IBKR director sells 10,645 shares at $69; now holds 198,704

Interactive Brokers Group (IBKR) director Lawrence E. Harris reported a sale of Class A shares.

Rhea-AI Filing Summary

Interactive Brokers Group (IBKR) director Lawrence E. Harris reported a sale of Class A shares. On 10/29/2025, he sold 10,645 shares at a weighted average price of $69, with individual trades executed between $68.71 and $69.20. Following the transaction, he beneficially owns 198,704 shares, held directly.

The filing notes that detailed trade-by-trade pricing within the disclosed range is available upon request.

Insider Trade Summary

Net Seller: 10,645 shares

Net Sell 1 txn

Insider Harris Lawrence E

Role Director

Sold 10,645 shs ($735K)

Type	Security	Shares	Price	Value
Sale	Class A common stock	10,645	$69.00	$735K

Holdings After Transaction: Class A common stock — 198,704 shares (Direct)

Footnotes (1)

1. F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.71 to $69.20. 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 this footnote (1).

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did IBKR’s director report on Form 4?

He sold 10,645 Class A shares on 10/29/2025 at a weighted average price of $69.

What is the reported price range for the IBKR share sales?

Individual trades occurred between $68.71 and $69.20.

How many IBKR shares does the reporting person own after the sale?

He beneficially owns 198,704 shares, held directly.

What class of IBKR securities was involved?

Class A common stock.

Who is the reporting person in this IBKR Form 4?

Lawrence E. Harris, a Director of Interactive Brokers Group, Inc.

Is detailed trade pricing available?

Yes. The filing states full pricing details within the $68.71–$69.20 range are available upon request.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 10/31/2025 - 04:47 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Harris Lawrence E

(Last) (First) (Middle)

ONE PICKWICK PLAZA

(Street)

GREENWICH CT 06830

(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)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
10/29/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

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. 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	10/29/2025		S		10,645	D	$69(1)	198,704	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

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.71 to $69.20. 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 this footnote (1).

	/s/ Raymond Bussiere as authorized signatory for Lawrence E. Harris	10/31/2025
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.