🕵️ MARA Holdings, Inc. ($MARA)
SEC insider & ownership activity, last 12 months · CIK 1507605 · every row links its SEC filing
Over the last 12 months insiders sold $10.1M with no open-market buying against it. Frederick G. Thiel sold $4.6M through a program of 13 sale notices averaging $355K (Aug–Jul). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 5 sellers, $10.1M (37 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Frederick G. Thiel | 0 | – | 13 | $4.6M | Jul 17, 2026 |
| Khan Salman Hassan | 0 | – | 11 | $3.8M | Jul 17, 2026 |
| Nowaid Zabi | 0 | – | 7 | $1.3M | Jul 20, 2026 |
| Mealer-Burke Vicki | 0 | – | 1 | $227K | Sep 8, 2025 |
| Douglas K. Mellinger | 0 | – | 5 | $182K | Jun 22, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Portfolio Management | 7.0% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.0% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Nowaid Zabi | $100K | Jul 20, 2026 | filing ↗ |
| Khan Salman Hassan | $174K | Jul 17, 2026 | filing ↗ |
| Frederick G. Thiel | $300K | Jul 17, 2026 | filing ↗ |
| Douglas K. Mellinger | $112K | Jun 22, 2026 | filing ↗ |
| Frederick G. Thiel | $392K | Jun 17, 2026 | filing ↗ |
| Khan Salman Hassan | $228K | Jun 17, 2026 | filing ↗ |
| Nowaid Zabi | $99K | Jun 17, 2026 | filing ↗ |
| Khan Salman Hassan | $192K | May 18, 2026 | filing ↗ |
| Frederick G. Thiel | $330K | May 18, 2026 | filing ↗ |
| Nowaid Zabi | $98K | May 18, 2026 | filing ↗ |
| Khan Salman Hassan | $187K | Apr 17, 2026 | filing ↗ |
| Frederick G. Thiel | $321K | Apr 17, 2026 | filing ↗ |
| Nowaid Zabi | $500K | Apr 17, 2026 | filing ↗ |
| Frederick G. Thiel | $252K | Mar 17, 2026 | filing ↗ |
| Khan Salman Hassan | $147K | Mar 17, 2026 | filing ↗ |
| Frederick G. Thiel | $211K | Feb 17, 2026 | filing ↗ |
| Khan Salman Hassan | $123K | Feb 17, 2026 | filing ↗ |
| Frederick G. Thiel | $297K | Jan 20, 2026 | filing ↗ |
| Frederick G. Thiel | $296K | Dec 17, 2025 | filing ↗ |
| Khan Salman Hassan | $399K | Dec 15, 2025 | filing ↗ |
| Khan Salman Hassan | $416K | Nov 17, 2025 | filing ↗ |
| Frederick G. Thiel | $330K | Nov 17, 2025 | filing ↗ |
| Douglas K. Mellinger | $17K | Nov 10, 2025 | filing ↗ |
| Nowaid Zabi | $397K | Nov 10, 2025 | filing ↗ |
| Nowaid Zabi | $81K | Nov 6, 2025 | filing ↗ |
| Frederick G. Thiel | $538K | Oct 17, 2025 | filing ↗ |
| Khan Salman Hassan | $790K | Oct 15, 2025 | filing ↗ |
| Douglas K. Mellinger | $21K | Oct 7, 2025 | filing ↗ |
| Frederick G. Thiel | $478K | Sep 17, 2025 | filing ↗ |
| Frederick G. Thiel | $450K | Sep 16, 2025 | filing ↗ |
| Khan Salman Hassan | $564K | Sep 15, 2025 | filing ↗ |
| Douglas K. Mellinger | $16K | Sep 10, 2025 | filing ↗ |
| Mealer-Burke Vicki | $227K | Sep 8, 2025 | filing ↗ |
| Frederick G. Thiel | $420K | Aug 18, 2025 | filing ↗ |
| Khan Salman Hassan | $546K | Aug 15, 2025 | filing ↗ |
| Douglas K. Mellinger | $16K | Aug 7, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Jul 2, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Jul 2, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 2, 2026 | filing ↗ |
| Other events (8.01) | Jun 25, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 25, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 18, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 18, 2026 | filing ↗ |
| Earnings (2.02) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 29, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 29, 2026 | filing ↗ |
| Other events (8.01) | Mar 25, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Material agreement (1.01) | Feb 26, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 20, 2026 | filing ↗ |
| Earnings (2.02) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |
| Material agreement (1.01) | Aug 11, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Aug 11, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 11, 2025 | filing ↗ |