Marathon Digital Holdings, Inc. (MARA) Insider Trading
Over the last 3 months, MARA insiders made 0 open-market buys and 8 sales, a net sale of -$2.0M (SEC Form 4). Over the last 6 months, 327 institutions increased and 252 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
8
Net (3m)
-$2.0M
Insider trades by month Buys Sells
Dec
Jan
Feb
Mar
Apr
May
Context3-month price +50.3%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 20, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Sell | 27,505 | $12.00 |
| May 20, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 4,248 | $11.46 |
| May 20, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $12.00 |
| May 20, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 27,316 | $11.46 |
| May 20, 2026 | Nowaid Zabiofficer: General Counsel | Sell | 8,250 | $12.00 |
| May 4, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Tax | 65,456 | $11.99 |
| May 4, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 80,884 | $11.99 |
| May 4, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 23,781 | $11.99 |
| Apr 21, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Sell | 27,505 | $11.68 |
| Apr 21, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $11.68 |
| Apr 21, 2026 | Nowaid Zabiofficer: General Counsel | Sell | 42,090 | $12.00 |
| Apr 3, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Tax | 30,820 | $8.16 |
| Apr 3, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 12,328 | $8.16 |
| Apr 3, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 36,230 | $8.16 |
| Apr 3, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Tax | 9,452 | $8.04 |
| Mar 19, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $9.18 |
| Mar 19, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Sell | 27,505 | $9.18 |
| Feb 24, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 31,087 | $7.50 |
| Feb 24, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Tax | 77,713 | $7.50 |
| Feb 24, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 91,356 | $7.50 |
| Feb 20, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Grant | 494,798 | — |
| Feb 20, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Grant | 752,093 | — |
| Feb 20, 2026 | Nowaid Zabiofficer: General Counsel | Grant | 197,919 | — |
| Feb 19, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $7.66 |
| Feb 19, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Grant | 773,861 | — |
| Feb 19, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Sell | 27,505 | $7.66 |
| Feb 19, 2026 | Nowaid Zabiofficer: General Counsel | Grant | 203,648 | — |
| Feb 19, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Grant | 509,119 | — |
| Feb 13, 2026 | Mealer-Burke Vickidirector | Grant | 82,759 | — |
| Feb 13, 2026 | GEORGE JANETdirector | Grant | 82,759 | — |
Source: MARA SEC Form 4 filings, latest May 20, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their MARA positions over the last 6 months (SEC Form 13F).
Increased
327
New positions
153
Reduced
252
Sold out
163
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 59.8M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 58.6M | Feb 12, 2026 |
| VANGUARD GROUP INC | Increased | 46.7M | Jan 29, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 26.4M | May 8, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 16.4M | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 15.6M | Feb 17, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 15.2M | May 15, 2026 |
| STATE STREET CORP | Increased | 15.2M | May 15, 2026 |
| STATE STREET CORP | Increased | 14.8M | Feb 13, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | Increased | 12.6M | Feb 2, 2026 |
| TOROSO INVESTMENTS, LLC | Increased | 11.7M | May 15, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | Reduced | 11.3M | May 4, 2026 |
| JANE STREET GROUP, LLC | Increased | 10.9M | May 12, 2026 |
| LMR PARTNERS LLP | Increased | 10.8M | Feb 17, 2026 |
| CITADEL ADVISORS LLC | Increased | 10.7M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.