Erich Spangenberg served as Director of Acquisitions, Licensing and Strategy at Marathon Digital from May 2016 until his employment was terminated on August 3, 2017. He received annual compensation of $150,000 salary and $200,000 bonus in 2016, declining to $142,728 salary and $200,000 bonus in 2017 (his partial final year). Under his executive employment agreement, he was granted 500,000 ten-year stock options at a strike price of $1.87 per share, vesting monthly over 24 months.
Biography extracted from Marathon Digital DEF 14A filed 2018-11-05 View cached copy (2026-09-13)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 | 10%+ Owner | 2013-04 → present (13y 7mo) | 4 |
Show 4 underlying filings | |||
Compensation
| Year | Role as filed | Salary | Bonus | Option awards | Other | Total | Source |
|---|---|---|---|---|---|---|---|
| 2017 | — | $142.7K | $200.0K | — | $21.6K | $364.3K | View cached copy (2026-09-13)Live source ↗ |
| 2016 | — | $150.0K | $200.0K | $357.3K | — | $707.3K | View cached copy (2026-09-13)Live source ↗ |
As reported in the company's DEF 14A Summary Compensation Table (SEC Reg S-K Item 402(c)). Stock and option awards are grant-date fair values — what the award was worth on the day it was granted, not cash received and not what it is worth now. Every row here reconciles: its columns add up to the total the filing printed.
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 | 1,087,500 | $250.0K | - | $0 | ↑ Invested $250.0K | 3 | $7.36M | $0 |
| 2013 | 1,087,500 | $250.0K | - | $0 | ↑ Invested $250.0K | 3 | $7.36M | $0 |
| 2013-Q2 | 937,500 | $250.0K | - | $0 | ↑ Invested $250.0K | 2 | $6.35M | $0 |
| 2013-Q4 | 150,000 | $0 | - | $0 | Flat | 1 | $1.02M | $0 |
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 |
|---|---|---|---|---|---|
| 2013-10-17 | Marathon Digital | Open-market purchase · Common Stock, $0.0001 par value per share | 150,000 | - | $1.02M |
| 2013-05-31 | Marathon Digital | Open-market purchase · Common Stock, $0.0001 par value per share | 625,000 | $250,000 | $4.23M |
| 2013-05-31 | Marathon Digital | Open-market purchase · Warrant to Purchase Common Stock | 312,500 | - | $2.12M |