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.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2014Causeway Capital ManagementBuy28,833264,078$12,163
Q3 2014Dodge & Cox Stock FundBuy30024,512$1,206
Q3 2014Causeway Capital ManagementBuy8,413235,245$11,569
Q2 2014Causeway Capital ManagementBuy22,369226,832$12,995
Q2 2014Dodge & Cox Stock FundSell-1,10024,212$1,314
Q1 2014Causeway Capital ManagementBuy76,104204,463$11,415
Q1 2014Dodge & Cox Stock FundSell-1,40025,312$1,413
Q4 2013Causeway Capital ManagementBuy75,947128,359$7,243
Q4 2013Dodge & Cox Stock FundSell-20026,712$1,507
Q3 2013Causeway Capital ManagementSell-8,35452,412$2,556
Q3 2013Dodge & Cox Stock FundSell-40026,912$1,312
Q2 2013Causeway Capital ManagementBuy60,76660,766$2,496
Q2 2013Renaissance Technologies LLCBuy382,700382,700$15,721
Q2 2013Dodge & Cox Stock FundBuy27,31227,312$1,122

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.