Earl H. Nemser - 09 May 2025 Form 4/A - Amendment Insider Report for Interactive Brokers Group, Inc. (IBKR)

Role: Vice Chairman, Director
Signature: /s/ Raymond Bussiere as authorized signatory for Earl H. Nemser
Issuer symbol: IBKR
Transactions as of: 09 May 2025
Net transactions value: -$961,037
Form type: 4/A - Amendment
Filing time: 04 Jun 2025, 12:25:28 UTC
Date Of Original Report: 03 Jun 2025
Previous filing: 07 Jan 2025
Next filing: 24 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Nemser Earl H	Vice Chairman, Director	ONE PICKWICK PLAZA, GREENWICH	/s/ Raymond Bussiere as authorized signatory for Earl H. Nemser	04 Jun 2025	0001391400

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IBKR	Class A common stock	Tax liability	$961,037	-5,178	-4.6%	$185.60	107,078	09 May 2025	Direct	F1, F2
holding	IBKR	Class A common stock						100,000	09 May 2025	by EN Holdings LLC	F3

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

Explanation of Responses:

Id	Content
F1	The price represents the closing price of the issuer's Class A common stock as of May 9, 2025, the vesting date.
F2	This amount includes (a) Class A common stock attributable to vested restricted stock units that were awarded under the amended 2007 Stock Incentive Plan ("Plan") and (b) unvested restricted stock units that were awarded under the Plan.
F3	Represents number of securities owned by EN Holdings LLC, which is owned by the reporting person and his affiliates.

Remarks:

This amended Form 4 corrects an error in the original Form 4 filing where the Rule 10b5-1(c) Transaction Indication box was inadvertently checked, incorrectly representing that the transaction was executed pursuant to Rule 10b5-1(c) trading plan.