KIRBY CORP KEX
COM · Common Stock · CUSIP 497266106 · ISIN US4972661064
Maritime equipment corporation
- SectorIndustrials
- IndustryWater Transportation
- HeadquartersHouston, TX
- Founded1921
- Websitekirbycorp.com
- FilingsSEC EDGAR
* 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 ($19.6m this quarter). Holder counts are more reliable. Shares outstanding: 52.8m as of 2026-08-04, 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 ≈ $135.94. Options: 2 managers hold calls ($6.0m notional), 1 hold puts ($244.7k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 260 |
| Q4 2022 | 285 |
| Q1 2023 | 286 |
| Q2 2023 | 283 |
| Q3 2023 | 315 |
| Q4 2023 | 316 |
| Q1 2024 | 329 |
| Q2 2024 | 404 |
| Q3 2024 | 409 |
| Q4 2024 | 431 |
| Q1 2025 | 413 |
| Q2 2025 | 410 |
| Q3 2025 | 400 |
| Q4 2025 | 413 |
| Q1 2026 | 435 |
| Q2 2026 | 466 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 196 | 191 |
| Q4 2024 | 194 | 191 |
| Q1 2025 | 211 | 205 |
| Q2 2025 | 213 | 190 |
| Q3 2025 | 203 | 214 |
| Q4 2025 | 172 | 235 |
| Q1 2026 | 236 | 194 |
| Q2 2026 | 242 | 189 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $2.2m | $2.7m | 1.22 |
| Q4 2025 | $1.4m | $595.0k | 0.41 |
| Q1 2026 | $8.8m | $2.2m | 0.24 |
| Q2 2026 | $6.0m | $244.7k | 0.04 |
Biggest buyers
| D. E. Shaw & Co., Inc. | Added | +503.2k |
| Invesco Ltd. | Added | +466.0k |
| AQR CAPITAL MANAGEMENT LLC | Added | +349.6k |
| JPMORGAN CHASE & CO | Added | +328.4k |
| Assenagon Asset Management S.A. | Added | +259.2k |
| MACKENZIE FINANCIAL CORP | Added | +220.9k |
| FIRST TRUST ADVISORS LP | Added | +214.2k |
| Boston Partners | New | +207.4k |
| HRT FINANCIAL LP | Added | +176.8k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +168.4k |
Biggest sellers
| NEUBERGER BERMAN GROUP LLC | Reduced | -473.2k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -425.4k |
| ArrowMark Colorado Holdings LLC | Reduced | -308.1k |
| CITADEL ADVISORS LLC | Reduced | -287.6k |
| CAPSTONE INVESTMENT ADVISORS, LLC | Reduced | -257.7k |
| MORGAN STANLEY | Reduced | -237.5k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -234.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -228.9k |
| VAN ECK ASSOCIATES CORP | Sold out | -224.5k |
| Park West Asset Management LLC | Sold out | -212.5k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $3.2m23.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.8m20.9k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $244.7k1.8k 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.
| Holder | Stake |
|---|---|
| DIMENSIONAL FUND ADVISORS LP 13G · institution new · filed 2026-07-14 | 5.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-07-31 | 5.0% |
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 since 1 Apr 2026
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)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 4 | $8.5m | — |
| Q1 2025 | 0 | — | 1 | $520.3k | $520.3k |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 6 | $6.2m | — |
| Q1 2026 | 0 | — | 8 | $10.3m | — |
| Q2 2026 | 0 | — | 4 | $2.6m | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-05-15 | O'Neil Christian G. President and COO | Sold | $1.6m11.3k shares |
| 2026-05-15 | Husted Amy D. Exec VP General Counsel & Sec | Sold | $581.7k4.0k shares |
| 2026-05-15 | Woodruff William Matthew VP of Public and Govt Affairs | Sold | $99.9k678 shares |
| 2026-05-04 | DRAGG RONALD A Vice President and Controller | Sold | $250.3k1.7k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 5.4m $733.3m | Added +115.8k |
| DIMENSIONAL FUND ADVISORS LP 0.07% of their portfolio | 2.8m $375.3m | Added +142.3k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.02% of their portfolio | 2.7m $365.7m | Added +28.5k |
| GOLDMAN SACHS GROUP INC 0.04% of their portfolio | 2.7m $361.1m | Reduced -172.0k |
| MORGAN STANLEY 0.02% of their portfolio | 2.4m $330.8m | Reduced -237.5k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 2.4m $328.5m | Added +8.2k |
| STATE STREET CORP 0.01% of their portfolio | 1.6m $224.1m | Added +9.3k |
