WULF
TERAWULF INC. · Finance & Insurance · Market cap $6.4B
Insiders sold $5.1M net in the last 90 days ·3 sellers, 1 buyer· 1 of 3 sales under Rule 10b5-1 plans· latest Form 4 filed Sep 17, 2026
Insider Buying
$440K
reported purchases (SEC code P)
Insider Selling
$36.1M
reported sales (SEC code S)
Unique Insiders
6
in the rolling window
Latest filing
Oct 2, 2026
Bucella Michael C.
TERAWULF INC. (WULF) has 61 SEC Form 4 filings (97 transaction rows) in the rolling window, disclosed by 6 distinct insiders. Most recent filing: Oct 2, 2026.
Inside the rolling window, 6 insiders at TERAWULF INC. reported 13 open-market purchases totaling $440K and 12 open-market sales totaling $36.1M. The most active filer is Director Bucella Michael C. with 13 filings. Insiders have net sold $21.7M over the trailing 6 months. The most recent open-market filing is a purchase of 6,085 shares by Director Bucella Michael C., dated Sep 15, 2026, worth $90K.
- Industry:Financial - Capital Markets
- CEO:Paul Prager
- Employees:141
- HQ:Easton, MD, US
- IPO:1994-04-05
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Director | Purchase | 6,085 | $90K | Sep 17 | -22.5% | SEC ↗ | |
Motz Catherine J.First filing | Director | Sale | 56,023 | $998K | Sep 10 | -20.9% | SEC ↗ |
Carter Walter E.First filing | Director | Sale | 130,626 | $2.0M | Sep 1 | -12.9% | SEC ↗ |
| Chief Executive Officer | Sale | 137,500 | $2.3M | Aug 29 | -15.7% | SEC ↗ | |
Bucella Michael C.First in 5 months | Director | Purchase | 3,023 | $50K | Aug 17 | -27.5% | SEC ↗ |
Bucella Michael C.First in 5 months | Director | Purchase | 2,860 | $50K | Aug 17 | -27.5% | SEC ↗ |
| Chief Executive Officer | Sale | 137,500 | $3.7M | Jul 2 | -39.8% | SEC ↗ | |
| Chief Executive Officer | Sale | 166,650 | $4.1M | May 29 | -50.1% | SEC ↗ | |
| Chief Executive Officer | Sale | 166,650 | $4.3M | May 29 | -50.1% | SEC ↗ | |
| Chief Executive Officer | Sale | 137,500 | $2.9M | Apr 29 | — | SEC ↗ | |
| Chief Executive Officer | Sale | 79,200 | $1.6M | Apr 29 | — | SEC ↗ | |
Khan Nazar M.First filing | Chief Technology Officer | Sale | 452,152 | — | Apr 25 | — | SEC ↗ |
Prager Paul B.First filing | Chief Executive Officer | Sale | 137,500 | $2.2M | Mar 25 | — | SEC ↗ |
Prager Paul B.First filing | Chief Executive Officer | Sale | 137,500 | $2.3M | Mar 25 | — | SEC ↗ |
| Director | Purchase | 1,665 | $25K | Mar 20 | — | SEC ↗ | |
| Director | Purchase | 1,584 | $25K | Mar 19 | — | SEC ↗ | |
| Director | Purchase | 1,581 | $25K | Mar 19 | — | SEC ↗ | |
| Director | Purchase | 1,670 | $25K | Mar 19 | — | SEC ↗ | |
Fleury PatrickFirst filing | Chief Financial Officer | Sale | 600,000 | $9.7M | Mar 19 | — | SEC ↗ |
| Director | Purchase | 1,338 | $20K | Mar 13 | — | SEC ↗ | |
| Director | Purchase | 654 | $10K | Mar 9 | — | SEC ↗ | |
| Director | Purchase | 679 | $10K | Mar 9 | — | SEC ↗ | |
| Director | Purchase | 752 | $10K | Mar 9 | — | SEC ↗ | |
| Director | Purchase | 3,171 | $50K | Mar 4 | — | SEC ↗ | |
Bucella Michael C.First filing | Director | Purchase | 4,178 | $50K | Dec 11 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does WULF have?
TERAWULF INC. (WULF) has 61 SEC Form 4 filings (97 transaction rows) in the rolling 365-day window, disclosed by 6 distinct insiders. Most recent filing: Oct 2, 2026.
When was the most recent SEC Form 4 filing for WULF?
The most recent Form 4 filing for WULF on Tracefour is dated Oct 2, 2026.
Who is the most active insider at WULF?
The most active SEC Form 4 filer at WULF in the rolling window is Director Bucella Michael C., with 13 filings.
What is the net insider flow at WULF over the last 6 months?
Over the trailing 180 days, insiders at WULF have net sold $21.7M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at WULF in the current window?
Inside the rolling window, insiders at WULF bought $440K and sold $36.1M based on SEC Form 4 filings.
Can I get alerts for WULF insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at TERAWULF INC. (WULF). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
TERAWULF INC. is in the Finance & Insurance sector.