Kirby Corp (NYSE: KEX) insider exercises options and sells shares

Rhea-AI Filing Summary

Kirby Corporation's President and COO reported an insider transaction involving company common stock. On December 22, 2025, the officer exercised employee stock options to buy 11,145 shares of Kirby common stock at an exercise price of $73.29 per share. That same day, the officer reported selling 11,145 shares of common stock at a weighted average price of $111.68 per share, with individual sale prices ranging from $111.63 to $111.82 per share.

Following these transactions, the officer directly beneficially owned 14,835 shares of Kirby common stock, and the reported employee stock option position tied to these 11,145 shares was reduced to zero.

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

OMB APPROVAL

OMB Number:			3235-0287
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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)
12/22/2025

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	12/22/2025		M		11,145	A	$73.29	25,980	D
Common Stock, par value $0.10 per share	12/22/2025		S		11,145	D	$111.68(1)	14,835	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
Employee Stock Options (Right to Buy)	$73.29	12/22/2025		M			11,145	01/31/2023	01/31/2027	Common Stock	11,145	$0	0	D

Explanation of Responses:

1. The reported price is the weighted average sales price. The sales were at prices ranging from $111.63 to $111.82 per share. The reporting person will provide, upon request by the commission staff, full information regarding the number of shares sold at each separate price.

	Ronald A. Dragg, Agent and Attorney-in-Fact	12/23/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Kirby Corp (KEX) report in this Form 4?

The Form 4 reports that Kirby Corporation's President and COO exercised employee stock options to purchase 11,145 shares of common stock at $73.29 per share and sold 11,145 shares of common stock on December 22, 2025.

How many Kirby Corp (KEX) shares were acquired and sold by the officer?

The officer acquired 11,145 shares of Kirby common stock through an option exercise and sold 11,145 shares of common stock on the same date, as reported in the Form 4.

At what prices did the Kirby Corp (KEX) insider exercise options and sell shares?

The employee stock options were exercised at an exercise price of $73.29 per share. The reported sale had a weighted average price of $111.68 per share, with individual sale prices ranging from $111.63 to $111.82 per share.

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

After the reported transactions, the President and COO directly beneficially owned 14,835 shares of Kirby common stock.

What happened to the Kirby Corp (KEX) employee stock options in this filing?

The filing shows employee stock options (right to buy) for 11,145 shares with a $73.29 exercise price, exercisable beginning January 31, 2023 and expiring January 31, 2027, were exercised on December 22, 2025, leaving 0 options of this grant beneficially owned afterward.

What role does the reporting person hold at Kirby Corp (KEX)?

The reporting person is identified as an officer of Kirby Corporation, serving as President and Chief Operating Officer (COO).