Core Scientific, Inc./tx (CORZ) insider trading
Core Scientific, Inc./tx insiders have made 1 open-market purchase worth $98k since Sep 17, 2026, by 1 insider. The latest: Eric Stanton Weiss (Director) bought $98k, filed Sep 17, 2026, scored 22 out of 100.
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Insider purchases
| Filed | Insider | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Sep 17 Form 4 (opens sec.gov) |
Eric Stanton WeissDirectorDirector · Near 52-week low | +2% stake | 22 | $98k 6,000 at $16.33 |
−3.6% | −23.7% |
Track record (hypothetical): a week after the filing, these buys averaged −3.6% (0% up, 1 measured); a month after, −23.7% (0% up, 1 measured).
Insider sales
7 open-market sales on record
| Filed | Insider | Sold |
|---|---|---|
| Oct 28 Form 4 (opens sec.gov) |
Todd M. DucheneOfficer · planned (10b5-1) | $136k 10,000 at $13.56 · 1% of holdings |
| Oct 20 Form 4 (opens sec.gov) |
Todd M. DucheneOfficer · planned (10b5-1) | $139k 10,000 at $13.87 · 1% of holdings |
| Oct 14 Form 4 (opens sec.gov) |
Todd M. DucheneOfficer · planned (10b5-1) | $151k 10,000 at $15.12 · 1% of holdings |
| Oct 7 Form 4 (opens sec.gov) |
Todd M. DucheneOfficer · planned (10b5-1) | $163k 10,000 at $16.31 · 1% of holdings |
| Sep 30 Form 4 (opens sec.gov) |
Todd M. DucheneOfficer · planned (10b5-1) | $168k 10,000 at $16.76 · 1% of holdings |
| Sep 23 Form 4 (opens sec.gov) |
Todd M. DucheneOfficer · planned (10b5-1) | $184k 10,000 at $18.37 · 1% of holdings |
| Sep 16 Form 4 (opens sec.gov) |
Todd M. DucheneOfficer · planned (10b5-1) | $171k 10,000 at $17.14 · 1% of holdings |
Most insider sales are planned in advance or made for personal reasons, so a sale says less than a buy.
Investors with more than 5% of CORZ (13D and 13G)
| Filed | Investor | Kind | Stake |
|---|---|---|---|
| Oct 28 13G | MFN Partners, LP | Passive | 7.6% |
A 13D is filed by an investor who may push for change; a 13G by a passive one.
Planned insider sales of CORZ (Form 144)
| Filed | Insider | To sell |
|---|---|---|
| Oct 13 Form 144 | TODD DUCHENE REVOCABLE TRUSTOfficer · 10b5-1 plan | $2.2M 140,000 shares from Oct 12 |
A Form 144 is filed before an insider sells restricted or control shares; the Form 4 reports the sale once made.
Insiders who bought CORZ
- Eric Stanton Weiss Director
Questions
Are insiders buying CORZ stock?
Yes. In the last 90 days, 1 open-market purchase was filed, worth $98k, against $1.1M of open-market sales.
Who bought CORZ stock most recently?
Eric Stanton Weiss, Director, bought 6,000 shares for $98k (Form 4 (opens sec.gov), filed Sep 17, 2026).
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Insiders are also buying, same industry
Data as of Oct 28, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer