VANGUARD MID-CAP ETF (VO) Stock Institutional Trading Activity


VANGUARD MID-CAP ETF (VO) 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, Mairs & Power Growth Fund, Matrix Private Capital Group, and Polen Capital 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 2023Matrix Advisors Value FundBuy6888$206,602
Q4 2023Matrix Private Capital GroupBuy602,791$649,298
Q4 2023Sequoia Financial AdvisorsBuy1,1429,086$2,113,780
Q3 2023Renaissance Technologies LLCBuy14,00015,600$3,249
Q3 2023Matrix Private Capital GroupBuy902,731$568,703
Q3 2023Sequoia Financial AdvisorsSell-7,0337,944$1,654,299
Q2 2023Renaissance Technologies LLCSell-1,1001,600$352
Q2 2023Matrix Private Capital GroupSell-562,641$581,443
Q2 2023Sequoia Financial AdvisorsSell-4,67514,977$3,297,239
Q1 2023Mairs & Power Growth FundBuy1,4911,491$314,482
Q1 2023Matrix Private Capital GroupSell-1,0532,697$568,851
Q1 2023Sequoia Financial AdvisorsSell-64219,652$4,145,013
Q4 2022Renaissance Technologies LLCSell-12,2002,700$550
Q4 2022Matrix Private Capital GroupBuy3303,750$764,288
Q4 2022Sequoia Financial AdvisorsBuy6,92920,294$4,136,209
Q3 2022Matrix Private Capital GroupSell-9363,420$643
Q3 2022Sequoia Financial AdvisorsSell-1,62313,365$2,512
Q3 2022Renaissance Technologies LLCBuy11,80014,900$2,801
Q2 2022Renaissance Technologies LLCSell-8,9003,100$611
Q2 2022Matrix Private Capital GroupSell-2434,356$858
Q2 2022Sequoia Financial AdvisorsSell-1,27914,988$2,952
Q1 2022Matrix Private Capital GroupBuy214,599$1,094
Q1 2022Sequoia Financial AdvisorsSell-11516,267$3,869
Q4 2021Matrix Advisors Value FundBuy12882$225
Q4 2021Matrix Private Capital GroupBuy8154,578$1,166
Q4 2021Sequoia Financial AdvisorsBuy15,37716,382$4,174
Q4 2021Disciplined Growth InvestorsBuy1,4641,464$373
Q3 2021Sequoia Financial AdvisorsSell-13,9171,005$238
Q3 2021Matrix Private Capital GroupBuy133,763$891
Q3 2021Renaissance Technologies LLCBuy70012,000$2,841

Frequently asked questions about VO activity

  • Which institutional owners are buying VO?

    Institutional owners buying VO 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 VO activity?

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

  • Is institutional interest in VO increasing?

    Institutional interest in VO 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.