Vault-13

KIRBY CORP KEX

COM · Common Stock · CUSIP 497266106 · ISIN US4972661064

Maritime equipment corporation

260 institutional holders
57,662,90457.7m shares reported held*
96.3% of all shares outstanding*
$3.5bnreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($9.7m this quarter). Holder counts are more reliable. Shares outstanding: 59.9m as of 2022-11-03, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $60.81. Options: 5 managers hold calls ($753.0k notional), 4 hold puts ($1.0m).

Biggest calls

CITADEL ADVISORS LLC — $237.0k3.9k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $225.0k3.7k shares
PEAK6 Investments LLC — $194.0k3.2k shares
SIMPLEX TRADING, LLC — $97.0k1.6k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares

Biggest puts

PEAK6 Investments LLC — $510.0k8.4k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $267.0k4.4k shares
CITADEL ADVISORS LLC — $243.0k4.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
DIMENSIONAL FUND ADVISORS LP 13G · institution new · filed 2026-07-14 5.2% new 2.8m≈ $375.3m 2026-07-14
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 5.2% new 2.8m≈ $377.7m 2026-04-30
VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-07-31 5.0% new 2.7m≈ $366.5m 2026-07-31

Fell to 5% or below in the last year: GOLDMAN SACHS ASSET MANAGEMENT, L.P. (4.4%, 2026-08-14), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC), MORGAN STANLEY (4.7%, 2026-02-12)

Insider purchases and sales in Q3 2022

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
10010Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 1 buyingQ4 21: 3 sellingQ1 22: 0 buyingQ1 22: 8 sellingQ1 22Q2 22: 0 buyingQ2 22: 1 sellingQ3 22: 0 buyingQ3 22: 0 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20211$528.8k3$387.7k—
Q1 20220—8$4.1m—
Q2 20220—1$40.7k—
Q3 20220—0——

None reported in Q3 2022.

