Pioneer Municipal High Income Opportunities Fund (MIO) Institutional Ownership $11.85 +0.02 (+0.14%) Closing price 06/13/2025 03:54 PM EasternExtended Trading$11.84 0.00 (-0.01%) As of 06/13/2025 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% Gold is soaring. Here’s how to get paid from it (Ad)Gold just broke through $3,300… And while the headlines shout about price targets, something even more powerful is happening behind the scenes… Some investors are using a little-known ETF to collect up to $1,152/month from gold's surge. No trading gold futures. No mining stocks. No vaults. Just a simple fund delivering monthly payouts — like clockwork.Click here to discover the income ETF behind it all.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 6/15/2025 by MarketBeat.com Staff From Our PartnersTrump’s treachery Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | SponsoredWhy July 22nd Could Mean Big Changes for Social SecurityIn a stunning move, President Trump has authorized an AI-led transformation of federal agencies, including Soc...Altimetry | SponsoredAn AI run of epic proportions is only getting startedI just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | SponsoredElon’s NEXT Big IPO?Cancel your internet TODAY!? Take your latest internet bill and light it on fire… then count the seconds it...Banyan Hill Publishing | SponsoredNew Rule Hits in July — The Smart Money Already MovedA little-known regulation quietly goes into effect this July. And it's already being exploited by Wall Stre...American Alternative | SponsoredTrump’s Exec Order #14154 could be a “Millionaire-Maker”Former Presidential Advisor, Jim Rickards, says Trump could “rewire our economy and hand millions of Americans...Paradigm Press | SponsoredBanks aren’t ready for this altcoin—are you?Donald Trump just fast-tracked TWO major crypto bills with an August deadline! Your window of opportunity i...Crypto 101 Media | SponsoredREVEALED FREE: Our top 3 stocks to own in 2025 and beyondEvery time Weiss Ratings flashed green like this, the average gain on each and every stock has been 303% (incl...Weiss Ratings | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Pioneer Municipal High Income Opportunities Fund, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Pioneer Municipal High Income Opportunities Fund With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.