Mark Groussman served as Chief Executive Officer of Marathon Digital Holdings for approximately five months, from June 11, 2012 to November 14, 2012. During his tenure, he also served as President of Melechdavid Inc. Groussman received total compensation of $44,384 in 2012 and was granted stock options to purchase 115,385 shares at $6.50 per share with a ten-year term, which were cancelled upon his resignation.
In November 2012, Groussman was notified that he had violated Section 16(b) of the Securities Exchange Act through short-swing trades in Marathon Digital stock. He subsequently paid $50,000 in disgorgement in December 2012.
Biography extracted from Marathon Digital DEF 14A filed 2014-08-18 View cached copy (2026-09-27)Live source ↗
Roles
Contiguous filings for the same role are collapsed into a single tenure span. Click a row to see the underlying filings.
| Company | Role | Tenure | Filings |
|---|---|---|---|
| Marathon Digital | Chief Executive Officer | 2012-06 → present (14y 5mo) | 1 |
| Marathon Digital | Former Chief Executive Officer | 2012-08 → present (14y 3mo) | 1 |
Insider transactions
Totals for this person
| Bucket | Invested (shares) | Invested (USD) | Divested (shares) | Divested (USD) | Net direction | Txns | Invested @ last price | Divested @ last price |
|---|---|---|---|---|---|---|---|---|
| All time | 4,302,970 | $150.0K | 1,375,000 | $275.0K | ↓ Divested $125.0K | 8 | $29.13M | $9.31M |
| 2012 | 4,302,970 | $150.0K | 1,375,000 | $275.0K | ↓ Divested $125.0K | 8 | $29.13M | $9.31M |
| 2012-Q3 | 1,802,970 | $0 | - | $0 | Flat | 2 | $12.21M | $0 |
| 2012-Q4 | 2,500,000 | $150.0K | 1,375,000 | $275.0K | ↓ Divested $125.0K | 6 | $16.93M | $9.31M |
Invested = shares acquired (buys, grants, option exercises) — insider adding to the position. Divested = shares reduced (sells, dispositions, tax-withholding) — cash flowing TO the insider. Net direction shows which side wins on dollar terms in each bucket. % of holder's stake not yet computed (pending Form 3/4 holdings ingest). See methodology. The two @ last price columns restate the same share counts at the most recent share price we read (close of 2026-10-30); they are a valuation, not a cash flow, and they move every day the market does.
All transactions
| Date | Company | Kind | Shares | Amount (USD) | Value @ last price |
|---|---|---|---|---|---|
| 2012-11-14 | Marathon Digital | Other acquisition / disposition · Options | 1,500,000 | - | $10.15M |
| 2012-11-13 | Marathon Digital | Open-market purchase | 1,000,000 | $150,000 | $6.77M |
| 2012-11-09 | Marathon Digital | Open-market sale | 250,000 | $50,000 | $1.69M |
| 2012-11-08 | Marathon Digital | Open-market sale | 275,000 | $55,000 | $1.86M |
| 2012-11-06 | Marathon Digital | Open-market sale | 750,000 | $150,000 | $5.08M |
| 2012-11-06 | Marathon Digital | Open-market sale | 100,000 | $20,000 | $677.0K |
| 2012-09-14 | Marathon Digital | In/at-money option exercise | 302,970 | - | $2.05M |
| 2012-08-03 | Marathon Digital | Other acquisition / disposition · Options | 1,500,000 | - | $10.15M |