ISHARES RUSSELL MID-CAP ETF (IWR) Stock Institutional Trading Activity


ISHARES RUSSELL MID-CAP ETF (IWR) 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, Matrix Advisors Value Fund, Matrix Private Capital Group, Sequoia Financial Advisors, and Hillman Value Fund. 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 2020Hillman Value FundBuy862,633$151
Q3 2020Renaissance Technologies LLCSell-23,40014,200$815
Q3 2020Matrix Private Capital GroupBuy1116,431$943
Q3 2020Sequoia Financial AdvisorsBuy16,47316,473$945
Q2 2020Hillman Value FundBuy132,547$137
Q2 2020Matrix Private Capital GroupBuy71416,420$880
Q2 2020Sequoia Financial AdvisorsSell-20,1230$938
Q2 2020Renaissance Technologies LLCBuy32,80037,600$2,015
Q1 2020Renaissance Technologies LLCSell-1,0004,800$207
Q1 2020Matrix Private Capital GroupSell-2,71915,706$678
Q1 2020Sequoia Financial AdvisorsBuy19020,123$869
Q4 2019Hillman Value FundBuy2,5342,534$151
Q4 2019Matrix Private Capital GroupBuy18,42518,425$1,098
Q4 2019Sequoia Financial AdvisorsSell-2,85619,933$1,188
Q3 2019Sequoia Financial AdvisorsBuy322,789$1,275
Q2 2019Sequoia Financial AdvisorsBuy8,77122,786$1,273
Q1 2019Mairs & Power Growth FundSell-88012,860$694
Q1 2019Renaissance Technologies LLCSell-1,6005,800$313
Q1 2019Sequoia Financial AdvisorsBuy9,23514,015$756
Q4 2018Mairs & Power Growth FundBuy10,30513,740$639
Q4 2018Sequoia Financial AdvisorsBuy3,5874,780$222
Q4 2018Renaissance Technologies LLCBuy5,6007,400$344
Q3 2018Sequoia Financial AdvisorsBuy11,193$263
Q3 2018Renaissance Technologies LLCSell-1,2001,800$397
Q1 2018Sequoia Financial AdvisorsBuy871,192$246
Q1 2018Renaissance Technologies LLCBuy3,0003,000$619
Q4 2017Mairs & Power Growth FundSell-1753,435$715
Q4 2017Sequoia Financial AdvisorsBuy1,1051,105$230
Q3 2017Ariel Appreciation FundBuy3,6493,649$719
Q3 2016Mairs & Power Growth FundSell-4113,610$629

Frequently asked questions about IWR activity

  • Which institutional owners are buying IWR?

    Institutional owners buying IWR 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 IWR activity?

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

  • Is institutional interest in IWR increasing?

    Institutional interest in IWR 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.