NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND

SEC insider activity covers quarterly filings through June 30, 2026. Later filings are not included. Reported roles do not establish current employment or current holdings. SEC filing documents, sections and filing-text search cover filings dated January 1, 2000 onward. Earlier filings are deferred until after launch.

NMZ

organization

Jurisdiction: USLegal Form: 8888

ACTIVE

LEI: BN7VUB6JBYC7TTWZRZ58

Also known as: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND, Nuveen Municipal High Income Opportunity Fund 2

Financial Summary

SEC Insider

$20.3M

114 transactions

Summary

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) is an organization. It is a subsidiary of NUVEEN FUND ADVISORS, LLC.

Recent Insider Transactions

As filed, including amendments; not net cash flow or current holdings. Joint reports count once. Totals cover known values only.

Buys: $1.3MSales: $959K19 insiders

Date	Insider	Type	Value
2025-09-17	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Buy	$115K
2025-09-17	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Sell	$114K
2025-10-10	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Sell	$69K
2025-10-10	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Buy	$68K
2026-06-22	MOSCHNER ALBIN F	Sell	$19K
2026-06-22	MOSCHNER ALBIN F	Sell	$11K
2025-12-19	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Sell	$11K
2025-12-19	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Buy	$10K
2025-03-21	Siffermann William A(Vice President)	Buy	$3K
2025-10-09	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Buy	$2K
2025-10-09	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Sell	$2K
2026-03-05	Siffermann William A(Vice President)	Buy	$1K
2024-12-03	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Buy	$866.25
2025-01-15	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Sell	$54.7
2025-01-15	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Buy	$53.95
2025-01-15	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Sell	$10.96
2025-01-15	Joint reporting: BANK OF AMERICA CORP /DE/; MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	Buy	$10.79
2026-04-27	Joint reporting: WELLS FARGO & COMPANY/MN; Wells Fargo Municipal Capital Strategies, LLC	J	—
2025-12-11	Joint reporting: BANK OF AMERICA CORP /DE/; Banc of America Preferred Funding Corp	J	—
2025-12-11	Joint reporting: BANK OF AMERICA CORP /DE/; Banc of America Preferred Funding Corp	J	—

Legal entity: GLEIF

SEC filings: SEC EDGAR

Activity data: SEC EDGAR

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND — Contributions, Lobbying & Contracts | Poliscope