Marathon Digital Holdings, Inc. (MARA) Insider Trading
Over the last 3 months, MARA insiders made 0 open-market buys and 10 sales, a net sale of -$1.9M (SEC Form 4). Over the last 6 months, 306 institutions increased and 250 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
10
Net (3m)
-$1.9M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price -25.2%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 21, 2026 | Nowaid Zabiofficer: General Counsel | Sell | 8,376 | $12.00 |
| Aug 19, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $9.21 |
| Aug 19, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Sell | 27,505 | $9.21 |
| Aug 4, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Tax | 30,215 | $11.32 |
| Aug 4, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 4,139 | $11.75 |
| Aug 4, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 9,745 | $11.32 |
| Aug 4, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 27,316 | $11.75 |
| Aug 4, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 40,388 | $11.32 |
| Aug 3, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Tax | 33,569 | $11.82 |
| Aug 3, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 13,428 | $11.82 |
| Aug 3, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 40,497 | $11.82 |
| Jul 20, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $10.90 |
| Jul 20, 2026 | Nowaid Zabiofficer: General Counsel | Sell | 8,376 | $12.00 |
| Jul 20, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Sell | 27,505 | $10.90 |
| Jul 2, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 63,101 | $13.89 |
| Jul 2, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Tax | 61,515 | $13.89 |
| Jul 2, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 20,924 | $13.89 |
| Jun 24, 2026 | MELLINGER DOUGLAS Kdirector | Sell | 7,000 | $16.00 |
| Jun 22, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Sell | 27,505 | $14.25 |
| Jun 22, 2026 | Nowaid Zabiofficer: General Counsel | Sell | 7,000 | $14.25 |
| Jun 22, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $14.25 |
| May 20, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Sell | 27,505 | $12.00 |
| May 20, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 27,316 | $11.46 |
| May 20, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $12.00 |
| May 20, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 4,248 | $11.46 |
| May 20, 2026 | Nowaid Zabiofficer: General Counsel | Sell | 8,250 | $12.00 |
| May 4, 2026 | Nowaid Zabiofficer: General Counsel | Tax | 23,781 | $11.99 |
| May 4, 2026 | Thiel Frederick Gdirector, officer: Chief Executive Officer | Tax | 80,884 | $11.99 |
| May 4, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Tax | 65,456 | $11.99 |
| Apr 21, 2026 | Khan Salman Hassanofficer: Chief Financial Officer | Sell | 16,000 | $11.68 |
Source: MARA SEC Form 4 filings, latest Aug 21, 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
306
New positions
169
Reduced
250
Sold out
62
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 64.1M | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 59.8M | May 13, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 29.7M | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 29.3M | Aug 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 27.4M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 26.4M | May 8, 2026 |
| JANE STREET GROUP, LLC | Increased | 19.1M | May 12, 2026 |
| CITADEL ADVISORS LLC | Increased | 18.5M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 16.5M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 16.4M | May 15, 2026 |
| D. E. Shaw & Co., Inc. | Increased | 15.9M | Aug 14, 2026 |
| STATE STREET CORP | Increased | 15.9M | Aug 7, 2026 |
| JANE STREET GROUP, LLC | Reduced | 15.4M | Aug 14, 2026 |
| STATE STREET CORP | Increased | 15.2M | May 15, 2026 |
| TOROSO INVESTMENTS, LLC | Increased | 13.6M | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.