Latest filingSep 01, 2026Most recent Form 4
WULF
TERAWULF INC.
NasdaqFinancialsFinance Services
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$9.99M2 buys
Total selling$432M2 sells
Net open-market-$422M4 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period6transactions
- M · Option exercise · dominant2 · 33%
- P · Open-market buys2 · 33%
- S · Open-market sells2 · 33%
Activity by reported role
A joint filing can contribute to multiple roles6transactions
- Director · dominant3 · 50%
- CAO2 · 33%
- Chief executive officer1 · 17%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (4)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeBucella Michael C.Common stock, $0.001 par value per share · Direct
344,704Aug 17, 2026
Tanimoto William JosephCommon stock, $0.001 par value per share · Direct
55,564Aug 16, 2026
Tanimoto William JosephRestricted Stock Units · Direct
0Aug 16, 2026
Prager Paul B.Common stock, $0.001 par value per share · Indirect · By Beowulf E&D Holdings Inc.
3,807,552Aug 27, 2026
Carter Walter E.Common stock, $0.001 par value per share · Direct
229,090Aug 31, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- PB-$2.3M
- CE-$2.0M
- BC+$99.9k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
WULF transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| WULF | Carter Walter E. | DIR | sale | 130k | -$197M | S | 0.0% | 09/01 | 08/31 | |
| WULF | Prager Paul B. | CEO | sale10b5-1 | 137k | -$234M | S | 0.0% | 08/29 | 08/27 | |
| WULF | Bucella Michael C. | DIR | buy | 2.86k | $4.99M | P | −16.8% | 08/17 | 08/17 | |
| WULF | Bucella Michael C. | DIR | buy | 3.02k | $4.99M | P | −16.8% | 08/17 | 08/14 |
TERAWULF INC. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at TERAWULF INC.?
Carter Walter E., Prager Paul B., Bucella Michael C., Tanimoto William Joseph.
When was the latest reported open-market purchase?
Bucella Michael C. reported a buy on Aug 17, 2026 valued at $4.99M. Read the SEC filing.
When was the latest reported open-market sale?
Carter Walter E. reported a sale on Aug 31, 2026 valued at $197M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $4,223,512.51. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.