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 5,616,0095.6m $341.3m $341.3m 0.01% —
2 BlackRock Inc. 0.01% of their portfolio New York, NY 5,016,0455.0m $304.8m $304.8m 0.01% —
3 ATLANTA CAPITAL MANAGEMENT CO L L C 1.06% of their portfolio ATLANTA, GA 3,905,1353.9m $237.3m $237.3m 1.06% —
4 NEUBERGER BERMAN GROUP LLC 0.22% of their portfolio NEW YORK, NY 3,407,0113.4m $207.0m $207.0m 0.22% —
5 DIMENSIONAL FUND ADVISORS LP 0.05% of their portfolio AUSTIN, TX 2,226,2212.2m $135.3m $135.3m 0.05% —
6 WELLINGTON MANAGEMENT GROUP LLP 0.03% of their portfolio Boston, MA 2,107,9612.1m $128.1m $128.1m 0.03% —
7 KING LUTHER CAPITAL MANAGEMENT CORP 0.74% of their portfolio FORT WORTH, TX 2,026,6692.0m $123.2m $123.2m 0.74% —
8 Diamond Hill Capital Management, LLC (Investment Advisor) 0.53% of their portfolio COLUMBUS, OH 1,818,0831.8m $110.5m $110.5m 0.53% —
9 MACQUARIE GROUP LTD 0.13% of their portfolio Sydney, NSW 2000, C3 1,798,3591.8m $109.3m $109.3m 0.13% —
10 ALLIANCEBERNSTEIN L.P. 0.05% of their portfolio NASHVILLE, TN 1,759,0581.8m $106.9m $106.9m 0.05% —
11 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 1,649,4301.6m $100.2m $100.2m 0.01% —
12 ArrowMark Colorado Holdings LLC 1.14% of their portfolio Denver, CO 1,534,2481.5m $93.2m $93.2m 1.14% —
13 FMR LLC 0.01% of their portfolio BOSTON, MA 957,021957.0k $58.2m $58.2m 0.01% —
14 CRAMER ROSENTHAL MCGLYNN LLC 2.72% of their portfolio STAMFORD, CT 934,238934.2k $56.8m $56.8m 2.72% —
15 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 847,054847.1k $51.5m $51.5m 0.01% —
16 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 771,468771.5k $46.9m $46.9m 0.01% —
17 BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.18% of their portfolio DALLAS, TX 723,467723.5k $44.0m $44.0m 0.18% —
18 Nuveen Asset Management, LLC 0.02% of their portfolio CHICAGO, IL 699,134699.1k $42.5m $42.5m 0.02% —
19 BANK OF AMERICA CORP /DE/ 0.01% of their portfolio CHARLOTTE, NC 648,627648.6k $39.4m $39.4m 0.01% —
20 JENNISON ASSOCIATES LLC 0.04% of their portfolio NEW YORK, NY 637,851637.9k $38.8m $38.8m 0.04% —
21 SCHRODER INVESTMENT MANAGEMENT GROUP 0.06% of their portfolio London, X0 631,785631.8k $38.4m $38.4m 0.06% —
22 JCP Investment Management, LLC 26.97% of their portfolio HOUSTON, TX 625,494625.5k $38.0m $38.0m 26.97% —
23 GOLDMAN SACHS GROUP INC 0.01% of their portfolio NEW YORK, NY 622,199622.2k $37.8m $37.8m 0.01% —
24 Hood River Capital Management LLC 1.40% of their portfolio PALM BEACH GARDENS, FL 602,003602.0k $36.6m $36.6m 1.40% —
25 D. E. Shaw & Co., Inc. 0.06% of their portfolio New York, NY 575,343575.3k $35.0m $35.0m 0.06% —
26 VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.50% of their portfolio HOUSTON, TX 567,045567.0k $34.5m $34.5m 0.50% —
27 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 565,801565.8k $34.4m $34.4m 0.01% —
28 NORGES BANK 0.01% of their portfolio OSLO, Q8 551,436551.4k $33.5m $33.5m 0.01% —
29 AMERIPRISE FINANCIAL INC 0.01% of their portfolio MINNEAPOLIS, MN 533,488533.5k $33.1m $33.1m 0.01% —
30 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 531,290531.3k $32.3m $32.3m 0.01% —
31 Hound Partners, LLC 6.09% of their portfolio NEW YORK, NY 528,165528.2k $32.1m $32.1m 6.09% —
32 JANUS HENDERSON GROUP PLC 0.01% of their portfolio LONDON, X0 522,194522.2k $31.7m $31.7m 0.01% —
33 VICTORY CAPITAL MANAGEMENT INC 0.03% of their portfolio San Antonio, TX 481,670481.7k $29.3m $29.3m 0.03% —
