Steve Mandel's IBKR Position Overview
Steve Mandel (via Lone Pine Capital LLC) currently holds 577,666 shares of Interactive Brokers Group, Inc. (IBKR) worth $50.28 M, representing 0.31% of the portfolio. First purchased in 2026-Q2, this recently established position has been held for 1 quarters.
Based on recent 13F filings, Steve Mandel has initiated a new position in IBKR, representing a fresh investment thesis on this company. Insufficient history to summarize additions or reductions.
Analysis based on 13F filings available since 2013 Q2
Steve Mandel's Interactive Brokers Group (IBKR) Holding Value Over Time
Track share changes against reported price movement
Quarterly Interactive Brokers Group (IBKR) Trades by Steve Mandel
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2026 | +577,666 | New Buy | 577,666 | $87.04 |
Steve Mandel's Interactive Brokers Group Investment FAQs
Steve Mandel first purchased Interactive Brokers Group, Inc. (IBKR) in Q2 2026, acquiring 577,666 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Steve Mandel has held Interactive Brokers Group, Inc. (IBKR) for 1 quarters since Q2 2026.
Steve Mandel's largest addition to Interactive Brokers Group, Inc. (IBKR) was in Q2 2026, adding 577,666 shares worth $50.28 M.
According to the latest 13F filing for Q2 2026, Steve Mandel's firm, Lone Pine Capital LLC, owns 577,666 shares of Interactive Brokers Group, Inc. (IBKR), valued at approximately $50.28 M.
As of the Q2 2026 filing, Interactive Brokers Group, Inc. (IBKR) represents approximately 0.31% of Steve Mandel's publicly disclosed stock portfolio, making it one of their key holdings.
Steve Mandel's peak holding in Interactive Brokers Group, Inc. (IBKR) was 577,666 shares, as reported at the end of Q2 2026.