RIO TINTO PLC-SPON ADR (RIO) Stock Institutional Trading Activity


RIO TINTO PLC-SPON ADR (RIO) 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 Renaissance Technologies LLC, Sequoia Financial Advisors, Causeway Capital Management, Dodge & Cox Stock Fund, and Appaloosa 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 2022Causeway Capital ManagementSell-2,458153,074$10,898,841
Q3 2022Sequoia Financial AdvisorsSell-6286,364$350
Q3 2022Renaissance Technologies LLCSell-1,228,800121,700$6,701
Q3 2022Causeway Capital ManagementBuy53,888155,532$8,564
Q2 2022Sequoia Financial AdvisorsBuy4916,992$426
Q2 2022Renaissance Technologies LLCBuy342,4001,350,500$82,381
Q1 2022Sequoia Financial AdvisorsBuy1,6036,501$523
Q1 2022Renaissance Technologies LLCSell-314,0001,008,100$81,051
Q4 2021Dodge & Cox Stock FundSell-1005,200$348
Q4 2021Sequoia Financial AdvisorsBuy8024,898$328
Q4 2021Renaissance Technologies LLCBuy1,086,3001,322,100$88,501
Q3 2021Dodge & Cox Stock FundSell-8005,300$354
Q3 2021Renaissance Technologies LLCBuy79,800235,800$15,756
Q2 2021Dodge & Cox Stock FundSell-1,6006,100$512
Q2 2021Sequoia Financial AdvisorsBuy6664,096$344
Q2 2021Renaissance Technologies LLCSell-433,700156,000$13,087
Q1 2021Dodge & Cox Stock FundSell-8007,700$598
Q1 2021Sequoia Financial AdvisorsBuy883,430$266
Q1 2021Renaissance Technologies LLCBuy85,236589,700$45,790
Q4 2020Sequoia Financial AdvisorsSell-1333,342$251
Q4 2020Renaissance Technologies LLCSell-956,269504,464$37,946
Q3 2020Sequoia Financial AdvisorsBuy3,4753,475$210
Q3 2020Renaissance Technologies LLCSell-220,7991,460,733$88,214
Q2 2020Dodge & Cox Stock FundSell-8008,500$478
Q2 2020Renaissance Technologies LLCBuy122,6001,681,532$94,468
Q1 2020Causeway Capital ManagementSell-199,334101,644$4,631
Q1 2020Renaissance Technologies LLCBuy43,7001,558,932$71,025
Q4 2019Renaissance Technologies LLCBuy200,3001,515,232$89,944
Q3 2019Renaissance Technologies LLCBuy800,5001,314,932$68,495
Q2 2019Dodge & Cox Stock FundSell-2009,300$580

Frequently asked questions about RIO activity

  • Which institutional owners are buying RIO?

    Institutional owners buying RIO 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 RIO activity?

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

  • Is institutional interest in RIO increasing?

    Institutional interest in RIO 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.