O'Neil Christian G. 4

4 · KIRBY CORP · Filed Feb 5, 2026

AI-generated summary of this filing

Updated Feb 6, 2026

Kirby (KEX) President Christian O'Neil Exercises RSUs, Withholds Shares

What Happened

Christian G. O'Neil, President and COO of Kirby Corp (KEX), had restricted stock units (RSUs) convert into 10,188 shares on Feb 3, 2026 (reported Feb 5, 2026). To cover tax withholding, 4,011 shares were surrendered/sold at $120.68 per share, generating $484,047. The remaining 6,177 shares (10,188 − 4,011) were retained by O'Neil from this vesting event.
Transaction codes: M = exercise/conversion of derivatives (the RSU conversion); F = payment of tax liability via share withholding/sale.

Key Details

Transaction date: February 3, 2026; filing date: February 5, 2026 (filed within the usual two-business-day window).
Shares converted (acquired): 10,188 RSU-derived shares at $0.00 exercise price (code M).
Shares withheld/sold for taxes (disposed): 4,011 shares at $120.68, total proceeds/value $484,047 (code F).
Net shares retained from this vesting: 6,177 shares.
Footnotes: F1–F5 indicate these were restricted stock units convertible to cash or shares; they stem from grants made in 2022–2025 with five-year vesting schedules (annual installments beginning Feb 3 of each relevant year).
No 10b5‑1 plan or late-filing indication noted in the provided filing.

Context

This is a routine vesting and tax-withholding event (RSUs converting to shares and a “sell-to-cover” or share surrender to satisfy tax obligations), not an open-market investment decision. Such withholding is common and should not be read as a standalone bullish or bearish signal.
For retail investors: purchases or open-market buys by insiders often carry more direct informational weight than routine vesting/tax-withholding transactions.

Form 4

Period: 2026-02-03

President and COO

Transactions

Exercise/Conversion
Common Stock, par value $0.10 per share
[F1]
2026-02-03+10,188→ 26,585 total
Tax Payment
Common Stock, par value $0.10 per share
2026-02-03$120.68/sh−4,011$484,047→ 22,574 total
Exercise/Conversion
Restricted Stock Units
[F1][F2]
2026-02-03−2,728→ 2,728 total
→ Common Stock (2,728 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F3]
2026-02-03−2,662→ 5,324 total
→ Common Stock (2,662 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F4]
2026-02-03−2,507→ 7,521 total
→ Common Stock (2,507 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F5]
2026-02-03−2,291→ 9,164 total
→ Common Stock (2,291 underlying)

Footnotes (5)

[F1]Each restricted stock unit represents a contingent right to receive cash or one share of common stock of the issuer.
[F2]These restricted stock units granted on January 28, 2022, vest in five equal annual installments beginning on February 3, 2023. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.
[F3]These restricted stock units granted on February 1, 2023, vest in five equal annual installments beginning on February 3, 2024. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.
[F4]These restricted stock units granted on February 2, 2024, vest in five equal annual installments beginning on February 3, 2025. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.
[F5]These restricted stock units granted on January 31, 2025, vest in five equal annual installments beginning on February 3, 2026. Cash or shares of common stock of the issuer, at the election of the issuer, will be delivered to the reporting person on or as soon as practicable on each vesting date.

Signature

Ronald A. Dragg, Agent and Attorney-in-Fact|2026-02-05

1 file