Welcome to our dedicated page for Pioneer Municipal High Income SEC filings (Ticker: MHI), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The SEC filings page for Pioneer Municipal High Income Fund, Inc. (MHI) provides access to the fund’s regulatory record as a closed-end investment company that traded on the New York Stock Exchange under the symbol MHI. These documents show how the fund was registered, how it complied with exchange and securities regulations, and how its transition to liquidation and delisting was formally executed.
A central filing for MHI is Form 25, titled "Notification of Removal from Listing and/or Registration under Section 12(b) of the Securities Exchange Act of 1934." In this document, the issuer is identified as Pioneer Municipal High Income Fund, Inc. and the exchange as the New York Stock Exchange LLC, with the class of securities described as common stock. The filing states that the exchange has complied with its rules to strike the class of securities from listing and/or withdraw registration, confirming the delisting of MHI’s common stock.
Alongside Form 25, investors may reference other SEC filings and public documents to understand the broader context of MHI’s lifecycle. Stockholder communications describe the approval of a Plan of Liquidation and Dissolution, the fund’s shift from pursuing its investment objective to liquidating its portfolio, and the process of making one or more liquidating distributions to stockholders. These materials complement the formal exchange delisting notice by outlining the fund’s wind-down and redemption of all outstanding shares.
On this page, AI-powered tools can help interpret lengthy or technical filings by highlighting key elements such as the issuer’s identity, the exchange involved, the class of securities affected, and the regulatory basis for removal from listing. Real-time access to EDGAR-sourced documents, including Form 25 and related filings, allows users to trace each step in MHI’s transition from an actively traded NYSE-listed closed-end fund to a fund in liquidation and eventual dissolution.
Pioneer Municipal High Income Fund, Inc. (MHI)Almitas Capital LLC reporting that it no longer holds any beneficial ownership in the fund’s common stock. As of the event date of 09/30/2025, Almitas reports beneficial ownership of 0 shares, representing 0.0% of the class. The filing also shows Almitas has no sole or shared power to vote or dispose of any shares, confirming it is below the 5% reporting threshold.
Pioneer Municipal High Income Fund, Inc. (MHI) reporting persons Saba Capital Management, L.P. and Boaz Weinstein disclosed a transaction dated 08/27/2025 in which 4,201,829 shares of Common Stock were surrendered at a price of $8.59 per share under transaction code J(1). The filing shows 0 shares beneficially owned after the reported transaction and lists the nature of ownership as indirect. The form states the reason for the disposition: the fund was liquidated and shares were surrendered in exchange for cash. The form was signed on 09/02/2025 and was filed by more than one reporting person.
Amendment No. 7 to a Schedule 13D/A for Pioneer Municipal High Income Fund, Inc. (ticker MHI) updates Item 5 and reiterates that the filing is being made jointly by Saba Capital Management, L.P., Saba Capital Management GP, LLC and Boaz R. Weinstein. The filing states the reporting persons' business addresses and roles and discloses that approximately $34,167,884 was paid to acquire the Common Shares reported in the statement. The filing also states that the aggregate amount beneficially owned by each reporting person is 0 shares (0%), using a share base of 22,771,349 common shares outstanding as of April 30, 2025. The amendment notes there have been no transactions in the common shares since the Schedule 13D/A filed on February 3, 2025.
Pioneer Municipal High Income Fund, Inc. (MHI) submitted a Form 25 notification to remove its class of securities from listing and/or registration on the New York Stock Exchange LLC. The filing states the Exchange and the issuer have complied with the applicable rules governing withdrawal under 17 CFR 240.12d2-2 and related provisions. The filing includes the issuer's principal office address and telephone number but does not include a completed signature block or a dated signature in the provided content.
Pioneer Municipal High Income Fund reported that Bank of America Corporation and Banc of America Preferred Funding Corp amended their Schedule 13D to disclose the redemption of 500 Variable Rate MuniFund Term Preferred Shares (CUSIP 723763405). The issuer redeemed those shares for their liquidation preference plus accumulated but unpaid dividends, and as a result the reporting persons now own 0 VMTP Shares and ceased to be beneficial owners of more than 5% of the class. The amendment updates identity schedules and exhibits and incorporates the cover pages showing zero voting and dispositive power for the reporting persons.
Bank of America Corporation and its wholly owned subsidiary Banc of America Preferred Funding Corporation (BAPFC) reported the disposition of 500 Variable Rate MuniFund Term Preferred Shares, Series 2021 (VMTP Shares) of Pioneer Municipal High Income Fund, Inc. (MHI). The shares were redeemed by the issuer on 08/18/2025 at the liquidation preference plus accumulated unpaid dividends, leaving 0 shares beneficially owned by the reporting entities. The Form 4 is jointly filed and identifies Bank of America as holding an indirect interest in the securities through its ownership of BAPFC. The filing includes customary non-admission language about group formation under Section 13(d).
Pioneer Municipal High Income Fund, Inc. reporting persons Almitas Capital LLC and Ronald Mass disclose beneficial ownership of 1,244,033 shares, representing 5.2% of the outstanding common stock. Both filers report shared voting and shared dispositive power over these shares and indicate the holdings are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. The filing identifies the reporting entities and their place of organization and provides officer signatures certifying the accuracy of the statement.
RiverNorth Capital Management reports beneficial ownership of 1,003,600 shares of Pioneer Municipal High Income Fund, Inc. common stock, representing 4.41% of the class. The filing states RiverNorth has sole voting and sole dispositive power over those shares.
The Schedule 13G/A indicates these holdings are held in the ordinary course of business and were not acquired to change or influence control of the issuer. The filing also notes that other persons have the right to receive proceeds from the sale of the reported securities.
Sit Investment Associates, Inc. (SIA) and its subsidiary Sit Fixed Income Advisors II, LLC (SFI) have jointly filed Amendment No. 1 to Schedule 13G for Pioneer Municipal High Income Fund, Inc. (MHI). As of 31 Jul 2025, the advisers report beneficial ownership of 2,614,270 common shares, equal to 11.5 % of the 22,771,349 shares outstanding.
The stake is held entirely through client accounts; SIA and SFI assert shared voting and dispositive power over the shares and disclaim any direct economic ownership under Rule 13d-4. Both entities are registered investment advisers (Item 3 class “IA”) and certify the holdings were acquired in the ordinary course of business without intent to influence control of the issuer. Paul E. Rasmussen, Vice President, signed on 05 Aug 2025.
No other persons or subsidiaries are identified as part of a group, and there are no disclosures of transactions, sales, or ownership below 5 %.
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