Plants William Jack II 4

What Happened

• William Jack II, Chief Financial Officer of Financial Institutions Inc. (FISI), converted 2,898 restricted stock units (RSUs) into common shares on 2026-03-20. To satisfy tax withholding, 1,044 of those shares were disposed at $30.59 per share for total proceeds of $31,936. The conversion/settlement of the derivative award is also reported as a $0 disposition entry reflecting the termination of the RSU award.

Key Details

• Transaction date: 2026-03-20.
• Conversion: 2,898 RSUs converted into 2,898 common shares (one-for-one per filing footnotes).
• Tax withholding/sale: 1,044 shares disposed at $30.59 each for $31,936 (code F).
• Derivative settlement: conversion/termination of the derivative award reported (code M) including a $0 disposition entry tied to the award settlement.
• Additional note: Footnote indicates 113 shares were acquired under the FISI 401(k) plan since the last report.
• Shares owned after the transaction: not specified in the filing.
• Filing date: 2026-03-23; the filing shows these transactions, with no late-filing flag indicated in the summary.

Context

• This was an RSU conversion with routine tax withholding, not a market-sale motivated by investment view. The RSU conversion added a net ~1,854 shares to the CFO’s holdings after the 1,044-share tax withholding (2,898 converted minus 1,044 withheld). The separate $0 disposition entry reflects the settlement/termination of the RSU derivative and is standard reporting for award conversions.