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 ($17.9m this quarter). Holder counts are more reliable. Shares outstanding: 53.5m as of 2026-05-07, 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 ≈ $132.44. Options: 3 managers hold calls ($8.8m notional), 3 hold puts ($2.2m).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 209 | 159 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $748.2k | $34.0k | 0.05 |
| Q3 2025 | $2.2m | $2.7m | 1.22 |
| Q4 2025 | $1.4m | $595.0k | 0.41 |
| Q1 2026 | $8.8m | $2.2m | 0.24 |
Biggest buyers
| FRONTIER CAPITAL MANAGEMENT CO LLC | Added | +511.4k |
| Hood River Capital Management LLC | New | +464.3k |
| FMR LLC | Added | +322.4k |
| Qube Research & Technologies Ltd | New | +272.9k |
| AMERICAN CENTURY COMPANIES INC | Added | +263.2k |
| AMERIPRISE FINANCIAL INC | Added | +236.6k |
| GOLDMAN SACHS GROUP INC | Added | +215.9k |
| Select Equity Group, L.P. | Added | +212.2k |
| WESTWOOD HOLDINGS GROUP INC | New | +192.5k |
| FEDERATED HERMES, INC. | Added | +166.6k |
Biggest sellers
| FIRST TRUST ADVISORS LP | Reduced | -852.0k |
| PRUDENTIAL FINANCIAL INC | Reduced | -513.2k |
| NEUBERGER BERMAN GROUP LLC | Reduced | -435.9k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -379.7k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -356.7k |
| BlackRock, Inc. | Reduced | -289.7k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -279.6k |
| Amundi | Reduced | -232.0k |
| Trexquant Investment LP | Sold out | -199.3k |
| D. E. Shaw & Co., Inc. | Reduced | -186.5k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $6.6m49.4k shares |
| CITADEL ADVISORS LLC | Added | $2.3m17.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $13.3k100 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.1m8.1k shares |
| LOGAN CAPITAL MANAGEMENT INC | New | $547.6k4.1k shares |
| VELA Investment Management, LLC | New | $531.5k4.0k 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 in Q1 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 |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 10 | $3.9m | $1.0m |
| Q3 2024 | 0 | — | 4 | $7.1m | — |
| 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 | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-03-02 | O'Neil Christian G. President and COO | Sold | $1.5m11.3k shares |
| 2026-03-02 | Kumar Raj Exec VP and CFO | Sold | $398.1k3.0k shares |
| 2026-02-24 | Grzebinski David W CEO, director | Sold | $4.4m34.2k shares |
| 2026-02-20 | Husted Amy D. Exec VP General Counsel & Sec | Sold | $1.5m11.7k shares |
| 2026-02-19 | DAVIS BARRY E Director | Sold | $1.1m8.5k shares |
| 2026-02-10 | MILLER SCOTT P VP - CIO | Sold | $477.9k4.0k shares |
| 2026-02-09 | Woodruff William Matthew VP of Public and Govt Affairs | Sold | $243.8k2.0k shares |
| 2026-02-04 | DRAGG RONALD A Vice President and Controller | Sold | $662.3k5.4k 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, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 5.3m $701.2m | Reduced -289.7k |
| GOLDMAN SACHS GROUP INC 0.05% of their portfolio | 2.8m $375.8m | Added +215.9k |
| MORGAN STANLEY 0.02% of their portfolio | 2.7m $354.8m | Reduced -114.2k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.02% of their portfolio | 2.7m $353.6m | First filing |
| DIMENSIONAL FUND ADVISORS LP 0.07% of their portfolio | 2.6m $347.8m | Added +133.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 2.4m $319.9m | First filing |
| NEUBERGER BERMAN GROUP LLC 0.18% of their portfolio | 1.7m $230.6m | Reduced -435.9k |
| STATE STREET CORP 0.01% of their portfolio | 1.6m $217.8m | Added +40.0k |
| WELLINGTON MANAGEMENT GROUP LLP 0.04% of their portfolio | 1.6m $209.4m | Reduced -356.7k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.90% of their portfolio | 1.6m $207.4m | Reduced -56.3k |
| FIRST TRUST ADVISORS LP 0.13% of their portfolio | 1.4m $186.7m | Reduced -852.0k |
