CSX CORP (CSX) Institutional Ownership Changes & 13F Activity

CSX CORP (CSX) 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 Viking Global Investors, Sound Shore Management, Renaissance Technologies LLC, Sequoia Financial Advisors, and Cullen Value Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Viking Global InvestorsBuy4,860,51318,678,052$766,734,035
Q1 2026Sound Shore ManagementSell-399,7152,002,159$82,188,627
Q1 2026Renaissance Technologies LLCSell-390,500503,600$20,672,780
Q1 2026Sequoia Financial AdvisorsSell-107,92595,859$3,935,024
Q1 2026Cullen Value FundSell-1,94729,894$1,227,166
Q1 2026Kahn Brothers GroupSell-1,05036,481$1,497,545
Q4 2025Third PointSell-2,250,000500,000$18,125,000
Q4 2025Viking Global InvestorsSell-2,130,18013,817,539$500,885,789
Q4 2025Sequoia Financial AdvisorsBuy26,617203,784$7,387,163
Q4 2025Sound Shore ManagementSell-14,7932,401,874$87,067,932
Q4 2025Kahn Brothers GroupSell-3,20037,531$1,360,498
Q4 2025Cullen Value FundBuy4431,841$1,120,798
Q3 2025Viking Global InvestorsSell-2,924,16315,947,719$566,303,502
Q3 2025Sound Shore ManagementSell-690,3262,416,667$85,815,845
Q3 2025Sequoia Financial AdvisorsBuy25,340177,167$6,291,182
Q3 2025Cullen Value FundSell-3,34631,797$1,145,006
Q2 2025Viking Global InvestorsBuy1,803,11318,871,882$615,789,510
Q2 2025Kahn Brothers GroupSell-8,00040,731$1,329,052
Q2 2025Sequoia Financial AdvisorsBuy7,751151,827$4,954,107
Q2 2025Sound Shore ManagementSell-3,5173,106,993$101,381,181
Q2 2025Cullen Value FundSell-14135,143$1,146,731
Q1 2025Viking Global InvestorsBuy2,396,23217,068,769$502,333,872
Q1 2025Sound Shore ManagementBuy1,008,7253,110,510$91,542,309
Q1 2025Sequoia Financial AdvisorsBuy17,630144,076$4,240,156
Q1 2025Cullen Value FundSell-1,72135,284$1,038,415
Q1 2025Kahn Brothers GroupSell-1,08948,731$1,434,000
Q4 2024Viking Global InvestorsBuy5,320,79014,672,537$473,482,769
Q4 2024Sound Shore ManagementBuy2,101,7852,101,785$67,824,602
Q4 2024Sequoia Financial AdvisorsBuy11,923126,446$4,080,417
Q4 2024Cullen Value FundBuy51837,005$1,194,147

Frequently asked questions about CSX activity

  • Which institutional owners are buying CSX?

    Institutional owners buying CSX 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 CSX activity?

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

  • Is institutional interest in CSX increasing?

    Institutional interest in CSX 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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