Amy D. Husted, Executive Vice President, General Counsel and Secretary of Kirby Corp (NYSE: KEX), filed a Form 4 on August 7, 2026, disclosing transactions in common stock and restricted stock units dated August 5, 2026.

Key Highlights

  • RSU vesting: 186 restricted stock units vested on August 5, 2026, acquired at $0, converting to 186 shares of common stock.
  • Tax withholding disposition: 74 shares of common stock were disposed of at $131.10 per share on August 5, 2026, under transaction code F.
  • Remaining direct holdings: Following the transactions, Husted directly holds 10,926 shares of common stock.
  • Remaining RSUs: 558 restricted stock units remain beneficially owned directly after the reported transactions.
  • RSU grant terms: The vested units were granted on August 5, 2024, and vest in five equal annual installments beginning August 5, 2025.

Amy Husted's RSU Vesting and Share Disposition at Kirby Corp

According to the filing, Husted's August 5, 2026 transactions involved two related steps. First, 186 restricted stock units were converted to common stock under transaction code M at a price of $0, bringing her total directly held shares to 11,000 before the second transaction. Each restricted stock unit, the filing states, "represents a contingent right to receive cash or one share of common stock of the issuer."

Second, 74 shares were disposed of at $131.10 per share under transaction code F, which under SEC reporting conventions denotes payment of a tax liability. Following this disposal, the filing reports Husted directly holds 10,926 shares of Kirby Corp common stock, par value $0.10 per share.

Regarding the derivative securities, the filing discloses that the 186 restricted stock units that vested were part of a grant made on August 5, 2024, scheduled to vest in five equal annual installments beginning August 5, 2025. The filing notes that delivery of cash or shares, at the election of the issuer, occurs on or as soon as practicable on each vesting date. After the reported transaction, 558 restricted stock units remain directly held. The Form 4 was signed by Ronald A. Dragg as agent and attorney-in-fact on August 7, 2026.

What Was Disclosed

Kirby Corp executive Amy D. Husted reported the vesting of 186 restricted stock units and the disposition of 74 shares at $131.10 on August 5, 2026, leaving her with 10,926 directly held shares and 558 remaining restricted stock units.