FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response...
0.5                       
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Peterffy Thomas
2. Issuer Name and Ticker or Trading Symbol

Interactive Brokers Group, Inc. [ IBKR ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Chairman
(Last)          (First)          (Middle)

PHILLIPS POINT EAST TOWER, SUITE 1001, 777 S. FLAGLER DRIVE
3. Date of Earliest Transaction (MM/DD/YYYY)

11/10/2021
(Street)

WEST PALM BEACH, FL 33401
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Class A common stock 11/10/2021  S  13499 (1)D$73.2 (2)5174012 D  
Class A common stock 11/10/2021  S  6501 (1)D$73.56 (3)5167511 D  
Class A common stock 11/11/2021  S  20000 (1)D$73.51 (4)5147511 D  

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares

Explanation of Responses:
(1) The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
(2) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.44 to $73.43. 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) - (4) to this Form 4.
(3) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $73.44 to $73.75.
(4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $73.16 to $74.10.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Peterffy Thomas
PHILLIPS POINT EAST TOWER, SUITE 1001
777 S. FLAGLER DRIVE
WEST PALM BEACH, FL 33401
X
Chairman

Signatures
/s/ Michael Sellitto as authorized signatory for Thomas Peterffy11/12/2021
**Signature of Reporting PersonDate

Grafico Azioni Interactive Brokers (NASDAQ:IBKR)
Storico
Da Feb 2024 a Mar 2024 Clicca qui per i Grafici di Interactive Brokers
Grafico Azioni Interactive Brokers (NASDAQ:IBKR)
Storico
Da Mar 2023 a Mar 2024 Clicca qui per i Grafici di Interactive Brokers