William Peterffy - 01 Jan 2026 Form 4 Insider Report for Interactive Brokers Group, Inc. (IBKR)

Role: Director
Signature: /s/ William Peterffy
Issuer symbol: IBKR
Transactions as of: 01 Jan 2026
Net transactions value: +$25,017
Form type: 4
Filing time: 26 Jan 2026, 16:59:29 UTC
Previous filing: 07 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Peterffy William	Director	ONE PICKWICK PLAZA, GREENWICH	/s/ William Peterffy	26 Jan 2026	0001812281

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IBKR	Class A common stock	Award	$25,017	+389	+4%	$64.31	10,126	01 Jan 2026	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	The price represents the closing price of the Issuer's Class A common stock on December 31, 2025.

Content

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.