![Margaret Montemayor](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Margaret Montemayor
Comptroller/Controller/Auditor at
VISTRA CORP.
Net worth: 1 M $ as of 31/07/2026
Profile
Ms. Margaret M.
Montemayor is a Chief Accounting Officer, Controller & SVP at Vistra Corp.
Ms. Montemayor was previously employed as a Chief Accounting Officer & Vice President by Pioneer Natural Resources Co. and a Manager by PricewaterhouseCoopers LLP.
She received her undergraduate degree from St. Mary's University and an MBA from St. Mary's University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 02/06/2026 | 9,760 ( 0% ) | 1 M $ | 31/07/2026 |
Margaret Montemayor active positions
| Companies | Position | Start |
|---|---|---|
| VISTRA CORP. | Comptroller/Controller/Auditor | 13/11/2023 |
Former positions of Margaret Montemayor
| Companies | Position | End |
|---|---|---|
| PIONEER NATURAL RESOURCES COMPANY | Comptroller/Controller/Auditor | 14/07/2022 |
PricewaterhouseCoopers LLP
 PricewaterhouseCoopers LLP Miscellaneous Commercial ServicesCommercial Services Provides auditing, assurance, consulting and tax & business consulting services | Corporate Officer/Principal | 01/06/2010 |
Training of Margaret Montemayor
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
76
1st degree connections
4
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
Pioneer Natural Resources Co.
 Pioneer Natural Resources Co. Integrated OilEnergy Minerals Develops low-cost and carbon-intensity oil and natural gas | Energy Minerals |
PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP Miscellaneous Commercial ServicesCommercial Services Provides auditing, assurance, consulting and tax & business consulting services | Commercial Services |
St. Mary's University
 St. Mary's University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Vistra Corp.
 Vistra Corp. Electric UtilitiesUtilities Operates as a retail electricity and power generation company | Utilities |
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