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CMU        0000809844    
Filing Date Form Type Description Document
2022-02-15 4 PRIMARY DOCUMENT View Document
2022-02-09 N-CEN View Document
2022-01-24 NPORT-P View Document
2022-01-20 N-CSR MFS HIGH YIELD MUNICIPAL TRUST N-CSR View Document
2022-01-12 SC 13G/A AMENDED SCHEDULE 13G View Document
2022-01-04 4 PRIMARY DOCUMENT View Document
2021-12-23 4 PRIMARY DOCUMENT View Document
2021-10-25 NPORT-P View Document
2021-10-22 4 PRIMARY DOCUMENT View Document
2021-09-13 40-17G View Document
2021-08-27 N-PX MFS HIGH YIELD MUNICIPAL TRUST N-PX View Document
2021-08-27 DEF 14A MFS MULTI CLOSED END FUND DEF 14A View Document
2021-08-10 SC 13G/A SC 13G/A View Document
2021-08-03 SC 13G SC 13G View Document
2021-07-27 3 PRIMARY DOCUMENT View Document
2021-07-26 NPORT-P View Document
2021-07-22 N-CSRS MFS HIGH YIELD MUNICIPAL TRUST N-CSRS View Document
2021-07-22 4 FORM 4 SUBMISSION View Document
2021-06-25 3 PRIMARY DOCUMENT View Document
2021-06-21 N-23C-2 View Document
2021-04-23 NPORT-P View Document
2021-04-01 3 PRIMARY DOCUMENT View Document
2021-02-11 N-CEN View Document
2021-02-03 SC 13G/A AMENDED SCHEDULE 13G View Document
2021-01-25 N-CSR MFS HIGH YIELD MUNICIPAL TRUST N-CSR View Document
2021-01-22 NPORT-P View Document
2020-10-26 NPORT-P View Document
2020-08-28 N-PX MFS HIGH YIELD MUNICIPAL TRUST N-PX View Document
2020-08-26 4/A PRIMARY DOCUMENT View Document
2020-08-26 4 PRIMARY DOCUMENT View Document
2020-08-20 DEF 14A MFS MULTI CLOSED END FUND DEF 14A View Document
2020-07-24 NPORT-P View Document
2020-07-22 N-CSRS MFS HIGH YIELD MUNICIPAL TRUST N-CSRS View Document
2020-04-23 NPORT-P View Document
2020-02-11 N-CEN View Document
2020-02-10 SC 13G/A AMENDED SCHEDULE 13G View Document
2020-02-06 3 PRIMARY DOCUMENT View Document
2020-02-06 3 PRIMARY DOCUMENT View Document
2020-02-04 40-17G View Document
2020-01-29 CORRESP View Document
2020-01-29 N-CSR MFS HIGH YIELD MUNICIPAL TRUST N-CSR View Document
2020-01-23 NPORT-P View Document
2020-01-15 4 PRIMARY DOCUMENT View Document
2019-10-25 NPORT-EX View Document
2019-08-28 N-PX MFS HIGH YIELD MUNICIPAL TRUST N-PX View Document
2019-08-22 DEF 14A MFS MULTI CLOSED END FUND DEF 14A View Document
2019-07-24 N-CSRS MFS HIGH YIELD MUNICIPAL TRUST N-CSRS View Document
2019-04-22 N-Q MFS HIGH YIELD MUNICIPAL TRUST N-Q View Document
2019-02-28 40-17G View Document
2019-02-12 N-CEN View Document
2019-02-05 3 PRIMARY DOCUMENT View Document
2019-02-01 SC 13G/A AMENDED SCHEDULE 13G View Document
2019-01-23 N-CSR MFS HIGH YIELD MUNICIPAL TRUST N-CSR View Document
2019-01-10 3 PRIMARY DOCUMENT View Document
2019-01-10 3 PRIMARY DOCUMENT View Document
2019-01-08 3 PRIMARY DOCUMENT View Document
2018-10-24 N-Q MFS HIGH YIELD MUNICIPAL TRUST N-Q View Document
2018-08-28 N-PX MFS HIGH YIELD MUNICIPAL TRUST N-PX View Document
2018-08-23 DEF 14A MFS MULTI CLOSED END FUND DEF 14A View Document
2018-07-18 N-CSRS MFS HIGH YIELD MUNICIPAL TRUST N-CSRS View Document
2018-06-28 4 PRIMARY DOCUMENT View Document
2018-04-18 N-Q MFS HIGH YIELD MUNICIPAL TRUST N-Q View Document
2018-03-21 40-17G 2018 FIDELITY BOND 17G-1 FILING View Document
2018-01-26 NSAR-B View Document
2018-01-26 N-CSR MFS HIGH YIELD MUNICIPAL TRUST N-CSR View Document
2018-01-17 SC 13G/A AMENDED SCHEDULE 13G View Document
2017-12-11 4 PRIMARY DOCUMENT View Document
2017-11-30 4 PRIMARY DOCUMENT View Document
2017-10-26 N-Q MFS HIGH YIELD MUNICIPAL TRUST N-Q View Document
2017-08-28 N-PX MFS HIGH YIELD MUNICIPAL TRUST N-PX View Document
2017-08-24 DEF 14A MFS MULTI CLOSED END FUND DEF 14A View Document
2017-07-27 NSAR-A View Document
2017-07-27 N-CSRS MFS HIGH YIELD MUNICIPAL TRUST N-CSRS View Document
2017-06-21 4 PRIMARY DOCUMENT View Document
2017-06-21 4 PRIMARY DOCUMENT View Document
2017-06-21 4 PRIMARY DOCUMENT View Document
2017-06-16 3 PRIMARY DOCUMENT View Document
2017-06-15 4 PRIMARY DOCUMENT View Document
2017-04-20 N-Q MFS HIGH YIELD MUNICIPAL TRUST N-Q View Document
2017-04-06 CORRESP View Document
2017-03-29 3 PRIMARY DOCUMENT View Document
2017-03-24 3 PRIMARY DOCUMENT View Document
2017-03-10 3 PRIMARY DOCUMENT View Document
2017-02-17 40-17G INSURANCE BONDS View Document
2017-01-30 N-CSR MFS HIGH YIELD MUNICIPAL TRUST N-CSR View Document
2017-01-26 NSAR-B View Document
2017-01-13 SC 13G/A AMENDED SCHEDULE 13G View Document
2016-12-27 3 PRIMARY DOCUMENT View Document
2016-10-20 N-Q MFS HIGH YIELD MUNICIPAL TRUST N-Q View Document
2016-08-29 N-PX MFS HIGH YIELD MUNICIPAL TRUST N-PX View Document
2016-08-19 DEF 14A MFS MULTI CLOSED END FUND DEF 14A View Document
2016-07-28 NSAR-A View Document
2016-07-26 N-CSRS MFS HIGH YIELD MUNICIPAL TRUST N-CSRS View Document
2016-04-27 N-Q MFS HIGH YIELD MUNICIPAL TRUST N-Q View Document
2016-04-26 CORRESP View Document
2016-04-14 4 PRIMARY DOCUMENT View Document
2016-04-11 SC 13G/A SC 13GA NO 1 3-31-2016 (MFS HIGH YIELD MUNICIPAL TRUST) View Document
2016-04-11 SC 13G SC 13G 3-31-2016 (MFS HIGH YIELD MUNICIPAL TRUST) View Document
2016-04-06 3 FORM 3 SUBMISSION View Document
2016-04-06 4 FORM 4 SUBMISSION View Document

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