Welcome to our dedicated page for ABERDEEN MUNICIPAL INCOME FUND SEC filings (Ticker: MFM), 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.
MFS Municipal Income Trust filings document the regulatory record of a closed-end municipal income fund and its shares of beneficial interest. The trust's proxy materials cover shareholder voting matters for common shareholders and holders of Remarketable Variable Rate MuniFund Term Preferred Shares, along with governance procedures tied to trust approvals.
Other disclosure themes include the fund's municipal bond investment mandate, capital structure, distributions, leverage, net asset value, operating and financial results, and risk factors associated with an income-oriented municipal bond portfolio.
MFS Municipal Income Trust insider ownership update: A Form 3 was filed for reporting person Thomas P. Murphy, identified as a "DIRECTOR OF ADVISOR" to MFS Municipal Income Trust (ticker MFM). The filing states that no non-derivative or derivative securities of the trust are beneficially owned. This means the reporting person currently reports no direct or indirect ownership of the trust’s shares or related derivative securities.
MFS Municipal Income Trust (MFM) is a closed-end fund seeking high current income exempt from U.S. federal income tax, primarily by investing in municipal bonds. For the twelve months ended October 31, 2025, the fund returned 2.82% based on net asset value and 1.64% based on market price, compared with 4.17% for the Bloomberg Municipal Bond Index.
The portfolio is concentrated in revenue-backed sectors such as hospital healthcare (21.7%), long-term care (16.3%), airports (14.9%), and education-related issuers. Credit exposure is mainly investment grade, with notable allocations to A and BBB bonds, alongside a meaningful Not Rated segment. The fund employs leverage through remarketable variable rate munifund term preferred shares and self-deposited inverse floaters, which magnify gains and losses; an illustrative table shows that a 10% portfolio return would translate to a 12.64% return to common shareholders, while a -10% portfolio return would translate to -16.54%.
The report details an average duration of 12.6 and average effective maturity of 20.9 years, underscoring sensitivity to interest rate moves. It also outlines extensive risk factors, including debt market, interest rate, credit, municipal, liquidity, leverage, and derivatives risks. Management notes that longer duration positioning and the use of leverage aided results, while bond selection in AA and A rated securities and exposure to Not Rated bonds detracted. Michael Dawson and Jason Kosty serve as portfolio managers, and Geoffrey Schechter stepped down as a portfolio manager effective September 30, 2025.
MFS Municipal Income Trust insider files Form 4 with no listed trades. The filing identifies Joseph Flaherty as the reporting person, described as an officer of the advisor to MFS Municipal Income Trust, rather than a director or 10% owner of the fund itself. The form shows an earliest transaction date of 06/01/2025, but the non-derivative and derivative security tables in the excerpt do not list any specific acquisitions, dispositions, or holdings. The document is signed by Christopher R. Bohane on 12/11/2025, confirming the information on behalf of the reporting person.
MFS Municipal Income Trust (MFM) Form 4 lists Kanwal Amrit of MFS Investment Management as the reporting person in the capacity of an officer of the advisor. The form indicates an earliest transaction date of 04/01/2025 but contains no completed Table I or Table II transaction lines showing shares, prices, or derivative details. The filing is signed on 10/06/2025.
MFS Municipal Income Trust (NYSE:MFM) filed a routine Form 4 disclosing an insider ownership update by William Adams, an officer of the Trust’s advisor. The filing cites September 30, 2024 as the earliest transaction date but, in the excerpt provided, does not list the number of shares, transaction code, price, or whether securities were acquired or disposed of. No derivative positions, financial schedules, or other material corporate events are presented.
Given the absence of quantitative trade data or indications of a sizable transaction, the document appears to be a standard Section 16 compliance filing with no immediate market impact.