NMZ SEC Form 4 filings
Nuveen Municipal High Income Opportunity Fund Latest Insider Trading Activity
The most recent employee insider trading activity for Nuveen Municipal High Income Opportunity Fund was on March 5, 2026, when Siffermann William A (Vice President) reported a purchase of 100 shares at $10.48 per share. For the past 6,870 days, NMZ has had 17 total insider transactions represented in the displayed records. This page shows up to the 10 most recent SEC Form 4 filing records on a 6-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
Insider Trading For NMZ Charted on Daily Candles. Scroll left or zoom out to load earlier candles (up to 2 years).
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2026-03-06 | 2026-03-05 | Nuveen Municipal High Income Opportunity Fund | Siffermann William A | Vice President | Buy | 1 | 100 | $10.48 | $1,048.00 | 10.94% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2025-03-24 | 2025-03-21 | Nuveen Municipal High Income Opportunity Fund | Siffermann William A | Vice President | Buy | 1 | 300 | $11.08 | $3,324.00 | 49.20% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2023-10-26 | 2023-10-26 | Nuveen Municipal High Income Opportunity Fund | Jones Nathaniel T. | Vice President and Treasurer | Buy | 1 | 1,100 | $8.33 | $9,163.00 | 100.00% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2023-10-25 | 2023-10-25 | Nuveen Municipal High Income Opportunity Fund | Toth Terence J | Trustee | Sell | 5 | 4,208 | $8.50 | $35,769.11 | 20.73% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2022-11-28 | 2022-11-28 | Nuveen Municipal High Income Opportunity Fund | Toth Terence J | Trustee | Buy | 2 | 2,370 | $10.97 | $25,998.90 | 32.02% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2018-11-16 | 2018-11-15 | Nuveen Municipal High Income Opportunity Fund | Siffermann William A | Vice President | Buy | 1 | 150 | $11.83 | $1,774.50 | 48.42% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2017-08-10 | 2017-08-08 | Nuveen Municipal High Income Opportunity Fund | Toth Terence J | Trustee | Buy | 2 | 1,838 | $13.60 | $24,990.42 | 60.50% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2007-12-28 | 2007-12-27 | Nuveen Municipal High Income Opportunity Fund | Miller John V | V.P | Buy | 1 | 1,000 | $14.30 | $14,300.00 | 20.69% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2007-12-26 | 2007-12-24 | Nuveen Municipal High Income Opportunity Fund | Miller John V | V.P | Buy | 2 | 2,000 | $14.30 | $28,608.00 | 26.79% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. NMZ | 2007-11-27 | 2007-11-26 | Nuveen Municipal High Income Opportunity Fund | Miller John V | V.P | Buy | 1 | 1,333 | $15.30 | $20,394.90 | 72.72% | View Filing |
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