Woodruff William Matthew 4

What Happened
William Matthew Woodruff, Vice President of Public and Government Affairs at Kirby Corp (KEX), had 394 restricted stock units (RSUs vest) on January 24, 2026. The RSUs converted into 394 shares (exercise/conversion reported at $0.00 per share). To satisfy tax withholding, 167 of those shares were withheld/disposed at an implied value of $128.70 per share, totaling $21,493. The result is a net delivery of 227 shares to Woodruff (394 − 167 = 227).

Key Details

• Transaction date: January 24, 2026; filing date: January 27, 2026.
• Reported transactions: conversion of 394 RSUs to shares (code M, $0.00 exercise price) and withholding/disposition of 167 shares for tax liability (code F) at $128.70 per share = $21,493.
• Net shares received: 227 (394 vested − 167 withheld).
• Shares owned after the transaction: not disclosed in the filing.
• Footnotes: F1 clarifies each RSU is a contingent right to receive cash or one share; F2 notes these RSUs were granted Jan 29, 2021 and vest in five equal annual installments beginning Jan 24, 2022 (this appears to be the final installment).
• No late filing flag indicated in the document.

Context

• This was a routine RSU vesting and tax-withholding event (not an open-market buy or sale). The exercise/conversion at $0.00 reflects RSU settlement rather than a stock-option purchase price. Withholding shares to cover taxes is common and does not by itself indicate a change in insider sentiment.