MILLER SCOTT P 4

What Happened

• Scott P. Miller, Vice President and Chief Investment Officer of Kirby Corp (KEX), had restricted stock units (RSUs) vest and was credited with 5,375 shares on February 3, 2026 (reported Feb 5, 2026). Of those, 1,311 shares were surrendered to cover tax withholding at $120.68 per share, totaling $158,211. The filing shows the RSU conversion/exercise (code M) and the tax withholding disposition (code F). No open‑market sale for cash other than the shares withheld for taxes was reported.

Key Details

• Transaction date: 2026-02-03; filing date: 2026-02-05 (timely).
• RSU conversion: 5,375 shares reported as exercised/converted (code M, acquired).
• Tax withholding: 1,311 shares disposed to cover taxes at $120.68/share → $158,211 (code F).
• Other listed M dispositions (1,591; 1,664; 1,433; 687) reflect the RSU settlement entries tied to the conversion (totaling 5,375) and are reported at $0 per share in the filing.
• Shares owned after the transaction are not specified in the excerpt provided.
• Footnotes: These shares arise from RSU grants made in 2022–2025 that vest in five equal annual installments (see F1–F5). The company may deliver cash or shares at vesting.

Context

• This was a routine RSU vesting and settlement, not an open‑market sale by the insider; the tax‑withholding surrender is common practice (cashless/net settlement). Code legend: M = exercise/conversion of a derivative (RSU), F = shares used to pay tax withholding. Such vesting events reflect compensation realization rather than an expressed buy/sell market view.