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.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2021Matrix Advisors Value FundBuy870870$206
Q2 2021Matrix Private Capital GroupBuy1133,750$890
Q2 2021Sequoia Financial AdvisorsBuy6,08414,922$3,542
Q1 2021Matrix Private Capital GroupSell-1263,637$805
Q1 2021Sequoia Financial AdvisorsSell-1,1178,838$1,956
Q1 2021Renaissance Technologies LLCBuy4,70011,300$2,501
Q4 2020Matrix Private Capital GroupBuy53,763$778
Q4 2020Sequoia Financial AdvisorsBuy1949,955$2,058
Q3 2020Renaissance Technologies LLCSell-5,6006,600$1,163
Q3 2020Sequoia Financial AdvisorsBuy9,7619,761$1,720
Q2 2020Matrix Private Capital GroupBuy1463,758$616
Q2 2020Renaissance Technologies LLCBuy10,10012,200$2,000
Q2 2020Sequoia Financial AdvisorsSell-6,9190$2,107
Q1 2020Renaissance Technologies LLCBuy5002,100$276
Q1 2020Matrix Private Capital GroupSell-2293,612$475
Q1 2020Sequoia Financial AdvisorsBuy1,7026,919$911
Q4 2019Matrix Private Capital GroupBuy3,8413,841$684
Q4 2019Sequoia Financial AdvisorsBuy8805,217$930
Q3 2019Sequoia Financial AdvisorsSell-1284,337$727
Q2 2019Renaissance Technologies LLCSell-9001,600$267
Q2 2019Sequoia Financial AdvisorsSell-2894,465$746
Q1 2019Sequoia Financial AdvisorsSell-19,3834,754$764
Q4 2018Sequoia Financial AdvisorsSell-3,31124,137$3,335
Q3 2018Renaissance Technologies LLCSell-1,2002,500$410
Q3 2018Sequoia Financial AdvisorsBuy21927,448$4,507
Q2 2018Sequoia Financial AdvisorsBuy2,91427,229$4,292
Q1 2018Renaissance Technologies LLCBuy3,7003,700$571
Q1 2018Sequoia Financial AdvisorsBuy2,30324,315$3,750
Q4 2017Sequoia Financial AdvisorsBuy2,40222,012$3,407
Q3 2017Sequoia Financial AdvisorsBuy2,69719,610$2,883

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.