nov 14, 2024	BUY	$87.11 - $104.95 $7.34 Million - $8.84 Million	84,276 Added 37.25%	310,530 $31.9 Million

Q2 2024 Aug 14, 2024	BUY	$79.51 - $92.67 $18 Million - $21 Million	226,254 New	226,254 $19.9 Million
Q3 2023 Nov 14, 2023	BUY	$74.67 - $87.93 $3.29 Million - $3.87 Million	44,050 New	44,050 $3.31 Million
Q1 2023 May 15, 2023	BUY	$85.41 - $97.95 $4.83 Million - $5.54 Million	56,608 Added 2212.11%	59,167 $5.38 Million
Q4 2022 Feb 14, 2023	SELL	$82.99 - $98.62 $3.13 Million - $3.72 Million	-37,680 Reduced 93.64%	2,559 $242,000
Q3 2022 Nov 14, 2022	BUY	$55.46 - $105.18 $2.23 Million - $4.23 Million	40,239 New	40,239 $3.48 Million
Q1 2022 May 16, 2022	SELL	$84.64 - $99.77 $90.3 Million - $106 Million	-1,066,861 Closed	0 $0
Q4 2021 Feb 14, 2022	BUY	$80.28 - $88.97 $80.2 Million - $88.9 Million	999,221 Added 1477.26%	1,066,861 $94.9 Million
Q3 2021 Nov 15, 2021	SELL	$81.18 - $91.08 $8.56 Million - $9.6 Million	-105,413 Reduced 60.91%	67,640 $5.49 Million
Q2 2021 Aug 13, 2021	BUY	$82.35 - $90.14 $13 Million - $14.3 Million	158,228 Added 1067.31%	173,053 $14.6 Million
Q1 2021 May 17, 2021	SELL	$74.85 - $85.84 $82,335 - $94,424	-1,100 Reduced 6.91%	14,825 $1.26 Million
Q4 2020 Feb 16, 2021	BUY	$80.71 - $93.59 $1.29 Million - $1.49 Million	15,925 New	15,925 $1.33 Million
Q2 2020 Aug 13, 2020	SELL	$72.5 - $87.91 $4.19 Million - $5.09 Million	-57,858 Closed	0 $0
Q1 2020 May 15, 2020	SELL	$70.0 - $104.33 $6.3 Million - $9.4 Million	-90,068 Reduced 60.89%	57,858 $4.63 Million
Q4 2019 Feb 14, 2020	BUY	$88.5 - $95.72 $165,141 - $178,613	1,866 Added 1.28%	147,926 $14 Million
Q3 2019 Nov 14, 2019	BUY	$87.81 - $94.59 $336,839 - $362,847	3,836 Added 2.7%	146,060 $13.7 Million
Q2 2019 Aug 14, 2019	BUY	$82.62 - $91.55 $11.8 Million - $13 Million	142,224 New	142,224 $12.5 Million
Q1 2019 May 14, 2019	SELL	$72.77 - $85.98 $9.13 Million - $10.8 Million	-125,497 Closed	0 $0
Q4 2018 Feb 14, 2019	SELL	$70.22 - $80.36 $6.38 Million - $7.31 Million	-90,916 Reduced 42.01%	125,497 $9.38 Million
Q3 2018 Nov 14, 2018	SELL	$68.87 - $73.4 $3.47 Million - $3.7 Million	-50,424 Reduced 18.9%	216,413 $15.3 Million
Q2 2018 Aug 14, 2018	BUY	$62.93 - $70.55 $16.8 Million - $18.8 Million	266,837 New	266,837 $18.5 Million
Q1 2018 May 15, 2018	SELL	$63.38 - $72.41 $15.1 Million - $17.2 Million	-237,640 Closed	0 $0
Q4 2017 Feb 14, 2018	BUY	$70.29 - $77.63 $11.7 Million - $12.9 Million	166,708 Added 235.03%	237,640 $17.5 Million
Q3 2017 Nov 13, 2017	BUY	$70.24 - $74.55 $4.98 Million - $5.29 Million	70,932	70,932 $4.97 Million

Others Institutions Holding AEP

# of Institutions

1,982

Shares Held

445M

Call Options Held

4.3M

Put Options Held

1.49M

View Full List

About AMERICAN ELECTRIC POWER CO INC

Ticker AEP
Exchange NASDAQ
Sector Utilities
Industry Utilities—Regulated Electric
Shares Outstandng 513,864,000
Market Cap $62.3B
Description
American Electric Power Company, Inc., an electric public utility holding company, engages in the generation, transmission, and distribution of electricity for sale to retail and wholesale customers in the United States. It operates through Vertically Integrated Utilities, Transmission and Distribution Utilities, AEP Transmission Holdco, and Gen...

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Marshall Wace, LLP American Electric Power CO Inc Transaction History