SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Uhde Philip
(Last) (First) (Middle)
63 CROSBY STREET, 4TH FLOOR
(Street)
NEW YORK NY 10012
(City) (State) (Zip)
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
Officer (give title below) X Other (specify below)
See Remarks
3. Date of Earliest Transaction (Month/Day/Year)
04/23/2020
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X 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. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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, $0.01 par value per share 04/23/2020 J(2) 2,409,873 D $0(2) 1,652 I See footnote(1)
Common Stock 04/23/2020 S 1,652 D $39.2(3) 0 I See footnote(1)
Common Stock 108,844(4) D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. 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: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
1. Name and Address of Reporting Person*
Uhde Philip
(Last) (First) (Middle)
63 CROSBY STREET, 4TH FLOOR
(Street)
NEW YORK NY 10012
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
X Director 10% Owner
Officer (give title below) X Other (specify below)
See Remarks
1. Name and Address of Reporting Person*
Echinus Advisors, LLC
(Last) (First) (Middle)
63 CROSBY STREET
4TH FLOOR
(Street)
NEW YORK NY 10012
(City) (State) (Zip)
Relationship of Reporting Person(s) to Issuer
X Director 10% Owner
Officer (give title below) X Other (specify below)
See Remarks
Explanation of Responses:
1. These securities were held for the account of Echinus Partners, LP, a Delaware limited partnership (the "Echinus Fund"). Echinus Advisors, LLC, a Delaware limited liability Company ("Echinus"), serves as the investment manager to the Echinus Fund. Mr. Philip Uhde ("Mr. Uhde") is the manager and majority controlling person of Echinus. Each Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein, if any.
2. On April 23, 2020, the securities were distributed pro rata to the partners of the Echinus Fund (the "Distribution").
3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.075 to $39.33, inclusive. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.
4. Mr. Uhde received 108,844 shares in the Distribution which he now holds directly.
Remarks:
Echinus may be deemed a director by deputization of the Issuer by virtue of the fact that Mr. Uhde currently serves on the board of directors of the Issuer.
Echinus Advisors, LLC: by /s/ Philip Yang, its Chief Financial Officer & Chief Compliance Officer 04/27/2020
/s/ Philip Uhde 04/27/2020
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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