Moore Stephanie Zapata 4

What Happened Stephanie Zapata Moore, EVP and General Counsel of Vistra Corp. (VST), sold 10,000 shares on March 9, 2026. The shares were sold for a weighted-average price of $160.31, generating proceeds of approximately $1,603,100. This was a sale (not a purchase or exercise), which is commonly routine insider liquidity rather than an affirmative buy signal.

Key Details

• Transaction date: March 9, 2026 (reported on Form 4 filed March 12, 2026).
• Transaction type: Sale (open market/private sale); 10,000 shares at a weighted-average price of $160.31. Reported sale prices ranged from $160.00 to $160.70.
• Proceeds: ~$1,603,100.
• Shares owned after transaction: Not disclosed in the information provided in your summary.
• Footnotes: (1) Transaction was effected under a Rule 10b5-1 trading plan adopted by the reporting person on December 2, 2025. (2) The reported price is a weighted-average; a breakdown of shares sold at each price is available on request.
• Filing timeliness: Form 4 was filed March 12, 2026 for the March 9 transaction; no late-filing flag was provided in the supplied data.

Context A 10b5-1 plan indicates the trades were pre-arranged under a written plan, which is often used by insiders to execute trades on a set schedule and reduce concerns about trading on material nonpublic information. Sales provide liquidity to the insider but do not, by themselves, signal management’s view of the company’s future performance.