Company profile
Terawulf Inc. Insider Trading
WULFEvery SEC Form 4 insider trading filing for Terawulf Inc. (WULF) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Finance Services
- CIK
- 0001083301
- Filings
- 271
- Insiders
- 15
- Last filing
- 2026-09-15
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $2.9M across 2 transactions, with 1 offsetting purchase.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Terawulf Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $16.5M.
90 day insight
Over the last 90 days, Terawulf Inc. insiders bought $190K (14 transactions) and sold $3.0M (3 transactions).
- Most active insider: Michael C. Bucella with 4 transactions totaling $190K.
- Largest single sale: $3.7M by Paul B. Prager on Jun 29, 2026.
- 40% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | Michael C. Bucella | WULF | Purchase | 6,085 | $14.79 | $90K |
| Sep 10, 2026 | Nazar M. Khan | WULF | J | 350,000 | — | — |
| Sep 10, 2026 | Nazar M. Khan | WULF | J | 350,000 | — | — |
| Sep 8, 2026 | Catherine J. Motz | WULF | Sale | 56,023 | $17.81 | $998K |
| Aug 31, 2026 | Walter E. Carter | WULF | Sale | 130,626 | $15.14 | $1.98M |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=WULF" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Terawulf Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →