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

Rhea-AI Filing Summary

Core Scientific, Inc. officer Todd M. Duchene reported selling 10,000 shares of the company’s common stock in open-market transactions. The sales occurred on May 4, 2026, at weighted-average prices of $21.53 for 100 shares and $20.8499 for 9,900 shares.

After these transactions, Duchene directly holds 1,980,348 shares of Core Scientific common stock. The filing notes the trades were executed under a pre-arranged Rule 10b5-1 trading plan adopted on December 5, 2025, indicating they were scheduled in advance rather than timed discretionarily.

Insider Trade Summary 10b5-1

Net Seller: 10,000 shares ($208,567)

Net Sell 2 txns

Insider DUCHENE TODD M

Role See remarks

Sold 10,000 shs ($209K)

Type	Security	Shares	Price	Value
Sale	Common Stock	9,900	$20.8499	$206K
Sale	Common Stock	100	$21.53	$2K

Holdings After Transaction: Common Stock — 1,980,448 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 $20.49 to $21.39, 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

Shares sold (total): 10,000 shares First sale size: 100 shares First sale price: $21.53/share +5 more

8 metrics

Shares sold (total) 10,000 shares Open-market sales on May 4, 2026

First sale size 100 shares Common stock sold at $21.53 on May 4, 2026

First sale price $21.53/share Weighted-average price for 100-share sale

Second sale size 9,900 shares Common stock sold at $20.8499 on May 4, 2026

Second sale price $20.8499/share Weighted-average price for 9,900-share sale

Post-transaction holdings 1,980,348 shares Direct ownership after reported sales

Price range of trades $20.49–$21.39 Range of prices for multiple transactions on May 4, 2026

10b5-1 plan adoption date December 5, 2025 Rule 10b5-1 trading plan governing these sales

Key Terms

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

4 terms

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.

weighted average price financial

"The price reported is a weighted average price."

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"

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.

non-derivative financial

"transaction_type: non-derivative"

Form 4 Insider Transactions: What Each Field Means →

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)
05/04/2026

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	05/04/2026		S(1)		9,900	D	$20.8499(2)	1,980,448	D
Common Stock	05/04/2026		S(1)		100	D	$21.53	1,980,348	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 $20.49 to $21.39, 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	05/06/2026
	** 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)

FAQ

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

Core Scientific officer Todd M. Duchene sold 10,000 shares of common stock in open-market trades on May 4, 2026. The transactions were split into 100 shares at $21.53 and 9,900 shares at $20.8499, according to the filing.

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

Duchene sold 100 shares at a weighted-average price of $21.53 and 9,900 shares at $20.8499. A footnote adds that multiple trades occurred in a range between $20.49 and $21.39, with detailed breakdowns available on request.

How many Core Scientific CORZ shares does Todd M. Duchene hold after the sale?

Following the reported sales, Todd M. Duchene directly holds 1,980,348 shares of Core Scientific common stock. This indicates the 10,000 shares sold represent a small portion of his overall reported direct ownership position in the company.

Was the CORZ insider sale by Todd M. Duchene under a Rule 10b5-1 plan?

Yes. The filing states the transactions were executed under a Rule 10b5-1 trading plan adopted on December 5, 2025. Such plans pre-schedule trades, indicating these sales were arranged in advance rather than being opportunistic market-timing decisions.

What type of Form 4 transactions did Core Scientific (CORZ) disclose?

The Form 4 discloses two open-market sales of Core Scientific common stock by officer Todd M. Duchene. Both transactions are coded “S,” indicating non-derivative sales, and together total 10,000 shares sold on May 4, 2026.