NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ)

Latest Insider Confidence Score

2026Q1

52.8
Bullish

Company insider confidence (by quarter)

2003Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Miller John V Other 25,950 Mar 23, 2015
Nuveen Advisory Corp — 7,000 Oct 18, 2004
Bank Of America Na — 6,170 Jun 9, 2009
Meyers William T. — 2,435.3 Feb 28, 2018
Wells Fargo & Company/Mn — 1,700 Apr 12, 2023

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 5, 2026 Mar 6, 2026 Siffermann William A President Buy 90.0 +100 12.29% ✗ $1K
Feb 23, 2026 Castro Joseph EVP, Chief Risk & Compliance Neutral 52.5 - 0.00% ✗ -
Dec 19, 2025 Dec 22, 2025 BANK OF AMERICA CORP /DE/ 10% Owner Sell 52.5 - 0.00% ✗ $220.9
Dec 11, 2025 Dec 15, 2025 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 52.5 - 0.00% ✗ -
Nov 5, 2025 Page Robert Tanner VP and Treasurer Neutral 52.5 - 0.00% ✗ -
Oct 10, 2025 Oct 14, 2025 BANK OF AMERICA CORP /DE/ 10% Owner Sell 52.5 - 0.00% ✗ $483
Oct 9, 2025 Oct 10, 2025 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 52.5 - 0.00% ✗ -
Mar 21, 2025 Mar 24, 2025 Siffermann William A President Buy 90.0 +300 96.83% ✗ $3.3K
Dec 3, 2024 Cardella Marc VP and Controller Neutral 52.5 - 0.00% ✗ -
Mar 11, 2024 Ramsay Mary Beth President Neutral 52.5 - 0.00% ✗ -
Mar 8, 2024 Nelson James N III President Neutral 52.5 - 0.00% ✗ -
Jan 11, 2024 STARR LOREN M Other Neutral 52.5 - 0.00% ✗ -
Jan 11, 2024 KENNY THOMAS J Other Neutral 52.5 - 0.00% ✗ -
Jan 11, 2024 Forrester Michael A Other Neutral 52.5 - 0.00% ✗ -
Jan 11, 2024 Boateng Joseph A Other Neutral 52.5 - 0.00% ✗ -
Oct 26, 2023 Oct 26, 2023 Jones Nathaniel T. President Buy 90.0 +1,100 100.00% ✗ $9.2K
Oct 25, 2023 Oct 25, 2023 TOTH TERENCE J Trustee Sell 26.3 -4,208 -100.00% ✗ $35.8K
Aug 10, 2023 Aug 10, 2023 MOSCHNER ALBIN F Other Buy 95.0 +4,900 326.67% ✗ $50.9K
Apr 24, 2023 Apr 26, 2023 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 90.0 +1,000 114.94% ✗ -
Apr 24, 2023 Apr 26, 2023 DEUTSCHE BANK AG\ 10% Owner Neutral 27.5 -1,000 -100.00% ✗ -
Apr 12, 2023 WELLS FARGO & COMPANY/MN 10% Owner Neutral 52.5 - 0.00% ✗ -
Apr 3, 2023 Apr 5, 2023 DEUTSCHE BANK AG\ 10% Owner Neutral 27.5 -1,700 -62.96% ✗ -
Nov 28, 2022 Nov 28, 2022 TOTH TERENCE J Trustee Buy 91.3 +2,370 128.94% ✗ $26K
Aug 15, 2022 Stenersen Trey III President Neutral 52.5 - 0.00% ✗ -
Jun 9, 2022 Jun 13, 2022 DEUTSCHE BANK AG\ 10% Owner Neutral 90.0 +1,000 58.82% ✗ -
Jun 8, 2022 Black Brett Chief Compliance Officer Neutral 52.5 - 0.00% ✗ -
May 26, 2022 May 26, 2022 MOSCHNER ALBIN F Other Buy 91.3 +1,500 100.00% ✗ $18.5K
