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Livermore
Livermore
ZHEN

Winmill & Co. Inc

SEC CIK
0000052234
Latest filing
Aug 13, 2026

IBKR holding history

Interactive Brokers Group, Inc. in every 13F filed by Winmill & Co. Inc, 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)
327,200
Value
$28.5M
% of portfolio
6.3%
Quarters held
11
Since Q4 2023
Holdings of IBKR by Winmill & Co. Inc, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026327,200$28.5M6.3%00.0%UnchangedHolders
Q1 2026327,200$21.9M6.3%00.0%UnchangedHolders
Q4 2025327,200$21.0M5.6%00.0%UnchangedHolders
Q3 2025327,200$22.5M5.5%00.0%UnchangedHolders
Q2 2025327,200$18.1M5.0%00.0%UnchangedConverted for a 4-for-1 splitHolders
Q1 202581,800$13.5M4.1%00.0%UnchangedHolders
Q4 202481,800$14.5M4.7%00.0%UnchangedHolders
Q3 202481,800$11.4M3.8%00.0%UnchangedHolders
Q2 202481,800$10.0M3.4%00.0%UnchangedHolders
Q1 202481,800$9.14M2.6%00.0%UnchangedHolders
Q4 202381,800$6.78M2.2%+81,800NewHolders