Skip to main content

Marshall Wace, LLP

SEC CIK
0001318757
Latest filing
Aug 13, 2026

AEP holding history

American Electric Power Co Inc in every 13F filed by Marshall Wace, LLP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

AEP overviewAll 13F holders of AEPFull Q2 2026 holdings

Shares (Q2 2026)
396,968
Value
$54.3M
% of portfolio
<0.1%
Quarters held
17
Since Q1 2021
Holdings of AEP by Marshall Wace, LLP, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026396,968$54.3M<0.1%+350,368+751.9%AddedHolders
Q1 202646,600$6.11M<0.1%−286,731−86.0%ReducedHolders
Q4 2025333,331$38.4M<0.1%−1,844,387−84.7%ReducedHolders
Q3 20252,177,718$245.0M0.3%+287,541+15.2%AddedHolders
Q2 20251,890,177$196.1M0.2%−240,547−11.3%ReducedHolders
Q1 20252,130,724$232.8M0.3%+2,056,536+2,772.1%AddedHolders
Q4 202474,188$6.84M<0.1%−236,342−76.1%ReducedHolders
Q3 2024310,530$31.9M<0.1%+84,276+37.2%AddedHolders
Q2 2024226,254$19.9M<0.1%+226,254NewHolders
Q4 20230$00.0%−44,050−100.0%Sold outHolders
Q3 202344,050$3.31M<0.1%+44,050NewHolders
Q2 20230$00.0%−59,167−100.0%Sold outHolders
Q1 202359,167$5.38M<0.1%+56,608+2,212.1%AddedHolders
Q4 20222,559$243.0K<0.1%−37,680−93.6%ReducedHolders
Q3 202240,239$3.48M<0.1%+40,239NewHolders
Q1 20220$00.0%−1,066,861−100.0%Sold outHolders
Q4 20211,066,861$94.9M0.2%+999,221+1,477.3%AddedHolders
Q3 202167,640$5.49M<0.1%−105,413−60.9%ReducedHolders
Q2 2021173,053$14.6M0.1%+158,228+1,067.3%AddedHolders
Q1 202114,825$1.26M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.