(CIO) Stock Institutional Trading Activity


(CIO) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q3 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC and Third Avenue 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
Q3 2025Renaissance Technologies LLCSell-702,300480,115$3,341,600
Q2 2025Renaissance Technologies LLCSell-73,6001,182,415$6,314,096
Q1 2025Renaissance Technologies LLCSell-24,9451,256,015$6,518,718
Q4 2024Renaissance Technologies LLCBuy15,5441,280,960$7,070,899
Q3 2024Renaissance Technologies LLCSell-3,0001,265,416$7,390,029
Q2 2024Renaissance Technologies LLCBuy21,6001,268,416$6,316,712
Q1 2024Renaissance Technologies LLCBuy179,4001,246,816$6,496
Q4 2023Renaissance Technologies LLCBuy6,0001,067,416$6,522
Q3 2023Renaissance Technologies LLCSell-42,1001,061,416$4,511
Q2 2023Renaissance Technologies LLCSell-304,6001,103,516$6,147
Q1 2023Renaissance Technologies LLCSell-102,9001,408,116$9,716
Q4 2022Renaissance Technologies LLCSell-112,5001,511,016$12,662
Q3 2022Renaissance Technologies LLCSell-103,8001,623,516$16,186
Q2 2022Renaissance Technologies LLCBuy108,8001,727,316$22,369
Q1 2022Renaissance Technologies LLCBuy10,6001,618,516$28,583
Q4 2021Renaissance Technologies LLCBuy3,1001,607,916$31,708
Q3 2021Renaissance Technologies LLCSell-150,6661,604,816$28,662
Q2 2021Renaissance Technologies LLCSell-129,0341,755,482$21,821
Q1 2021Renaissance Technologies LLCSell-56,1001,884,516$20,014
Q4 2020Third Avenue ManagementSell-24,00046,000$450
Q4 2020Renaissance Technologies LLCSell-585,2541,940,616$18,960
Q3 2020Third Avenue ManagementBuy15,00070,000$527
Q3 2020Renaissance Technologies LLCSell-135,0332,525,870$18,995
Q2 2020Renaissance Technologies LLCSell-757,8942,660,903$26,769
Q1 2020Third Avenue ManagementBuy55,00055,000$398
Q1 2020Renaissance Technologies LLCBuy213,6943,418,797$24,718
Q4 2019Renaissance Technologies LLCBuy158,2043,205,103$43,333
Q3 2019Renaissance Technologies LLCBuy1,207,1033,046,899$43,845
Q2 2019Renaissance Technologies LLCBuy111,1001,839,796$22,059
Q1 2019Renaissance Technologies LLCBuy8,2001,728,696$19,552

Frequently asked questions about CIO activity

  • Which institutional owners are buying CIO?

    Institutional owners buying CIO 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 CIO activity?

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

  • Is institutional interest in CIO increasing?

    Institutional interest in CIO 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.