Core Scientific CEO has 23,508 shares withheld for taxes

The chief executive's 23,508-share withholding was tied to restricted stock unit vesting, not an open-market sale.

Rhea-AI Filing Summary

On October 1, 2026, Core Scientific, Inc. CEO Adam Taylor Sullivan had 23,508 shares withheld to satisfy tax obligations when previously granted restricted stock units vested; this was not an open-market sale. The reported price was $15.98 per share, and his direct holdings afterward were 4,412,918 shares.

Insider Trade Summary

Tax Withholding: 23,508 shares

Tax Withholding 1 txn

Insider Sullivan Adam Taylor

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	23,508	$15.98	$376K

Holdings After Transaction: Common Stock — 4,412,918 shares (Direct)

Footnotes (1)

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.

Key Figures

Shares withheld for tax obligations: 23,508 shares Reported price per share: $15.98 per share Direct holdings after transaction: 4,412,918 shares

3 metrics

Shares withheld for tax obligations 23,508 shares Upon vesting of previously granted restricted stock units on October 1, 2026

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

Direct holdings after transaction 4,412,918 shares Adam Taylor Sullivan's reported position

Key Terms

restricted stock units, withholding tax obligations, vesting

3 terms

restricted stock units financial

"vesting of restricted stock units which were previously granted and reported"

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

"satisfy withholding tax obligations upon the vesting"

vesting financial

"upon the vesting of restricted stock units"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

FAQ

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

How many CORZ shares did CEO Adam Taylor Sullivan have withheld?

Core Scientific CEO Adam Taylor Sullivan had 23,508 shares withheld on October 1, 2026, at a reported price of $15.98 per share, to satisfy withholding tax obligations upon vesting of previously granted restricted stock units.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 10/05/2026 - 05:07 PM Accepted by SEC EDGAR 10/05/2026 - 05:06 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^*

Sullivan Adam Taylor

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

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)		23,508	D	$15.98	4,412,918	D

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.

	/s/ Todd DuChene, as Attorney-in-Fact	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)