Pioneer Municipal High Income Opportunities Fund, Inc.
MIODelisted Aug 27, 2025- SEC CIK
- 0001864290
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, Q2 2025
Institutional positions in Pioneer Municipal High Income Opportunities Fund, Inc. as of Jun 30, 2025. 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
MIO is no longer listed, so this page shows Q2 2025. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 31
- −2 vs. Q1 2025
- Shares held
- 9.19M
- −21.5K (−0.2%) vs. Q1 2025
- Total value
- $108.4M
- −$451.4K (−0.4%) vs. Q1 2025
- New holders
- 9
- 11 more added
- Sold out
- 11
- 9 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 1 | $12.1K |
| Q2 2025 | 31 | $108.4M |
| Q1 2025 | 34 | $109.3M |
| Q4 2024 | 31 | $109.1M |
| Q3 2024 | 29 | $102.7M |
| Q2 2024 | 32 | $106.4M |
| Q1 2024 | 31 | $84.3M |
| Q4 2023 | 33 | $76.5M |
| Q3 2023 | 29 | $67.8M |
| Q2 2023 | 24 | $70.0M |
| Q1 2023 | 25 | $64.8M |
| Q4 2022 | 26 | $60.4M |
| Q3 2022 | 25 | $49.5M |
| Q2 2022 | 26 | $57.4M |
| Q1 2022 | 24 | $63.4M |
| Q4 2021 | 23 | $71.4M |
| Q3 2021 | 7 | $22.8M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding Pioneer Municipal High Income Opportunities Fund, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sit Investment Associates Inc | 2,563,916 | $30.3M | 0.65% | +18,874+0.7% | Added |
| Saba Capital Management, L.P. | 2,161,352 | $25.5M | 0.70% | +47,715+2.3% | Added |
| Almitas Capital LLC | 790,809 | $9.33M | 2.35% | +575,939+268.0% | Added |
| Rivernorth Capital Management, LLC | 752,523 | $8.88M | 0.49% | −823,328−52.2% | Reduced |
| Morgan Stanley | 586,927 | $6.93M | 0.00% | −107,555−15.5% | Reduced |
| Karpus Management, Inc. | 496,367 | $5.86M | 0.19% | +496,367 | New |
| Guggenheim Capital LLC | 408,896 | $4.82M | 0.04% | −21,049−4.9% | Reduced |
| Wells Fargo & Company | 351,191 | $4.14M | 0.00% | +4,759+1.4% | Added |
| Hennion & Walsh Asset Management, Inc. | 252,242 | $2.98M | 0.12% | +119,077+89.4% | Added |
| Pathstone Holdings, LLC | 137,168 | $1.62M | 0.01% | −405,148−74.7% | Reduced |
| UBS Group AG | 105,194 | $1.24M | 0.00% | +65,493+165.0% | Added |
| Royal Bank of Canada | 103,000 | $1.22M | 0.00% | +20,000+24.1% | Added |
| Van Eck Associates Corp | 80,738 | $953.0K | 0.00% | +276+0.3% | Added |
| Bulldog Investors, LLP | 80,353 | $948.2K | 0.24% | +80,353 | New |
| Absolute Investment Advisers LLC | 59,120 | $697.6K | 0.09% | +59,120 | New |
| Invesco Ltd. | 57,959 | $683.9K | 0.00% | −1,770−3.0% | Reduced |
| Kovitz Investment Group Partners, LLC | 40,562 | $478.6K | 0.00% | +40,562 | New |
| Blue Bell Private Wealth Management, LLC | 23,544 | $277.8K | 0.05% | +405+1.8% | Added |
| Quarry LP | 20,654 | $243.7K | 0.06% | +20,654 | New |
| Bank of New York Mellon Corp | 18,550 | $218.9K | 0.00% | −16,881−47.6% | Reduced |
| Auxier Asset Management | 17,208 | $203.1K | 0.03% | 00.0% | Unchanged |
| Melfa Wealth Management, LLC | 16,850 | $198.8K | 0.13% | 00.0% | Unchanged |
| Raymond James Financial Inc | 10,665 | $125.8K | 0.00% | −2,690−20.1% | Reduced |
| Signaturefd, LLC | 10,314 | $121.7K | 0.00% | +129+1.3% | Added |
| Wellspring Financial Advisors, LLC | 10,000 | $118.0K | 0.01% | +10,000 | New |
| Wolverine Asset Management LLC | 9,520 | $112.3K | 0.00% | +9,520 | New |
| Steward Partners Investment Advisory, LLC | 8,372 | $98.8K | 0.00% | −57−0.7% | Reduced |
| Ancora Advisors, LLC | 6,930 | $81.8K | 0.00% | +6,930 | New |
| Cohen & Steers, Inc. | 5,000 | $59.0K | 0.00% | +5,000 | New |
| Comerica Bank | 3,150 | $37.2K | 0.00% | −8−0.3% | Reduced |
| Advisor Group Holdings, Inc. | 1,293 | $15.3K | 0.00% | +233+22.0% | Added |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −75,356−100.0% | Sold out |
| Thomas J. Herzfeld Advisors, Inc. | 0 | $0 | 0.00% | −52,597−100.0% | Sold out |
| Avantax Advisory Services, Inc. | 0 | $0 | 0.00% | −47,320−100.0% | Sold out |
| Catalina Capital Group, LLC | 0 | $0 | 0.00% | −18,491−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −15,106−100.0% | Sold out |
| Fountainhead AM, LLC | 0 | $0 | 0.00% | −10,340−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −2,500−100.0% | Sold out |
| Atala Financial Inc | 0 | $0 | 0.00% | −1,880−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −652−100.0% | Sold out |
| WPG Advisers, LLC | 0 | $0 | 0.00% | −85−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −44−100.0% | Sold out |
| Noble Wealth Management PBC | – | – | – | – | Not filed |