William Matthew Woodruff - 03 Feb 2026 Form 4 Insider Report for KIRBY CORP (KEX)

Reporting relationship: VP of Public and Govt Affairs
Issuer ticker: KEX
Reported as of: 03 Feb 2026
Net transaction value: -$57,323
SEC form: 4
Accepted by SEC: 05 Feb 2026, 21:16:32 UTC
Prior SEC filing: 03 Feb 2026
Next SEC filing: 11 Feb 2026
Source filing: View source filing
Reporting owner signature: Ronald A. Dragg, Agent and Attorney-in-Fact

Key filing fact

William Matthew Woodruff filed Form 4 for KIRBY CORP (KEX) on 05 Feb 2026.

Key facts

This page summarizes William Matthew Woodruff's Form 4 filing for KIRBY CORP (KEX).
6 reported transactions and 4 derivative rows are listed below.
Accepted by SEC: 05 Feb 2026, 21:16.

Change

Previous filing in this sequence was filed on 03 Feb 2026.
Current net transaction value: -$57,323.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001721923 Primary reporting owner

Woodruff William Matthew

Relationship: VP of Public and Govt Affairs
Address: 55 WAUGH DRIVE, SUITE 1000, HOUSTON
Signature: Ronald A. Dragg, Agent and Attorney-in-Fact
Signature date: 05 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

KEX transaction

Common Stock, par value $0.10 per share

Options Exercise

Transaction value: $0
Shares: +1,109
Change %: +54%
Price: $0.000000
Shares after: 3,162
Date: 03 Feb 2026
Ownership: Direct
Footnotes: F1

KEX transaction

Common Stock, par value $0.10 per share

Tax liability

Transaction value: $57,323
Shares: -475
Change %: -15%
Price: $120.68
Shares after: 2,687
Date: 03 Feb 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

KEX transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -303
Change %: -50%
Price: $0.000000
Shares after: 303
Date: 03 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 303
Exercise price
Footnotes: F1, F2

KEX transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -278
Change %: -33%
Price: $0.000000
Shares after: 556
Date: 03 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 278
Exercise price
Footnotes: F1, F3

KEX transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -299
Change %: -25%
Price: $0.000000
Shares after: 897
Date: 03 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 299
Exercise price
Footnotes: F1, F4

KEX transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -229
Change %: -20%
Price: $0.000000
Shares after: 916
Date: 03 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 229
Exercise price
Footnotes: F1, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

Each restricted stock unit represents a contingent right to receive cash or one share of common stock of the issuer.

Footnote 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.

Footnote 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.

Footnote 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.

Footnote 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.