CSX CORP (CSX) Stock Institutional Trading Activity


CSX CORP (CSX) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Third Point, Viking Global Investors, Kahn Brothers Group, Cullen Value Fund, and Sound Shore Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Third PointSell-2,250,000500,000$18,125,000
Q4 2025Viking Global InvestorsSell-2,130,18013,817,539$500,885,789
Q4 2025Kahn Brothers GroupSell-3,20037,531$1,360,498
Q4 2025Cullen Value FundBuy4431,841$1,120,798
Q3 2025Sequoia Financial AdvisorsBuy25,340177,167$6,291,182
Q3 2025Viking Global InvestorsSell-2,924,16315,947,719$566,303,502
Q3 2025Sound Shore ManagementSell-690,3262,416,667$85,815,845
Q3 2025Cullen Value FundSell-3,34631,797$1,145,006
Q2 2025Sequoia Financial AdvisorsBuy7,751151,827$4,954,107
Q2 2025Viking Global InvestorsBuy1,803,11318,871,882$615,789,510
Q2 2025Kahn Brothers GroupSell-8,00040,731$1,329,052
Q2 2025Sound Shore ManagementSell-3,5173,106,993$101,381,181
Q2 2025Cullen Value FundSell-14135,143$1,146,731
Q1 2025Kahn Brothers GroupSell-1,08948,731$1,434,000
Q1 2025Sequoia Financial AdvisorsBuy17,630144,076$4,240,156
Q1 2025Viking Global InvestorsBuy2,396,23217,068,769$502,333,872
Q1 2025Sound Shore ManagementBuy1,008,7253,110,510$91,542,309
Q1 2025Cullen Value FundSell-1,72135,284$1,038,415
Q4 2024Sequoia Financial AdvisorsBuy11,923126,446$4,080,417
Q4 2024Viking Global InvestorsBuy5,320,79014,672,537$473,482,769
Q4 2024Sound Shore ManagementBuy2,101,7852,101,785$67,824,602
Q4 2024Cullen Value FundBuy51837,005$1,194,147
Q3 2024Sequoia Financial AdvisorsBuy13,523114,523$3,954,478
Q3 2024Viking Global InvestorsBuy4,613,2039,351,747$322,915,824
Q3 2024Cullen Value FundSell-22336,487$1,259,904
Q2 2024Kahn Brothers GroupSell-50049,820$1,666,000
Q2 2024Sequoia Financial AdvisorsBuy8,054101,000$3,378,441
Q2 2024Renaissance Technologies LLCBuy99,600894,100$29,907,645
Q2 2024Viking Global InvestorsBuy780,7474,738,544$158,504,297
Q2 2024Cullen Value FundSell-2,72936,710$1,227,953

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.