Lazzari Melanie A 4

What Happened

• Melanie A. Lazzari, Executive Vice President of S&T Bancorp (STBA), had 510 restricted stock units (RSUs) convert to common shares on April 10, 2026. The gross value of the 510 shares at the reported price ($43.81) is $22,343.
• To cover tax liabilities, 224 of those shares were withheld (disposed) valued at $9,813, leaving a net issuance to the insider of 286 shares (net value ≈ $12,530). One reporting line shows the conversion/exercise of the derivative (RSU) and another shows the shares withheld for taxes.

Key Details

• Transaction date: 2026-04-10; reported on Form 4 filed 2026-04-14.
• Prices/values reported: 510 shares × $43.81 = $22,343 (converted); 224 shares × $43.81 = $9,813 (withheld for taxes).
• Net shares received: 286 shares (510 converted − 224 withheld).
• Footnotes: F1 indicates automatic conversion of vested awards into common stock; F2 confirms shares were withheld to pay tax liability; F3 notes the shares come from a special grant made on Apr 10, 2023 that vests over three anniversaries.
• Filing timeliness: filing date is April 14, 2026 (transaction occurred April 10, 2026). The filing does not indicate a timeliness exception in the provided data.

Context

• This was a routine vesting/convert event for RSUs (derivative conversion), not an open-market purchase or sale. The withheld shares represent tax withholding (code F) rather than an economically motivated sale.
• Transaction codes: M = exercise/conversion of derivative (the RSU vesting); F = shares withheld to cover tax liability. Such vesting and withholding are common for equity awards and do not by themselves signal insider sentiment.