Apr 21, 2022 McCann John M. President Neutral 52.5 - 0.00% ✗ -
Jul 8, 2021 Medero Joanne Other Neutral 52.5 - 0.00% ✗ -
Jul 8, 2021 Lancellotta Amy B.R. Other Neutral 52.5 - 0.00% ✗ -
Apr 28, 2021 DEUTSCHE BANK AG\ 10% Owner Neutral 52.5 - 0.00% ✗ -
Nov 25, 2020 Thornton Matthew III Other Neutral 52.5 - 0.00% ✗ -
Mar 6, 2020 Morgan Deann President Neutral 52.5 - 0.00% ✗ -
Oct 17, 2019 Meissner Jon Scott President Neutral 52.5 - 0.00% ✗ -
Aug 16, 2019 Longerstaey Jacques M President Neutral 52.5 - 0.00% ✗ -
Aug 16, 2019 Lockhart Brian J President Neutral 52.5 - 0.00% ✗ -
Apr 18, 2019 Wickerham E. Scott President Neutral 52.5 - 0.00% ✗ -
Nov 15, 2018 Nov 16, 2018 Siffermann William A President Buy 90.0 +150 93.86% ✗ $1.8K
Feb 28, 2018 Winget Demark L President Neutral 52.5 - 0.00% ✗ -
Feb 28, 2018 Meyers William T. President Neutral 52.5 - 0.00% ✗ -
Feb 26, 2018 Feb 27, 2018 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 52.5 - 0.00% ✗ -
Aug 11, 2017 Siffermann William A President Neutral 52.5 - 0.00% ✗ -
Aug 11, 2017 PERRY MICHAEL A President Neutral 52.5 - 0.00% ✗ -
Aug 8, 2017 Aug 10, 2017 TOTH TERENCE J Trustee Buy 91.3 +1,838 100.00% ✗ $25K
Aug 10, 2017 Ryan Timothy T Other Neutral 52.5 - 0.00% ✗ -
Aug 9, 2017 Candido Stephen Other Neutral 52.5 - 0.00% ✗ -
Jul 10, 2017 Robert Young L Other Neutral 52.5 - 0.00% ✗ -
May 18, 2017 May 18, 2017 Nuveen Fund Advisors, LLC Other Sell 22.5 -6,794 -100.00% ✗ $90.5K
May 18, 2017 Nuveen Fund Advisors, LLC Other Neutral 52.5 - 0.00% ✗ -
Dec 7, 2016 Dec 9, 2016 SCHNEIDER WILLIAM J Other Sell 22.5 -14,900 -100.00% ✗ $192.5K
Oct 11, 2016 Rohrbacher Christopher M. President Neutral 52.5 - 0.00% ✗ -
Jul 8, 2016 MOSCHNER ALBIN F Other Neutral 52.5 - 0.00% ✗ -
Jun 24, 2016 Jones Nathaniel T. President Neutral 52.5 - 0.00% ✗ -
Feb 24, 2016 WOLFF MARGARET L. Other Neutral 52.5 - 0.00% ✗ -
Dec 15, 2015 Dec 17, 2015 SCHNEIDER WILLIAM J Other Buy 95.0 +14,900 100.00% ✗ $201.9K
Aug 14, 2015 Hlavacek Sherri A President Neutral 52.5 - 0.00% ✗ -
Jul 1, 2015 Jul 2, 2015 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 52.5 - 0.00% ✗ -
Mar 19, 2015 Mar 23, 2015 MILLER JOHN V Other Buy 91.3 +2,550 10.90% ✗ $34.9K
Mar 5, 2015 LAMB DAVID J President Neutral 52.5 - 0.00% ✗ -
Oct 2, 2014 Oct 6, 2014 MILLER JOHN V Other Buy 86.3 +1,400 6.36% ✗ $18.1K
Aug 29, 2014 Sep 3, 2014 MILLER JOHN V Other Buy 91.3 +2,500 12.82% ✗ $32.3K
Mar 10, 2014 Mar 11, 2014 MILLER JOHN V Other Buy 95.0 +4,500 30.00% ✗ $56.6K
Jan 6, 2014 Jan 8, 2014 ROMANS SCOTT R Other Sell 22.5 -4,197 -100.00% ✗ $50.9K
Dec 17, 2013 Dec 18, 2013 MILLER JOHN V Other Buy 91.3 +2,500 20.00% ✗ $28.6K
