MARA Holdings: CEO Frederick G Thiel sold 90,606 shares

What happened Frederick G Thiel, CEO, disposed of a total of 90,606 shares. The filing reports 63,101 shares were withheld to cover tax liability at $11.33 per share for $714,934 on Sep 30, 2026, and 27,505 shares were sold in an open market transaction at $11.22 per share for $308,606 on Oct 1, 2026.

Key details

• Transaction dates and prices: Sep 30, 2026 at $11.33 (63,101 shares; withholding); Oct 1, 2026 at $11.22 (27,505 shares; sale).
• Total reported proceeds/disposition value: $1,023,540.
• Shares owned after the transaction: not reported in this filing.
• Footnotes: F1 indicates the 63,101 shares were withheld to cover tax liability in connection with the vesting of restricted stock units and were not an open market sale; F2 states the Oct 1, 2026 sale was effected pursuant to a Rule 10b5-1 trading plan adopted on Jun 9, 2026.
• Filing date: Oct 2, 2026; the filing does not indicate a late filing.

Why it may matter

• The 63,101-share transaction was a tax withholding related to RSU vesting, not an open market sale.
• The 27,505-share sale was executed under a Rule 10b5-1 trading plan.
  This filing does not show why the insider traded or why the company acted.