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  4. [Form 4] Core Scientific, Inc./tx Insider Trading Activity

Core Scientific (CORZ) officer sells 10,000 shares, 5,469 withheld for taxes

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

Rhea-AI Filing Summary

Core Scientific, Inc. officer Todd M. Duchene reported open-market sales of 10,000 shares of Common Stock on June 29, 2026 at weighted average prices of about $25.99, $27.42 and $27.95, executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 5, 2025.

On June 30, 2026, an additional 5,469 shares were disposed of to satisfy withholding tax obligations upon vesting of restricted stock units, a non-market transaction. After these actions, Duchene directly owned 2,033,426 shares of Core Scientific common stock.

Positive

  • None.

Negative

  • None.
Insider DUCHENE TODD M
Role See remarks
Sold 10,000 shs ($262K)
Type Security Shares Price Value
Tax Withholding Common Stock 5,469 $25.59 $140K
Sale Common Stock 8,800 $25.9887 $229K
Sale Common Stock 1,100 $27.42 $30K
Sale Common Stock 100 $27.95 $3K
Holdings After Transaction: Common Stock — 2,033,426 shares (Direct, null)
Footnotes (1)
  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. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.56 to $26.41, 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. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.86 to $27.84, 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. Represents shares withheld to satisfy withholding tax obligations upon the vesting of restricted stock units.
Open-market shares sold 10,000 shares Common Stock sales on June 29, 2026
Sale price (block 1) $25.9887 per share Weighted average sale price on June 29, 2026
Sale price (block 2) $27.4200 per share Weighted average sale price on June 29, 2026
Sale price (block 3) $27.9500 per share Weighted average sale price on June 29, 2026
Shares withheld for taxes 5,469 shares RSU tax withholding on June 30, 2026
Shares held after transactions 2,033,426 shares Direct ownership following June 2026 transactions
Net share direction -10,000 shares Net buy/sell shares per transaction summary
Rule 10b5-1 trading plan regulatory
"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."
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.
restricted stock units financial
"Represents shares withheld to satisfy withholding tax obligations upon the vesting of restricted stock units."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
withholding tax obligations financial
"Represents shares withheld to satisfy withholding tax obligations upon the vesting of restricted stock units."
weighted average price financial
"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25.56 to $26.41, inclusive."
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 sale financial
"transaction_action: open-market sale; transaction_code_description: Sale in open market or private transaction"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
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Form 4 Insider Transactions: What Each Field Means →
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)
06/29/2026		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 Stock06/29/2026S(1)8,800D$25.9887(2)2,040,095D
Common Stock06/29/2026S(1)1,100D$27.42(3)2,038,995D
Common Stock06/29/2026S(1)100D$27.952,038,895D
Common Stock06/30/2026F(4)5,469D$25.592,033,426D
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 $25.56 to $26.41, 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 $26.86 to $27.84, 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.
4. Represents shares withheld to satisfy withholding tax obligations upon the vesting of restricted stock units.
Remarks:
Chief Legal and Administrative Officer
/s/ Todd DuChene07/01/2026
** 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

FAQ

What insider transactions did CORZ officer Todd Duchene report on this Form 4?

Todd M. Duchene reported selling 10,000 shares of Core Scientific Common Stock in open-market transactions and a separate disposition of 5,469 shares for tax withholding. All trades involved directly held shares and were disclosed as part of his ongoing equity compensation activity.

At what prices did Todd Duchene sell Core Scientific (CORZ) shares?

Duchene’s reported Core Scientific share sales occurred at weighted average prices of about $25.99, $27.42 and $27.95. The filing notes each was executed through multiple trades within specified price ranges, with full pricing details available on request from the issuer or regulators.

How many Core Scientific (CORZ) shares does Todd Duchene hold after these transactions?

Following the reported sales and tax-withholding disposition, Todd M. Duchene directly holds 2,033,426 shares of Core Scientific Common Stock. This figure reflects his remaining equity position after the June 29, 2026 open-market sales and the June 30, 2026 restricted stock unit tax withholding.

Were Todd Duchene’s CORZ share sales made under a Rule 10b5-1 plan?

Yes. The filing states the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by Todd M. Duchene on December 5, 2025. Such plans pre-schedule trades, providing a structured framework for insider transactions over time.

What does the 5,469-share disposition mean for CORZ insider activity?

The 5,469-share disposition represents shares withheld to satisfy tax obligations upon vesting of restricted stock units, not an open-market sale. It is a routine administrative step where shares are retained by the issuer instead of cash payment for the associated tax liability.