Director adds 1,392 Kirby (NYSE: KEX) shares through stock grant

Rhea-AI Filing Summary

Ainsworth Anne-Marie reported acquisition or exercise transactions in this Form 4 filing.

Kirby Corp director Anne-Marie Ainsworth received a grant of 1,392 shares of common stock on May 4, 2026. The award was recorded at a price of $0.00 per share, indicating it was a compensation-related stock grant rather than an open-market purchase. Following this grant, she directly holds 30,280 shares of Kirby common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Ainsworth Anne-Marie

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.10 per share	1,392	$0.00	--

Holdings After Transaction: Common Stock, par value $0.10 per share — 30,280 shares (Direct, null)

Footnotes (1)

Key Figures

Shares granted: 1,392 shares Grant price: $0.00 per share Post-transaction holdings: 30,280 shares +1 more

4 metrics

Shares granted 1,392 shares Common stock grant to director on May 4, 2026

Grant price $0.00 per share Stated transaction price for stock award

Post-transaction holdings 30,280 shares Director’s direct holdings after the grant

Transaction code A Grant, award, or other acquisition of non-derivative common stock

Key Terms

Common Stock, par value $0.10 per share, Grant, award, or other acquisition, non-derivative, direct ownership

4 terms

Common Stock, par value $0.10 per share financial

"security_title: Common Stock, par value $0.10 per share"

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

non-derivative financial

"transaction_type: non-derivative"

direct ownership financial

"ownership_type: direct, ownership_code: D"

Form 4 Insider Transactions: What Each Field Means →

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^*

Ainsworth Anne-Marie

(Last) (First) (Middle)

176 NORTH TRANQUIL PATH DRIVE

(Street)

THE WOODLANDS TEXAS 77380

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/04/2026

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

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

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

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	05/04/2026		A		1,392	A	$0	30,280	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

Explanation of Responses:

	Ronald A. Dragg, Agent and Attorney-in-Fact	05/06/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Kirby Corp (KEX) report for Anne-Marie Ainsworth?

Kirby Corp reported that director Anne-Marie Ainsworth received a grant of 1,392 shares of common stock. The shares were awarded at a stated price of $0.00 per share as compensation, not through an open-market purchase.

How many Kirby Corp (KEX) shares did Anne-Marie Ainsworth acquire in this Form 4?

Anne-Marie Ainsworth acquired 1,392 shares of Kirby Corp common stock. The Form 4 classifies the transaction with code A, meaning a grant, award, or other acquisition, and lists a transaction price of $0.00 per share.

What is Anne-Marie Ainsworth’s total Kirby Corp (KEX) holdings after the reported grant?

After the grant, Anne-Marie Ainsworth directly holds 30,280 shares of Kirby Corp common stock. This figure reflects her position following the compensation-related award of 1,392 additional shares reported in the Form 4 filing.

Was the Kirby Corp (KEX) insider transaction an open-market buy or a stock grant?

The transaction was a stock grant, not an open-market buy. It is coded A for “Grant, award, or other acquisition” with a price of $0.00 per share, indicating compensation rather than a purchase on the open market.

What role does Anne-Marie Ainsworth hold at Kirby Corp (KEX) in this Form 4?

In this Form 4, Anne-Marie Ainsworth is identified as a director of Kirby Corp. The reported transaction involves a direct ownership position in common stock, increased through a grant of 1,392 shares on May 4, 2026.

How is the ownership type of the new Kirby Corp (KEX) shares classified for Anne-Marie Ainsworth?

The new shares are classified as directly owned by Anne-Marie Ainsworth. The Form 4 lists the ownership code as D for direct ownership, with no indication of indirect entities such as trusts or partnerships holding these specific shares.