VANGUARD MID-CAP ETF (VO) Institutional Ownership Changes & 13F Activity

VANGUARD MID-CAP ETF (VO) 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 Renaissance Technologies LLC, Mairs & Power Growth Fund, Matrix Advisors Value Fund, Matrix Private Capital Group, and Sequoia Financial Advisors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCBuy24,32029,400$8,443,092
Q1 2026Mairs & Power Growth FundBuy8,90210,997$3,158,118
Q1 2026Matrix Advisors Value FundBuy2,6227,684$2,206,800
Q1 2026Matrix Private Capital GroupSell-4963,027$869,294
Q1 2026Sequoia Financial AdvisorsBuy16214,007$4,022,634
Q4 2025Renaissance Technologies LLCSell-8,4205,080$1,474,318
Q4 2025Sequoia Financial AdvisorsBuy1,55513,845$4,018,084
Q4 2025Matrix Advisors Value FundBuy1,1225,062$1,469,095
Q4 2025Mairs & Power Growth FundBuy9672,095$608,011
Q4 2025Matrix Private Capital GroupBuy503,523$1,022,445
Q3 2025Polen Capital ManagementBuy8,6908,690$2,552,601
Q3 2025Renaissance Technologies LLCSell-7,10013,500$3,965,490
Q3 2025Sequoia Financial AdvisorsBuy3,22712,290$3,609,959
Q3 2025Matrix Advisors Value FundBuy1,1803,940$1,157,416
Q3 2025Mairs & Power Growth FundSell-1,1101,128$613,035
Q3 2025Matrix Private Capital GroupBuy993,473$1,023,750
Q2 2025Renaissance Technologies LLCBuy14,40020,600$5,764,498
Q2 2025Matrix Advisors Value FundBuy1,2772,760$772,583
Q2 2025Mairs & Power Growth FundBuy2002,238$626,260
Q2 2025Sequoia Financial AdvisorsBuy1569,063$2,536,247
Q1 2025Renaissance Technologies LLCSell-32,4006,200$1,603,444
Q1 2025Sequoia Financial AdvisorsBuy1,7358,907$2,303,450
Q1 2025Mairs & Power Growth FundBuy6602,038$527,068
Q1 2025Matrix Advisors Value FundBuy1511,483$383,766
Q4 2024Renaissance Technologies LLCBuy35,50038,600$10,195,418
Q4 2024Matrix Advisors Value FundBuy3431,332$351,941
Q4 2024Sequoia Financial AdvisorsBuy1837,172$1,894,237
Q3 2024Renaissance Technologies LLCSell-12,5003,100$817,873
Q3 2024Sequoia Financial AdvisorsSell-1536,989$1,843,989
Q3 2024Matrix Advisors Value FundBuy101989$260,943

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.

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