IBKR Interactive Brokers Group, Inc.
Interactive Brokers Group, Inc. (IBKR) Insider Activity
What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.
How much of that selling was preplanned? 0% planned / 100% discretionary
Largest single sale: $2.0M.
Where they traded
Last open-market purchase: September 1, 2026 , by Conkling Lori A .
Recent open-market activity
| Date | Insider | Role | Action | Shares | Price | Value | Held after |
|---|---|---|---|---|---|---|---|
| Conkling Lori A | Director | Buy | 25 | $94.53 | $2.4K | 2,559 | |
| Conkling Lori A | Director | Buy | 25 | $87.03 | $2.2K | 2,534 | |
| Conkling Lori A | Director | Buy | 25 | $88.03 | $2.2K | 2,509 | |
| Conkling Lori A | Director | Buy | 25 | $86.10 | $2.2K | 2,484 | |
| Conkling Lori A | Director | Buy | 25 | $79.64 | $2.0K | 2,459 | |
| Harris Lawrence E | Director | Sell | 26,000 | $76.93 | $2.0M | 173,482 −13% of holding | |
| Conkling Lori A | Director | Buy | 25 | $68.38 | $1.7K | 2,434 |
Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.