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

Q: How many Core Scientific (CORZ) shares did Todd M. Duchene sell?

Todd M. Duchene sold a total of 10,000 shares of Core Scientific Common Stock. The sales were split into two open-market transactions of 9,600 and 400 shares, both executed on May 18, 2026 .

Q: At what prices were the CORZ shares sold by the Core Scientific officer?

The officer sold 9,600 shares at a weighted average price of $23.1244 and 400 shares at a weighted average price of $23.7575 . The trades occurred within reported price ranges between $22.66 and $23.82 per share.

Q: What type of transactions did the Core Scientific (CORZ) officer execute?

The transactions were open-market sales of Common Stock , coded as “S” in the filing. Both entries are classified as non-derivative sales and are described as sales in open market or private transactions in the Form 4 data.

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Core Scientific, Inc. officer Todd M. Duchene reported selling 10,000 shares of Common Stock in open-market transactions on May 18, 2026 under a pre-arranged Rule 10b5-1 trading plan adopted on December 5, 2025.

The sales occurred in two tranches: 9,600 shares at a weighted average price of $23.1244 per share, within a range of $22.66 to $23.62, and 400 shares at a weighted average price of $23.7575, within a range of $23.69 to $23.82. Following these transactions, he directly owns 1,960,348 shares of Common Stock.

Insider Trade Summary 10b5-1

Net Seller: 10,000 shares ($231,497)

Net Sell 2 txns

Insider DUCHENE TODD M

Role See remarks

Sold 10,000 shs ($231K)

Type	Security	Shares	Price	Value
Sale	Common Stock	9,600	$23.1244	$222K
Sale	Common Stock	400	$23.7575	$10K

Holdings After Transaction: Common Stock — 1,960,748 shares (Direct, null)

Footnotes (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 $22.66 to $23.62, 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 $23.69 to $23.82, 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: 10,000 shares First tranche average price: $23.1244 per share Second tranche average price: $23.7575 per share +3 more

6 metrics

Shares sold 10,000 shares Total Common Stock sold on May 18, 2026

First tranche average price $23.1244 per share 9,600-share sale; trades from $22.66 to $23.62

Second tranche average price $23.7575 per share 400-share sale; trades from $23.69 to $23.82

Post-transaction holdings 1,960,348 shares Common Stock directly owned after May 18, 2026 sales

Trade date May 18, 2026 Date of both open-market sales

Trading plan adoption date December 5, 2025 Rule 10b5-1 trading plan adoption

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. These shares were sold in multiple transactions at prices ranging from $22.66 to $23.62, inclusive."

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 →

05/20/2026 - 04:20 PM

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)
05/18/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/18/2026		S⁽¹⁾		9,600	D	$23.1244⁽²⁾	1,960,748	D
Common Stock	05/18/2026		S⁽¹⁾		400	D	$23.7575⁽³⁾	1,960,348	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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 $22.66 to $23.62, 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 $23.69 to $23.82, 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	05/20/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

How many Core Scientific (CORZ) shares did Todd M. Duchene sell?

Todd M. Duchene sold a total of 10,000 shares of Core Scientific Common Stock. The sales were split into two open-market transactions of 9,600 and 400 shares, both executed on May 18, 2026.

At what prices were the CORZ shares sold by the Core Scientific officer?

The officer sold 9,600 shares at a weighted average price of $23.1244 and 400 shares at a weighted average price of $23.7575. The trades occurred within reported price ranges between $22.66 and $23.82 per share.

Was the Core Scientific (CORZ) insider sale made under a Rule 10b5-1 plan?

Yes. The filing states the transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 5, 2025, indicating the sales were pre-arranged rather than newly decided.

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

After the reported transactions, Todd M. Duchene directly owns 1,960,348 shares of Core Scientific Common Stock. This figure reflects his position immediately following the 10,000 shares sold on May 18, 2026.

What type of transactions did the Core Scientific (CORZ) officer execute?

The transactions were open-market sales of Common Stock, coded as “S” in the filing. Both entries are classified as non-derivative sales and are described as sales in open market or private transactions in the Form 4 data.