As of the latest Form 4 filed Jul 2, 2026.
What Marathon Digital Holdings Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 32 most recent filings for MARA.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-02 | 2026-07-01 | Khan Salman Hassan Chief Financial Officer | FTax | −61.5K | $13.89 | $854K | No | Form 4 ↗ |
| 2026-07-02 | 2026-07-01 | Nowaid Zabi General Counsel | FTax | −20.9K | $13.89 | $291K | No | Form 4 ↗ |
| 2026-07-02 | 2026-07-01 | Thiel Frederick G Chief Executive Officer | FTax | −63.1K | $13.89 | $876K | No | Form 4 ↗ |
| 2026-06-24 | 2026-06-22 | MELLINGER DOUGLAS K Director | SSale | −7.00K | $16.00 | $112K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Khan Salman Hassan Chief Financial Officer | SSale | −16.0K | $14.25 | $228K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Nowaid Zabi General Counsel | SSale | −7.00K | $14.25 | $99.8K | Yes (planned) | Form 4 ↗ |
| 2026-06-22 | 2026-06-17 | Thiel Frederick G Chief Executive Officer | SSale | −27.5K | $14.25 | $392K | Yes (planned) | Form 4 ↗ |
| 2026-05-20 | 2026-05-18 | Thiel Frederick G Chief Executive Officer | SSale | −27.5K | $12.00 | $330K | Yes (planned) | Form 4 ↗ |
| 2026-05-20 | 2026-05-18 | Thiel Frederick G, Chief Executive Officer | FTax | −27.3K | $11.46 | $313K | Yes (planned) | Form 4 ↗ |
| 2026-05-20 | 2026-05-18 | Khan Salman Hassan Chief Financial Officer | SSale | −16.0K | $12.00 | $192K | Yes (planned) | Form 4 ↗ |
| 2026-05-20 | 2026-05-18 | Nowaid Zabi General Counsel | SSale | −8.25K | $12.00 | $99.0K | Yes (planned) | Form 4 ↗ |
| 2026-05-20 | 2026-05-18 | Nowaid Zabi, General Counsel | FTax | −4.25K | $11.46 | $48.7K | Yes (planned) | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | Khan Salman Hassan Chief Financial Officer | FTax | −65.5K | $11.99 | $785K | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | Thiel Frederick G Chief Executive Officer | FTax | −80.9K | $11.99 | $970K | No | Form 4 ↗ |
| 2026-05-04 | 2026-04-30 | Nowaid Zabi General Counsel | FTax | −23.8K | $11.99 | $285K | No | Form 4 ↗ |
| 2026-04-21 | 2026-04-17 | Thiel Frederick G Chief Executive Officer | SSale | −27.5K | $11.68 | $321K | Yes (planned) | Form 4 ↗ |
| 2026-04-21 | 2026-04-17 | Khan Salman Hassan Chief Financial Officer | SSale | −16.0K | $11.68 | $187K | Yes (planned) | Form 4 ↗ |
| 2026-04-21 | 2026-04-17 | Nowaid Zabi General Counsel | SSale | −42.1K | $12.00 | $505K | Yes (planned) | Form 4 ↗ |
| 2026-03-19 | 2026-03-17 | Thiel Frederick G Chief Executive Officer | SSale | −27.5K | $9.18 | $252K | Yes (planned) | Form 4 ↗ |
| 2026-03-19 | 2026-03-17 | Khan Salman Hassan Chief Financial Officer | SSale | −16.0K | $9.18 | $147K | Yes (planned) | Form 4 ↗ |
| 2026-02-20 | 2026-02-20 | Thiel Frederick G Chief Executive Officer | AAward | +752K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-20 | Nowaid Zabi General Counsel | AAward | +198K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-20 | Khan Salman Hassan Chief Financial Officer | AAward | +495K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Mealer-Burke Vicki Director | AAward | +82.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Leupp Jay P Director | AAward | +82.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | Humpton Barbara Director | AAward | +82.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | ANTOUN GEORGES Director | AAward | +82.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | MELLINGER DOUGLAS K Director | AAward | +82.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-13 | 2026-02-13 | GEORGE JANET Director | AAward | +82.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Thiel Frederick G Chief Executive Officer | FTax | −67.7K | $9.12 | $617K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Khan Salman Hassan Chief Financial Officer | FTax | −31.0K | $9.12 | $283K | No | Form 4 ↗ |
| 2026-02-06 | 2026-02-05 | Nowaid Zabi General Counsel | FTax | −14.2K | $9.12 | $130K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also MARA’s full analysis or the market-wide insider trading feed. The tabs above jump to MARA’s other SEC data.
Source: SEC Form 4 filings for MARA, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.