Kirby President & COO sells 11,287 KEX shares

Kirby Corp President and COO Christian G. O'Neil sold 11,287 shares of common stock in an open-market transaction.

Rhea-AI Filing Summary

Kirby Corp President and COO Christian G. O'Neil sold 11,287 shares of common stock in an open-market transaction. The sale occurred on May 15, 2026 at a weighted average price of $145.93 per share. After this sale, his directly held common stock position reported in this filing is 0 shares. The footnote explains that the trades were executed in multiple transactions at prices ranging from $145.69 to $146.39 per share.

Insights

Equity ownership and governance analyst

Kirby’s President and COO executed a complete open-market sale of his reported direct holdings.

The filing shows Christian G. O'Neil, President and COO of Kirby Corp, sold 11,287 shares of common stock on May 15, 2026 via an open-market sale at a weighted average price of $145.93 per share.

Following the transaction, his directly held common stock reported in this filing is 0 shares. The footnote notes that trades were executed across a price range of $145.69–$146.39 per share, but does not reference any pre-arranged trading plan, leaving the broader context of the decision outside this disclosure.

Insider Trade Summary

Net Seller: 11,287 shares

Net Sell 1 txn

Insider O'Neil Christian G.

Role President and COO

Sold 11,287 shs ($1.65M)

Type	Security	Shares	Price	Value
Sale	Common Stock, par value $0.10 per share	11,287	$145.93	$1.65M

Holdings After Transaction: Common Stock, par value $0.10 per share — 0 shares (Direct)

Footnotes (1)

1. F1. The reported price is the weighted average sales price. The sales were at prices ranging from $145.69 to $146.39 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.

Key Figures

Shares sold: 11,287 shares Weighted average sale price: $145.93 per share Post-transaction direct holdings: 0 shares +1 more

4 metrics

Shares sold 11,287 shares Open-market sale of common stock on May 15, 2026

Weighted average sale price $145.93 per share Common stock sale on May 15, 2026

Post-transaction direct holdings 0 shares Directly held Kirby Corp common stock after sale

Price range of trades $145.69–$146.39 per share Range disclosed in footnote for May 15, 2026 sales

Key Terms

open-market sale, weighted average sales price, Common Stock, par value $0.10 per share

3 terms

open-market sale financial

"transaction_action is described as an open-market sale of common stock"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

weighted average sales price financial

"The reported price is the weighted average sales price."

Common Stock, par value $0.10 per share financial

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

FAQ

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

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

Kirby Corp reported that President and COO Christian G. O'Neil sold 11,287 shares of common stock in an open-market transaction on May 15, 2026 at a weighted average price of $145.93 per share.

At what price did Christian G. O'Neil sell Kirby Corp (KEX) shares?

The filing shows a weighted average sales price of $145.93 per share, with individual transactions executed between $145.69 and $146.39 per share, as detailed in the footnote describing the price range for the May 15, 2026 sales.

How many Kirby Corp (KEX) shares did Christian G. O'Neil sell in this Form 4?

Christian G. O'Neil sold 11,287 shares of Kirby Corp common stock. The transaction is classified as a non-derivative open-market sale, and it is the only transaction reported in this Form 4 for the stated date.

How many Kirby Corp (KEX) shares does Christian G. O'Neil hold after the reported sale?

After the reported open-market sale, the Form 4 indicates that Christian G. O'Neil directly holds 0 shares of Kirby Corp common stock. The filing does not list any remaining derivative positions in the derivative summary section.

Was the Kirby Corp (KEX) insider sale by Christian G. O'Neil executed in one trade or multiple trades?

The Form 4 notes a weighted average price and a footnote explaining that the 11,287 shares were sold in multiple transactions at prices ranging from $145.69 to $146.39 per share on May 15, 2026.

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

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Accepted by SEC EDGAR 05/18/2026 - 05:29 PM 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^*

O'Neil Christian G.

(Last) (First) (Middle)

55 WAUGH DRIVE

SUITE 1000

(Street)

HOUSTON TEXAS 77007

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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	05/15/2026		S		11,287	D	$145.93(1)	0	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:

1. The reported price is the weighted average sales price. The sales were at prices ranging from $145.69 to $146.39 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	05/18/2026
	** 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)