34 VAN ECK ASSOCIATES CORP 0.08% of their portfolio NEW YORK, NY 454,110454.1k $27.6m $27.6m 0.08% —
35 PRIMECAP MANAGEMENT CO/CA/ 0.02% of their portfolio PASADENA, CA 416,700416.7k $25.3m $25.3m 0.02% —
36 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 415,256415.3k $25.2m $25.2m 0.00% —
37 CITADEL ADVISORS LLC 0.03% of their portfolio MIAMI, FL 398,570398.6k $24.2m $24.2m 0.03% —
38 Russell Investments Group, Ltd. 0.05% of their portfolio Seattle, WA 372,702372.7k $22.6m $22.6m 0.05% —
39 KENNEDY CAPITAL MANAGEMENT LLC 0.58% of their portfolio ST LOUIS, MO 324,191324.2k $19.7m $19.7m 0.58% —
40 VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio ATLANTA, GA 321,504321.5k $19.5m $19.5m 0.02% —
41 Encompass Capital Advisors LLC 1.12% of their portfolio New York, NY 317,473317.5k $19.3m $19.3m 1.12% —
42 MARSHALL WACE, LLP 0.05% of their portfolio LONDON, X0 304,632304.6k $18.5m $18.5m 0.05% —
43 MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio NEW YORK, NY 272,166272.2k $16.5m $16.5m 0.02% —
44 PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio DES MOINES, IA 233,513233.5k $14.2m $14.2m 0.01% —
45 Penn Capital Management Company, LLC 1.45% of their portfolio PHILADELPHIA, PA 212,255212.3k $13.0m $13.0m 1.45% —
46 ROYCE & ASSOCIATES LP 0.14% of their portfolio New York, NY 202,924202.9k $12.3m $12.3m 0.14% —
47 J. Goldman & Co LP 0.92% of their portfolio NEW YORK, NY 202,371202.4k $12.3m $12.3m 0.92% —
48 LATHROP INVESTMENT MANAGEMENT CO 3.15% of their portfolio LITTLE ROCK, AR 196,140196.1k $11.9m $11.9m 3.15% —
49 Sapience Investments, LLC 2.50% of their portfolio Irvine, CA 195,817195.8k $11.9m $11.9m 2.50% —
50 Amundi 0.01% of their portfolio Paris, I0 192,757192.8k $12.9m $12.9m 0.01% —
51 NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio ALBANY, NY 192,072192.1k $11.7m $11.7m 0.02% —
52 StackLine Partners LP 8.53% of their portfolio NEW YORK, NY 188,652188.7k $11.5m $11.5m 8.53% —
53 RHUMBLINE ADVISERS 0.02% of their portfolio BOSTON, MA 184,007184.0k $11.2m $11.2m 0.02% —
54 Thrivent Financial for Lutherans 0.03% of their portfolio Minneapolis, MN 179,180179.2k $10.9m $10.9m 0.03% —
55 MUHLENKAMP & CO INC 4.47% of their portfolio WEXFORD, PA 164,549164.5k $10.0m $10.0m 4.47% —
56 GUGGENHEIM CAPITAL LLC 0.09% of their portfolio CHICAGO, IL 155,527155.5k $9.5m $9.5m 0.09% —
57 Driehaus Capital Management LLC 0.14% of their portfolio Chicago, IL 153,322153.3k $9.3m $9.3m 0.14% —
58 THOMPSON SIEGEL & WALMSLEY LLC 0.16% of their portfolio RICHMOND, VA 148,154148.2k $9.0m $9.0m 0.16% —
59 California Public Employees Retirement System 0.01% of their portfolio Sacramento, CA 137,212137.2k $8.3m $8.3m 0.01% —
60 Legal & General Group Plc 0.00% of their portfolio London, X0 136,960137.0k $8.3m $8.3m 0.00% —
61 FRONTIER CAPITAL MANAGEMENT CO LLC 0.10% of their portfolio Boston, MA 134,353134.4k $8.2m $8.2m 0.10% —
62 Advantage Alpha Capital Partners LP 1.46% of their portfolio SAN FRANCISCO, CA 130,863130.9k $8.0m $8.0m 1.46% —
63 Ziegler Capital Management, LLC 0.35% of their portfolio CHICAGO, IL 130,765130.8k $7.9m $7.9m 0.35% —
64 Mesirow Institutional Investment Management, Inc. 1.13% of their portfolio CHICAGO, IL 128,625128.6k $7.8m $7.8m 1.13% —
65 VELA Investment Management, LLC 4.29% of their portfolio NEW ALBANY, OH 124,604124.6k $7.6m $7.6m 4.29% —
66 FEDERATED HERMES, INC. 0.02% of their portfolio PITTSBURGH, PA 121,414121.4k $7.4m $7.4m 0.02% —
67 Brandywine Global Investment Management, LLC 0.07% of their portfolio PHILADELPHIA, PA 115,837115.8k $7.0m $7.0m 0.07% —
