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Pioneer Municipal High Income Opportunities Fund, Inc.

MIODelisted Aug 27, 2025

Pioneer Municipal High Income Opportunities Fund, Inc. was delisted on Aug 27, 2025; its insiders filed their last Form 4 on Sep 2, 2025; 31 institutions reported holding it in 13F filings for Q2 2025, worth $108.4M in total; no superinvestor held it.

13F holders, Q1 2024

Institutional positions in Pioneer Municipal High Income Opportunities Fund, Inc. as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
31
−2 vs. Q4 2023
Shares held
7.46M
+217.8K (+3.0%) vs. Q4 2023
Total value
$84.3M
+$7.80M (+10.2%) vs. Q4 2023
New holders
4
11 more added
Sold out
6
12 more reduced

Compare with Q4 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2024: 31 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 7 institutionsQ4 2021: 23 institutionsQ1 2022: 24 institutionsQ2 2022: 26 institutionsQ3 2022: 25 institutionsQ4 2022: 26 institutionsQ1 2023: 25 institutionsQ2 2023: 24 institutionsQ3 2023: 29 institutionsQ4 2023: 33 institutionsQ1 2024: 31 institutionsQ2 2024: 32 institutionsQ3 2024: 29 institutionsQ4 2024: 31 institutionsQ1 2025: 34 institutionsQ2 2025: 31 institutionsQ3 2025: 1 institutionQ4 2025: 0 institutionsQ1 2026: 0 institutionsQ2 2026: 0 institutions
Value heldQ1 2024: $84.3M
Q1 2021: $0Q2 2021: $0Q3 2021: $22.8MQ4 2021: $71.4MQ1 2022: $63.4MQ2 2022: $57.4MQ3 2022: $49.5MQ4 2022: $60.4MQ1 2023: $64.8MQ2 2023: $70.0MQ3 2023: $67.8MQ4 2023: $76.5MQ1 2024: $84.3MQ2 2024: $106.4MQ3 2024: $102.7MQ4 2024: $109.1MQ1 2025: $109.3MQ2 2025: $108.4MQ3 2025: $12.1KQ4 2025: $0Q1 2026: $0Q2 2026: $0
Institutions holding MIO and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20260$0
Q4 20250$0
Q3 20251$12.1K
Q2 202531$108.4M
Q1 202534$109.3M
Q4 202431$109.1M
Q3 202429$102.7M
Q2 202432$106.4M
Q1 202431$84.3M
Q4 202333$76.5M
Q3 202329$67.8M
Q2 202324$70.0M
Q1 202325$64.8M
Q4 202226$60.4M
Q3 202225$49.5M
Q2 202226$57.4M
Q1 202224$63.4M
Q4 202123$71.4M
Q3 20217$22.8M
Q2 20210$0
Q1 20210$0

Institutions, Q1 2024

Shares, value and share of portfolio for each institution holding Pioneer Municipal High Income Opportunities Fund, Inc.; share changes are against Q4 2023.

Institutions holding MIO in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Sit Investment Associates Inc2,124,007$24.0M0.55%+277,592+15.0%Added
Saba Capital Management, L.P.1,725,979$19.5M0.43%+116,255+7.2%Added
Morgan Stanley942,032$10.7M0.00%−25,597−2.6%Reduced
Pathstone Holdings, LLC667,066$7.54M0.04%+5,564+0.8%Added
Wells Fargo & Company438,650$4.96M0.00%−14,778−3.3%Reduced
City of London Investment Management Co Ltd392,511$4.44M0.37%−60,535−13.4%Reduced
Guggenheim Capital LLC208,604$2.36M0.02%+106,129+103.6%Added
1607 Capital Partners, LLC163,047$1.84M0.15%−109,200−40.1%Reduced
Almitas Capital LLC138,868$1.57M0.65%+17,076+14.0%Added
Van Eck Associates Corp133,493$1.51M0.00%+2,592+2.0%Added
Robinson Capital Management, LLC132,742$1.46M0.53%−35,800−21.2%Reduced
Bank of New York Mellon Corp47,639$538.8K0.00%+47,639New
Whitebox Advisors LLC44,590$504.3K0.02%+44,590New
RMB Capital Management, LLC35,000$395.9K0.01%00.0%Unchanged
Susquehanna International Group, LLP28,866$326.5K0.00%−6,982−19.5%Reduced
Fountainhead AM, LLC28,292$320.0K0.08%−1,794−6.0%Reduced
Kingswood Wealth Advisors, LLC27,835$314.8K0.04%+10,650+62.0%Added
UBS Group AG26,709$302.1K0.00%−27,014−50.3%Reduced
Catalina Capital Group, LLC22,785$257.7K0.11%00.0%Unchanged
Matisse Capital21,414$242.2K0.12%−100,138−82.4%Reduced
Melfa Wealth Management, LLC16,850$190.6K0.14%00.0%Unchanged
Wiley Bros.-Aintree Capital, LLC15,049$170.2K0.02%00.0%Unchanged
Blue Bell Private Wealth Management, LLC13,159$148.8K0.03%+12,259+1,362.1%Added
LPL Financial LLC12,547$141.9K0.00%+164+1.3%Added
Nomura Holdings Inc12,532$141.7K0.00%−8,718−41.0%Reduced
Prudent Investors Network10,337$116.9K0.04%+10,337New
Signaturefd, LLC9,685$109.5K0.00%+116+1.2%Added
Nelson, Van Denburg & Campbell Wealth Management Group, LLC8,874$100.4K0.00%+8,874New
Steward Partners Investment Advisory, LLC7,529$85.2K0.00%+868+13.0%Added
Comerica Bank3,476$39.3K0.00%−7−0.2%Reduced
Wolverine Asset Management LLC600$6.79K0.00%−12,972−95.6%Reduced
Raymond James & Associates0$00.00%−15,251−100.0%Sold out
HighTower Advisors, LLC0$00.00%−13,322−100.0%Sold out
Amundi0$00.00%−5,227−100.0%Sold out
US Bancorp0$00.00%−4,558−100.0%Sold out
Advisor Group Holdings, Inc.0$00.00%−749−100.0%Sold out
Bessemer Group Inc0$00.00%−298−100.0%Sold out