Vanguard Group Inc - Aug 29, 2025 SCHEDULE 13G/A Report for Interactive Brokers Group Inc Common Stock (IBKR)

Filing Manager: Vanguard Group Inc
Reporting Manager: The Vanguard Group
Security: Interactive Brokers Group Inc Common Stock
Symbol: IBKR
Shares outstanding: 445M shares
Disclosed Ownership: 50.8M shares
Ownership: 11.4%
Form type: SCHEDULE 13G/A
Date filed: 9/8/2025, 11:06 AM
Date of event: Aug 29, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
The Vanguard Group	11.4%	50.8M	0	2.42M	Ashley Grim	Head of Global Fund Administration