| FIRST TRUST ADVISORS LP 0.13% of their portfolio | 1.6m $220.1m | Added +214.2k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.81% of their portfolio | 1.5m $198.2m | Reduced -102.9k |
| NEUBERGER BERMAN GROUP LLC 0.11% of their portfolio | 1.3m $171.6m | Reduced -473.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.2m $161.9m | Added +168.4k |
| WELLINGTON MANAGEMENT GROUP LLP 0.03% of their portfolio | 1.2m $156.4m | Reduced -425.4k |
| AMERICAN CENTURY COMPANIES INC 0.06% of their portfolio | 936.1k $127.3m | Added +7.4k |
| FMR LLC 0.01% of their portfolio | 917.7k $124.8m | Added +123.1k |
| AQR CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 883.8k $120.2m | Added +349.6k |
| ALLIANCEBERNSTEIN L.P. 0.04% of their portfolio | 881.6k $117.2m | Reduced -234.1k |
| JENNISON ASSOCIATES LLC 0.07% of their portfolio | 865.1k $117.6m | Added +107.1k |
| CONGRESS ASSET MANAGEMENT CO 0.59% of their portfolio | 703.7k $95.7m | Added +78.2k |
| NORGES BANK 0.01% of their portfolio | 683.9k $93.0m | Not comparable |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 677.3k $92.1m | Reduced -20.6k |
| D. E. Shaw & Co., Inc. 0.06% of their portfolio | 671.7k $91.3m | Added +503.2k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.84% of their portfolio | 666.6k $90.6m | Added +22.2k |
| Invesco Ltd. 0.01% of their portfolio | 573.9k $78.0m | Added +466.0k |
| Assenagon Asset Management S.A. 0.05% of their portfolio | 540.8k $73.5m | Added +259.2k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 539.9k $73.4m | Reduced -191.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 525.8k $72.6m | Added +328.4k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.21% of their portfolio | 510.1k $69.4m | Reduced -95.9k |
| Hood River Capital Management LLC 0.49% of their portfolio | 497.5k $67.6m | Added +33.2k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.10% of their portfolio | 489.9k $66.6m | Reduced -33.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 460.0k $62.5m | Added +114.4k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 448.4k $61.0m | Reduced -11.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 434.9k $59.1m | Added +93.9k |
| Qube Research & Technologies Ltd 0.06% of their portfolio | 416.8k $56.7m | Added +143.9k |
| Jupiter Topco LLC 0.02% of their portfolio | 395.0k $53.7m | First filing |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 338.2k $46.0m | Added +1.7k |
| CITADEL ADVISORS LLC 0.03% of their portfolio | 338.0k $46.0m | Reduced -287.6k |
| VICTORY CAPITAL MANAGEMENT INC 0.03% of their portfolio | 335.4k $45.6m | Added +59.7k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 330.8k $45.0m | Reduced -8.1k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 316.5k $43.0m | Reduced -21.3k |
| FIL Ltd 0.03% of their portfolio | 304.7k $41.4m | Added +85.2k |
| Select Equity Group, L.P. 0.22% of their portfolio | 304.1k $41.3m | Reduced -71.8k |
| 12th Street Asset Management Company, LLC 5.67% of their portfolio | 292.6k $39.8m | Added +1.4k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.03% of their portfolio | 283.5k $39.0m | Reduced -76.7k |
| Encompass Capital Advisors LLC 1.56% of their portfolio | 265.6k $36.1m | Reduced -204.0k |
| MACKENZIE FINANCIAL CORP 0.04% of their portfolio | 261.6k $35.6m | Added +220.9k |
| PRIMECAP MANAGEMENT CO/CA/ 0.02% of their portfolio | 253.4k $34.4m | Reduced -10.4k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 248.2k $33.7m | Added +26.5k |
| Boston Partners 0.03% of their portfolio | 207.4k $28.4m | New |
| Gotham Asset Management, LLC 0.06% of their portfolio | 202.0k $27.5m | Added +24.4k |
| HRT FINANCIAL LP 0.06% of their portfolio | 191.8k $26.1m | Added +176.8k |
| ATLANTIC INVESTMENT MANAGEMENT, INC. 13.22% of their portfolio | 186.7k $25.4m | Reduced -70.3k |
| FEDERATED HERMES, INC. 0.04% of their portfolio | 184.6k $25.1m | Reduced -17.2k |
| WESTWOOD HOLDINGS GROUP INC 0.19% of their portfolio | 181.6k $24.7m | Reduced -10.9k |
