Position history for CANTILLON CAPITAL MANAGEMENT LLC's holdings in INTERACTIVE BROKERS GROUP IN
CANTILLON CAPITAL MANAGEMENT LLC holds 11.2M shares of IBKR (INTERACTIVE BROKERS GROUP IN), worth $754.3M as of 2026-Q1. The position was decreased (-11.9% shares). IBKR represents 5.0% of CANTILLON CAPITAL MANAGEMENT LLC's portfolio.
Current Value
$754.3M
Current Shares
11.2M
Total Value Change
+$327.8M
Total Shares Change
+7.8M
Other major holders of IBKR: Select Equity Group, L.P.
Decreased |
| 11.2M |
-11.9% |
| $754.3M |
| 5.0% |
| $69.40 |
0 |
| 2025-Q4 | Increased | 12.8M | +0.8% | $820.6M | 4.4% | $65.00 | 60 |
| 2025-Q3 | Decreased | 12.7M | -1.1% | $871.4M | 4.8% | $68.72 | 0 |
| 2025-Q2 | Increased | 12.8M | +288.7% | $709.4M | 4.1% | $53.82 | 95 |
| 2025-Q1 | Decreased | 3.3M | -3.0% | $545.4M | 3.5% | $41.01 | 0 |
| 2024-Q4 | Increased | 3.4M | +0.5% | $599.9M | 3.6% | $44.50 | 59 |
| 2024-Q3 | Decreased | 3.4M | -2.9% | $470.7M | 2.9% | $34.16 | 0 |
| 2024-Q2 | Decreased | 3.5M | -4.8% | $426.5M | 2.9% | $30.39 | 0 |