# EDGAR Filing Document

**Accession Number:** 0000056047
**File Stem:** 0001193125-26-096982
**Filing Date:** 2026-3
**Character Count:** 8867
**Document Hash:** 6806df2efff9d05f00e5dc66f6f9efb0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-096982.hdr.sgml**: 20260306

**ACCESSION NUMBER**: 0001193125-26-096982

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 10

**FILED AS OF DATE**: 20260306

**DATE AS OF CHANGE**: 20260306

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** KIRBY CORP
- **CENTRAL INDEX KEY:** 0000056047
- **STANDARD INDUSTRIAL CLASSIFICATION:** WATER TRANSPORTATION [4400]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 741884980
- **STATE OF INCORPORATION:** NV
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-07615
- **FILM NUMBER:** 26732411

**BUSINESS ADDRESS:**
- **STREET 1:** 55 WAUGH DRIVE SUITE 1000
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77007
- **BUSINESS PHONE:** 7134351000

**MAIL ADDRESS:**
- **STREET 1:** P.O. BOX 1745
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77251

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** KIRBY EXPLORATION CO INC
- **DATE OF NAME CHANGE:** 19900510

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

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**SCHEDULE 14A** 

**Proxy Statement Pursuant to Section 14(a) of the** 

**Securities Exchange Act of 1934** 

**(Amendment No.)** 

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Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐

Check the appropriate box:

☐ Preliminary Proxy Statement

☐ **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))**

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Under §240.14a-12

**Kirby Corporation** 

**(Name of Registrant as Specified in its Charter)** 

**(Name of Person(s) Filing Proxy Statement, if other than the Registrant)** 

Payment of Filing Fee (Check all boxes that apply):

