How many insider trades does FilingIQ track for CMU?

FilingIQ tracks 33 Form 4 insider transactions for CMU (MFS HIGH YIELD MUNICIPAL TRUST), covering filings from Mar 24, 2016 onwards. 1 of those were filed in the last 90 days.

Are CMU insiders net buyers or net sellers?

Across the full Form 4 history for CMU, 17 transactions (52%) were open-market purchases and 6 (18%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does CMU insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is CMU in?

MFS HIGH YIELD MUNICIPAL TRUST (CMU) is classified in the Financial Services sector, specifically Asset Management, with a current market capitalisation of $91.90M.

CMU insider trading

NYSE Financial Services

MFS HIGH YIELD MUNICIPAL TRUST — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

Last 90 days

Buys / sells

52% / 18%

Market cap

$91.90M

About MFS HIGH YIELD MUNICIPAL TRUST

MFS High Yield Municipal Trust is a close ended fixed income mutual fund launched and managed by Massachusetts Financial Services Company. The fund invests in fixed income markets of the United States. It primarily invests in tax-exempt bonds and tax-exempt notes. The fund benchmarks the performance of its portfolio against Barclays Municipal Bond Index. It was formerly known as Colonial Municipal Income Trust. MFS High Yield Municipal Trust was founded in March 19, 1987 and is domiciled in the United States.

Company website: www.mfs.com

CMU insider activity at a glance

FilingIQ has scored 33 insider transactions for CMU since Mar 24, 2016. The most recent filing in our index is dated May 1, 2026.

Across the full history, 17 open-market purchases and 6 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on CMU insider trades is 46.2/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live CMU trades on FilingIQ Raw filings on SEC EDGAR

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Frequently asked

How many insider trades does FilingIQ track for CMU?: FilingIQ tracks 33 Form 4 insider transactions for CMU (MFS HIGH YIELD MUNICIPAL TRUST), covering filings from Mar 24, 2016 onwards. 1 of those were filed in the last 90 days.
Are CMU insiders net buyers or net sellers?: Across the full Form 4 history for CMU, 17 transactions (52%) were open-market purchases and 6 (18%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does CMU insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is CMU in?: MFS HIGH YIELD MUNICIPAL TRUST (CMU) is classified in the Financial Services sector, specifically Asset Management, with a current market capitalisation of $91.90M.

Methodology & sources

Every CMU insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.