| DAVENPORT & Co LLC 0.12% of their portfolio | 179.5k $24.4m | Reduced -20.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 175.3k $23.8m | Added +8.5k |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 167.9k $22.8m | Reduced -150.5k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 165.6k $22.5m | Reduced -8.7k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 163.0k $22.2m | Added +25.4k |
| ArrowMark Colorado Holdings LLC 0.92% of their portfolio | 162.5k $22.1m | Reduced -308.1k |
| Allspring Global Investments Holdings, LLC 0.03% of their portfolio | 162.2k $21.2m | Reduced -57.2k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.06% of their portfolio | 148.6k $20.2m | Reduced -39.3k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 142.3k $19.4m | Reduced -2.6k |
| Point72 Asset Management, L.P. 0.03% of their portfolio | 139.4k $18.9m | Added +122.5k |
| Connor, Clark & Lunn Investment Management Ltd. 0.04% of their portfolio | 139.1k $18.9m | Reduced -15.9k |
| ALGERT GLOBAL LLC 0.22% of their portfolio | 135.9k $18.5m | Reduced -56.8k |
| LATHROP INVESTMENT MANAGEMENT CO 3.10% of their portfolio | 128.9k $17.5m | Reduced -1.4k |
| VELA Investment Management, LLC 4.29% of their portfolio | 128.4k $17.5m | Reduced -13.4k |
| California Public Employees Retirement System 0.01% of their portfolio | 121.3k $16.5m | Added +16.4k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 118.0k $16.0m | Reduced -47.1k |
| Nuveen, LLC 0.00% of their portfolio | 111.6k $15.2m | Added +9.3k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.48% of their portfolio | 108.7k $14.8m | Added +5.6k |
| Lodge Hill Capital, LLC 2.39% of their portfolio | 105.0k $14.3m | New |
| Man Group plc 0.03% of their portfolio | 104.7k $14.2m | Added +34.6k |
| BARCLAYS PLC 0.00% of their portfolio | 92.3k $12.5m | Added +54.0k |
| Retirement Systems of Alabama 0.04% of their portfolio | 90.4k $12.3m | Reduced -11.1k |
| Premier Fund Managers Ltd 1.09% of their portfolio | 87.3k $12.0m | Added +20.1k |
| Bridgewater Associates, LP 0.05% of their portfolio | 86.4k $11.7m | Reduced -44.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 85.5k $11.6m | Reduced -228.9k |
| ROYCE & ASSOCIATES LP 0.09% of their portfolio | 82.7k $11.2m | Reduced -19.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 77.9k $10.6m | Added +75 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.20% of their portfolio | 76.8k $10.4m | Added +69.5k |
| Thrivent Financial for Lutherans 0.02% of their portfolio | 76.6k $10.4m | Added +52.5k |
| Davidson Kempner Capital Management LP 0.16% of their portfolio | 75.0k $10.2m | Not comparable |
| UBS Group AG 0.00% of their portfolio | 74.1k $10.1m | Reduced -41.9k |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.10% of their portfolio | 67.5k $9.2m | Reduced -310 |
| Quantinno Capital Management LP 0.01% of their portfolio | 67.3k $9.2m | Added +27.9k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 66.7k $9.1m | Reduced -4.2k |
| TECTONIC ADVISORS LLC 0.43% of their portfolio | 65.9k $9.0m | Reduced -1.8k |
| HOURGLASS CAPITAL, LLC 1.74% of their portfolio | 65.2k $8.9m | Reduced -350 |
| Mariner, LLC 0.01% of their portfolio | 65.0k $8.8m | Added +9.9k |
| PICTON MAHONEY ASSET MANAGEMENT 0.08% of their portfolio | 62.0k $8.4m | Reduced -909 |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 61.6k $8.4m | Reduced -2.5k |
| FIFTH THIRD BANCORP 0.01% of their portfolio | 57.8k $7.9m | Added +8.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 56.4k $7.7m | Added +743 |
| STRS OHIO 0.03% of their portfolio | 55.4k $7.5m | Reduced -2.6k |
| Bellars Harris Wealth Management, LLC 1.53% of their portfolio | 55.2k $7.5m | First filing |
| EverSource Wealth Advisors, LLC 0.24% of their portfolio | 52.1k $7.1m | Reduced -66 |
| INTECH INVESTMENT MANAGEMENT LLC 0.06% of their portfolio | 51.8k $7.0m | Added +28.0k |
| Allianz Asset Management GmbH 0.01% of their portfolio | 51.4k $6.8m | Added +195 |
| PANAGORA ASSET MANAGEMENT INC 0.02% of their portfolio | 51.1k $6.9m | Added +48.7k |