Core Scientific, Inc. (CORZ) officer sells 10,000 shares under Rule 10b5-1 plan

Rhea-AI Filing Summary

Todd M. Duchene, an officer of Core Scientific, Inc., reported two open-market sales totaling 10,000 shares of Common Stock on July 13, 2026, at weighted average prices of $22.4301 and $23.0100 per share.

The transactions were effected pursuant to a pre-established Rule 10b5-1 trading plan adopted on December 5, 2025.

Insider Trade Summary 10b5-1

Net Seller: 10,000 shares ($224,475)

Net Sell 2 txns

Insider DUCHENE TODD M

Role See remarks

Sold 10,000 shs ($224K)

Type	Security	Shares	Price	Value
Sale	Common Stock	9,700	$22.4301	$218K
Sale	Common Stock	300	$23.01	$7K

Holdings After Transaction: Common Stock — 2,013,726 shares (Direct)

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 $21.91 to $22.89, 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. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.97 to $23.04, 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.

Key Figures

Total shares sold: 10,000 shares of Common Stock Sale tranche at $22.4301: 9,700 shares Sale tranche at $23.0100: 300 shares +3 more

6 metrics

Total shares sold 10,000 shares of Common Stock Combined open-market sales reported for July 13, 2026

Sale tranche at $22.4301 9,700 shares Weighted average price per share for one transaction on July 13, 2026

Sale tranche at $23.0100 300 shares Weighted average price per share for one transaction on July 13, 2026

Price range for lower-priced tranche $21.91 to $22.89 per share Range of individual trade prices within one sale, inclusive

Price range for higher-priced tranche $22.97 to $23.04 per share Range of individual trade prices within the other sale, inclusive

Trading plan adoption date December 5, 2025 Date the Rule 10b5-1 trading plan governing these sales was adopted

Key Terms

Rule 10b5-1 trading plan, weighted average price, open-market sale

3 terms

Rule 10b5-1 trading plan regulatory

"The transactions reported ... were effected pursuant to a Rule 10b5-1 trading plan adopted..."

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 in multiple transactions..."

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..."

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 →

Available on EDGAR 07/15/2026 - 05:42 PM Accepted by SEC EDGAR 07/15/2026 - 05:41 PM Learn about SEC filing dates

FAQ

What insider transaction did CORZ officer Todd M. Duchene report?

Todd M. Duchene, an officer of Core Scientific (CORZ), reported selling 10,000 shares of Common Stock on July 13, 2026. The sales occurred in two open-market transactions at weighted average prices of $22.4301 and $23.0100 per share under a Rule 10b5-1 plan.

At what prices were the CORZ shares sold by Todd M. Duchene?

The reported weighted average sale prices were $22.4301 and $23.0100 per share. Footnotes state the trades occurred in ranges of $21.91–$22.89 and $22.97–$23.04, with full per-trade pricing details available on request.

Were Todd M. Duchene’s CORZ stock sales under a Rule 10b5-1 plan?

Yes. The sales were effected under a Rule 10b5-1 trading plan adopted on December 5, 2025. Such plans pre-schedule trades, meaning the timing of these transactions was set in advance rather than decided on the trade date.

What type of security did the CORZ insider sell?

Todd M. Duchene sold Common Stock of Core Scientific (CORZ) in open-market transactions. The Form 4 lists two non-derivative transactions, each involving Common Stock, with a combined total of 10,000 shares sold on July 13, 2026.

How many total CORZ shares were sold in these insider transactions?

Across the reported transactions, Todd M. Duchene sold a total of 10,000 shares of Core Scientific Common Stock. This total comprises one sale of 9,700 shares at $22.4301 and another of 300 shares at $23.0100, both on July 13, 2026.

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).

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)

	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)
07/13/2026

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	07/13/2026		S(1)		9,700	D	$22.4301(2)	2,013,726	D
Common Stock	07/13/2026		S(1)		300	D	$23.01(3)	2,013,426	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. 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 $21.91 to $22.89, 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.

3. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.97 to $23.04, 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 DuChene	07/15/2026
	** 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)