☒ No fee required

☐ Fee paid previously with preliminary materials

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

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| | | |
|:---|:---|:---|
| &nbsp;&nbsp;&nbsp;![img212121408_0.jpg](img212121408_0.jpg)<br>P.O. BOX 8016, CARY, NC 27512-9903 | ![img212121408_1.jpg](img212121408_1.jpg) | ![img212121408_1.jpg](img212121408_1.jpg) |
| &nbsp;&nbsp;Your vote <br>matters! | ![img212121408_1.jpg](img212121408_1.jpg) | ![img212121408_1.jpg](img212121408_1.jpg) |
| ![img212121408_2.jpg](img212121408_2.jpg) | ![img212121408_3.jpg](img212121408_3.jpg) |  |
|  | ![img212121408_3.jpg](img212121408_3.jpg) |  |
|  | ![img212121408_3.jpg](img212121408_3.jpg) |  |
|  | ![img212121408_3.jpg](img212121408_3.jpg) |  |
|  | ![img212121408_3.jpg](img212121408_3.jpg) | **Important Notice Regarding the Availability of Proxy Materials for the Stockholders Meeting to be held on April 27, 2026 For Stockholders of record as of March 2, 2026**<br>**To order paper materials, use one of the**<br>**following methods.**  |
| Kirby Corporation**Annual Meeting of Stockholders**<br>Monday, April 27, 2026 10:00 AM, Central Daylight Time<br>55 Waugh Drive, Suite 1100 Houston, TX 77007 | ![img212121408_3.jpg](img212121408_3.jpg) | **Important Notice Regarding the Availability of Proxy Materials for the Stockholders Meeting to be held on April 27, 2026 For Stockholders of record as of March 2, 2026**<br>**To order paper materials, use one of the**<br>**following methods.**  |
|  | ![img212121408_3.jpg](img212121408_3.jpg) | &nbsp;&nbsp;&nbsp;&nbsp;![img212121408_4.jpg](img212121408_4.jpg) |
|  | ![img212121408_3.jpg](img212121408_3.jpg) | &nbsp;&nbsp;&nbsp;&nbsp;![img212121408_4.jpg](img212121408_4.jpg) |
| **For a convenient way to view proxy materials, including the Notice of the 2026 Annual Meeting, Proxy Statement and the Company's Annual Report, VOTE, and obtain directions to attend the meeting go to** www.proxydocs.com/KEX. | ![img212121408_3.jpg](img212121408_3.jpg) | &nbsp;&nbsp;&nbsp;&nbsp;**Internet: <br>www.investorelections.com/KEX**<br>![img212121408_5.jpg](img212121408_5.jpg)<br>**Call:**<br>**1-866-648-8133**<br>![img212121408_6.jpg](img212121408_6.jpg)<br>**Email: <br>paper@investorelections.com**<br>\* If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located below) in the subject line. No other requests, instructions OR other inquiries should be included with your e-mail requesting material. |
| **To vote your proxy while visiting this site, you will need the 12 digit control number in the box below.** | ![img212121408_3.jpg](img212121408_3.jpg) | &nbsp;&nbsp;&nbsp;&nbsp;**Internet: <br>www.investorelections.com/KEX**<br>![img212121408_5.jpg](img212121408_5.jpg)<br>**Call:**<br>**1-866-648-8133**<br>![img212121408_6.jpg](img212121408_6.jpg)<br>**Email: <br>paper@investorelections.com**<br>\* If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located below) in the subject line. No other requests, instructions OR other inquiries should be included with your e-mail requesting material. |
| This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. This is not a ballot. You cannot use this notice to vote your shares. We encourage you to access and review all of the important information contained in the proxy materials before voting. | ![img212121408_3.jpg](img212121408_3.jpg) | &nbsp;&nbsp;&nbsp;&nbsp;**Internet: <br>www.investorelections.com/KEX**<br>![img212121408_5.jpg](img212121408_5.jpg)<br>**Call:**<br>**1-866-648-8133**<br>![img212121408_6.jpg](img212121408_6.jpg)<br>**Email: <br>paper@investorelections.com**<br>\* If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located below) in the subject line. No other requests, instructions OR other inquiries should be included with your e-mail requesting material. |
| Under United States Securities and Exchange Commission rules, proxy materials do not have to be delivered in paper. Proxy materials can be distributed by making them available on the internet. | ![img212121408_3.jpg](img212121408_3.jpg) | &nbsp;&nbsp;&nbsp;&nbsp;**Internet: <br>www.investorelections.com/KEX**<br>![img212121408_5.jpg](img212121408_5.jpg)<br>**Call:**<br>**1-866-648-8133**<br>![img212121408_6.jpg](img212121408_6.jpg)<br>**Email: <br>paper@investorelections.com**<br>\* If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located below) in the subject line. No other requests, instructions OR other inquiries should be included with your e-mail requesting material. |
|  | ![img212121408_3.jpg](img212121408_3.jpg) | &nbsp;&nbsp;&nbsp;&nbsp;**Internet: <br>www.investorelections.com/KEX**<br>![img212121408_5.jpg](img212121408_5.jpg)<br>**Call:**<br>**1-866-648-8133**<br>![img212121408_6.jpg](img212121408_6.jpg)<br>**Email: <br>paper@investorelections.com**<br>\* If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located below) in the subject line. No other requests, instructions OR other inquiries should be included with your e-mail requesting material. |
| If you want to receive a paper or e-mail copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year's meeting, you must make this request on or before April 17, 2026. | ![img212121408_3.jpg](img212121408_3.jpg) | ![img212121408_7.jpg](img212121408_7.jpg) |
| If you want to receive a paper or e-mail copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year's meeting, you must make this request on or before April 17, 2026. |  | ![img212121408_7.jpg](img212121408_7.jpg) |
|  |  | Have the 12 digit control number located in the box above available when you access the website and follow the instructions. |
| **SEE REVERSE SIDE FOR FULL AGENDA** |  |  |

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Copyright© 2026 BetaNXT, Inc. or its affiliates. All Rights Reserved

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| | |
|:---|:---|
| ![img212121408_8.jpg](img212121408_8.jpg) | **Kirby Corporation Annual Meeting of Stockholders**<br>|
| **THE BOARD OF DIRECTORS RECOMMENDS A VOTE:** <br>**FOR** ON PROPOSALS 1, 2, 3, 4 AND 5 |  |

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| | |
|:---|:---|
|  | **PROPOSAL** |
| 1. | Election of three Class I directors |
|  | 1.01 Richard J. Alario |
|  | 1.02 Tracy A. Embree |
|  | 1.03 David W. Grzebinski |
| 2. | Ratification of the Audit Committee's selection of KPMG LLP as Kirby's independent registered public accounting firm for 2026 |
| 3. | Advisory vote on the approval of the compensation of Kirby's named executive officers |
| 4. | Approval of Amendment of the 2005 Stock and Incentive Plan |
| 5. | Approval of Amendment of the 2000 Nonemployee Director Stock Plan |

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