Nuveen Municipal High Income Opportunity Fund (NMZ) is issuing up to 222,000,000 transferable rights to subscribe for up to 37,000,000 common shares. One share requires six rights. Record-date holders may over-subscribe; subject to Board approval, the Fund may add up to 9,250,000 shares, for up to 46,250,000 total.
The estimated subscription price is $8.60 per share, based on 95% of the average of the last reported sales prices on the expiration date and the four preceding trading days. If that Formula Price is below 90% of NAV per share at expiration, the price will be 90% of NAV. Assuming all primary shares are sold at the estimate, the Fund estimates net proceeds of approximately $318,200,000. Nuveen Fund Advisors bears estimated offering expenses of approximately $371,000. The Fund anticipates investing substantially all proceeds within approximately three months of receipt, though the invest-up period could extend to six months.
Rights expire at 5:00 p.m. Eastern on December 2, 2026, unless extended. At the estimated $8.60 price, a fully subscribed primary offering illustrates a 1.08% reduction in NAV per share. Shares issued after the November 13 and December 2 distribution record dates will not be entitled to the respective December 1 and December 31 distributions.
Nuveen Municipal High Income Opportunity Fund (NMZ) revised its use-of-proceeds disclosure for net proceeds from Common Share issuances. The Fund currently anticipates it will be able to invest substantially all net proceeds in investments that meet its objectives and policies within approximately three months of receiving them. Pending investment, proceeds are anticipated to be invested in short- or long-term securities issued by the U.S. Government and its agencies or instrumentalities, or in high-quality, short-term money market instruments. The Fund may also use proceeds to pay distributions to shareholders.
NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) reported an initial statement of ownership on Form 3 for Margot Kleinman, who is identified as a Portfolio Manager. The filing does not list any specific holdings or transactions, so it simply establishes her status as an insider associated with the fund.
NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) reported an initial statement of beneficial ownership for Kristen Dejong, identified as a Portfolio Manager. The filing lists no reportable holdings or transactions in NMZ securities at this time, and no derivative positions are disclosed.
NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND (NMZ) has a new initial insider ownership report. Reporting person Parth Doshi, identified with the role "VP", filed a Form 3 stating their status with respect to NMZ. The filing reports no transactions and does not list any specific holdings or derivative positions.
Nuveen Municipal High Income Opportunity Fund common stock saw offsetting indirect trades on August 4, 2026 by reporting persons Bank of America Corporation and its wholly owned subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated.
Merrill Lynch executed three 1-share purchases at per-share prices between $10.1750 and $10.1887 and three 1-share sales between $10.2301 and $10.3237. The reporting persons disclaim beneficial ownership except to any pecuniary interest and do not concede greater-than-10% beneficial owner or group status; any profit potentially recoverable under Section 16(b) will be remitted to the fund.
Bank of America Corporation and its subsidiary Merrill Lynch, as joint reporting persons, disclosed small, offsetting trades in NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND common stock. On 2026-08-03 and 2026-07-31 they indirectly purchased 36 shares and sold 36 shares at per-share prices between $10.1950 and $10.3250. They describe their interest as indirect, disclaim beneficial ownership beyond any pecuniary interest, and state that any potentially recoverable short-swing profit from these trades will be remitted to the fund.
Bank of America Corporation and its subsidiary Merrill Lynch, Pierce, Fenner & Smith Incorporated jointly report indirect trades in NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND common stock on 2026-07-24, purchasing 9 shares at $10.235 and selling 9 shares at $10.175. The positions are held indirectly through Merrill Lynch, with both reporting persons disclaiming beneficial ownership except for any pecuniary interest and not conceding greater-than-10% beneficial-owner status or group status. They state that any profit potentially recoverable as short-swing profit under Section 16(b), if they were deemed greater-than-10% owners, will be remitted to the issuer.
Nuveen’s municipal closed-end funds, including Nuveen Municipal High Income Opportunity Fund, are calling 2026 virtual annual shareholder meetings to elect independent board members. The meetings will be held online on August 13, 2026 at 2:00 p.m. Central time for all listed funds.
Shareholders of record on June 22, 2026 can vote by mail, phone, internet, or during the webcast. Common shareholders will elect four board members per fund, while certain preferred shareholders separately elect two members. All nominees are independent, and the funds use a staggered board with Classes I, II and III.
The statement explains quorum rules, broker voting under NYSE Rule 452, and how “broker non-votes” and abstentions are treated. It also details the unitary board structure across 210 Nuveen portfolios, committee responsibilities, and increased board retainers and committee fees effective in 2025–2026.
Nuveen Municipal High Income Opportunity Fund trustee Albin F. Moschner reported open-market sales of its Common Stock. On June 22, 2026, he sold 1,100 shares at $10.354 per share through a family LLC, leaving 736 indirectly held shares, and sold 1,812 shares at $10.37 per share directly, leaving 3,788 directly held shares.