68 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 114,342114.3k $6.9m $6.9m 0.00% —
69 Yaupon Capital Management LP 2.32% of their portfolio NEW YORK, NY 113,700113.7k $6.9m $6.9m 2.32% —
70 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 107,252107.3k $6.5m $6.5m 0.00% —
71 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.03% of their portfolio COLUMBUS, OH 98,83898.8k $6.0m $6.0m 0.03% —
72 AMERICAN INTERNATIONAL GROUP, INC. 0.04% of their portfolio New York, NY 94,52594.5k $5.7m $5.7m 0.04% —
73 HEARTLAND ADVISORS INC 0.42% of their portfolio MILWAUKEE, WI 92,67192.7k $5.6m $5.6m 0.42% —
74 Granite Investment Partners, LLC 0.24% of their portfolio EL SEGUNDO, CA 91,90591.9k $5.6m $5.6m 0.24% —
75 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio ALBANY, NY 84,34284.3k $5.1m $5.1m 0.01% —
76 Retirement Systems of Alabama 0.02% of their portfolio MONTGOMERY, AL 78,42078.4k $4.8m $4.8m 0.02% —
77 North Star Investment Management Corp. 0.46% of their portfolio CHICAGO, IL 77,80077.8k $4.7m $4.7m 0.46% —
78 Allspring Global Investments Holdings, LLC 0.01% of their portfolio CHARLOTTE, NC 74,63474.6k $4.5m $4.5m 0.01% —
79 PRELUDE CAPITAL MANAGEMENT, LLC 0.22% of their portfolio NEW YORK, NY 73,73173.7k $4.5m $4.5m 0.22% —
80 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.02% of their portfolio TORONTO, A6 73,40073.4k $4.5m $4.5m 0.02% —
81 AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio Greenwich, CT 70,40270.4k $4.3m $4.3m 0.01% —
82 Boston Partners 0.01% of their portfolio BOSTON, MA 69,55469.6k $4.2m $4.2m 0.01% —
83 Clear Sky Carbon Solutions Investment Management, LLC 2.32% of their portfolio BELLAIRE, TX 64,00064.0k $3.9m $3.9m 2.32% —
84 SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.06% of their portfolio BALA CYNWYD, PA 62,75062.8k $3.8m $3.8m 0.06% —
85 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio TALLAHASSEE, FL 60,09660.1k $3.7m $3.7m 0.01% —
86 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 59,79959.8k $4.1m $4.1m 0.00% —
87 Hudson Bay Capital Management LP 0.04% of their portfolio STAMFORD, CT 58,00058.0k $3.5m $3.5m 0.04% —
88 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 53,61553.6k $3.3m $3.3m 0.00% —
89 State of Tennessee, Department of Treasury 0.02% of their portfolio NASHVILLE, TN 52,78852.8k $3.2m $3.2m 0.02% —
90 NATIXIS ADVISORS, LLC 0.01% of their portfolio Boston, MA 49,13949.1k $3.0m $3.0m 0.01% —
91 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 48,71448.7k $3.0m $3.0m 0.00% —
92 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.04% of their portfolio New York, NY 48,12948.1k $2.9m $2.9m 0.04% —
93 SEI INVESTMENTS CO 0.01% of their portfolio OAKS, PA 48,11648.1k $2.9m $2.9m 0.01% —
94 HANTZ FINANCIAL SERVICES, INC. 0.10% of their portfolio SOUTHFIELD, MI 45,53845.5k $2.8m $2.8m 0.10% —
95 HOURGLASS CAPITAL, LLC 1.05% of their portfolio HOUSTON, TX 45,38545.4k $2.8m $2.8m 1.05% —
96 BESSEMER GROUP INC 0.01% of their portfolio WOODBRIDGE, NJ 44,09944.1k $2.7m $2.7m 0.01% —
97 TEXAS PERMANENT SCHOOL FUND CORP 0.04% of their portfolio AUSTIN, TX 43,08243.1k $2.6m $2.6m 0.04% —
98 AMALGAMATED BANK 0.03% of their portfolio NEW YORK, NY 42,83942.8k $2.6m $2.6m 0.03% —
99 Stanley-Laman Group, Ltd. 0.48% of their portfolio Berwyn, PA 41,45041.5k $2.5m $2.5m 0.48% —
100 MetLife Investment Management, LLC 0.02% of their portfolio Whippany, NJ 38,46438.5k $2.3m $2.3m 0.02% —