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 2025Mairs & Power Growth FundBuy9672,095$608,011
Q4 2025Matrix Private Capital GroupBuy503,523$1,022,445
Q4 2025Matrix Advisors Value FundBuy1,1225,062$1,469,095
Q4 2025Renaissance Technologies LLCSell-8,4205,080$1,474,318
Q3 2025Mairs & Power Growth FundSell-1,1101,128$613,035
Q3 2025Matrix Private Capital GroupBuy993,473$1,023,750
Q3 2025Matrix Advisors Value FundBuy1,1803,940$1,157,416
Q3 2025Polen Capital ManagementBuy8,6908,690$2,552,601
Q3 2025Sequoia Financial AdvisorsBuy3,22712,290$3,609,959
Q3 2025Renaissance Technologies LLCSell-7,10013,500$3,965,490
Q2 2025Mairs & Power Growth FundBuy2002,238$626,260
Q2 2025Matrix Advisors Value FundBuy1,2772,760$772,583
Q2 2025Sequoia Financial AdvisorsBuy1569,063$2,536,247
Q2 2025Renaissance Technologies LLCBuy14,40020,600$5,764,498
Q1 2025Matrix Advisors Value FundBuy1511,483$383,766
Q1 2025Mairs & Power Growth FundBuy6602,038$527,068
Q1 2025Renaissance Technologies LLCSell-32,4006,200$1,603,444
Q1 2025Sequoia Financial AdvisorsBuy1,7358,907$2,303,450
Q4 2024Matrix Advisors Value FundBuy3431,332$351,941
Q4 2024Sequoia Financial AdvisorsBuy1837,172$1,894,237
Q4 2024Renaissance Technologies LLCBuy35,50038,600$10,195,418
Q3 2024Matrix Advisors Value FundBuy101989$260,943
Q3 2024Mairs & Power Growth FundSell-661,378$363,558
Q3 2024Renaissance Technologies LLCSell-12,5003,100$817,873
Q3 2024Sequoia Financial AdvisorsSell-1536,989$1,843,989
Q2 2024Mairs & Power Growth FundSell-471,444$349,592
Q2 2024Matrix Private Capital GroupBuy3253,374$819,979
Q2 2024Sequoia Financial AdvisorsSell-4547,142$1,729,075
Q1 2024Matrix Private Capital GroupBuy2583,049$761,823
Q1 2024Sequoia Financial AdvisorsSell-1,4907,596$1,897,869

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.