SEC ownership of KIRBY CORP

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000056047.

Comparable stake leader

VANGUARD CAPITAL MANAGEMENT LLC

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

04 May 2026

Top shareholders Insider holders Latest transactions

Public ticker: KEX on NYSE
Parsed ownership sources: 13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder: VANGUARD CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
Comparable ownership rows: 50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder: VANGUARD CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date: 04 May 2026
Freshness: Most recent filing date in this holder set
Issuer CIK: 0000056047
Issuer location: Houston, TX

Ownership snapshot

Top shareholders of KIRBY CORP (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

VANGUARD CAPITAL MANAGEME...

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

04 May 2026

13D/G 13F 3/4/5 Lead comparable stake: 5.2% 13D/G row: VANGUARD CAPITAL MANAGEMENT LLC Showing 1-8 of 50 holder rows.

Quick read

VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 5.2%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.

Comparable ownership Top 5

VANGUARD CAPITAL MANAGEMENT LLC 5.2%

GOLDMAN SACHS ASSET MANAGEMENT, L.P. 5.1%

MORGAN STANLEY 4.7%

Neuberger Berman Group LLC 4.5%

Barry E. Davis 0.09%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
VANGUARD CAPITAL MANAGEMENT LLC	13D/G 13F Vanguard Capital Management · Company 13D/G 13F	5.2%	$369,073,004 2,777,491 shares	$0	31 Mar 2026
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	13D/G 13D/G	5.1%	$381,702,731 2,719,068 shares	$0	31 Mar 2026
MORGAN STANLEY	13F 13D/G Company 13F 13D/G	4.7% from 13D/G	$354,811,698 2,670,163 shares	—	31 Mar 2026
Neuberger Berman Group LLC	13D/G 13F Company 13D/G 13F	4.5%	$246,879,899 2,555,428 shares	$0	28 Feb 2025
Barry E. Davis	3/4/5 Director 3/4/5	0.09%	$6,033,641 47,115 shares	-$1,089,765	04 May 2026
Anne-Marie Ainsworth	3/4/5 Director 3/4/5	0.06%	$4,023,606 30,280 shares	—	04 May 2026
Tanya S. Beder	3/4/5 Director 3/4/5	0.04%	$2,566,311 19,313 shares	—	04 May 2026
Richard Ross Stewart	3/4/5 Director 3/4/5	0.03%	$1,670,071 15,488 shares	-$207,357	10 Nov 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$19,099,518.

Buys

Insiders: 0

Sells

$19,099,518

Insiders: 10

Net

-$19,099,518

Shares: -154,813

Window

Last 12 months

4 rolling buckets

Buy value Sell value

Shares: 0 Shares: 154,813

Window (months)	Sell shares	Buy value	Sell value	Net value
0-3	17,691	$0	$2,579,036	-$2,579,036
3-6	79,975	$0	$10,315,938	-$10,315,938
6-9	57,147	$0	$6,204,544	-$6,204,544
9-12	0	$0	$0	$0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 28 reporting-owner rows connected to KIRBY CORP. Open a relationship link for the CIK-to-CIK filing trail.

Rows

Largest Forms 3/4/5 holder

William M. Waterman

Net 12M change

-$19,099,520

Latest report

15 May 2026

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
William M. Waterman	Director	$22,198,444			Mixed	04 May 2026
David W. Grzebinski	CEO, Director	$14,984,933	-$7,604,800	-34%	Mixed	24 Feb 2026
J. H. Pyne	Director	$9,547,060			Mixed	01 May 2023
Richard J. Alario	Director	$6,877,851			Mixed	04 May 2026
Barry E. Davis	Director	$6,033,641	-$1,089,765	-15%	Mixed	04 May 2026
C. Sean Day	Director	$5,717,058			Mixed	28 Mar 2022
Anne-Marie Ainsworth	Director	$4,023,606			Median	04 May 2026
Tanya S. Beder	Director	$2,566,311			Median	04 May 2026
Dorman Lynn Strahan	President-Kirby Engine Systems	$2,411,265			Mixed	10 May 2024
William G. Harvey	Exec VP Finance	$2,090,965			Mixed	24 Jan 2022
Amy D. Husted	Exec VP General Counsel & Sec	$2,063,381	-$3,209,178	-61%	Mixed	15 May 2026
Shawn D. Williams	Director	$1,817,266			Median	04 May 2026
Richard Ross Stewart	Director	$1,670,071	-$207,357	-11%	Filing P/S	10 Nov 2025
Ronald A. Dragg	Vice President and Controller	$1,557,669	-$1,212,063	-44%	Mixed	04 May 2026
Raj Kumar	Exec VP and CFO	$1,234,372	-$398,100	-24%	Mixed	02 Mar 2026
Christian G. O'Neil	President and COO	$1,227,289	-$4,385,507	-78%	Mixed	15 May 2026
Susan Leslie Dio	Director	$1,143,698			Median	04 May 2026
Joseph H. Reniers	President-Kirby Distribution	$1,109,394			Mixed	07 Mar 2022
Kim B. Clarke	VP and Chief HR Officer	$873,697			Mixed	13 Feb 2023
Scott P. Miller	Vp Cio	$798,250	-$477,893	-37%	Mixed	10 Feb 2026

