KIRBY CORP (KEX) Institutional Ownership Changes & 13F Activity

KIRBY CORP (KEX) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Atlantic Investment Management, Sequoia Financial Advisors, Renaissance Technologies LLC, Muhlenkamp & Co, and Thunderbird Partners.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Atlantic Investment ManagementBuy34,000257,000$34,150,160
Q1 2026Sequoia Financial AdvisorsSell-1,2844,322$574,308
Q4 2025Atlantic Investment ManagementBuy117,699223,000$24,570,140
Q4 2025Sequoia Financial AdvisorsBuy3,0055,606$617,670
Q2 2025Sequoia Financial AdvisorsSell-19,7702,601$294,980
Q1 2025Sequoia Financial AdvisorsSell-17522,371$2,259,695
Q4 2024Renaissance Technologies LLCSell-37,8009,100$962,780
Q4 2024Muhlenkamp & CoBuy26473,011$7,724,604
Q4 2024Sequoia Financial AdvisorsBuy2322,546$2,385,367
Q3 2024Renaissance Technologies LLCBuy36,60046,900$5,741,967
Q3 2024Muhlenkamp & CoSell-24,20072,747$8,906,462
Q3 2024Sequoia Financial AdvisorsBuy5622,523$2,757,491
Q2 2024Muhlenkamp & CoSell-72,36796,947$11,607,464
Q2 2024Renaissance Technologies LLCSell-54,40010,300$1,233,219
Q2 2024Sequoia Financial AdvisorsBuy22,46722,467$2,689,974
Q1 2024Muhlenkamp & CoBuy1,107169,314$16,139,010
Q4 2023Renaissance Technologies LLCBuy47,00064,700$5,078
Q4 2023Muhlenkamp & CoBuy1,299168,207$13,200,885
Q3 2023Renaissance Technologies LLCSell-84,00017,700$1,466
Q3 2023Muhlenkamp & CoSell-297166,908$13,819,982
Q2 2023Renaissance Technologies LLCBuy5,600101,700$7,826
Q2 2023Muhlenkamp & CoBuy2,810167,205$12,866,425
Q1 2023Renaissance Technologies LLCBuy66,50096,100$6,698
Q4 2022Renaissance Technologies LLCSell-37,60029,600$1,905
Q4 2022Muhlenkamp & CoSell-154164,395$10,578,818
Q3 2022Muhlenkamp & CoBuy634164,549$10,000
Q2 2022Renaissance Technologies LLCBuy49,10067,200$4,088
Q2 2022Muhlenkamp & CoSell-1,484163,915$9,973
Q1 2022Renaissance Technologies LLCSell-98,30018,100$1,307
Q1 2022Muhlenkamp & CoBuy683165,399$11,940

Frequently asked questions about KEX activity

  • Which institutional owners are buying KEX?

    Institutional owners buying KEX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in KEX activity?

    "Buy" means an investor increased their reported position in KEX compared to the prior reporting period. This reflects growing exposure to KIRBY CORP (KEX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in KEX increasing?

    Institutional interest in KEX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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