ISHARES RUSSELL 1000 GROWTH (IWF) Institutional Ownership Changes & 13F Activity

ISHARES RUSSELL 1000 GROWTH (IWF) 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 Polen Capital Management, Renaissance Technologies LLC, Wedgewood Partners, Matrix Advisors Value Fund, and ARK Invest.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2022Matrix Advisors Value FundSell-1,5428,319$1,750
Q3 2022Sequoia Financial AdvisorsSell-9529,079$1,910
Q3 2022Matrix Private Capital GroupSell-2065,017$1,056
Q2 2022Polen Capital ManagementBuy51,2911,163,904$254,546
Q2 2022Renaissance Technologies LLCSell-11,1002,900$634
Q2 2022Matrix Advisors Value FundBuy3,9519,861$2,157
Q2 2022ARK InvestSell-3,107574$137
Q2 2022Sequoia Financial AdvisorsSell-1,25410,031$2,195
Q2 2022Matrix Private Capital GroupSell-55,223$1,142
Q1 2022Polen Capital ManagementBuy873,1901,112,613$308,895
Q1 2022Sequoia Financial AdvisorsBuy5,20711,285$3,133
Q1 2022Matrix Advisors Value FundBuy2,2925,910$1,641
Q1 2022Matrix Private Capital GroupSell-215,228$1,452
Q4 2021Polen Capital ManagementBuy173,680239,423$73,165
Q4 2021Renaissance Technologies LLCBuy8,90014,000$4,278
Q4 2021ARK InvestBuy2,8283,681$1,125
Q4 2021Sequoia Financial AdvisorsBuy2,1026,078$1,857
Q4 2021Matrix Advisors Value FundBuy8153,618$1,106
Q4 2021Hillman Value FundBuy5353$16
Q3 2021Polen Capital ManagementSell-126,27465,743$18,016
Q3 2021Renaissance Technologies LLCSell-6,5005,100$1,398
Q3 2021Matrix Advisors Value FundBuy9002,803$768
Q3 2021ARK InvestBuy749853$234
Q3 2021Torray FundSell-4502,011$551
Q3 2021Matrix Private Capital GroupSell-225,249$1,438
Q2 2021Polen Capital ManagementBuy15,100192,017$52,129
Q2 2021ARK InvestSell-3,166104$28
Q2 2021Matrix Advisors Value FundBuy6671,903$517
Q2 2021Sequoia Financial AdvisorsSell-2173,976$1,079
Q2 2021Matrix Private Capital GroupSell-335,271$1,431

Frequently asked questions about IWF activity

  • Which institutional owners are buying IWF?

    Institutional owners buying IWF 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 IWF activity?

    "Buy" means an investor increased their reported position in IWF compared to the prior reporting period. This reflects growing exposure to ISHARES RUSSELL 1000 GROWTH (IWF) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IWF increasing?

    Institutional interest in IWF 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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