Mara

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-18 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: MARA Holdings, Inc. (MARA) CIK: 0001507605 --- Reporting Owner --- Name: Thiel Frederick G CIK: 0001567383 Role: Director, Officer (Chief Executive Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-18 | Code: F (Payment of exercise/tax) Shares: -27,316 | Price: $11.46 Total Value: $313,041.36 Shares Owned After: 4,617,019 | Ownership: D (Direct) Footnotes: [F1] Reflects shares of the issuer's common stock withheld to cover the reporting person's tax liability in connection with the vesting of restricted stock units. This transaction was not an open market sale by the reporting person. [Transaction #2] Security: Common Stock Date: 2026-05-18 | Code: S (Open market sale) Shares: -27,505 | Price: $12.00 Total Value: $330,060.00 Shares Owned After: 4,589,514 | Ownership: D (Direct) Footnotes: [F2] The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 28, 2025. --- Footnotes (Complete Index) --- F1: Reflects shares of the issuer's common stock withheld to cover the reporting person's tax liability in connection with the vesting of restricted stock units. This transaction was not an open market sale by the reporting person. F2: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 28, 2025. --- Signature --- /s/ /s/ Zabi Nowaid, Attorney-in-Fact for Fred Thiel (2026-05-20)