Companies / Nuveen Municipal High Income Opportunity Fund

Nuveen Municipal High Income Opportunity Fund

NYSE: NMZCIK 1266585CHICAGO, IL

Ownership

13F as of Jun 30, 2026

Share count not yet available for this company — ownership percentages can’t be computed.

Insiders 5

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Insider% of sharesShares
Moschner Albin F—
—4,524
Siffermann William AVice President
—914
Castro JosephEVP, Chief Risk & Compliance
——
Wells Fargo & COMPANY/MN10% owner
——
Wells Fargo Municipal Capital Strategies, LLC10% owner
——

Institutional holders 137

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HolderValue% of shares
Morgan Stanley$26.73M—
Guggenheim Capital LLC$21.21M—
UBS Group AG$20.70M—
Hennion & Walsh Asset Management, Inc.$11.62M—
LPL Financial LLC$11.42M—
Raymond James Financial Inc$11.01M—
Wells Fargo & COMPANY/MN$8.66M—
Melone Private Wealth, LLC$6.69M—
Gridiron Partners, LLC$4.43M—
Bank of America Corp /De$4.31M—

Activity

Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).
DateActorActionSecurityValueShares ΔPosition afterImpact
Q2 2026
as of
LPL Financial LLC
13F manager
AddClosed-End Fund$3.69M+349K
+47.79%
1,080,405
low
Q1 2026
as of
Guggenheim Capital LLC
13F manager
AddClosed-End Fund$2.35M+227K
+12.47%
2,043,438
low
Q4 2025
as of
Bank of America Corp /De
13F manager
TrimClosed-End Fund$-1.26M-123K
-22.58%
423,066
low
Q1 2026
as of
Northwestern Mutual Wealth Management Co
13F manager
AddClosed-End Fund$1.05M+101K
+41.96%
340,621
low
Q1 2026
as of
Advisors Asset Management, Inc.
13F manager
AddClosed-End Fund$982.5K+95K
+56.42%
262,394
low
Q2 2026
as of
The PNC Financial Services Group, Inc.
13F manager
NewClosed-End Fund$810.1K+77K
76,640
low
Q2 2026
as of
Ethos Financial Group, LLC
13F manager
NewClosed-End Fund$294.0K+29K
28,583
low
Q1 2026
as of
Wolverine Asset Management, LLC
13F manager
ExitClosed-End Fund$-240.3K-24K
-100.00%
—
low

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
NMZClosed-End FundEquity670682103BBG000BY2HL9