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Livermore
Livermore
ZHEN

Marshall Wace, LLP

SEC CIK
0001318757
Latest filing
Aug 13, 2026

IBKR holding history

Interactive Brokers 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.

IBKR overviewAll 13F holders of IBKRFull Q2 2026 holdings

Shares (Q2 2026)
414,093
Value
$36.0M
% of portfolio
<0.1%
Quarters held
22
Since Q1 2021
Holdings of IBKR by Marshall Wace, LLP, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026414,093$36.0M<0.1%−463,673−52.8%ReducedHolders
Q1 2026877,766$58.9M0.1%−2,326,481−72.6%ReducedHolders
Q4 20253,204,247$206.1M0.2%−280,304−8.0%ReducedHolders
Q3 20253,484,551$239.8M0.3%−1,930,819−35.7%ReducedHolders
Q2 20255,415,370$300.1M0.4%+635,742+13.3%AddedConverted for a 4-for-1 splitHolders
Q1 20251,194,907$197.9M0.3%+683,271+133.5%AddedHolders
Q4 2024511,636$90.4M0.1%−879,460−63.2%ReducedHolders
Q3 20241,391,096$193.9M0.3%−1,115,963−44.5%ReducedHolders
Q2 20242,507,059$307.4M0.4%+481,826+23.8%AddedHolders
Q1 20242,025,233$226.2M0.4%−1,135,901−35.9%ReducedHolders
Q4 20233,161,134$262.1M0.5%+619,455+24.4%AddedHolders
Q3 20232,541,679$220.0M0.5%+94,140+3.8%AddedHolders
Q2 20232,447,539$203.3M0.4%+620,796+34.0%AddedHolders
Q1 20231,826,743$150.8M0.4%−201,075−9.9%ReducedHolders
Q4 20222,027,818$146.7M0.4%−1,164,167−36.5%ReducedHolders
Q3 20223,191,985$204.0M0.5%−623,727−16.3%ReducedHolders
Q2 20223,815,712$209.9M0.5%−677,782−15.1%ReducedHolders
Q1 20224,493,494$296.2M0.6%+134,053+3.1%AddedHolders
Q4 20214,359,441$346.2M0.7%+2,625,600+151.4%AddedHolders
Q3 20211,733,841$108.1M0.5%+385,918+28.6%AddedHolders
Q2 20211,347,923$88.6M0.5%+679,700+101.7%AddedHolders
Q1 2021668,223$48.8M0.3%––Holders

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