Core Scientific (CORZ) CEO has 15,584 shares withheld for taxes

Rhea-AI Filing Summary

Core Scientific, Inc. reported that CEO Adam Taylor Sullivan had 15,584 shares of common stock withheld on 2026-07-16 to satisfy tax obligations upon the vesting of restricted stock units at $22.72 per share, leaving 4,436,426 shares held directly.

Insider Trade Summary

Net Seller: 15,584 shares

Net Sell 1 txn

Insider Sullivan Adam Taylor

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	15,584	$22.72	$354K

Holdings After Transaction: Common Stock — 4,436,426 shares (Direct)

Footnotes (1)

1. F1. Represents shares withheld to satisfy withholding tax obligations upon the vesting of restricted stock units.

Key Figures

Shares withheld for taxes: 15,584 shares Per-share value for withholding: $22.72 per share Shares held after transaction: 4,436,426 shares

3 metrics

Shares withheld for taxes 15,584 shares Common stock withheld on 2026-07-16 to satisfy RSU-related tax obligations

Per-share value for withholding $22.72 per share Transaction price applied to the 15,584 withheld shares

Shares held after transaction 4,436,426 shares CEO’s direct holdings of Core Scientific common stock following the withholding

Key Terms

restricted stock units, withholding tax obligations, tax-withholding disposition

3 terms

restricted stock units financial

"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"

tax-withholding disposition financial

"The transaction is classified as a tax-withholding disposition in the insider data"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/20/2026 - 04:17 PM Accepted by SEC EDGAR 07/20/2026 - 04:16 PM Learn about SEC filing dates

FAQ

What insider transaction did Core Scientific (CORZ) report for its CEO?

Core Scientific reported that CEO Adam Taylor Sullivan had 15,584 shares of common stock withheld at $22.72 per share to satisfy tax obligations when restricted stock units vested, leaving him with 4,436,426 shares held directly after the transaction.

Was the Core Scientific (CORZ) CEO’s Form 4 transaction an open-market sale?

No. The Form 4 describes shares withheld to cover tax obligations upon RSU vesting, coded as a tax-withholding disposition (code F), rather than a discretionary open-market sale of Core Scientific common stock by the CEO.

How many Core Scientific (CORZ) shares does the CEO hold after this Form 4?

After the withholding transaction, CEO Adam Taylor Sullivan directly holds 4,436,426 shares of Core Scientific common stock, according to the post-transaction holdings figure reported in the Form 4 insider filing data.

What price per share was used for the Core Scientific (CORZ) tax-withholding event?

The shares withheld to satisfy the CEO’s RSU-related tax obligations were valued at $22.72 per share. This per-share figure is shown as the transaction price for the 15,584 shares classified as a tax-withholding disposition.

Was the Core Scientific (CORZ) CEO’s Form 4 transaction under a Rule 10b5-1 plan?

The Rule 10b5-1 checkbox is not marked as affirmative, and the transaction is identified as shares withheld for taxes on RSU vesting, indicating it reflects tax withholding mechanics rather than trades executed under a pre-arranged 10b5-1 trading plan.

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)
07/16/2026

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	07/16/2026		F(1)		15,584	D	$22.72	4,436,426	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. Represents shares withheld to satisfy withholding tax obligations upon the vesting of restricted stock units.

	/s/ Todd DuChene, as Attorney-in-Fact	07/20/2026
	** 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)