| ALLIANCEBERNSTEIN L.P. 0.04% of their portfolio | 1.1m $122.9m | Reduced -379.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.0m $135.8m | Added +45.2k |
| AMERICAN CENTURY COMPANIES INC 0.06% of their portfolio | 928.7k $123.4m | Added +263.2k |
| FMR LLC 0.01% of their portfolio | 794.6k $105.6m | Added +322.4k |
| JENNISON ASSOCIATES LLC 0.07% of their portfolio | 758.0k $100.7m | Added +24.1k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 731.3k $97.2m | Added +236.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 697.8k $92.7m | Added +31.6k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.88% of their portfolio | 644.3k $85.6m | Added +511.4k |
| CITADEL ADVISORS LLC 0.06% of their portfolio | 625.6k $83.1m | Added +114.7k |
| CONGRESS ASSET MANAGEMENT CO 0.60% of their portfolio | 625.5k $83.1m | Added +95.6k |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC 0.26% of their portfolio | 606.0k $80.5m | Reduced -38.4k |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 534.2k $71.0m | Added +143.5k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.12% of their portfolio | 523.4k $69.5m | Added +33.3k |
| JANUS HENDERSON GROUP PLC 0.03% of their portfolio | 480.0k $63.8m | Reduced -78.3k |
| ArrowMark Colorado Holdings LLC 1.66% of their portfolio | 470.5k $62.5m | Reduced -139.0k |
| Encompass Capital Advisors LLC 2.54% of their portfolio | 469.6k $62.4m | Reduced -180.1k |
| Hood River Capital Management LLC 0.62% of their portfolio | 464.3k $61.7m | New |
| NORTHERN TRUST CORP 0.01% of their portfolio | 460.0k $61.1m | Added +7.3k |
| Select Equity Group, L.P. 0.27% of their portfolio | 375.9k $49.9m | Added +212.2k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.04% of their portfolio | 360.2k $48.3m | Reduced -51.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 345.6k $45.9m | Reduced -66.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 341.1k $45.3m | Added +5.9k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 339.0k $45.0m | Reduced -5.3k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 337.8k $44.9m | Added +5.0k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 336.5k $44.7m | First filing |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 318.3k $42.3m | Reduced -279.6k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 314.5k $41.8m | Reduced -38.2k |
| 12th Street Asset Management Company, LLC 6.33% of their portfolio | 291.1k $38.7m | Reduced -6.9k |
| Assenagon Asset Management S.A. 0.06% of their portfolio | 281.5k $37.4m | Added +66.5k |
| VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio | 275.7k $36.6m | Added +26.9k |
| Qube Research & Technologies Ltd 0.05% of their portfolio | 272.9k $36.3m | New |
| PRIMECAP MANAGEMENT CO/CA/ 0.03% of their portfolio | 263.8k $35.1m | Reduced -14.0k |
| CAPSTONE INVESTMENT ADVISORS, LLC 0.29% of their portfolio | 263.6k $35.0m | Reduced -94.7k |
| ATLANTIC INVESTMENT MANAGEMENT, INC. 19.89% of their portfolio | 257.0k $34.2m | Added +34.0k |
| VAN ECK ASSOCIATES CORP 0.02% of their portfolio | 224.5k $29.8m | Added +67.8k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 221.8k $29.5m | Added +157.7k |
| FIL Ltd 0.02% of their portfolio | 219.5k $29.2m | Added +88.6k |
| Allspring Global Investments Holdings, LLC 0.05% of their portfolio | 219.4k $29.6m | Added +14.1k |
| Park West Asset Management LLC 2.49% of their portfolio | 212.5k $28.2m | Added +146.2k |
| FEDERATED HERMES, INC. 0.04% of their portfolio | 201.9k $26.8m | Added +166.6k |
| DAVENPORT & Co LLC 0.15% of their portfolio | 199.5k $26.8m | Reduced -49.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 197.4k $26.5m | Reduced -48.6k |
| ALGERT GLOBAL LLC 0.39% of their portfolio | 192.7k $25.6m | Reduced -7.4k |
