NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) IPO — S-1 Filing, Stock & Insider Activity

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND IPO — Status & S-1 Filing

Track every registration update on the InsiderAlpha IPO tracker.

Updated Jul 16, 2026 · Last SEC filing 2026-06-29

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) has filed 2 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-29. InsiderAlpha tracks every NMZ SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ)

SEC CIK0001266585

90-Day SEC Filing Activity

Form 4 filings (90d)2
Latest Form 4 filing2026-06-29

Recent NMZ Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
MOSCHNER ALBIN FInsiderS — Open-market sale1.1K$10.35$11KSEC
MOSCHNER ALBIN FInsiderS — Open-market sale1.8K$10.37$19KSEC
WELLS FARGO COMPANY/MNInsiderJ — Other acquisition / disposition4.5K——SEC
Siffermann William AVice PresidentP — Open-market purchase100$10.48$1KSEC
BANK OF AMERICA CORP /DE/10% OwnerP — Open-market purchase6.4K$10.56$68KSEC
BANK OF AMERICA CORP /DE/10% OwnerS — Open-market sale6.4K$10.63$68KSEC
BANK OF AMERICA CORP /DE/10% OwnerS — Open-market sale190$10.62$2KSEC
BANK OF AMERICA CORP /DE/10% OwnerP — Open-market purchase190$10.62$2KSEC
BANK OF AMERICA CORP /DE/10% OwnerS — Open-market sale10.8K$10.56$114KSEC
BANK OF AMERICA CORP /DE/10% OwnerP — Open-market purchase10.8K$10.64$115KSEC
BANK OF AMERICA CORP /DE/InsiderP — Open-market purchase75$11.54$866SEC
BANK OF AMERICA CORP /DE/InsiderS — Open-market sale75$11.54$866SEC
BANK OF AMERICA CORP /DE/InsiderP — Open-market purchase7.0K$13.54$95KSEC
BANK OF AMERICA CORP /DE/InsiderS — Open-market sale100$13.53$1KSEC
BANK OF AMERICA CORP /DE/InsiderS — Open-market sale1.0K$13.53$14KSEC

All transactions sourced from SEC EDGAR Form 4 filings for NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ). Updated in real time as new filings are submitted to the SEC.

Most-Active NMZ Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
MOSCHNER ALBIN F2$30K
WELLS FARGO COMPANY/MN1—

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in NMZ insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

NMZ Insider Trading — FAQ

What is the latest insider trade for NMZ?
NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) had 2 insider filings in the last 90 days, with the most recent on 2026-06-29. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying NMZ stock?
0 insider purchases of NMZ were filed in the last 90 days.
How many insiders are selling NMZ stock?
0 insider sales of NMZ were filed in the last 90 days.
Where can I see NMZ SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every NMZ SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live NMZ dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.