MFS HIGH YIELD MUNICIPAL TRUST - CMU
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 13
Latest filed: Aug 21, 2026
| Form | Count |
|---|---|
| SCHEDULE 13G/A | 5 |
| SCHEDULE 13D/A | 5 |
| 4 | 3 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Aug 21, 2026 | SCHEDULE 13G/A | — | 0002073679-26-000107 | View |
| Aug 11, 2026 | 4 | Jul 02, 2026 | 0001224071-26-000009 | View |
| Jul 01, 2026 | SCHEDULE 13G/A | — | 0001193125-26-291608 | View |
| Jun 09, 2026 | 4 | Jun 08, 2026 | 0001193125-26-263931 | View |
| May 18, 2026 | SCHEDULE 13G/A | — | 0002073679-26-000069 | View |
| May 15, 2026 | SCHEDULE 13G/A | — | 0001398344-26-009265 | View |
| May 12, 2026 | SCHEDULE 13D/A | — | 0001398344-26-009013 | View |
| May 05, 2026 | 4 | May 01, 2026 | 0001193125-26-206266 | View |
| May 05, 2026 | SCHEDULE 13G/A | — | 0001193125-26-206592 | View |
| May 05, 2026 | SCHEDULE 13D/A | — | 0001398344-26-008398 | View |
| May 01, 2026 | SCHEDULE 13D/A | — | 0001398344-26-008113 | View |
| Apr 27, 2026 | SCHEDULE 13D/A | — | 0001398344-26-007324 | View |
| Apr 09, 2026 | SCHEDULE 13D/A | — | 0001398344-26-006342 | View |