[Form 4] Interactive Brokers Group, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Interactive Brokers Group, Inc. director and CFO Paul Jonathan Brody received an additional equity award of 389 shares of Class A common stock. The award reflects a change in the company’s board compensation policy, under which annual stock awards to all directors under the 2007 Stock Incentive Plan increased from $25,000 to $50,000. These additional restricted stock units vested on January 1, 2026, and are reported at a reference price of $64.31 per share, the closing price on December 31, 2025. Following this grant, Brody beneficially owns 2,939,726 shares of Class A common stock in total.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Brody Paul Jonathan

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Class A common stock	389	$64.31	$25K

Holdings After Transaction: Class A common stock — 2,939,726 shares (Direct)

Footnotes (1)

1. On January 22, 2026, Interactive Brokers Group, Inc.'s ("Issuer") Board of Directors ("Board") modified the compensation policy for members of the Board. The annual awards granted to all directors on December 31 of each year, under the 2007 Stock Incentive Plan as amended ("Plan"), increased from $25,000 to $50,000. This represents additional restricted stock units granted to the Reporting Person, under the Plan, which vested on January 1, 2026. The price represents the closing price of the Issuer's Class A common stock on December 31, 2025. This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan and (b) unvested restricted stock units that were awarded under the Plan.

Form 4 Insider Transactions: What Each Field Means →

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^*

Brody Paul Jonathan

(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
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
01/01/2026

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	01/01/2026	01/22/2026	A		389(1)	A	$64.31(2)	2,939,726(3)	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. On January 22, 2026, Interactive Brokers Group, Inc.'s ("Issuer") Board of Directors ("Board") modified the compensation policy for members of the Board. The annual awards granted to all directors on December 31 of each year, under the 2007 Stock Incentive Plan as amended ("Plan"), increased from $25,000 to $50,000. This represents additional restricted stock units granted to the Reporting Person, under the Plan, which vested on January 1, 2026.

2. The price represents the closing price of the Issuer's Class A common stock on December 31, 2025.

3. This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the Plan and (b) unvested restricted stock units that were awarded under the Plan.

	/s/ Raymond Bussiere as authorized signatory for Paul J Brody	01/26/2026
	** 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.

FAQ

What insider transaction did IBKR report for CFO Paul Jonathan Brody?

Interactive Brokers Group, Inc. reported that director and CFO Paul Jonathan Brody received 389 shares of Class A common stock as an additional equity award that vested on January 1, 2026.

How many IBKR shares does the CFO hold after this Form 4 transaction?

After the reported award, CFO and director Paul Jonathan Brody beneficially owns 2,939,726 shares of Interactive Brokers Group, Inc. Class A common stock.

What change in board compensation led to the new IBKR share grant?

On January 22, 2026, the Board of Interactive Brokers Group, Inc. modified its compensation policy so that annual awards to all directors under the 2007 Stock Incentive Plan increased from $25,000 to $50,000.

At what price is the IBKR insider award reported on this Form 4?

The 389-share award is reported at a reference price of $64.31 per share, which is the closing price of Interactive Brokers Group, Inc. Class A common stock on December 31, 2025.

Is the IBKR CFO’s Form 4 transaction a market purchase or a stock award?

The Form 4 reflects an additional restricted stock unit award to the CFO under the company’s 2007 Stock Incentive Plan, not an open-market purchase or sale.

Which roles does the reporting person hold at Interactive Brokers Group, Inc.?

The reporting person, Paul Jonathan Brody, is both a director and the Chief Financial Officer of Interactive Brokers Group, Inc.