Vistra EVP sells 10,000 shares under 10b5-1 plan

Vistra Corp. executive Stephanie Zapata Moore, EVP and General Counsel, sold 10,000 shares of Common Stock in an open-market transaction.

Rhea-AI Filing Summary

Vistra Corp. executive Stephanie Zapata Moore, EVP and General Counsel, sold 10,000 shares of Common Stock in an open-market transaction. The sale took place on March 9, 2026 at a weighted-average price of $160.31 per share, with individual trades ranging from $160.00 to $160.70.

After this transaction, she directly holds 114,409 shares of Vistra common stock. The filing notes that the sale was effected under a pre-arranged Rule 10b5-1 trading plan adopted on December 2, 2025, indicating the trades were scheduled in advance.

Insider Trade Summary 10b5-1

Net Seller: 10,000 shares

Net Sell 1 txn

Insider Moore Stephanie Zapata

Role EVP and General Counsel

Sold 10,000 shs ($1.60M)

Type	Security	Shares	Price	Value
Sale	Common Stock	10,000	$160.31	$1.60M

Holdings After Transaction: Common Stock — 114,409 shares (Direct)

Footnotes (2)

1. F1. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 02, 2025.
2. F2. Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $160.00 to $160.70, inclusive. For all transactions reported in this Form 4 utilizing a weighted-average price, the reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

FAQ

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

What insider transaction did Vistra (VST) report for Stephanie Zapata Moore?

Vistra reported that EVP and General Counsel Stephanie Zapata Moore sold 10,000 shares of Common Stock. The open-market sale occurred at a weighted-average price of $160.31 per share, reflecting a pre-planned disposition under a Rule 10b5-1 trading plan.

At what price did the Vistra (VST) insider shares sell in this Form 4?

The 10,000 Vistra shares sold at a weighted-average price of $160.31. Individual trades were executed between $160.00 and $160.70 per share, with the filing offering to provide exact breakdowns of share counts at each price upon request.

How many Vistra (VST) shares does Stephanie Zapata Moore hold after the sale?

Following the reported transaction, Stephanie Zapata Moore directly holds 114,409 shares of Vistra common stock. This figure reflects her remaining direct ownership after selling 10,000 shares in the open market as disclosed in the Form 4 filing.

Was the Vistra (VST) insider sale made under a Rule 10b5-1 plan?

Yes. The filing states the transaction was effected pursuant to a Rule 10b5-1 trading plan adopted on December 2, 2025. Such plans pre-schedule trades, indicating the timing of this 10,000-share sale was arranged in advance rather than decided opportunistically.

What role does the insider in this Vistra (VST) Form 4 hold at the company?

The reporting person, Stephanie Zapata Moore, serves as Vistra’s Executive Vice President and General Counsel. Her position as a senior officer makes her transactions in Vistra common stock subject to Section 16 reporting, including this disclosed 10,000-share sale.

Does the Vistra (VST) Form 4 specify if the price range is a weighted average?

Yes. The Form 4 notes the reported $160.31 figure is a weighted-average sale price. It explains that shares were sold in multiple transactions between $160.00 and $160.70, and offers detailed per-price share information to the issuer, shareholders, or SEC staff upon request.

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

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Accepted by SEC EDGAR 03/12/2026 - 06:02 AM EDT 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).

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^*

Moore Stephanie Zapata

(Last) (First) (Middle)

6555 SIERRA DRIVE

(Street)

IRVING TX 75039

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Vistra Corp. [ VST ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
03/09/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	03/09/2026		S(1)		10,000	D	$160.31(2)	114,409	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 transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 02, 2025.

2. Represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $160.00 to $160.70, inclusive. For all transactions reported in this Form 4 utilizing a weighted-average price, the reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.

Remarks:

	/s/ Daniela Gutierrez, as Attorney-in-Fact	03/11/2026
	** 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.