This is a routine insider sale by an officer following restricted stock vesting. The dollar amount is immaterial relative to market cap. No immediate trading action warranted; monitor for any pattern of larger or more frequent insider sales in future filings.
Price Chart
Executive Summary
Margaret Montemayor, an officer of Vistra Corp., filed a Form 144 on June 2, 2026, indicating intent to sell 4,600 shares of common stock with an estimated aggregate market value of $736,000. The shares were acquired through restricted stock vesting in November 2025 and March 2026. This is a routine insider sale of a relatively small portion of holdings, and the filing itself is an advance notice of intent, not a completed transaction.
Key Facts
- Insider: Margaret Montemayor (Officer)
- Shares to be sold: 4,600 shares of common stock
- Estimated aggregate market value: $736,000
- Shares acquired via restricted stock vesting on 11/13/2025 (3,003 shares) and 03/05/2026 (1,597 shares)
- Broker: Fidelity Brokerage Services LLC
- Filing date: June 2, 2026; proposed sale date: June 2, 2026
- Recent insider activity (30d): 1 other sale totaling $825K
Financial Impact
Proposed sale of $736,000 worth of common stock, representing a small fraction of total insider holdings and less than 0.002% of Vistra's $52.2B market cap.
Risk Factors
- Insider may not complete the sale; Form 144 is only an intent to sell
- If followed by additional insider sales, could signal reduced confidence
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001959173-26-004255 |
| Document: 0001959173-26-004255-index.html | 0001959173-26-004255 |
| Document: 0001959173-26-004255.txt | 0001959173-26-004255 |
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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