This is a small, routine insider sale by an officer. No material impact expected. Monitor for any subsequent Form 4 filings to confirm execution, but no trading signal here.
Price Chart
Executive Summary
Margaret Montemayor, an officer of Vistra Corp., filed a Form 144 notice of intent to sell 5,000 shares of common stock, with an estimated aggregate market value of $824,800. The shares were acquired through restricted stock vesting events in 2024 and 2025. This is a relatively small sale relative to Vistra's $55.5B market cap, representing less than 0.002% of shares outstanding, and is likely a routine portfolio diversification move.
Key Facts
- Insider: Margaret Montemayor (Officer)
- Proposed sale: 5,000 shares of common stock
- Estimated value: $824,800
- Shares acquired via restricted stock vesting on 11/13/2024, 03/05/2025, and 11/13/2025
- Filing date: 05/27/2026
- Market cap: $55.5B; sale represents ~0.0015% of market cap
Financial Impact
Proposed sale of $824,800 in stock, negligible relative to $55.5B market cap
Risk Factors
- Insider may still execute the sale, but the amount is immaterial
- No other insider selling patterns detected in the last 30 days
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001959173-26-004034 |
| Document: 0001959173-26-004034-index.html | 0001959173-26-004034 |
| Document: 0001959173-26-004034.txt | 0001959173-26-004034 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 10, 2026 21d ago | Press Release | $148.38 $140.67 | ▼ −5.20% | ▼ −4.97% | $140.02 (−5.63%) |
Sep 10, 2026 22d ago | Insider Cluster | $147.05 $143.56 | ▼ −2.37% | ▼ −1.87% | $140.02 (−4.78%) |
Sep 2, 2026 4w ago | Insider Buy | $143.46 $147.05 | ▲ +2.50% | ▲ +3.46% | $140.02 (−2.40%) |
Aug 24, 2026 5w ago | Insider Buy | $135.66 $137.37 | ▲ +1.26% | ▲ +0.79% | $140.02 (+3.21%) |
Aug 7, 2026 8w ago | 8-K | $140.01 $148.13 | ▲ +5.80% | ▲ +5.40% | $140.02 (+0.01%) |
Jul 16, 2026 11w ago | 8-K | $152.56 $168.98 | ▲ +10.76% | ▲ +12.43% | $140.02 (−8.22%) |
Jul 6, 2026 12w ago | Press Release | $157.22 $158.86 | ▲ +1.04% | ▲ +0.55% | $140.02 (−10.94%) |
Jun 30, 2026 13w ago | 8-K | $153.16 $155.73 | ▲ +1.68% | ▲ +1.42% | $140.02 (−8.58%) |
Jun 18, 2026 15w ago | 144 | $167.26 $163.49 | ▼ −2.25% | ▼ −0.19% | $140.02 (−16.29%) |
Jun 18, 2026 15w ago | 144 | $163.75 $167.77 | ▲ +2.46% | ▲ +4.12% | $140.02 (−14.49%) |
US Market Status
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