Insider Trading & Ownership of Margaret Montemayor

Location: Irving, TX
Summary: The estimated net worth of Margaret Montemayor is at least $4,227,332 dollars as of 09 Mar 2026. Margaret Montemayor is the SVP, Chief Accounting Officer of Vistra Corp. and owns shares of Vistra Corp. (VST) stock worth about $3.1M. Margaret Montemayor is the VP & CAO of PIONEER NATURAL RESOURCES CO and owns shares of PIONEER NATURAL RESOURCES CO stock worth about $1.13M.
Signature: /s/ Daniela Gutierrez, as Attorney-in-Fact
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Ownership of Margaret Montemayor

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
VST	Vistra Corp.	SVP, Chief Accounting Officer	$3,100,504			05 Mar 2026
PXD	PIONEER NATURAL RESOURCES CO	Vp & Cao	$1,126,828			29 Mar 2022

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.