CORE NATURAL RESOURCES INC (CEIX) Institutional Ownership Changes & 13F Activity

CORE NATURAL RESOURCES INC (CEIX) 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 Greenlight Capital, Renaissance Technologies LLC, Aquamarine Zurich AG, First Eagle U.S. Value, and Fairholme Capital Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Greenlight CapitalSell-242,3401,858,140$194,603,003
Q1 2026Renaissance Technologies LLCSell-61,5556,400$670,272
Q4 2025Greenlight CapitalBuy2,100,4802,100,480$185,913,485
Q3 2025Aquamarine Zurich AGBuy2,64010,740$897
Q1 2025First Eagle U.S. ValueBuy50,10750,107$3,863,250
Q1 2025Renaissance Technologies LLCBuy37,95567,955$5,239,331
Q1 2025Aquamarine Zurich AGBuy8,1008,100$828
Q1 2025Fairholme Capital ManagementBuy5,0005,000$385,500
Q4 2024Dalal StreetSell-175,692594,950$63,469,266
Q4 2024Renaissance Technologies LLCBuy19,40030,000$3,200,400
Q3 2024Dalal StreetBuy598,604770,642$80,647,685
Q3 2024Renaissance Technologies LLCSell-92,50310,600$1,109,290
Q2 2024Dalal StreetSell-193,969172,038$17,553,037
Q1 2024Dalal StreetSell-3,000366,007$30,656,746
Q4 2023Greenlight CapitalSell-298,5502,105,577$211,673,655
Q4 2023Renaissance Technologies LLCBuy85,203103,103$10,365
Q4 2023Dalal StreetSell-27,563369,007$37,096,274
Q3 2023Greenlight CapitalSell-441,5542,404,127$252,216,963
Q3 2023Dalal StreetBuy193,096396,570$41,604,159
Q2 2023Dalal StreetBuy203,474203,474$13,797,572
Q2 2023Greenlight CapitalBuy128,9402,845,681$192,965,628
Q1 2023Greenlight CapitalBuy904,1902,716,741$158,304,498
Q1 2023Renaissance Technologies LLCSell-87,60317,900$1,043
Q4 2022Renaissance Technologies LLCSell-315,500105,503$6,858
Q4 2022Greenlight CapitalBuy99,8301,812,551$117,815,815
Q3 2022Greenlight CapitalBuy75,1001,712,721$110,162
Q3 2022Renaissance Technologies LLCBuy45,635421,003$27,079
Q2 2022Renaissance Technologies LLCBuy317,865375,368$18,536
Q2 2022Greenlight CapitalBuy162,9001,637,621$80,865
Q1 2022Greenlight CapitalSell-402,3001,474,721$55,494

Frequently asked questions about CEIX activity

  • Which institutional owners are buying CEIX?

    Institutional owners buying CEIX 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 CEIX activity?

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

  • Is institutional interest in CEIX increasing?

    Institutional interest in CEIX 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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