Core Scientific: Duchene has 8,228 shares withheld

The withholding followed vesting of previously granted restricted stock units and was not an open-market sale.

Rhea-AI Filing Summary

Core Scientific, Inc. Chief Legal and Administrative Officer Todd M. Duchene had 8,228 shares withheld on October 1, 2026, to satisfy tax obligations upon vesting of previously granted restricted stock units; the reported price was $15.98 per share. The withholding was not an open-market sale. After the transaction, he directly held 1,179,668 shares; a grantor retained annuity trust of which he is sole trustee held 700,000 shares indirectly.

Insider Trade Summary

Tax Withholding: 8,228 shares

Tax Withholding 2 txns

Insider DUCHENE TODD M

Role See remarks

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	8,228	$15.98	$131K
holding	Common Stock F2	--	--	--

Holdings After Transaction: Common Stock — 1,179,668 shares (Direct); Common Stock — 700,000 shares (Indirect, By GRAT)

Footnotes (2)

1. F1. This Form 4 reports the withholding of shares to satisfy withholding tax obligations upon the vesting of restricted stock units which were previously granted and reported. The change in share ownership of the Reporting Person reported in this Form 4 results from the difference between (i) the number of restricted stock units subject to vesting that were previously granted and reported and (ii) the net number of shares actually received upon vesting of such restricted stock units after the withholding of shares to satisfy withholding tax obligations. This does not reflect an open market sale of securities.
2. F2. Represents shares held by a grantor retained annuity trust of which the Reporting Person is the sole trustee.

Key Figures

Shares withheld: 8,228 shares Reported price per share: $15.98 per share Direct shares held after transaction: 1,179,668 shares +1 more

4 metrics

Shares withheld 8,228 shares October 1, 2026; to satisfy tax obligations upon vesting of restricted stock units

Reported price per share $15.98 per share Withholding transaction on October 1, 2026

Direct shares held after transaction 1,179,668 shares Todd M. Duchene, following the October 1, 2026 transaction

Indirect shares held by grantor retained annuity trust 700,000 shares As of October 1, 2026; the reporting person is the trust’s sole trustee

Key Terms

restricted stock units, withholding tax obligations, grantor retained annuity trust

3 terms

restricted stock units financial

"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

"to satisfy withholding tax obligations"

grantor retained annuity trust financial

"shares held by a grantor retained annuity trust"

A grantor retained annuity trust (GRAT) is an estate-planning tool where the person who creates the trust transfers assets into it but receives fixed cash payments (an annuity) from the trust for a set number of years; whatever remains after that term passes to designated beneficiaries. It matters to investors because it can shift future appreciation of assets out of the creator’s taxable estate—like putting an asset into a timed vending machine that pays you fixed amounts while any extra value that grows inside the machine goes to heirs with reduced gift or estate tax consequences.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CORZ shares did Todd M. Duchene have withheld?

8,228 shares were withheld on October 1, 2026, at a reported price of $15.98 per share to satisfy tax obligations upon vesting of previously granted restricted stock units.

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

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Available on EDGAR 10/05/2026 - 05:05 PM Accepted by SEC EDGAR 10/05/2026 - 05:05 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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).

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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	See remarks

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/01/2026		F(1)		8,228	D	$15.98	1,179,668	D
Common Stock								700,000	I	By GRAT(2)

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This Form 4 reports the withholding of shares to satisfy withholding tax obligations upon the vesting of restricted stock units which were previously granted and reported. The change in share ownership of the Reporting Person reported in this Form 4 results from the difference between (i) the number of restricted stock units subject to vesting that were previously granted and reported and (ii) the net number of shares actually received upon vesting of such restricted stock units after the withholding of shares to satisfy withholding tax obligations. This does not reflect an open market sale of securities.

2. Represents shares held by a grantor retained annuity trust of which the Reporting Person is the sole trustee.

Remarks:

Chief Legal and Administrative Officer

	/s/ Todd DuChene	10/05/2026
	** Signature of Reporting Person	Date
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)