Institutional Ownership
Mfs High Yield Mun Tr
CUSIP 59318E102SH BEN INTCMUQ1 2026
13D / 13G Filings
29
Schedule 13D/13G on record
Beneficial Filers
8
Distinct reporting persons
Largest Stake
18.6%
Max % of class reported
Institutional Holders
45
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
29 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Almitas Capital LLC | 13G | 5.9% | 7.70M | SEC |
| 2 | Dec 16, 2025 | Bulldog Investors, LLP | 13D/A | 15.7% | — | SEC |
| 3 | Nov 14, 2025 | Almitas Capital LLC | 13G | 11.0% | 1.51M | SEC |
| 4 | Nov 14, 2025 | Bulldog Investors, LLP | 13D/A | 14.3% | — | SEC |
| 5 | Oct 7, 2025 | Rivernorth Capital Management, LLC | 13G/A | 10.1% | 2.58M | SEC |
| 6 | Oct 2, 2025 | Sit Investment Associates, Inc. | 13G/A | 11.0% | 1.05M | SEC |
| 7 | Aug 28, 2025 | Bulldog Investors, LLP | 13D/A | 13.1% | — | SEC |
| 8 | Jul 16, 2025 | Bulldog Investors, LLP | 13D/A | 12.1% | — | SEC |
| 9 | May 15, 2025 | Rivernorth Capital Management, LLC | 13G/A | 7.5% | 1.91M | SEC |
| 10 | Apr 4, 2025 | City Of London Investment Management Company Limited | 13G/A | 4.8% | 1.23M | SEC |
19 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Mfs High Yield Mun Tr.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Bulldog Investors, LLP | 3.53M | $12.64M |
| 2 | Rivernorth Capital Management, LLC | 2.96M | $10.58M |
| 3 | Almitas Capital LLC | 1.50M | $5.36M |
| 4 | Icon Advisers Inc/Co | 731.7K | $2.62M |
| 5 | Morgan Stanley | 710.7K | $2.54M |
| 6 | City Of London Investment Management Co Ltd | 676.1K | $2.42M |
| 7 | Bank Of America Corp /De/ | 406.0K | $1.45M |
| 8 | Allspring Global Investments Holdings, LLC | 377.1K | $1.35M |
| 9 | Bank Of New York Mellon Corp | 354.4K | $1.27M |
| 10 | Guggenheim Capital LLC | 315.6K | $1.13M |