MARA CEO Frederick Thiel Withholds Shares to Cover Taxes

What Happened
Frederick G. Thiel, CEO of MARA Holdings (MARA), had shares withheld to cover tax liabilities tied to the vesting of restricted stock units. On 2026-07-31 he surrendered 40,388 shares at $11.32 per share (≈ $457,192) and on 2026-08-03 he surrendered 27,316 shares at $11.75 per share (≈ $320,963), for a total of 67,704 shares and roughly $778,155. These were tax-withholding transactions (code F), not open-market sales.

Key Details

• Transaction dates and prices: 2026-07-31 — 40,388 shares @ $11.32; 2026-08-03 — 27,316 shares @ $11.75.
• Total value surrendered: ≈ $778,155.
• Shares owned after transaction: Not disclosed in the provided filing.
• Footnote: F1 — shares were withheld to cover the reporting person's tax liability in connection with RSU vesting; not an open market sale.
• Filing timeliness: Form filed 2026-08-04; filings for the 7/31 and 8/3 transactions appear timely (within the SEC’s two-business-day Form 4 window).

Context
Tax-withholding via share surrender on RSU vesting is a routine administrative action and does not represent a discretionary open‑market sale or purchase by the insider. Such transactions are common following equity awards and should not be read alone as a signal of the insider's view on the company.