Kirby Corp officer granted 2,530 RSUs

Kerin Matthew P reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Kerin Matthew P reported acquisition or exercise transactions in this Form 4 filing.

Kirby Corp executive Matthew P. Kerin received a grant of 2,530 restricted stock units. The award was granted on February 20, 2026, at a stated price of $0.00 per unit as part of his compensation.

The units vest in five equal annual installments beginning on February 21, 2027. On each vesting date, Kirby may choose to settle the vested units in cash or in one share of common stock per unit and will deliver the value to Kerin as soon as practicable.

Insider Trade Summary

Grant/Award: 2,530 shares

Grant/Award 1 txn

Insider Kerin Matthew P

Role VP IR and Treasurer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	2,530	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 2,530 contracts (Direct)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive cash or one share of common stock of the issuer.
2. F2. These restricted stock units granted on February 20, 2026, vest in five equal annual installments beginning on February 21, 2027. 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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Kirby Corp (KEX) report for Matthew P. Kerin?

Kirby Corp reported that executive Matthew P. Kerin received 2,530 restricted stock units on February 20, 2026. These units are a form of equity-linked compensation that may be settled in cash or common stock at the company’s election upon vesting.

How many restricted stock units were granted to the Kirby Corp (KEX) executive?

Matthew P. Kerin was granted 2,530 restricted stock units. This entire amount was acquired in a single grant, and his total holdings of these units following the transaction are also reported as 2,530, reflecting a new award rather than open-market activity.

When do the newly granted Kirby Corp (KEX) restricted stock units vest?

The restricted stock units granted on February 20, 2026, vest in five equal annual installments. Vesting begins on February 21, 2027, with additional installments each year, aligning the executive’s compensation with longer-term service and performance at Kirby Corp.

How will the Kirby Corp (KEX) restricted stock units be settled for Matthew P. Kerin?

Each restricted stock unit represents a right to receive either cash or one share of Kirby common stock. On each vesting date, the company may elect the form of settlement and will deliver the cash or shares to Matthew P. Kerin as soon as practicable.

Did the Kirby Corp (KEX) insider pay for the restricted stock units granted?

The Form 4 shows a transaction price of $0.00 per restricted stock unit. This indicates the units were granted as part of compensation, rather than purchased in the open market, and represent a contingent future right tied to vesting conditions.

What role does Matthew P. Kerin hold at Kirby Corp (KEX) in this Form 4?

Matthew P. Kerin is identified as an officer of Kirby Corp with the title "VP IR and Treasurer." The reported transaction reflects an equity-based award associated with this executive role, aligning part of his compensation with the company’s future performance.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/24/2026 - 11:03 AM Learn about SEC filing dates

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
Estimated average burden
hours per response:			0.5

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^*

Kerin Matthew P

(Last) (First) (Middle)

55 WAUGH DR

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)
	VP IR and Treasurer

3. Date of Earliest Transaction (Month/Day/Year)
02/20/2026

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

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)	02/20/2026		A		2,530		(2)	(2)	Common Stock	2,530	$0	2,530	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 February 20, 2026, vest in five equal annual installments beginning on February 21, 2027. 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	02/24/2026
	** 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.