Oct 24, 2013 Oct 28, 2013 ROMANS SCOTT R Other Buy 91.3 +4,145 100.00% ✗ $49.3K
Oct 21, 2013 Oct 23, 2013 MILLER JOHN V Other Buy 95.0 +4,500 56.25% ✗ $53.2K
Aug 26, 2013 Sep 18, 2013 MILLER JOHN V Other Buy 91.3 +4,000 100.00% ✗ $45.7K
Sep 10, 2013 SCHREIER THOMAS S JR Other Neutral 52.5 - 0.00% ✗ -
Sep 10, 2013 Nelson John Kevin Other Neutral 52.5 - 0.00% ✗ -
Jul 26, 2013 Slager Joel T. President Neutral 52.5 - 0.00% ✗ -
Jul 15, 2013 Jul 17, 2013 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 90.0 +360 70.59% ✗ -
Jul 3, 2013 Jul 5, 2013 MILLER JOHN V Other Buy 95.0 +4,000 100.00% ✗ $50.5K
Dec 28, 2012 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 52.5 - 0.00% ✗ -
Aug 25, 2011 Hlavin Steven M. Other Neutral 52.5 - 0.00% ✗ -
May 5, 2011 Jul 11, 2011 BANK OF AMERICA CORP /DE/ 10% Owner Buy 52.5 - 0.00% ✗ $3.7K
Jun 17, 2011 Jun 21, 2011 CITIGROUP INC 10% Owner Sell 15.0 -721 -100.00% ✗ $18M
Jun 17, 2011 Jun 21, 2011 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 27.5 -589 -100.00% ✗ -
Jan 12, 2011 STRINGER VIRGINIA Other Neutral 52.5 - 0.00% ✗ -
Jan 12, 2011 Prudhomme Kathleen L President Neutral 52.5 - 0.00% ✗ -
Jan 11, 2011 WHITE DOUGLAS J Other Neutral 52.5 - 0.00% ✗ -
Jan 11, 2011 Hamilton Michael S. Other Neutral 52.5 - 0.00% ✗ -
Jan 11, 2011 DRAHN CHRISTOPHER L Other Neutral 52.5 - 0.00% ✗ -
Aug 5, 2010 McCarthy Michelle Ann President Neutral 52.5 - 0.00% ✗ -
Nov 27, 2009 Grace Scott S President Neutral 52.5 - 0.00% ✗ -
Jun 9, 2009 BANK OF AMERICA CORP /DE/ 10% Owner Neutral 52.5 - 0.00% ✗ -
Apr 1, 2009 Ruane James President Neutral 52.5 - 0.00% ✗ -
Apr 1, 2009 Mino Gregory T. President Neutral 52.5 - 0.00% ✗ -
Apr 1, 2009 Huffman William T. Jr. President Neutral 52.5 - 0.00% ✗ -
Apr 1, 2009 Cook Margo L. President Neutral 52.5 - 0.00% ✗ -
Apr 1, 2009 Close Daniel Other Neutral 52.5 - 0.00% ✗ -
Apr 1, 2009 Arriaga Nizida President Neutral 52.5 - 0.00% ✗ -
Dec 17, 2008 Dec 19, 2008 SCHNEIDER WILLIAM J Director Sell 26.3 -6,285 -100.00% ✗ $41.9K
Dec 10, 2008 CITIGROUP INC 10% Owner Neutral 52.5 - 0.00% ✗ -
Jul 2, 2008 TOTH TERENCE J Director Neutral 52.5 - 0.00% ✗ -
Jun 9, 2008 Rohrbacher Christopher M. President Neutral 52.5 - 0.00% ✗ -
Jan 29, 2008 Jan 30, 2008 SCHNEIDER WILLIAM J Director Buy 91.3 +2,500 66.05% ✗ $40K
Jan 25, 2008 Winget Demark L President Neutral 52.5 - 0.00% ✗ -
Dec 27, 2007 Dec 28, 2007 MILLER JOHN V V.P. Buy 91.3 +1,000 26.09% ✗ $14.3K
Dec 24, 2007 Dec 26, 2007 MILLER JOHN V V.P. Buy 91.3 +2,000 109.11% ✗ $28.6K
Nov 26, 2007 Nov 27, 2007 MILLER JOHN V V.P. Buy 91.3 +1,333 266.60% ✗ $20.4K