INTERACTIVE BROKERS GROUP IN

Ticker: IBKR CUSIP: 45841N107 Class: EQTY

DEARBORN PARTNERS LLC's Holding History (CIK: 0001206792)

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

Q1 2020
Shares 5,074 Value ($000) $219 Avg Close $11.67 Range $8.14 - $14.11
Q4 2019
Shares 7,074 Value ($000) $330 Avg Close $11.31 Range $10.72 - $12.50
Q3 2019
Shares 7,074 Value ($000) $380 Avg Close $11.96 Range $10.69 - $13.30
Q2 2019
Shares 7,074 Value ($000) $383 Avg Close $13.01 Range $11.86 - $14.22
Q1 2019
Shares 7,074 Value ($000) $367 Avg Close $12.59 Range $11.61 - $13.91
Q4 2018
Shares 7,074 Value ($000) $387 Avg Close $12.75 Range $11.08 - $14.96
Q3 2018
Shares 7,074 Value ($000) $391 Avg Close $14.48 Range $13.14 - $15.95
Q2 2018
Shares 7,074 Value ($000) $456 Avg Close $17.25 Range $15.13 - $19.13