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Nuveen Municipal High Income Opportunity Fund

NMZ
Exchange
NYSE
SEC CIK
0001266585

In the last 90 days, Nuveen Municipal High Income Opportunity Fund insiders filed 3 open-market purchases and 4 sales; 213 institutions reported holding it in 13F filings for Q2 2026, worth $361.5M in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Nuveen Municipal High Income Opportunity Fund insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
3 filings
1 insider, $490.29 in total
Open-market sells
4 filings
2 insiders, $30.7K in total
Insiders trading
2
Net value
−$30.2K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Nuveen Municipal High Income Opportunity Fund, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Nuveen Municipal High Income Opportunity Fund
NameTitleLast reported holdingLast filingFilings, past year
Bank Of America Corp10% Owner0IndirectAug 6, 20267
Merrill Lynch, Pierce, Fenner & Smith Inc.10% Owner0IndirectAug 6, 20266
Moschner Albin FOther: Trustee736IndirectJun 29, 20261
Wells Fargo & Company10% Owner4,504IndirectApr 29, 20261
Wells Fargo Municipal Capital Strategies, LLC10% Owner4,504IndirectApr 29, 20261
Siffermann William AVice President914Mar 6, 20261
Banc of America Preferred Funding Corp10% Owner1,000IndirectDec 15, 20251
Bofa Securities, Inc.10% Owner5,050IndirectDec 13, 20240
Jones Nathaniel T.Vice President and Treasurer1,100Oct 26, 20230
Toth Terence JTrustee0Oct 25, 20230
Deutsche Bank AG10% Owner0IndirectApr 26, 20230
DB Municipal Holdings LLC10% Owner0IndirectApr 26, 20230

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 6, 2026 (view filing)1:39 PM ETAug 42 daysBank Of America Corp and 1 other10% OwnerPPurchase+3$10.19+$30.56New position3 after3 lots
Aug 6, 2026 (view filing)1:39 PM ETAug 42 daysBank Of America Corp and 1 other10% OwnerSSale−3$10.26−$30.79−100.0%0 after3 lots
Aug 4, 2026 (view filing)2:48 PM ETAug 31 dayBank Of America Corp and 1 other10% OwnerPPurchase+36$10.21+$367.61New position36 after4 lots
Aug 4, 2026 (view filing)2:48 PM ETJul 31-Aug 34 daysBank Of America Corp and 1 other10% OwnerSSale−36$10.27−$369.58−100.0%0 after4 lots
Jul 28, 2026 (view filing)1:40 PM ETJul 244 daysBank Of America Corp and 1 other10% OwnerPPurchase+9$10.24+$92.12New position9 after
Jul 28, 2026 (view filing)1:40 PM ETJul 244 daysBank Of America Corp and 1 other10% OwnerSSale−9$10.18−$91.58−100.0%0 after
Jun 29, 2026 (view filing)Jun 227 daysLateMoschner Albin FOther: TrusteeSSale−1.81K$10.37−$18.8K−32.4%3.79K after
Jun 29, 2026 (view filing)Jun 227 daysLateMoschner Albin FOther: TrusteeSSale−1.10K$10.35−$11.4K−59.9%736 after
Mar 6, 2026 (view filing)Mar 51 daySiffermann William AVice PresidentPPurchase+100$10.48+$1.05K+12.3%913.97 after
Dec 22, 2025 (view filing)5:14 PM ETDec 193 daysBank Of America Corp and 1 other10% OwnerPPurchase+1.00K$10.32+$10.3KNew position1.00K after
Dec 22, 2025 (view filing)5:14 PM ETDec 193 daysBank Of America Corp and 1 other10% OwnerSSale−1.00K$10.54−$10.5K−100.0%0 after
Oct 14, 2025 (view filing)1:37 PM ETOct 104 daysBank Of America Corp and 1 other10% OwnerPPurchase+6.44K$10.56+$68.0KNew position6.44K after
Oct 14, 2025 (view filing)1:37 PM ETOct 104 daysBank Of America Corp and 1 other10% OwnerSSale−6.44K$10.64−$68.5K−100.0%0 after
Oct 10, 2025 (view filing)4:07 PM ETOct 91 dayBank Of America Corp and 1 other10% OwnerPPurchase+190$10.62+$2.02KNew position190 after
Oct 10, 2025 (view filing)4:07 PM ETOct 91 dayBank Of America Corp and 1 other10% OwnerSSale−190$10.62−$2.02K−100.0%0 after
Sep 19, 2025 (view filing)4:31 PM ETSep 172 daysBank Of America Corp and 1 other10% OwnerPPurchase+10.8K$10.65+$114.8KNew position10.8K after
Sep 19, 2025 (view filing)4:31 PM ETSep 172 daysBank Of America Corp and 1 other10% OwnerSSale−10.8K$10.56−$113.9K−100.0%0 after
Mar 24, 2025 (view filing)Mar 213 daysSiffermann William AVice PresidentPPurchase+300$11.08+$3.32K+96.8%609.81 after
Jan 17, 2025 (view filing)4:53 PM ETJan 152 daysBank Of America Corp and 1 other10% OwnerPPurchase+6$10.79+$64.74New position6 after2 lots
Jan 17, 2025 (view filing)4:53 PM ETJan 152 daysBank Of America Corp and 1 other10% OwnerSSale−6$10.94−$65.66−100.0%0 after2 lots
Dec 13, 2024 (view filing)4:23 PM ETJun 5, 2014-Nov 8, 20163,844 daysLateBank Of America Corp and 2 others10% OwnerSSale−8.14K$13.80−$112.3K−61.7%5.05K after18 lots
Dec 13, 2024 (view filing)4:23 PM ETJun 10, 2014-Nov 8, 20163,839 daysLateBank Of America Corp and 2 others10% OwnerPPurchase+13.2K$13.74+$181.2KNew position7.00K after12 lots
Dec 6, 2024 (view filing)6:48 PM ETDec 33 daysLateBank Of America Corp and 1 other10% OwnerPPurchase+75$11.55+$865.88New position75 after
Dec 6, 2024 (view filing)6:48 PM ETDec 33 daysLateBank Of America Corp and 1 other10% OwnerSSale−75$11.54−$865.54−100.0%0 after
Oct 26, 2023 (view filing)Oct 26Same dayJones Nathaniel T.Vice President and TreasurerPPurchase+1.10K$8.33+$9.16KNew position1.10K after
Oct 25, 2023 (view filing)Oct 25Same dayToth Terence JTrusteeSSale−4.21K$8.50−$35.8K−100.0%0 after5 lots
Aug 10, 2023 (view filing)Aug 10Same dayMoschner Albin FOther: TrusteePPurchase+4.10K$10.38+$42.6K+273.3%5.60K after
Aug 10, 2023 (view filing)Aug 10Same dayMoschner Albin FOther: TrusteePPurchase+800$10.40+$8.32KNew position800 after
Nov 28, 2022 (view filing)Nov 28Same dayToth Terence JTrusteePPurchase+2.37K$10.97+$26.0K+128.9%4.21K after2 lots
May 26, 2022 (view filing)May 26Same dayMoschner Albin FOther: TrusteePPurchase+1.50K$12.33+$18.5KNew position1.50K after