Recent insider transactions for KIRBY CORP

Showing up to 300 recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	SEC-reported value	SEC-reported price	Shares	Shares owned	Date	Ownership
William Matthew Woodruff	KEX	Common Stock, par value $0.10 per share	Sale	-98.7%	$99,917	$147.37	-678	9	15 May 2026	Direct
Christian G. O'Neil	KEX	Common Stock, par value $0.10 per share	Sale	-100%	$1,647,112	$145.93	-11,287	0	15 May 2026	Direct
Amy D. Husted	KEX	Common Stock, par value $0.10 per share	Sale	-27%	$581,720	$145.43	-4,000	10,814	15 May 2026	Direct
Shawn D. Williams	KEX	Common Stock, par value $0.10 per share	Award	11.3%			1,392	13,676	04 May 2026	Direct
William M. Waterman	KEX	Common Stock, par value $0.10 per share	Award	3.55%			1,392	40,630	04 May 2026	Direct
Tracy A. Embree	KEX	Common Stock, par value $0.10 per share	Award	362.5%			1,392	1,776	04 May 2026	Direct
Susan Leslie Dio	KEX	Common Stock, par value $0.10 per share	Award	19.3%			1,392	8,607	04 May 2026	Direct
Barry E. Davis	KEX	Common Stock, par value $0.10 per share	Award	3.9%			1,392	37,115	04 May 2026	Direct
Tanya S. Beder	KEX	Common Stock, par value $0.10 per share	Award	7.77%			1,392	19,313	04 May 2026	Direct
Richard J. Alario	KEX	Common Stock, par value $0.10 per share	Award	5.11%			1,392	28,632	04 May 2026	Direct
Anne-Marie Ainsworth	KEX	Common Stock, par value $0.10 per share	Award	4.82%			1,392	30,280	04 May 2026	Direct
Ronald A. Dragg	KEX	Common Stock, par value $0.10 per share	Sale	-16.6%	$250,287	$145.01	-1,726	8,673	04 May 2026	Direct
Christian G. O'Neil	KEX	Common Stock, par value $0.10 per share	Sale	-50%	$1,493,722	$132.34	-11,287	11,287	02 Mar 2026	Direct
Raj Kumar	KEX	Common Stock, par value $0.10 per share	Sale	-40%	$398,100	$132.70	-3,000	4,494	02 Mar 2026	Direct
David W. Grzebinski	KEX	Common Stock, par value $0.10 per share	Sale	-25.8%	$4,441,468	$130.05	-34,152	98,241	24 Feb 2026	Direct
David W. Grzebinski	KEX	Common Stock, par value $0.10 per share	Options Exercise	34.8%			34,152	132,393	24 Feb 2026	Direct
David W. Grzebinski	KEX	Employee Stock Options (Right to Buy)	Options Exercise	-100%			-34,152	0	24 Feb 2026	Direct
Tracy A. Embree	KEX	Common Stock, par value $0.10 per share	Award				384	384	20 Feb 2026	Direct
Matthew P. Kerin	KEX	Restricted Stock Units	Award				2,530	2,530	20 Feb 2026	Direct
Amy D. Husted	KEX	Common Stock, par value $0.10 per share	Sale	-44.1%	$1,508,893	$129.33	-11,667	14,814	20 Feb 2026	Direct
Amy D. Husted	KEX	Common Stock, par value $0.10 per share	Options Exercise	48.6%			8,667	26,481	20 Feb 2026	Direct
Amy D. Husted	KEX	Employee Stock Options (Right to Buy)	Options Exercise	-100%			-8,667	0	20 Feb 2026	Direct
Barry E. Davis	KEX	Common Stock, par value $0.10 per share	Sale	-19.2%	$1,089,765	$128.51	-8,480	35,723	19 Feb 2026	Direct
Barry E. Davis	KEX	Common Stock, par value $0.10 per share	Options Exercise	23.7%			8,480	44,203	19 Feb 2026	Direct
Barry E. Davis	KEX	Director Stock Options (Right to Buy	Options Exercise	-100%			-8,480	0	19 Feb 2026	Direct
