Mario Gabelli's IBKR Position Overview
Mario Gabelli (via Gamco Investors, Inc. Et Al) currently holds 17.4K shares of Interactive Brokers Group, Inc. (IBKR) worth $1.2 M, representing 0.01% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 50 quarters.
Based on 13F filings since 2013, Mario Gabelli has maintained a long-term strategic position in IBKR, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2020, adding 11.2K shares. Largest reduction occurred in Q1 2018, reducing 38.4K shares.
Analysis based on 13F filings available since 2013 Q2
Mario Gabelli's Interactive Brokers Group (IBKR) Holding Value Over Time
Track share changes against reported price movement
Quarterly Interactive Brokers Group (IBKR) Trades by Mario Gabelli
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +162,404 | Add 0.00% | 162,400 | $3.99 |
| Q1 2015 | -16,000 | Reduce 9.85% | 146,400 | $8.50 |
| Q2 2015 | -10,400 | Reduce 7.10% | 136,000 | $10.39 |
| Q4 2015 | -136,000 | Sold Out | 136,000 | $0.00 |
| Q1 2017 | +115,600 | New Buy | 115,600 | $8.68 |
| Q2 2017 | +800 | Add 0.69% | 116,400 | $9.36 |
| Q3 2017 | -5,200 | Reduce 4.47% | 111,200 | $11.26 |
| Q4 2017 | -5,600 | Reduce 5.04% | 105,600 | $14.80 |
| Q1 2018 | -38,400 | Reduce 36.36% | 67,200 | $16.82 |
| Q2 2018 | -22,800 | Reduce 33.93% | 44,400 | $16.10 |
| Q3 2018 | -1,600 | Reduce 3.60% | 42,800 | $13.83 |
| Q3 2019 | -4,800 | Reduce 11.21% | 38,000 | $13.45 |
| Q4 2019 | -38,000 | Sold Out | 38,000 | $0.00 |
| Q2 2020 | +20,100 | New Buy | 20,100 | $10.45 |
| Q3 2020 | +11,200 | Add 55.72% | 31,300 | $12.08 |
| Q4 2020 | +10,100 | Add 32.27% | 41,400 | $15.24 |
| Q1 2021 | +3,200 | Add 7.73% | 44,600 | $18.25 |
| Q2 2021 | -500 | Reduce 1.12% | 44,100 | $16.44 |
| Q3 2021 | -10,000 | Reduce 22.68% | 34,100 | $15.57 |
| Q4 2021 | -9,700 | Reduce 28.45% | 24,400 | $19.84 |
| Q1 2022 | +8,800 | Add 36.07% | 33,200 | $16.48 |
| Q2 2022 | -4,452 | Reduce 13.41% | 28,748 | $13.74 |
| Q3 2022 | -11,200 | Reduce 38.96% | 17,548 | $15.96 |
| Q4 2022 | -17,548 | Sold Out | 17,548 | $0.00 |
| Q1 2023 | +10,200 | New Buy | 10,200 | $20.64 |
| Q2 2023 | +800 | Add 7.84% | 11,000 | $20.77 |
| Q4 2023 | +1,000 | Add 9.09% | 12,000 | $20.72 |
| Q1 2024 | -600 | Reduce 5.00% | 11,400 | $27.93 |
| Q3 2024 | +11,200 | Add 98.25% | 22,600 | $34.84 |
| Q4 2024 | -2,400 | Reduce 10.62% | 20,200 | $44.17 |
| Q1 2025 | -80 | Reduce 0.40% | 20,120 | $41.40 |
| Q2 2025 | +2,960 | Add 14.71% | 23,080 | $55.41 |
| Q3 2025 | -5,655 | Reduce 24.50% | 17,425 | $68.81 |
Mario Gabelli's Interactive Brokers Group Investment FAQs
Mario Gabelli first purchased Interactive Brokers Group, Inc. (IBKR) in Q2 2013, acquiring 162,400 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli has held Interactive Brokers Group, Inc. (IBKR) for 50 quarters since Q2 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli's largest addition to Interactive Brokers Group, Inc. (IBKR) was in Q2 2013, adding 162,400 shares worth $648,000. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Mario Gabelli's firm, Gamco Investors, Inc. Et Al, owns 17,425 shares of Interactive Brokers Group, Inc. (IBKR), valued at approximately $1.2 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, Interactive Brokers Group, Inc. (IBKR) represents approximately 0.01% of Mario Gabelli's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Mario Gabelli's peak holding in Interactive Brokers Group, Inc. (IBKR) was 162,400 shares, as reported at the end of Q2 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.