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MFS High Yield Municipal Trust Stock: price and insider trades · United States
No insider purchase over the last 90 days. The latest was filed 23 Jan 2026.
MFS High Yield Municipal Trust: what insiders have been doing
This page follows insider dealings at MFS High Yield Municipal Trust as filed with SEC (Form 4), a company from the Finance & Banking sector. Between 18 October 2025 and 18 October 2026, 1 insider published 1 filing.
Not one open-market sale was filed. On the buying side, 1 insider reported 1 purchase totalling €2,039. A purchase on the market is a deliberate choice to commit personal money, which is why it draws more attention than a grant. Biggest ticket of the year: €2,039, bought by Bulldog Investors, LLP and made public on 22 January 2026.
The last purchase on record was published on 22 January 2026, which is 269 days ago.
With 1 filing in twelve months, the company is quieter than the median of 19 filings across the 5,816 companies we follow on the same exchange. Looking back to 2021, when coverage begins, insiders filed 13 purchases and 4 sales.
For comparison within the same sector, see the insider buying recorded at First Guaranty Bancshares, Inc. and BCB Bancorp Inc. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Insider Decl.
23
Thresholds
n/a
Buy Volume
€1M
13 ops. · all time
Sell Volume
€61,024
4 ops. · all time
Who traded when
BuySaleBulldog Investors, LLP2 buys
Since the insiders bought
- +6.9%Entry US$3.34 · Close at T+365 US$3.57
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Financial data
as of FY 2025FY ended November 2025 · cache
US$3.36
Analyst consensus
Income statement
RevenueUS$69.7k
Net income-US$18k-0.2% margin
Valuation
P/Book0.9x
Beta0.65
Balance sheet & cash
Market capUS$85.7M
Free Cash FlowUS$4.7M
Debt / Equity53%
Profitability & ownership
ROE-0.0%
ROA2.6%
% insiders0.0%
% institutions40.0%
Last declaration on 22 January 2026
Declarations23 total
678 shares@ US$3.50100.0% of flowCommon StockSEC:0001398344-26-001051:0
Canonical exit: 20 Apr 2026 (T+90)
510 sharesRemarketable Variable Rate MuniFund Term Preferred SharesSEC:0000950170-24-106510:0
13 sharesRemarketable Variable Rate MuniFund Term Preferred SharesSEC:0000950170-24-102765:0
77 sharesRemarketable Variable Rate MuniFund Term Preferred SharesSEC:0000950170-24-091547:0
400 shares@ US$3.250.0% of flowCommon StockSEC:0001510281-23-000495:0
Canonical exit: 5 Jul 2023 (T+90)
856,816 shares@ US$3.3965.2% of flowCommon StockSEC:0001510281-23-000493:0
10,448 shares@ US$2.980.7% of flowCommon StockSEC:0001510281-23-000472:0
Canonical exit: 6 Feb 2024 (T+90)
100 sharesRemarketable Variable Rate MuniFund Term Preferred SharesSEC:0000950170-23-060193:0
2,485 shares@ US$3.060.2% of flowCommon StockSEC:0001510281-23-000348:0
11,899 shares@ US$3.090.8% of flowCommon StockSEC:0001510281-23-000342:0
6,358 shares@ US$3.100.5% of flowCommon StockSEC:0001510281-23-000327:0
46,009 shares@ US$3.303.3% of flowCommon StockSEC:0001510281-23-000199:0
Canonical exit: 22 Oct 2023 (T+90)
521 shares@ US$3.260.0% of flowCommon StockSEC:0001510281-23-000186:0
Canonical exit: 16 Oct 2023 (T+90)
7,194 shares@ US$3.240.5% of flowCommon StockSEC:0001510281-23-000162:0
Canonical exit: 25 Sept 2023 (T+90)
3,070 shares@ US$3.180.2% of flowCommon StockSEC:0001510281-23-000149:0
Canonical exit: 19 Sept 2023 (T+90)
358,678 shares@ US$3.1525.4% of flowCommon StockSEC:0001510281-23-000127:0
Canonical exit: 4 Sept 2023 (T+90)
10,923 shares@ US$3.180.8% of flowCommon StockSEC:0001510281-23-000099:0
Canonical exit: 17 Aug 2023 (T+90)
179 shares@ US$3.200.0% of flowCommon StockSEC:0001510281-23-000093:0
Canonical exit: 16 Aug 2023 (T+90)
12,046 shares@ US$3.200.9% of flowCommon StockSEC:0001510281-23-000087:0
Canonical exit: 13 Aug 2023 (T+90)
14,574 shares@ US$3.191.0% of flowCommon StockSEC:0001510281-23-000084:0
Canonical exit: 9 Aug 2023 (T+90)
6,893 shares@ US$3.180.5% of flowCommon StockSEC:0001510281-23-000076:0
Canonical exit: 3 Aug 2023 (T+90)
50 sharesRemarketable Variable Rate MuniFund Term Preferred Shares, SSEC:0000899243-22-037188:0
3,000 shares@ US$25,000.00100.0% of flowVariable Rate Municipal Term Preferred Shares, Series 2019/3SEC:0001209191-21-047682:0
23 of 23 declarations
About MFS High Yield Municipal Trust
MFS High Yield Municipal Trust (NYSE: CMU) is a U.S.-listed closed-end bond fund traded on the NYSE within the broader NYSE/NASDAQ market context. It is managed by MFS Investment Management, a long-established American asset manager headquartered in Boston, United States. For investors, CMU is best understood as a tax-exempt municipal income vehicle rather than an operating company: its core objective is to generate high current income exempt from U.S. federal income tax, while also allowing for possible capital appreciation.
The fund began operations on March 19, 1987, giving it a long track record in the municipal bond segment. Its strategy is focused on high-yield national municipal bonds, which generally means the portfolio can offer higher income than investment-grade municipal funds, but with more credit risk, duration risk, and market-price volatility. As with many closed-end funds, the share price can trade at a premium or discount to net asset value, so market performance may diverge from the underlying portfolio performance. That structural feature is central to CMU’s investment case and risk profile.
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From a competitive standpoint, CMU occupies a specialized niche inside the U.S. municipal closed-end fund universe. The fund benefits from MFS’s long history in fixed income and municipal investing, which is a meaningful credibility factor in a market where manager experience, portfolio discipline, and risk control matter a great deal. Compared with plain-vanilla municipal bond products, a high-yield closed-end fund can be more attractive to investors seeking enhanced tax-advantaged cash flow, but it also requires a higher tolerance for credit selection risk and for price moves driven by sentiment, leverage dynamics, and changes in discount/premium levels.
Geographically, CMU’s portfolio is primarily U.S.-focused, investing in municipal obligations issued in the United States. The manager is also U.S.-based, reinforcing the fund’s domestic character. Recent corporate and fund-level developments are notable. In 2026, MFS announced a regular distribution for CMU and also disclosed tender-offer activity approved by the board, with a subsequent announcement that a significant portion of shares tendered were accepted. These events are relevant because they can affect fund size, liquidity, trading dynamics, and the market discount/premium. MFS has also disclosed broader proposals related to certain municipal closed-end funds, which investors should monitor as potential catalysts for structural changes. Overall, CMU is a niche, income-oriented, U.S. municipal credit vehicle best suited to investors who understand closed-end fund mechanics and are comfortable with the associated risks.
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