Reporting Manager
G1 Execution Services, LLC
Symbol
MARA
Shares outstanding
384M shares
Disclosed Ownership
18.8M shares
Ownership
4.9%
Form type
SCHEDULE 13G/A
Date filed
11/13/2025, 05:44 PM
Date of event
Sep 30, 2025
Previous filing
Aug 14, 2025

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
G1 Execution Services, LLC 4.9% 18.8M 30.4K 18.8M /s/ Brian Sopinsky Brian Sopinsky, Secretary
SIG Brokerage, LP 4.9% 18.8M 193K 18.8M /s/ Brian Sopinsky Brian Sopinsky, Assistant Secretary
Susquehanna Investment Group 4.9% 18.8M 1.36M 18.8M /s/ Brian Sopinsky Brian Sopinsky, General Counsel
Susquehanna Securities, LLC 4.9% 18.8M 17.2M 18.8M /s/ Brian Sopinsky Brian Sopinsky, Secretary