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© 2026 StockSpill. Data from SEC EDGAR filings. Logos by Parqet.

PricingRead termsRead privacy policyNotes on Data
StockSpill

Notifications

Coming soon

InsightsAnalysisInvestorsCongressWatchlist
Account

Superinvestors

  • All superinvestors
  • Warren Buffett
  • Value investors
  • Activist investors
  • Smart-money insights

Congress trades

  • All congress trades
  • Senate trades
  • House trades
  • Nancy Pelosi
  • Donald Trump

Stocks

  • Browse all stocks
  • NVDA holders
  • AAPL holders
  • TSLA holders
  • MSFT holders

Tools

  • Analysis hub
  • DCF calculator
  • Compound interest
  • Treasury yields
  • Macro data

© 2026 StockSpill. Data from SEC EDGAR filings. Logos by Parqet.

PricingRead termsRead privacy policyNotes on Data
Home › MUB › Superinvestor holders

Which superinvestors own MUB (MUB)?

1 hedge funds and family offices disclose a MUB position in their latest SEC 13F filing — combined $47.7M in market value.

#InvestorFundSharesValue% of PortfolioFiled
1George SorosSoros Fund Management LLC511,400$47.7M0.65%2026-03-31

Related to MUB

Valuation & analysis

  • MUB DCF analysis
  • Free DCF calculator
  • Compound interest calculator

Smart-money holders

  • Superinvestors holding MUB
  • Politicians trading MUB
  • Insider buys & sells at MUB

Most-watched investors

  • Warren Buffett
  • Leopold Aschenbrenner
  • George Soros
  • Ray Dalio
  • Bill Ackman

Other popular stocks

  • AAPL
  • NVDA
  • MSFT
  • AMZN
  • GOOGL
  • META

Smart-money ownership of MUB

As of the latest 13F window, 1 tracked superinvestors hold MUB. The largest disclosed position is George Soros at $47.7M (0.7% of portfolio).

13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying MUB, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.

Key takeaways

  • 1 superinvestor holders disclosed.
  • Combined $47.7M in disclosed market value.
  • Largest holder: George Soros.
Home › MUB › Superinvestor holders

Which superinvestors own MUB (MUB)?

1 hedge funds and family offices disclose a MUB position in their latest SEC 13F filing — combined $47.7M in market value.

#InvestorFundSharesValue% of PortfolioFiled
1George SorosSoros Fund Management LLC511,400$47.7M0.65%2026-03-31

Related to MUB

Valuation & analysis

  • MUB DCF analysis
  • Free DCF calculator
  • Compound interest calculator

Smart-money holders

  • Superinvestors holding MUB
  • Politicians trading MUB
  • Insider buys & sells at MUB

Most-watched investors

  • Warren Buffett
  • Leopold Aschenbrenner
  • George Soros
  • Ray Dalio
  • Bill Ackman

Other popular stocks

  • AAPL
  • NVDA
  • MSFT
  • AMZN
  • GOOGL
  • META

Smart-money ownership of MUB

As of the latest 13F window, 1 tracked superinvestors hold MUB. The largest disclosed position is George Soros at $47.7M (0.7% of portfolio).

13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying MUB, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.

Key takeaways

  • 1 superinvestor holders disclosed.
  • Combined $47.7M in disclosed market value.
  • Largest holder: George Soros.