SEC 13F Intelligence

O'brien Greene & Co. Inc / IBKR

O'brien Greene & Co. Inc’s Interactive Brokers Group In Position

Does O'brien Greene & Co. Inc own Interactive Brokers Group In (IBKR)? Yes — 252.7K shares worth $17M (+4.80% of its 13F portfolio) as of Q1 2026, down from 259.3K shares the prior filed quarter.

Position Value
$17M
Q1 2026
Shares
252.7K
% of Portfolio
+4.80%
Quarters Held
11
currently held

Position History IBKR

Reported value by quarter
Q3 ’23: $7MQ3 ’23Q4 ’23: $7MQ1 ’24: $10MQ1 ’24Q2 ’24: $11MQ3 ’24: $11MQ3 ’24Q4 ’24: $13MQ1 ’25: $12MQ1 ’25Q2 ’25: $16MQ3 ’25: $18MQ3 ’25Q4 ’25: $17MQ1 ’26: $17MQ1 ’26filingsflow.com
QuarterSharesValue% of Portfolio
Q1 2026252.7K$17M+4.80%
Q4 2025259.3K$17M+4.95%
Q3 2025268.1K$18M+5.67%
Q2 2025281.7K$16M+5.11%
Q1 202572.7K$12M+4.04%
Q4 202475.9K$13M+4.35%
Q3 202481.7K$11M+3.55%
Q2 202486.5K$11M+3.36%
Q1 202487.1K$10M+3.20%
Q4 202386.2K$7M+2.51%
Q3 202385.5K$7M+2.71%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See O'brien Greene & Co. Inc’s full portfolio or all institutional holders of IBKR.