CORZ insider buying and SEC filings, explained
Core Scientific, Inc. · CIK 1839341
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$552K
Insiders who bought
2
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$6.4M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 26, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $13.56 ($136K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,133,286 shares. | SEC filing Filed Oct 28, 2026, 4:18 PM ET |
| Oct 19, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $13.87 ($139K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,143,286 shares. | SEC filing Filed Oct 20, 2026, 4:05 PM ET |
| Oct 12, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $15.12 ($151K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,159,668 shares. | SEC filing Filed Oct 14, 2026, 4:07 PM ET |
| Oct 5, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $16.31 ($163K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,169,668 shares. | SEC filing Filed Oct 7, 2026, 4:50 PM ET |
| Sep 28, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $16.76 ($168K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,187,896 shares. | SEC filing Filed Sep 30, 2026 |
| Sep 21, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $18.37 ($184K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,197,896 shares. | SEC filing Filed Sep 23, 2026 |
| Sep 15, 2026 | Purchase (code P) | Eric Stanton Weiss (Director) bought 6,000 shares at $16.33 ($98K), reported as a purchase (code P). Holdings up 2% to 265,262 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 17, 2026 |
| Sep 14, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $17.14 ($171K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,207,896 shares. | SEC filing Filed Sep 16, 2026 |
| Sep 8, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $18.67 ($187K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,217,896 shares. | SEC filing Filed Sep 10, 2026 |
| Aug 31, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $16.23 ($162K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,927,896 shares. | SEC filing Filed Sep 2, 2026 |
| Aug 24, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $17.45 ($175K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,937,896 shares. | SEC filing Filed Aug 26, 2026 |
| Aug 20, 2026 | Purchase (code P) | Elizabeth Crain (Director) bought 6,000 shares at about $18.33 ($110K), reported as a purchase (code P). Holdings up 9% to 71,348 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 24, 2026 |
| Aug 18, 2026 | Purchase (code P) | Eric Stanton Weiss (Director) bought 7,000 shares at about $19.19 ($134K), reported as a purchase (code P). Holdings up 3% to 259,262 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 20, 2026 |
| Aug 17, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $20.10 ($201K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,959,101 shares. | SEC filing Filed Aug 19, 2026 |
| Aug 10, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $19.98 ($200K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,969,101 shares. | SEC filing Filed Aug 12, 2026 |
| Aug 3, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $22.24 ($222K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,979,101 shares. | SEC filing Filed Aug 5, 2026 |
| Jul 27, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $20.95 ($209K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,989,101 shares. | SEC filing Filed Jul 29, 2026 |
| Jul 20, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $22.30 ($223K), marked as a 10b5-1 plan trade. Holdings down <1% to 1,999,101 shares. | SEC filing Filed Jul 22, 2026 |
| Jul 13, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $22.45 ($224K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,013,426 shares. | SEC filing Filed Jul 15, 2026 |
| Jul 6, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $22.63 ($226K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,023,426 shares. | SEC filing Filed Jul 8, 2026 |
| Jun 29, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $26.17 ($262K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,038,895 shares. | SEC filing Filed Jul 1, 2026 |
| Jun 22, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $29.29 ($293K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,048,895 shares. | SEC filing Filed Jun 24, 2026 |
| Jun 15, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $28.20 ($282K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,058,895 shares. | SEC filing Filed Jun 17, 2026 |
| Jun 8, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $26.85 ($269K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,068,895 shares. | SEC filing Filed Jun 10, 2026 |
| Jun 1, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $28.37 ($284K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,078,895 shares. | SEC filing Filed Jun 3, 2026 |
| May 26, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $26.25 ($263K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,088,895 shares. | SEC filing Filed May 28, 2026 |
| May 18, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $23.15 ($231K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,960,348 shares. | SEC filing Filed May 20, 2026 |
| May 11, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $23.24 ($232K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,970,348 shares. | SEC filing Filed May 13, 2026 |
| May 4, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $20.86 ($209K), marked as a 10b5-1 plan trade. Holdings down 1% to 1,980,348 shares. | SEC filing Filed May 6, 2026 |
| Apr 27, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $20.94 ($209K), marked as a 10b5-1 plan trade. Holdings down <1% to 1,990,348 shares. | SEC filing Filed Apr 29, 2026 |
| Apr 20, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $19.80 ($198K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,000,348 shares. | SEC filing Filed Apr 22, 2026 |
| Apr 13, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $18.63 ($186K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,027,089 shares. | SEC filing Filed Apr 15, 2026 |
| Apr 6, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $16.49 ($165K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,037,089 shares. | SEC filing Filed Apr 8, 2026 |
| Apr 1, 2026 | Planned (10b5-1) | Todd M. Duchene (Chief Legal and Administrative Officer) sold 10,000 shares at about $15.25 ($153K), marked as a 10b5-1 plan trade. Holdings down <1% to 2,047,089 shares. | SEC filing Filed Apr 2, 2026 |
| Mar 9, 2026 | Purchase (code P) | Eric Stanton Weiss (Director) bought 7,000 shares at $14.53 ($102K), reported as a purchase (code P). Holdings up 3% to 252,262 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 10, 2026 |
| Nov 12, 2025 | Other purchase | Yadin Rozov (Director) bought 30,000 Tranche 1 Warrants at about $9.95 ($299K), reported as a purchase (code P). New position of 30,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 13, 2025 |
| Nov 4, 2025 | Purchase (code P) | Eric Stanton Weiss (Director) bought 5,000 shares at $21.50 ($108K), reported as a purchase (code P). Holdings up 2% to 226,687 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 6, 2025 |
29 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
2 insiders bought in 30 days
$342K in purchases since Aug 18, 2026 · Purchases traded Aug 18, 2026 to Sep 15, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Eric Stanton Weiss (Director) | $134K | Aug 18, 2026 | SEC filing |
| Elizabeth Crain (Director) | $110K | Aug 20, 2026 | SEC filing |
| Eric Stanton Weiss (Director) | $98K | Sep 15, 2026 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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