Kirby Corp (KEX) president settles RSUs and withholds shares for taxes

Rhea-AI Filing Summary

Kirby Corp’s President and COO O’Neil Christian G. reported equity compensation activity on February 3, 2026. He acquired 10,188 shares of common stock at $0 per share through the vesting and settlement of restricted stock units.

To cover taxes, 4,011 shares were disposed of at $120.68 per share, leaving him with 22,574 shares of Kirby common stock held directly. The filing also details multiple restricted stock unit grants that vest in five equal annual installments beginning between February 3, 2023 and February 3, 2026, delivering either cash or shares at the issuer’s election.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

O'Neil Christian G.

(Last) (First) (Middle)

55 WAUGH DRIVE

SUITE 1000

(Street)

HOUSTON TX 77007

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
KIRBY CORP [ KEX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and COO

3. Date of Earliest Transaction (Month/Day/Year)
02/03/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, par value $0.10 per share	02/03/2026		M		10,188	A	$0(1)	26,585	D
Common Stock, par value $0.10 per share	02/03/2026		F		4,011	D	$120.68	22,574	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	02/03/2026		M			2,728	(2)	(2)	Common Stock	2,728	$0	2,728	D
Restricted Stock Units	(1)	02/03/2026		M			2,662	(3)	(3)	Common Stock	2,662	$0	5,324	D
Restricted Stock Units	(1)	02/03/2026		M			2,507	(4)	(4)	Common Stock	2,507	$0	7,521	D
Restricted Stock Units	(1)	02/03/2026		M			2,291	(5)	(5)	Common Stock	2,291	$0	9,164	D

Explanation of Responses:

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

2. 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.

3. 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.

4. 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.

5. 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.

	Ronald A. Dragg, Agent and Attorney-in-Fact	02/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What insider transaction did Kirby Corp (KEX) report for O’Neil Christian G.?

Kirby Corp reported that President and COO O’Neil Christian G. acquired 10,188 common shares at $0 per share via restricted stock unit settlement, with 4,011 shares disposed at $120.68 to cover taxes, resulting in 22,574 directly owned shares after the transactions.

How many Kirby Corp (KEX) shares does the president own after this Form 4?

After the reported transactions, Kirby Corp’s President and COO O’Neil Christian G. directly owns 22,574 shares of common stock. This reflects 10,188 shares acquired from restricted stock units and 4,011 shares disposed of at $120.68 per share, primarily for tax withholding.

What do the restricted stock units in the Kirby Corp (KEX) Form 4 represent?

Each restricted stock unit represents a contingent right to receive either cash or one share of Kirby common stock. The issuer chooses whether to deliver cash or shares, which are provided to the reporting person on or as soon as practicable after each vesting date.

When do the Kirby Corp (KEX) restricted stock units reported in this filing vest?

The restricted stock units vest in five equal annual installments. Grants dated January 28, 2022; February 1, 2023; February 2, 2024; and January 31, 2025 begin vesting on February 3, 2023, 2024, 2025, and 2026 respectively, with delivery on or shortly after each vesting date.

What was the sale price for shares disposed in the Kirby Corp (KEX) Form 4?

The Form 4 shows 4,011 Kirby Corp common shares disposed of at $120.68 per share. This transaction is coded “F,” indicating shares were withheld or sold to satisfy tax obligations associated with the equity award settlement on February 3, 2026.

How many restricted stock units remain for the Kirby Corp (KEX) executive after this filing?

Following the reported transactions, the executive beneficially owns 9,164 restricted stock units directly. These units relate to multiple award dates and will settle in either cash or Kirby common stock, at the issuer’s election, on or as soon as practicable after each scheduled vesting date.