Interactive Brokers Group, Inc. — Director's Dealing 2026

Jan 7, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Interactive Brokers Group, Inc. (IBKR)
CIK: 0001381197
Period of Report: 2025-12-31

Reporting Person: Conkling Lori A (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-12-31	Class A common stock	A	1167	—	Acquired	1167	Direct
2025-12-31	Class A common stock	A	389	$64.31	Acquired	1556	Direct

Footnotes

F1: This represents a grant of restricted stock units under the 2007 Stock Incentive Plan as amended ("Plan") that will vest in five equal installments, beginning December 31, 2026.

F2: This amount includes unvested restricted stock units that were awarded under the Plan.

F3: This represents an annual grant of restricted stock units under the Plan for being a member of the issuer's Board of Directors, which vested immediately on 12/31/2025.

F4: The price represents the closing price of the issuer's Class A common stock on December 31, 2025.

F5: 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.