# EDGAR Filing Document

**Accession Number:** 0001692819
**File Stem:** 0001703634-25-000003
**Filing Date:** 2025-11
**Character Count:** 10134
**Document Hash:** a152f9596fb4e1b2e2fa52d28d1ba2f4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001703634-25-000003.hdr.sgml**: 20251126

**ACCESSION NUMBER**: 0001703634-25-000003

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251124

**FILED AS OF DATE**: 20251126

**DATE AS OF CHANGE**: 20251126

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Moore Stephanie Zapata
- **CENTRAL INDEX KEY:** 0001703634

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38086
- **FILM NUMBER:** 251531873

**MAIL ADDRESS:**
- **STREET 1:** C/O VISTRA ENERGY CORP.
- **STREET 2:** 1601 BRYAN STREET
- **CITY:** DALLAS
- **STATE:** TX
- **ZIP:** 75201
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Vistra Corp.
- **CENTRAL INDEX KEY:** 0001692819
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 364833255
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 6555 SIERRA DRIVE
- **CITY:** IRVING
- **STATE:** TX
- **ZIP:** 75039
- **BUSINESS PHONE:** 214-812-4600

**MAIL ADDRESS:**
- **STREET 1:** 6555 SIERRA DRIVE
- **CITY:** IRVING
- **STATE:** TX
- **ZIP:** 75039

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Vistra Energy Corp.
- **DATE OF NAME CHANGE:** 20180201

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Vistra Energy Corp
- **DATE OF NAME CHANGE:** 20161221

## Ex-24

```

POWER OF ATTORNEY

Know all by these presents, that the
undersigned hereby makes, constitutes
and appoints each of
Carrie Lee Kirby, Yuki Whitmire,
Daniela Gutierrez and Katherine Reilly,
or either of them acting individually, and
each of their successors in office and
designees, with full power of substitution,
the undersigned's true and lawful attorney-in-fact
to:

prepare, execute in the undersigned's
name and on the undersigned's behalf,
and submit to the U.S. Securities and
Exchange Commission (the "SEC") a Form ID,
including amendments thereto, and any
other documents necessary or appropriate
to obtain codes and passwords enabling
the undersigned to make electronic filings
with the SEC of reports required by Section 16(a)
of the Securities Exchange Act of
1934 (the "Exchange Act"), Rule 144 under the
Securities Act of 1933 ("Rule 144"), or any
rule or regulation of the SEC;

serve as an account administrator for the
undersigned's account in the SEC's enhanced
Electronic Data Gathering, Analysis, and
Retrieval system ("EDGAR Next"), which
includes, among other things, the power to:
(i) appoint and remove account administrators,
users, technical administrators and delegated
entities; (ii) submit, or cause a person or
entity so appointed to submit, filings through
the EDGAR Next system on behalf of the undersigned;
(iii) manage the undersigned's EDGAR access
codes; and (iv) modify and annually confirm the
information in the undersigned's EDGAR Next
account, and delegate authority to Vistra Corp.,
a Delaware corporation (the "Company"), or cause
the Company to accept a delegation of authority,
as a delegated entity for the undersigned's
EDGAR Next account;

execute for and on behalf of the undersigned,
in the undersigned's capacity as an officer
and/or director of the Company, Forms 3, 4, and 5,
and Forms 144, each including amendments thereto,
in accordance with Section 16(a) of the Securities
Exchange Act of 1934 and the rules and regulations
thereunder and Rule 144, respectively;

do and perform any and all acts for and on
behalf of the undersigned which may be
necessary or desirable to complete and
execute any such Form 3, 4, or 5, or Form 144,
complete and execute any amendment or
amendments thereto, and timely file such
form with the SEC and any stock exchange or
similar authority; and

take any other action of any type whatsoever
in connection with the foregoing which,
in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of,
or legally required by, the undersigned, it
being understood that the documents executed by
such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney
shall be in such form and shall contain such
terms and conditions as such attorney-in-fact
may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such
attorney-in-fact full power and authority to
do and perform any and every act and thing
whatsoever requisite, necessary, or proper
to be done in the exercise of any of the
rights and powers herein granted, as fully
to all intents and purposes as the undersigned
might or could do if personally present, with
full power of substitution or revocation,
hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's
substitute or substitutes, shall lawfully do
or cause to be done by virtue of this power
of attorney and the rights and powers herein
granted. The undersigned acknowledges that
the foregoing attorneys-in-fact, in serving
in such capacity at the request of the
undersigned, are not assuming, nor is the
Company assuming, any of the undersigned's
responsibilities to comply with Section 16
of the Exchange Act or Rule 144.

This Power of Attorney shall remain in full
force and effect until the undersigned is no
longer required to file Forms 3, 4, 5 and 144
with respect to the undersigned's holdings of
and transactions in securities issued by the
Company, unless earlier (a) revoked by the
undersigned in a signed writing delivered to
the foregoing attorney-in-fact or (b)
superseded by a new power of attorney
regarding the purposes outlined herein at
a later date.

IN WITNESS WHEREOF, the undersigned has
caused this Power of Attorney to be
executed as of this 1st day of August, 2025.

/s/Stephanie Zapata Moore/
Signature

Stephanie Zapata Moore
Print Name

```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Moore Stephanie Zapata<br><sub>(Last) (First) (Middle)</sub><br>6555 SIERRA DRIVE<br><sub>(Street)</sub><br>IRVING, TX 75039<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2025-11-24 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_EVP and General Counsel_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Vistra Corp. [ VST ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2025-11-24 |  | S |  | 8219 | D | $173.35 | 79854 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

**Remarks:**
Exhibit 24. Power of Attorney

**Signature:** /s/ Daniela Gutierrez, as Attorney-in-Fact  
**Date:** 2025-11-26

### Remarks:

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.**