| WESTWOOD HOLDINGS GROUP INC 0.19% of their portfolio | 192.5k $25.6m | New |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.08% of their portfolio | 187.9k $25.0m | Reduced -116.3k |
| Gotham Asset Management, LLC 0.07% of their portfolio | 177.6k $23.6m | Added +72.9k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 174.3k $23.2m | Reduced -9.2k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 168.5k $22.4m | Reduced -186.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 166.7k $22.2m | Added +50.1k |
| SummitTX Capital, L.P. 0.71% of their portfolio | 166.3k $22.1m | New |
| Yaupon Capital Management LP 1.09% of their portfolio | 165.5k $22.0m | New |
| JANE STREET GROUP, LLC 0.02% of their portfolio | 165.2k $21.9m | Added +162.7k |
| Connor, Clark & Lunn Investment Management Ltd. 0.05% of their portfolio | 155.0k $20.6m | Added +59.4k |
| Schonfeld Strategic Advisors LLC 0.16% of their portfolio | 146.5k $19.5m | Added +92.0k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 145.0k $19.3m | Added +1.4k |
| VELA Investment Management, LLC 4.87% of their portfolio | 141.7k $18.8m | Reduced -10.2k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 137.6k $18.3m | Added +70.7k |
| Bridgewater Associates, LP 0.08% of their portfolio | 130.6k $17.3m | Added +23.5k |
| LATHROP INVESTMENT MANAGEMENT CO 3.24% of their portfolio | 130.3k $17.3m | Added +1.6k |
| LORD, ABBETT & CO. LLC 0.05% of their portfolio | 125.0k $16.6m | New |
| Squarepoint Ops LLC 0.04% of their portfolio | 123.5k $16.4m | Reduced -58.3k |
| Balyasny Asset Management L.P. 0.03% of their portfolio | 118.5k $15.7m | Added +100.1k |
| UBS Group AG 0.00% of their portfolio | 116.0k $15.4m | Added +28.4k |
| Invesco Ltd. 0.00% of their portfolio | 107.9k $14.3m | Reduced -383 |
| California Public Employees Retirement System 0.01% of their portfolio | 105.0k $13.9m | Added +1.0k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.51% of their portfolio | 103.2k $13.7m | Reduced -20.2k |
| Nuveen, LLC 0.00% of their portfolio | 102.3k $13.6m | Added +827 |
| ROYCE & ASSOCIATES LP 0.13% of their portfolio | 102.3k $13.6m | Added +919 |
| Retirement Systems of Alabama 0.05% of their portfolio | 101.5k $13.5m | Added +1.4k |
| Mountaineer Partners Management, LLC 5.88% of their portfolio | 89.0k $11.8m | Added +1.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 77.8k $10.3m | Added +12.6k |
| Hudson Bay Capital Management LP 0.06% of their portfolio | 74.8k $9.9m | New |
| Rokos Capital Management LLP 0.18% of their portfolio | 74.6k $9.9m | New |
| Hodges Capital Management Inc. 0.79% of their portfolio | 71.7k $9.5m | Reduced -33.2k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 70.9k $9.4m | Reduced -9.6k |
| Man Group plc 0.02% of their portfolio | 70.1k $9.3m | Reduced -2.7k |
| OPPENHEIMER ASSET MANAGEMENT INC. 0.10% of their portfolio | 67.8k $9.0m | Reduced -2.0k |
| TECTONIC ADVISORS LLC 0.48% of their portfolio | 67.7k $9.0m | Reduced -4.6k |
| Premier Fund Managers Ltd 0.64% of their portfolio | 67.2k $9.0m | Added +60.5k |
| HOURGLASS CAPITAL, LLC 1.81% of their portfolio | 65.6k $8.7m | Reduced -9.5k |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 64.1k $8.5m | Added +5.3k |
| PICTON MAHONEY ASSET MANAGEMENT 0.09% of their portfolio | 62.9k $8.4m | Added +11.8k |
| Verition Fund Management LLC 0.08% of their portfolio | 58.2k $7.7m | Reduced -26.9k |
| STRS OHIO 0.03% of their portfolio | 58.0k $7.7m | Added +56.7k |
| Campbell & CO Investment Adviser LLC 0.42% of their portfolio | 55.6k $7.4m | Added +49.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 55.6k $7.4m | Reduced -2.3k |
| Mariner, LLC 0.01% of their portfolio | 55.1k $7.3m | Added +18.9k |
| Legal & General Group Plc 0.00% of their portfolio | 54.5k $7.2m | Reduced -3.8k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 53.0k $7.0m | Added +2.6k |