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Marshall Wace, LLP

SEC CIK
0001318757
Latest filing
Aug 13, 2026

OMC holding history

Omnicom Group 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.

OMC overviewAll 13F holders of OMCFull Q2 2026 holdings

Shares (Q2 2026)
0
Sold out in Q2 2026
Value
$0
% of portfolio
0.0%
Quarters held
14
Since Q1 2021
Holdings of OMC by Marshall Wace, LLP, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20260$00.0%−5,100−100.0%Sold outHolders
Q1 20265,100$384.1K<0.1%−99,472−95.1%ReducedHolders
Q4 2025104,572$8.44M<0.1%−200,914−65.8%ReducedHolders
Q3 2025305,486$24.9M<0.1%−286,226−48.4%ReducedHolders
Q2 2025591,712$42.6M0.1%−240,136−28.9%ReducedHolders
Q1 2025831,848$69.0M0.1%+796,807+2,273.9%AddedHolders
Q4 202435,041$3.01M<0.1%+35,041NewHolders
Q1 20240$00.0%−4,900−100.0%Sold outHolders
Q4 20234,900$423.9K<0.1%+4,900NewHolders
Q2 20230$00.0%−36,300−100.0%Sold outHolders
Q1 202336,300$3.42M<0.1%+36,300NewHolders
Q4 20220$00.0%−230,939−100.0%Sold outHolders
Q3 2022230,939$14.6M<0.1%+125,295+118.6%AddedHolders
Q2 2022105,644$6.72M<0.1%+105,644NewHolders
Q1 20220$00.0%−835,595−100.0%Sold outHolders
Q4 2021835,595$61.2M0.1%+530,470+173.9%AddedHolders
Q3 2021305,125$22.1M0.1%+227,280+292.0%AddedHolders
Q2 202177,845$6.23M<0.1%+65,771+544.7%AddedHolders
Q1 202112,074$896.0K<0.1%––Holders

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