Massivemarkets

SEC Form 4

TeraWulf Inc. (WULF) insider trading

In the 12 months to Oct 24, 2026, 4 WULF insiders reported open-market sales of $36.1M across 8 filings; one director bought $440.5K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$36.1M
8 filings · 4 insiders
Open-market purchases
$440.5K
8 filings · Michael C. Bucella, Director
Pre-arranged sales (10b5-1)
4 of 8
$18.9M of $36.1M sold (52%)

Who traded WULF, and when

  • Purchase
  • Sale
  • Sale, pre-arranged (10b5-1)

WULF daily close from Oct 24, 2025 to Oct 23, 2026, between $10.99 and $28.98, last $11.32. 8 sale and 8 purchase filings by 5 insiders, marked at their filing dates. Paul B. Prager, Chief Executive Officer: sold $23.4M across 5 filings, first filed Mar 25, 2026, last Aug 28, 2026. Patrick Fleury, Chief Financial Officer: sold $9.7M across 1 filing, first filed Mar 19, 2026, last Mar 19, 2026. Walter E. Carter, Director: sold $2.0M across 1 filing, first filed Sep 1, 2026, last Sep 1, 2026. Catherine J. Motz, Director: sold $997.9K across 1 filing, first filed Sep 9, 2026, last Sep 9, 2026. Michael C. Bucella, Director: bought $440.5K across 8 filings, first filed Dec 11, 2025, last Sep 16, 2026.

Largest mark · tap a row for others

Patrick Fleury · Chief Financial Officer

Sale $9,684,000

600,000 shares at $16.14 avg

Filed Mar 19, 2026 · traded Mar 17

Close on filing date $15.74

WULF daily closelast $11.32

Paul B. Prager · Chief Executive Officer

$23.4M sold

Patrick Fleury · Chief Financial Officer

$9.7M sold

Walter E. Carter · Director

$2.0M sold

Catherine J. Motz · Director

$997.9K sold

Michael C. Bucella · Director

$440.5K bought
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has TeraWulf Inc.'s CEO sold stock?

Yes. Paul B. Prager (CEO) sold 1,100,000 shares ($23.4M) between Mar 2026 and Aug 2026, $18.9M of it under a pre-arranged 10b5-1 plan.

Open-market trades

16 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Paul B. PragerChief Executive Officer$23.4M—581% of sales
Patrick FleuryChief Financial Officer$9.7M—1—
Walter E. CarterDirector$2.0M—1—
Catherine J. MotzDirector$997.9K—1—
Michael C. BucellaDirector—$440.5K8—
Other insider activity (not market trades) · 68 records
  • Option exercises33 records
  • Tax withholding (sold to cover)1 record
  • Grants and awards11 records
  • Gifts1 record
  • Other22 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for WULF every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.