Pioneer Municipal High Income Opportunities Fund (MIO) Institutional Ownership $11.80 +0.02 (+0.13%) Closing price 05/23/2025 03:57 PM EasternExtended Trading$11.80 0.00 (0.00%) As of 05/23/2025 04:04 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Share Share Ownership Stock AnalysisChartDividendHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for Pioneer Municipal High Income Opportunities Fund (NYSE:MIO)Number ofInstitutional Buyers(last 12 months)19TotalInstitutional Inflows(last 12 months)$21.34MNumber ofInstitutional Sellers(last 12 months)10TotalInstitutional Outflows(last 12 months)$4.61M Get MIO Insider Trade Alerts Want to know when executives and insiders are buying or selling Pioneer Municipal High Income Opportunities Fund stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address Skip Chart & View Institutional Buying and Selling Data MIO Institutional Buying and Selling by Quarter Pioneer Municipal High Income Opportunities Fund Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/16/2025 Almitas Capital LLC214,870$2.53M0.8%-7.0%0.000% 5/14/2025 Thomas J. Herzfeld Advisors Inc.52,597$620K0.2%+22.8%0.000% 5/13/2025 Sit Investment Associates Inc.2,545,042$30.01M0.7%+0.6%0.000% 5/12/2025 Invesco Ltd.59,729$704K0.0%+1.5%0.000% 5/6/2025 Avantax Advisory Services Inc.47,320$558K0.0%+3.9%0.000% 5/5/2025 Blue Bell Private Wealth Management LLC23,139$273K0.1%-9.3%0.000% 5/5/2025 Fountainhead AM LLC10,340$122K0.0%-64.3%0.000% 4/15/2025 Noble Wealth Management PBC35,783$422K0.3%+32.9%0.000% 4/10/2025 Hennion & Walsh Asset Management Inc.133,165$1.57M0.1%N/A0.000% 2/17/2025 Saba Capital Management L.P.2,079,938$24.67M0.6%+13.5%0.000% Get the Latest News and Ratings for MIO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Pioneer Municipal High Income Opportunities Fund and its competitors with MarketBeat's FREE daily newsletter. 2/17/2025 Pathstone Holdings LLC633,375$7.51M0.0%-0.7%0.000% 2/17/2025 Almitas Capital LLC231,057$2.74M0.6%+125.2%0.000% 2/13/2025 Guggenheim Capital LLC437,397$5.19M0.0%+2.0%0.000% 2/13/2025 Raymond James Financial Inc.14,056$167K0.0%N/A0.000% 2/13/2025 Sit Investment Associates Inc.2,530,477$30.01M0.7%+8.8%0.000% 2/13/2025 Wells Fargo & Company MN390,748$4.63M0.0%-1.2%0.000% 2/12/2025 Thomas J. Herzfeld Advisors Inc.42,844$508K0.2%+14.8%0.000% 2/10/2025 Atala Financial Inc32,041$380K0.3%N/A0.000% 2/10/2025 Avantax Advisory Services Inc.45,538$540K0.0%+54.3%0.000% 2/7/2025 Independent Advisor Alliance14,515$172K0.0%N/A0.000% 2/6/2025 Raymond James Financial Inc.14,056$167K0.0%N/A0.000% 2/5/2025 Noble Wealth Management PBC26,915$319K0.2%N/A0.000% 1/29/2025 Van ECK Associates Corp121,916$1.45M0.0%+1.9%0.000% 1/24/2025 Catalina Capital Group LLC18,491$219K0.1%N/A0.000% 1/17/2025 Avior Wealth Management LLC7,583$90K0.0%-13.6%0.000% 12/3/2024 Rivernorth Capital Management LLC1,132,947$14.05M0.7%+49.9%0.000% 11/25/2024Sanctuary Advisors LLC34,261$413K0.0%-2.5%0.000% 11/15/2024 Rivernorth Capital Management LLC1,118,669$13.87M0.7%+48.0%0.000% 11/7/2024 Pathstone Holdings LLC637,759$7.91M0.0%-3.1%0.000% 10/29/2024 Van ECK Associates Corp119,637$1.45M0.0%-2.4%0.000% 9/5/2024Sanctuary Advisors LLC35,122$388K0.0%N/A0.000% 8/14/2024 Whitebox Advisors LLC114,612$1.34M0.0%+157.0%0.000% 8/9/2024 City of London Investment Management Co. Ltd.113,993$1.33M0.1%-71.0%0.000% 8/5/2024 Blue Bell Private Wealth Management LLC24,065$280K0.1%+82.9%0.000% 7/31/2024 Van ECK Associates Corp122,518$1.43M0.0%-8.2%0.000% 7/30/2024 WMG Financial Advisors LLC10,047$117K0.1%N/A0.000% 7/26/2024 Bank of New York Mellon Corp15,318$178K0.0%-67.8%0.000% 5/16/2024 Prudent Investors Network Inc.10,337$117K0.0%N/A0.000% 5/15/2024 Whitebox Advisors LLC44,590$504K0.0%N/A0.000% 5/14/2024 Robinson Capital Management LLC132,742$1.46M0.5%-21.2%0.000% Trump Predicts Dollar