Interactive Brokers Group, Inc.
IBKRCIK 0001381197 · Every Form 4 filed by insiders at this issuer. See financials →
Annual report (10-K)
Latest 10-K/A filed Mar 31, 2026. Sentiment + YoY language diff vs prior year. Read sections →
Signal:Material rewriteFull-doc fallback
Full filing:tone -0.0099Δ-0.000710% similar+12/-1706 ¶
Sentiment via Loughran-McDonald lexicon · YoY diff via Jaccard similarity + paragraph set difference.
Recent 8-K announcements
Per-item disclosure feed. Item 2.02 is the earnings release.
Top insiders
Most active reporters at Interactive Brokers Group, Inc.
| Name | Roles | Filings |
|---|---|---|
| Mendonca Denis | Officer | 12 |
| Harris Lawrence E | Director | 10 |
| Bright Jill | Director | 7 |
| Conkling Lori A | Director | 6 |
| Peterffy William | Director | 6 |
Top performers
Insiders ranked by realized 90-day signed return on their open-market trades at Interactive Brokers Group, Inc.. Minimum 3 scored trades. Returns are signed - a sale followed by a rally counts against the insider.
| # | Insider | Trades | Win rate | Avg | Median | Best | Worst |
|---|---|---|---|---|---|---|---|
| 1 | Peterffy Thomas | 319 | 65% | +4.7% | +7.1% | +28.5% | -28.2% |
| 2 | Nemser Earl H | 51 | 4% | -11.1% | -11.5% | +2.2% | -28.4% |
| 3 | Harris Lawrence E | 5 | 0% | -10.5% | -9.8% | -8.4% | -12.8% |
| 4 | Frank Thomas Aj | 134 | 52% | -6.2% | +0.8% | +17.2% | -32.1% |
| 5 | Brody Paul Jonathan | 122 | 47% | -1.1% | -0.4% | +12.4% | -17.6% |
| 6 | Uhde Philip | 4 | 0% | -0.1% | -0.1% | -0.1% | -0.1% |
All filings
269 Form 4 / 4-A filings, newest first
| Filed | Top transaction | Shares | Price | Value | ||
|---|---|---|---|---|---|---|