// company-profile
Mfs High Yield Municipal Trust
CMUExchange: NYSEInc.: MAFilings: 31Insiders: 14
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Mfs High Yield Municipal Trust insiders filed 1 Form 4 transaction, none of which were open-market purchases or sales.
- Most active insider: JPMorgan Chase Bank, N.A. with 1 transaction totaling $0.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Mfs High Yield Municipal Trust as of 2026-03-31
Total reported AUM
$45.3M
QoQ change
+3.0%
Reporting period
2026-03-31
#1
Bulldog Investors, LLP
CIK 1504304
$12.6M
3.5M shares
#2
RIVERNORTH CAPITAL MANAGEMENT, LLC
CIK 1447578
$10.6M
3.0M shares
#3
Almitas Capital LLC
CIK 1596468
$5.4M
1.5M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 1, 2026 | JPMorgan Chase Bank, N.A. | CMU | J | 180 | — | — |
| Jan 20, 2026 | Bulldog Investors, LLP | CMU | Purchase | 678 | $3.50 | $2K |
| Sep 5, 2024 | JPMorgan Chase Bank, N.A. | CMU | J | 510 | — | — |
| Sep 5, 2024 | JPMorgan Chase Bank, N.A. | CMU | J | 510 | — | — |
| Aug 30, 2024 | JPMorgan Chase Bank, N.A. | CMU | J | 13 | — | — |
22 more transactions hidden
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