---
title: "MFS HIGH YIELD MUNICIPAL TRUST SEC filings"
url: https://altstreet.investments/edgar/809844
kind: edgar-entity
publisher: AltStreet (https://altstreet.investments)
license: Public factual pages may be read, quoted and cited with attribution and a link. Bulk redistribution is not permitted.
---

# MFS HIGH YIELD MUNICIPAL TRUST: SEC filings and what they report

| Field | Value |
| --- | --- |
| Entity | MFS HIGH YIELD MUNICIPAL TRUST |
| CIK | 809844 |
| Filing family | Form N-PORT |

## Filings (20 on record, newest first)

| Date | Form | Family | SEC link |
| --- | --- | --- | --- |
| July 28, 2026 | N-CSRS | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000119312526319003/ |
| July 27, 2026 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000141036826075375/ |
| April 24, 2026 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000141036826040084/ |
| April 6, 2026 | SC TO-I | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000093041326000980/ |
| February 12, 2026 | N-CEN | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000141036826011191/ |
| January 26, 2026 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000141036826007032/ |
| January 23, 2026 | N-CSR | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000119312526020487/ |
| October 24, 2025 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000141036825017032/ |
| July 28, 2025 | N-CSRS | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000168386325006220/ |
| July 25, 2025 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272425177388/ |
| April 24, 2025 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272425089112/ |
| February 11, 2025 | N-CEN | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272425022251/ |
| January 27, 2025 | N-CSR | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000168386325000340/ |
| January 24, 2025 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272425011706/ |
| October 25, 2024 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272424237087/ |
| July 25, 2024 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272424163578/ |
| April 24, 2024 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272424087434/ |
| February 9, 2024 | N-CEN | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272424021299/ |
| January 24, 2024 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272424010013/ |
| October 24, 2023 | NPORT-P | Form N-PORT | https://www.sec.gov/Archives/edgar/data/809844/000175272423234890/ |


## More

- Entity page (HTML, with events, parties and the platform record): https://altstreet.investments/edgar/809844
- SEC EDGAR filing index: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000809844&owner=include&count=40
- Signal history, evidence passages and the entity graph are AltStreet Terminal features: https://altstreet.investments/terminal

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Source page: https://altstreet.investments/edgar/809844
Machine index: https://altstreet.investments/llms.txt
AltStreet reads what platforms, funds and issuers file with the SEC and what they tell investors, and publishes the difference. Figures are as filed or as captured on the date stated; nothing here is investment advice.