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Core Scientific (CORZ) legal chief sells 10,000 shares under 10b5-1 plan

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Core Scientific, Inc. officer Todd M. Duchene, Chief Legal and Administrative Officer, reported open-market sales of company common stock. On August 10, 2026, he sold 9,000 shares at a weighted average price of $19.8986 per share and 1,000 shares at a weighted average price of $20.6480 per share. The filing states these transactions were effected pursuant to a Rule 10b5-1 trading plan adopted on December 5, 2025, and that the prices reflect multiple trades within disclosed ranges.

Positive

  • None.

Negative

  • None.
Insider DUCHENE TODD M
Role See remarks
Sold 10,000 shs ($200K)
Type Security Shares Price Value
Sale Common Stock F1, F2 9,000 $19.8986 $179K
Sale Common Stock F1, F3 1,000 $20.648 $21K
Holdings After Transaction: Common Stock — 1,969,101 shares (Direct)
Footnotes (3)
  1. F1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 5, 2025.
  2. F2. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.45 to $20.44, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.
  3. F3. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.47 to $20.89, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.
Shares sold (first transaction) 9,000 shares Common Stock sale on August 10, 2026 at weighted average price
Price per share (first transaction) $19.8986 Weighted average sale price for 9,000 shares of Common Stock
Shares sold (second transaction) 1,000 shares Common Stock sale on August 10, 2026 at weighted average price
Price per share (second transaction) $20.6480 Weighted average sale price for 1,000 shares of Common Stock
Total shares sold 10,000 shares Aggregate of reported sales of Common Stock on August 10, 2026
10b5-1 plan adoption date December 5, 2025 Date Duchene adopted Rule 10b5-1 trading plan governing these sales
Price range (first transaction) $19.45 to $20.44 Range of prices for multiple trades comprising first weighted average
Price range (second transaction) $20.47 to $20.89 Range of prices for multiple trades comprising second weighted average
Rule 10b5-1 trading plan regulatory
"transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported is a weighted average price. These shares were sold"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
open market or private transaction financial
"transaction code description: Sale in open market or private transaction"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

FAQ

What insider transactions did CORZ officer Todd Duchene report on August 10, 2026?
Todd M. Duchene reported two open-market sales of Core Scientific (CORZ) common stock on August 10, 2026, totaling 10,000 shares. One trade covered 9,000 shares and the other 1,000 shares, each at separate weighted average prices.

How many CORZ shares did Todd Duchene sell in each Form 4 transaction?
The Form 4 shows sales of 9,000 shares of Core Scientific common stock in one transaction and 1,000 shares in another. Both occurred on August 10, 2026, and are reported as direct ownership transactions.

What prices did Todd Duchene receive for his CORZ stock sales?
Duchene’s sales were reported at weighted average prices of $19.8986 per share for 9,000 shares and $20.6480 per share for 1,000 shares. Each average reflects multiple trades within price ranges disclosed in the footnotes.

Were Todd Duchene’s CORZ stock sales made under a Rule 10b5-1 plan?
Yes. A footnote states the reported Core Scientific (CORZ) transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by Todd M. Duchene on December 5, 2025, indicating they followed a pre-established trading schedule.

Are detailed price breakdowns for the CORZ insider sales available?
The filing reports weighted average prices and notes that shares were sold in multiple transactions within specified ranges. It states Duchene will provide full information on the number of shares sold at each price upon request.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
DUCHENE TODD M
(Last)(First)(Middle)
C/O CORE SCIENTIFIC, INC.
838 WALKER ROAD, SUITE 21-2105
(Street)
DOVER DELAWARE 19904
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Core Scientific, Inc./tx [ CORZ ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
See remarks
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/10/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/10/2026S(1)9,000D$19.8986(2)1,970,101D
Common Stock08/10/2026S(1)1,000D$20.648(3)1,969,101D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 5, 2025.
2. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.45 to $20.44, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.
3. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.47 to $20.89, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.
Remarks:
Chief Legal and Administrative Officer
/s/ Todd DuChene08/12/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR