← United States · Coverage record
US · SEC FORM 4
TERAWULF INC.
WULF · Nasdaq · CIK 0001083301 · Financial Services · Capital Markets
INSIDER SIGNAL
3 qualifying P purchase groups
in the current 180-day scoring window
56 Form 4 transaction lines observed in the same window
12 sales · 41 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 5 additional owner(s) remain in Form 4 evidence.
Purchase breadth & concentration
Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-09-15 · Bucella Michael C..
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 119,364,725
- Previous report
- 121,146,308
- Avg daily volume
- 26,511,085
- Days to cover
- 4.5
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 6,085 | USD 14.79 | USD 89,997 | SEC filing ↗ |
| 2026-08-17 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 2,860 | USD 17.47 | USD 49,964 | SEC filing ↗ |
| 2026-08-14 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 3,023 | USD 16.54 | USD 50,000 | SEC filing ↗ |
| 2026-03-20 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 1,665 | USD 15.04 | USD 25,042 | SEC filing ↗ |
| 2026-03-19 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 1,670 | USD 14.96 | USD 24,983 | SEC filing ↗ |
| 2026-03-18 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 1,581 | USD 15.79 | USD 24,964 | SEC filing ↗ |
| 2026-03-17 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 1,584 | USD 16.00 | USD 25,344 | SEC filing ↗ |
| 2026-03-11 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 1,338 | USD 14.91 | USD 19,950 | SEC filing ↗ |
| 2026-03-09 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 752 | USD 13.31 | USD 10,009 | SEC filing ↗ |
| 2026-03-06 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 679 | USD 14.80 | USD 10,049 | SEC filing ↗ |
| 2026-03-05 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 654 | USD 15.31 | USD 10,013 | SEC filing ↗ |
| 2026-03-04 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 3,171 | USD 15.78 | USD 50,038 | SEC filing ↗ |
| 2025-11-13 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 4,178 | USD 12.01 | USD 50,178 | SEC filing ↗ |
| 2025-01-27 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 4,796 | USD 4.17 | USD 19,999 | SEC filing ↗ |
| 2023-08-18 | Prager Paul B. | Purchase (P) | Common stock, $0.001 par value per share | 50,000 | USD 1.90 | USD 95,000 | SEC filing ↗ |
Form 4 evidence
93 transaction lines in the latest 365-day window; 469 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | Prager Lisa A. | Award / grant (A) | Common stock, $0.001 par value per share | 1,690 | USD — | USD — | SEC filing ↗ |
| 2026-09-30 | Carter Walter E. | Award / grant (A) | Common stock, $0.001 par value per share | 2,112 | USD — | USD — | SEC filing ↗ |
| 2026-09-30 | Bucella Michael C. | Award / grant (A) | Common stock, $0.001 par value per share | 1,690 | USD — | USD — | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | Prager Lisa A. | Award / grant (A) | Common stock, $0.001 par value per share | 1,690 | USD — | USD — | SEC filing ↗ |
| 2026-09-30 | Carter Walter E. | Award / grant (A) | Common stock, $0.001 par value per share | 2,112 | USD — | USD — | SEC filing ↗ |
| 2026-09-30 | Bucella Michael C. | Award / grant (A) | Common stock, $0.001 par value per share | 1,690 | USD — | USD — | SEC filing ↗ |
| 2026-09-29 | Khan Nazar M. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 666,667 | USD — | USD — | SEC filing ↗ |
| 2026-09-15 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 6,085 | USD 14.79 | USD 89,997 | SEC filing ↗ |
| 2026-09-08 | Motz Catherine J. | Sale (S) | Common stock, $0.001 par value per share | 56,023 | USD 17.81 | USD 997,770 | SEC filing ↗ |
| 2026-08-31 | Carter Walter E. | Sale (S) | Common stock, $0.001 par value per share | 130,626 | USD 15.14 | USD 1,977,678 | SEC filing ↗ |
| 2026-08-27 | Prager Paul B. | Sale (S) | Common stock, $0.001 par value per share | 137,500 | USD 17.06 | USD 2,345,750 | SEC filing ↗ |
| 2026-08-17 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 2,860 | USD 17.47 | USD 49,964 | SEC filing ↗ |
| 2026-08-16 | Tanimoto William Joseph | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 6,666 | USD — | USD — | SEC filing ↗ |
| 2026-08-14 | Bucella Michael C. | Purchase (P) | Common stock, $0.001 par value per share | 3,023 | USD 16.54 | USD 50,000 | SEC filing ↗ |
| 2026-08-03 | Langlais Kerri M. | D (D) | Common stock, $0.001 par value per share | 276,500 | USD — | USD — | SEC filing ↗ |
| 2026-08-01 | Langlais Kerri M. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 500,000 | USD — | USD — | SEC filing ↗ |
| 2026-08-01 | Fleury Patrick | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 500,000 | USD — | USD — | SEC filing ↗ |
| 2026-06-30 | Prager Lisa A. | Award / grant (A) | Common stock, $0.001 par value per share | 1,013 | USD — | USD — | SEC filing ↗ |
| 2026-06-30 | Carter Walter E. | Award / grant (A) | Common stock, $0.001 par value per share | 1,266 | USD — | USD — | SEC filing ↗ |
| 2026-06-30 | Bucella Michael C. | Award / grant (A) | Common stock, $0.001 par value per share | 1,013 | USD — | USD — | SEC filing ↗ |
| 2026-06-29 | Prager Paul B. | Sale (S) | Common stock, $0.001 par value per share | 137,500 | USD 26.60 | USD 3,657,500 | SEC filing ↗ |
| 2026-06-24 | Tanimoto William Joseph | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 10,000 | USD — | USD — | SEC filing ↗ |
| 2026-06-23 | Prager Lisa A. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 56,023 | USD — | USD — | SEC filing ↗ |
| 2026-06-23 | Pincus Steven T. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 63,026 | USD — | USD — | SEC filing ↗ |
| 2026-06-23 | Motz Catherine J. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 56,023 | USD — | USD — | SEC filing ↗ |
| 2026-06-23 | Fabiano Amanda | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 56,023 | USD — | USD — | SEC filing ↗ |
| 2026-06-23 | Carter Walter E. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 56,023 | USD — | USD — | SEC filing ↗ |
| 2026-06-23 | Bucella Michael C. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 56,023 | USD — | USD — | SEC filing ↗ |
| 2026-05-27 | Prager Paul B. | Sale (S) | Common stock, $0.001 par value per share | 166,650 | USD 25.92 | USD 4,319,140 | SEC filing ↗ |
| 2026-05-26 | Prager Paul B. | Sale (S) | Common stock, $0.001 par value per share | 166,650 | USD 24.43 | USD 4,071,260 | SEC filing ↗ |
| 2026-05-18 | Prager Paul B. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 981,161 | USD — | USD — | SEC filing ↗ |
| 2026-05-18 | Prager Paul B. | D (D) | Common stock, $0.001 par value per share | 542,582 | USD — | USD — | SEC filing ↗ |
| 2026-05-18 | Langlais Kerri M. | Option exercise / conversion (M) | Common stock, $0.001 par value per share | 327,054 | USD — | USD — | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | WULF |
| CIK | 0001083301 |
| Sector | Financial Services |
| Industry | Capital Markets Yahoo Finance |
| SEC SIC | 6199 Finance Services |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 469 transaction lines from 2020-03-02 to 2026-09-30 39 P purchase lines · 56 S sale lines · 374 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.