Jennifer N. McCauley	KEX	Common Stock, par value $0.10 per share	Tax liability	-39.2%			-366	568	14 Feb 2026	Direct
Jennifer N. McCauley	KEX	Common Stock, par value $0.10 per share	Options Exercise				934	934	14 Feb 2026	Direct
Jennifer N. McCauley	KEX	Restricted Stock Units	Options Exercise	-20%			-934	3,736	14 Feb 2026	Direct
Scott P. Miller	KEX	Common Stock, par value $0.10 per share	Sale	-52.6%	$477,893	$120.68	-3,960	3,565	10 Feb 2026	Direct
William Matthew Woodruff	KEX	Common Stock, par value $0.10 per share	Sale	-74.4%	$243,760	$121.88	-2,000	687	09 Feb 2026	Direct
Ronald A. Dragg	KEX	Common Stock, par value $0.10 per share	Sale	-34.3%	$662,338	$122.00	-5,429	10,399	04 Feb 2026	Direct
Ronald A. Dragg	KEX	Common Stock, par value $0.10 per share	Options Exercise	21.4%			2,787	15,828	04 Feb 2026	Direct
Ronald A. Dragg	KEX	Employee Stock Options (Right to Buy)	Options Exercise	-100%			-2,787	0	04 Feb 2026	Direct
Kurt A. Niemietz	KEX	Common Stock, par value $0.10 per share	Tax liability	-24%			-693	2,194	03 Feb 2026	Direct
Kurt A. Niemietz	KEX	Common Stock, par value $0.10 per share	Options Exercise	134.5%			1,656	2,887	03 Feb 2026	Direct
Kurt A. Niemietz	KEX	Restricted Stock Units	Options Exercise	-78.4%			-1,656	455	03 Feb 2026	Direct
Raj Kumar	KEX	Common Stock, par value $0.10 per share	Tax liability	-22.8%			-2,208	7,494	03 Feb 2026	Direct
Raj Kumar	KEX	Common Stock, par value $0.10 per share	Options Exercise	128.6%			5,458	9,702	03 Feb 2026	Direct
Raj Kumar	KEX	Restricted Stock Units	Options Exercise	-79%			-5,458	1,455	03 Feb 2026	Direct
William Matthew Woodruff	KEX	Common Stock, par value $0.10 per share	Tax liability	-15%			-475	2,687	03 Feb 2026	Direct
William Matthew Woodruff	KEX	Common Stock, par value $0.10 per share	Options Exercise	54%			1,109	3,162	03 Feb 2026	Direct
William Matthew Woodruff	KEX	Restricted Stock Units	Options Exercise	-78.5%			-1,109	303	03 Feb 2026	Direct
Scott P. Miller	KEX	Common Stock, par value $0.10 per share	Tax liability	-14.8%			-1,311	7,525	03 Feb 2026	Direct
Scott P. Miller	KEX	Common Stock, par value $0.10 per share	Options Exercise	155.3%			5,375	8,836	03 Feb 2026	Direct
Scott P. Miller	KEX	Restricted Stock Units	Options Exercise	-77.2%			-5,375	1,591	03 Feb 2026	Direct
Christian G. O'Neil	KEX	Common Stock, par value $0.10 per share	Tax liability	-15.1%			-4,011	22,574	03 Feb 2026	Direct
Christian G. O'Neil	KEX	Common Stock, par value $0.10 per share	Options Exercise	62.1%			10,188	26,585	03 Feb 2026	Direct
Christian G. O'Neil	KEX	Restricted Stock Units	Options Exercise	-78.9%			-10,188	2,728	03 Feb 2026	Direct
David W. Grzebinski	KEX	Common Stock, par value $0.10 per share	Tax liability	-8.26%			-8,844	98,241	03 Feb 2026	Direct
David W. Grzebinski	KEX	Common Stock, par value $0.10 per share	Options Exercise	26.6%			22,470	107,085	03 Feb 2026	Direct

^* marks a reported price that did not pass the local price check.