Montemayor Margaret 4

What Happened
Margaret Montemayor, SVP and Chief Accounting Officer of Vistra Corp. (VST), had 1,989 restricted stock units (RSUs) vest on March 5, 2026 (reported as an award, code A, at $0.00). To cover tax withholding related to the vesting, the issuer withheld 561 shares (code F) at a reported per-share amount of $167.40, resulting in proceeds of $93,911. This was an RSU vesting event with tax withholding—not an open-market sale or purchase.

Key Details

• Transaction dates: March 5, 2026 (award vested and withholding executed). Form 4 filed March 9, 2026 (accession 0001602114-26-000002).
• Award: 1,989 RSUs granted/vested (reported at $0.00 per share).
• Withholding: 561 shares withheld at $167.40 per share for taxes = $93,911. (Disposition coded F.)
• Shares owned after transaction: Not specified in this filing.
• Footnotes: (F1) The RSU grant was approved by Vistra’s Social Responsibility and Compensation Committee on Feb 18, 2026. (F2) The withholding was done by the issuer to satisfy tax obligations per the RSU award terms and was not within the reporting person’s control.

Context
RSU vesting and employer share-withholding for taxes are routine executive compensation events and do not necessarily indicate buying or selling intent. The withholding (code F) is a tax-payment mechanism, not an open-market disposition by the insider. Retail investors typically view purchases as stronger signals than routine vesting/withholding transactions.