Thomas Peterffy - Oct 15, 2021 Form 4 Insider Report for Interactive Brokers Group, Inc. (IBKR)

Role
Chairman, Director
Signature
/s/ Michael Sellitto as authorized signatory for Thomas Peterffy
Stock symbol
IBKR
Transactions as of
Oct 15, 2021
Transactions value $
-$2,870,741
Form type
4
Date filed
10/19/2021, 04:39 PM
Previous filing
Oct 15, 2021
Next filing
Oct 21, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IBKR Class A common stock Sale -$1.29M -18.1K -0.33% $71.50 5.53M Oct 15, 2021 Direct F1, F2
transaction IBKR Class A common stock Sale -$137K -1.9K -0.03% $72.15 5.53M Oct 15, 2021 Direct F1, F3
transaction IBKR Class A common stock Sale -$134K -1.9K -0.03% $70.78 5.53M Oct 18, 2021 Direct F1, F4
transaction IBKR Class A common stock Sale -$950K -13.2K -0.24% $71.96 5.51M Oct 18, 2021 Direct F1, F5
transaction IBKR Class A common stock Sale -$355K -4.9K -0.09% $72.48 5.51M Oct 18, 2021 Direct F1, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.08 to $72.07. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (6) to this Form 4.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.08 to $72.23.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.38 to $71.37.
F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.38 to $72.37.
F6 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.38 to $72.60.