INTERACTIVE BROKERS GROUP IN

Ticker: IBKR CUSIP: 45841N107 Class: EQTY

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 4,256 Value ($000) $274 Avg Close $66.89 Range $58.88 - $73.26
Q3 2025
Shares 4,404 Value ($000) $303 Avg Close $62.79 Range $53.01 - $70.18
Q2 2025
Shares 4,065 Value ($000) $225 Avg Close $47.28 Range $32.69 - $55.48