NMZ · Insider trading · 13F holders · Congress trades
Nuveen Municipal High Income Opportunity Fund (NMZ)
Who is buying and selling NMZ: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 8
- Insider buys, 90 days
- $398.16
- Insider sales, 90 days
- $400.37
- Congress trades, 12 months
- 0
NMZ at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 NMZ insider filed 2 open-market purchases worth $398.16 and 2 sales worth $400.37 on SEC Form 4.
- 8 13F filers hold NMZ among their 50 largest positions, worth $45.2M combined. The biggest bets by portfolio weight are Melone Private Wealth, LLC (3.4%), North Ground Capital (1.1%) and Hennion & Walsh Asset Management, Inc. (0.6%). In their latest 13Fs, 1 manager opened a new position and 3 added to one.
- No member of Congress has disclosed a trade in NMZ.
- NMZ last closed at $8.98 on Oct 29, 2026.
NMZ insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 NMZ insider filed 2 open-market purchases worth $398.16 and 2 sales worth $400.37 on SEC Form 4.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Aug 6, 2026 | Bank Of America Corp /De/ | 10% Owner | Sale | 3 | $10.27 | $30.80 | SEC |
| Aug 6, 2026 | Bank Of America Corp /De/ | 10% Owner | Buy | 3 | $10.18 | $30.55 | SEC |
| Aug 4, 2026 | Bank Of America Corp /De/ | 10% Owner | Sale | 36 | $10.27 | $369.57 | SEC |
| Aug 4, 2026 | Bank Of America Corp /De/ | 10% Owner | Buy | 36 | $10.21 | $367.61 | SEC |
Who owns NMZ? Hedge funds and superinvestors
8 13F filers hold NMZ among their 50 largest positions, worth $45.2M combined. The biggest bets by portfolio weight are Melone Private Wealth, LLC (3.4%), North Ground Capital (1.1%) and Hennion & Walsh Asset Management, Inc. (0.6%). In their latest 13Fs, 1 manager opened a new position and 3 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Hennion & Walsh Asset Management, Inc.Wealth manager | 0.6% | $21.0M | 2,345,860 | +5.8% shares | Q3 2026 |
| Rivernorth Capital Management, LLCMutual fund manager | 0.5% | $11.1M | 1,049,891 | — | Q2 2026 |
| Melone Private Wealth, LLCWealth manager | 3.4% | $8.7M | 976,404 | +15.4% shares | Q3 2026 |
| Palogic Value Management, L.P.Wealth manager | 0.5% | $1.4M | 135,750 | +1.9% shares | Q2 2026 |
| North Ground CapitalInstitutional asset manager | 1.1% | $947K | 89,600 | New | Q2 2026 |
| Gridiron Partners, LLCInstitutional asset manager | 0.5% | $911K | 101,622 | +0.0% shares | Q3 2026 |
| Eq Wealth Advisors, LLCWealth manager | 0.4% | $740K | 70,022 | +6.3% shares | Q2 2026 |
| AmeriServ Wealth AdvisorsInstitutional asset manager | 0.3% | $351K | 39,137 | +0.0% shares | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 4, Q2 2026: 4). Screen NMZ in the grand portfolio →
NMZ stock trades by members of Congress
No member of Congress has disclosed a trade in NMZ.
NMZ questions and answers
Are insiders buying NMZ stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 NMZ insider filed 2 open-market purchases worth $398.16 and 2 sales worth $400.37 on SEC Form 4.
Which hedge funds own NMZ?
8 13F filers hold NMZ among their 50 largest positions, worth $45.2M combined. The biggest bets by portfolio weight are Melone Private Wealth, LLC (3.4%), North Ground Capital (1.1%) and Hennion & Walsh Asset Management, Inc. (0.6%). In their latest 13Fs, 1 manager opened a new position and 3 added to one.
Has Congress traded NMZ?
No member of Congress has disclosed a trade in NMZ.
Who is the largest holder of NMZ?
Among 13F filers, Hennion & Walsh Asset Management, Inc. reports the largest NMZ position, $21.0M (2,345,860 shares) in its Q3 2026 13F. The biggest bet by portfolio weight is Melone Private Wealth, LLC's: 3.4% of its portfolio.
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