Pioneer Municipal High Income Opportunities Fund Inc.
Annual Report by Investment Company (Form N-CSR)
7/9
Pioneer Municipal High Income Opportunities Fund Inc.
Monthly Portfolio Investments Report (Form NPORT-P)
6/27
Pioneer Municipal High Income Opportunities Fund Inc.
Statement of Changes in Beneficial Ownership (Form 4)
5/8
Pioneer Municipal High Income Opportunities Fund Inc.
Statement of Changes in Beneficial Ownership (Form 4)
5/1
Pioneer Municipal High Income Opportunities Fund Inc.
Statement of Changes in Beneficial Ownership (Form 4)
4/24
Pioneer Municipal High Income Opportunities Fund Inc.
Statement of Changes in Beneficial Ownership (Form 4)
4/22
Pioneer Municipal High Income Opportunities Fund Inc.
Statement of Changes in Beneficial Ownership (Form 4)
4/14
Pioneer Municipal High Income Opportunities Fund Inc.
Statement of Changes in Beneficial Ownership (Form 4)
4/10
Pioneer Municipal High Income Opportunities Fund Inc.
Statement of Changes in Beneficial Ownership (Form 4)
4/8
Pioneer Municipal High Income Opportunities Fund Inc.
Initial Statement of Beneficial Ownership (Form 3)
4/4