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, Q3 2025
Institutional positions in Pioneer Municipal High Income Opportunities Fund, Inc. as of Sep 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, and 13F filings after Q2 2025 list far fewer holders. See Q2 2025
- Institutional holders
- 1
- −30 vs. Q2 2025
- Shares held
- 1.06K
- −9.19M (−100.0%) vs. Q2 2025
- Total value
- $12.1K
- −$108.4M (−100.0%) vs. Q2 2025
- New holders
- 0
- 0 more added
- Sold out
- 30
- 1 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Pioneer Municipal High Income Opportunities Fund, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Advisor Group Holdings, Inc. | 1,060 | $12.1K | 0.00% | −233−18.0% | Reduced |
| Sit Investment Associates Inc | 0 | $0 | 0.00% | −2,563,916−100.0% | Sold out |
| Saba Capital Management, L.P. | 0 | $0 | 0.00% | −2,161,352−100.0% | Sold out |
| Almitas Capital LLC | 0 | $0 | 0.00% | −790,809−100.0% | Sold out |
| Rivernorth Capital Management, LLC | 0 | $0 | 0.00% | −752,523−100.0% | Sold out |
| Morgan Stanley | 0 | $0 | 0.00% | −586,927−100.0% | Sold out |
| Karpus Management, Inc. | 0 | $0 | 0.00% | −496,367−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −408,896−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −351,191−100.0% | Sold out |
| Hennion & Walsh Asset Management, Inc. | 0 | $0 | 0.00% | −252,242−100.0% | Sold out |
| Pathstone Holdings, LLC | 0 | $0 | 0.00% | −137,168−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −105,194−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −103,000−100.0% | Sold out |
| Van Eck Associates Corp | 0 | $0 | 0.00% | −80,738−100.0% | Sold out |
| Bulldog Investors, LLP | 0 | $0 | 0.00% | −80,353−100.0% | Sold out |
| Absolute Investment Advisers LLC | 0 | $0 | 0.00% | −59,120−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −57,959−100.0% | Sold out |
| Kovitz Investment Group Partners, LLC | 0 | $0 | 0.00% | −40,562−100.0% | Sold out |
| Blue Bell Private Wealth Management, LLC | 0 | $0 | 0.00% | −23,544−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −20,654−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −18,550−100.0% | Sold out |
| Auxier Asset Management | 0 | $0 | 0.00% | −17,208−100.0% | Sold out |
| Melfa Wealth Management, LLC | 0 | $0 | 0.00% | −16,850−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −10,665−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −10,314−100.0% | Sold out |
| Wellspring Financial Advisors, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −9,520−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −8,372−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −6,930−100.0% | Sold out |
| Cohen & Steers, Inc. | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Comerica Bank | 0 | $0 | 0.00% | −3,150−100.0% | Sold out |