Frederick G. Thiel, an officer and director of MARA Holdings, Inc., filed a Form 144 notice of proposed sale of 27,505 shares of common stock, with the filing dated November 2, 2026.

Key Highlights

  • Proposed sale: 27,505 shares of MARA Holdings common stock with an aggregate market value of $186,758.95, according to the filing.
  • Selling account: The securities are to be sold through The Thiel Living Trust, of which Frederick Thiel is a trustee and an account stakeholder, as stated in the filing's remarks.
  • Acquisition source: The 27,505 shares were acquired on May 1, 2024, via restricted stock vesting from the issuer, with compensation listed as the nature of payment.
  • Rule 10b5-1 plan: The filing indicates a trading plan adoption or instruction date of June 9, 2026.
  • Prior three months of sales: The Thiel Living Trust sold 27,505 shares on August 17, 2026, for gross proceeds of $253,321.05; 27,505 shares on September 17, 2026, for $314,932.25; and 27,505 shares on October 1, 2026, for $308,606.10.
  • Shares outstanding: The filing lists 386,299,297 shares of common stock outstanding.
  • Broker: Fidelity Brokerage Services LLC, 900 Salem Street, Smithfield, RI 02917, is named as the broker for the proposed sale.

MARA Holdings Officer and Director Proposes Sale via Living Trust Under 10b5-1 Plan

According to the Form 144 filing submitted on November 2, 2026, Frederick G. Thiel, identified in the filing as both an officer and a director of MARA Holdings, Inc. (NASDAQ:MARA), is proposing to sell 27,505 shares of the company's common stock with an approximate sale date of November 2, 2026. The aggregate market value of the proposed sale is reported as $186,758.95. The filing notes that the sale is to occur within The Thiel Living Trust, of which Thiel is described as a trustee and an account stakeholder.

The filing discloses that the shares subject to the proposed sale were acquired on May 1, 2024, through restricted stock vesting from the issuer, with the nature of payment listed as compensation. Thiel relied on a Rule 10b5-1 trading plan or instruction, with the adoption or instruction date recorded as June 9, 2026. The filing was signed by Daniel Tucci as a duly authorized representative of Fidelity Brokerage Services LLC, acting as attorney-in-fact for Frederick Thiel.

The filing also discloses sales by The Thiel Living Trust during the prior three months: 27,505 shares sold on August 17, 2026, generating gross proceeds of $253,321.05; 27,505 shares sold on September 17, 2026, generating $314,932.25; and 27,505 shares sold on October 1, 2026, generating $308,606.10. The issuer's address is listed as 1010 South Federal Highway, Suite 2700, Hallandale Beach, Florida 33009.

What Was Disclosed

Frederick G. Thiel, an officer and director of MARA Holdings, Inc., filed a Form 144 on November 2, 2026, proposing to sell 27,505 shares of common stock valued at $186,758.95 through The Thiel Living Trust, under a Rule 10b5-1 plan adopted June 9, 2026.