Pioneer Municipal High Income Opportunities Fund, Inc.

CIK 1864290 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for Pioneer Municipal High Income Opportunities Fund, Inc..

Recent SEC filings

FiledFormAccession number
Aug 31, 2026N-8F NTC9999999997-26-001441
Aug 31, 2026N-PX0001864290-26-000001
Jul 30, 2026N-8F0001193125-26-326072
Jul 7, 2026N-CEN0000940400-26-026182
Apr 9, 202640-17G0001193125-26-149833
Apr 1, 2026NPORT-P0000940400-26-012929
Jan 6, 2026N-CSRS0001193125-26-004550
Dec 19, 2025NPORT-P0000940400-25-014051
Sep 26, 2025NPORT-P0000940400-25-002593
Sep 2, 202540001510281-25-000442
Sep 2, 2025SCHEDULE 13D/A0001062993-25-015131
Aug 27, 202525-NSE0000876661-25-000623
Aug 27, 2025N-PX0001864290-25-000004
Aug 14, 2025SCHEDULE 13G/A0001398344-25-015684
Jul 14, 2025N-CEN0001752724-25-167081
Jul 9, 2025N-CSR0001193125-25-157002
Jul 9, 2025DEFA14A0001683863-25-005640
Jun 27, 2025NPORT-P0001752724-25-160639
Jun 10, 2025DEF 14A0001193125-25-138495
May 20, 20258-K0001193125-25-122891
May 20, 2025PRE 14A0001193125-25-123226
May 9, 20258-K0001193125-25-116099
May 8, 20258-K0001193125-25-116083
May 8, 202540001510281-25-000284
May 1, 202540001510281-25-000260