Downfall (Ad)READ THIS VERY CAREFULLY: If you have $100,000 or more saved for retirement, this may make you VERY angry... This is what President Trump said: "Our currency is crashing and will soon no longer be the world standard, which will be our greatest defeat, frankly, in 200 years." Why Would He Say This?Claim your free, no-strings-attached 2025 Ultimate Guide to Gold IRAs right now.5/10/2024 City of London Investment Management Co. Ltd.392,511$4.44M0.4%-13.4%0.000% 5/1/2024 Matisse Capital21,414$242K0.1%-82.4%0.000% 4/30/2024 Fountainhead AM LLC28,292$320K0.1%-6.0%0.000% 4/24/2024 Blue Bell Private Wealth Management LLC13,159$149K0.0%+1,362.1%0.000% 4/15/2024 Kingswood Wealth Advisors LLC27,835$315K0.0%+62.0%0.000% 3/27/2024 Nomura Holdings Inc.21,250$225K0.0%N/A0.000% (Data available from 1/1/2016 forward) MIO Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of MIO shares? During the previous two years, 30 institutional investors and hedge funds held shares of Pioneer Municipal High Income Opportunities Fund. The most heavily invested institutionals were Sit Investment Associates Inc. ($30.01M), Saba Capital Management L.P. ($24.67M), Rivernorth Capital Management LLC ($14.05M), Pathstone Holdings LLC ($7.51M), Guggenheim Capital LLC ($5.19M), Wells Fargo & Company MN ($4.63M), and Almitas Capital LLC ($2.53M).Learn more on MIO's institutional investors. Which institutional investors have been buying Pioneer Municipal High Income Opportunities Fund stock? Of the 22 institutional investors that purchased Pioneer Municipal High Income Opportunities Fund stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Rivernorth Capital Management LLC ($740.21K), Saba Capital Management L.P. ($247.38K), Sit Investment Associates Inc. ($220.20K), Hennion & Walsh Asset Management Inc. ($133.17K), Almitas Capital LLC ($128.46K), Whitebox Advisors LLC ($114.61K), and Noble Wealth Management PBC ($35.78K). How much institutional buying is happening at Pioneer Municipal High Income Opportunities Fund? Institutional investors have bought a total of 1,868,418 shares in the last 24 months. This purchase volume represents approximately $22.22M in transactions. Which Pioneer Municipal High Income Opportunities Fund major shareholders have been selling company stock? Of the 12 institutional investors that sold Pioneer Municipal High Income Opportunities Fund stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: City of London Investment Management Co. Ltd. ($339.05K), Matisse Capital ($100.14K), Robinson Capital Management LLC ($35.80K), Bank of New York Mellon Corp ($32.32K), Pathstone Holdings LLC ($24.96K), Fountainhead AM LLC ($20.44K), and Almitas Capital LLC ($16.19K). How much institutional selling is happening at Pioneer Municipal High Income Opportunities Fund? Institutional investors have sold a total of 591,943 shares in the last 24 months. This volume of shares sold represents approximately $6.85M in transactions. This page (NYSE:MIO) was last updated on 5/24/2025 by MarketBeat.com Staff From Our PartnersTrump Predicts Dollar DownfallREAD THIS VERY CAREFULLY: If you have $100,000 or more saved for retirement, this may make you VERY angry... ...Augusta Precious Metals | SponsoredWatch This Robotics Demo Before July 23rdJeff Brown, the tech legend who picked shares of Nvidia in 2016 before they jumped by more than 22,000%... ...Brownstone Research | Sponsored$19 for a FULL YEAR of stock picks?!Invest in Musk's AI Play With Just $100 You don't need deep pockets to ride the next wave of AI wealth. ...Behind the Markets | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...Altimetry | SponsoredBanks aren’t ready for this altcoin—are you?While everyone's distracted by Bitcoin's moves, a stealth revolution is underway. 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