Darrell B. Lee, age 71, was elected to TeraWulf's board in 2012 and serves as Chairman of the Audit Committee. A Certified Public Accountant, he has been designated an "audit committee financial expert" by the Board under SEC regulations.
Mr. Lee served as Vice President, Chief Financial Officer, Treasurer and Secretary of MOCON, Inc., a publicly held manufacturer of precision test and measurement instruments in Minneapolis, Minnesota, until his retirement in October 2014. He held this position for more than five years, gaining experience in public company financial management and governance.
Mr. Lee holds an M.B.A. and B.S. from Mankato State University and a Master's degree in Business Taxation from the University of Minnesota.
Biography extracted from TeraWulf DEF 14A filed 2020-03-24 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 |
|---|---|---|---|
| TeraWulf | Director | 2012-04 → present (14y 7mo) | 10 |
Show 10 underlying filings | |||
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 | 11,211 | $79.6K | 11,211 | $33.8K | ↑ Invested $45.8K | 10 | $131.5K | $131.5K |
| 2021 | 1,000 | $0 | 11,211 | $33.8K | ↓ Divested $33.8K | 3 | $11.7K | $131.5K |
| 2020 | 2,500 | $12.9K | - | $0 | ↑ Invested $12.9K | 1 | $29.3K | $0 |
| 2019 | 2,000 | $12.9K | - | $0 | ↑ Invested $12.9K | 1 | $23.5K | $0 |
| 2019-Q3 | 2,000 | $12.9K | - | $0 | ↑ Invested $12.9K | 1 | $23.5K | $0 |
| 2020-Q1 | 2,500 | $12.9K | - | $0 | ↑ Invested $12.9K | 1 | $29.3K | $0 |
| 2021-Q2 | 1,000 | $0 | - | $0 | Flat | 1 | $11.7K | $0 |
| 2021-Q4 | - | $0 | 11,211 | $33.8K | ↓ Divested $33.8K | 2 | $0 | $131.5K |
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 |
|---|---|---|---|---|---|
| 2021-12-13 | TeraWulf | Sale to issuer (buyback) | 1,000 | $33,820 | $11.7K |
| 2021-12-13 | TeraWulf | Sale to issuer (buyback) | 10,211 | - | $119.8K |
| 2021-04-29 | TeraWulf | Grant / award / vesting | 1,000 | - | $11.7K |
| 2020-03-02 | TeraWulf | Open-market purchase | 2,500 | $12,925 | $29.3K |
| 2019-08-26 | TeraWulf | Open-market purchase | 2,000 | $12,939 | $23.5K |
| 2017-05-17 | TeraWulf | Open-market purchase | 1,680 | $15,120 | $19.7K |
| 2017-05-10 | TeraWulf | Open-market purchase | 320 | $2,752 | $3.8K |
| 2015-08-17 | TeraWulf | Open-market purchase | 2,000 | $22,520 | $23.5K |
| 2012-11-23 | TeraWulf | Open-market purchase | 1,500 | $11,700 | $17.6K |
| 2012-11-19 | TeraWulf | Open-market purchase | 211 | $1,646 | $2.5K |