MFS HIGH YIELD MUNICIPAL TRUST SEC filings

Filings

1. N-PXMFS HIGH YIELD MUNICIPAL TRUSTCMUAug 26

   Fund proxy voting record

2. SCHEDULE 13G/AMFS HIGH YIELD MUNICIPAL TRUSTCMUAug 21

   Ownership stake disclosure by Almitas Capital LLC (amended)

   Almitas Capital LLC, filed by

3. 4MFS HIGH YIELD MUNICIPAL TRUSTCMUAug 11

   Laurie J Thomsen, insider filing for CMU

   Laurie J Thomsen, reporting

4. N-CSRSMFS HIGH YIELD MUNICIPAL TRUSTCMUJul 28

   Fund semiannual report

5. NPORT-PMFS HIGH YIELD MUNICIPAL TRUSTCMUJul 27

   Fund portfolio holdings

6. SCHEDULE 13G/AMFS HIGH YIELD MUNICIPAL TRUSTCMUJul 1

   Ownership stake disclosure by JPMorgan Chase Bank, N.A. (amended)

   JPMorgan Chase Bank, N.A., filed by

7. 40-17GABERDEEN MUNICIPAL INCOME FUNDMFMJun 29

   40-17G filing

   MFS SERIES TRUST XVI, filer · MFS SERIES TRUST IV, filer · +30 more

8. 4MFS HIGH YIELD MUNICIPAL TRUSTCMUJun 9

   JPMorgan Chase Bank, N.A., insider filing for CMU

   JPMorgan Chase Bank, N.A., reporting

9. 25-NSEMFS HIGH YIELD MUNICIPAL TRUSTCMUJun 8

   Delisting notice

   NEW YORK STOCK EXCHANGE LLC, filed by

10. SCHEDULE 13G/AMFS HIGH YIELD MUNICIPAL TRUSTCMUMay 18

    Ownership stake disclosure by Almitas Capital LLC (amended)

    Almitas Capital LLC, filed by

11. SCHEDULE 13G/AMFS HIGH YIELD MUNICIPAL TRUSTCMUMay 15

    Ownership stake disclosure by RIVERNORTH CAPITAL MANAGEMENT, LLC (amended)

    RIVERNORTH CAPITAL MANAGEMENT, LLC, filed by

12. SCHEDULE 13D/AMFS HIGH YIELD MUNICIPAL TRUSTCMUMay 12

    Ownership stake disclosure by Bulldog Investors, LLP (amended)

    Bulldog Investors, LLP, filed by

13. SC TO-I/AMFS HIGH YIELD MUNICIPAL TRUSTCMUMay 11

    Issuer tender offer (amended)

14. SC TO-I/AMFS HIGH YIELD MUNICIPAL TRUSTCMUMay 6

    Issuer tender offer (amended)

15. SCHEDULE 13D/AMFS HIGH YIELD MUNICIPAL TRUSTCMUMay 5

    Ownership stake disclosure by Bulldog Investors, LLP (amended)

    Bulldog Investors, LLP, filed by

16. SCHEDULE 13G/AMFS HIGH YIELD MUNICIPAL TRUSTCMUMay 5

    Ownership stake disclosure by JPMorgan Chase Bank, N.A. (amended)

    JPMorgan Chase Bank, N.A., filed by

17. 4MFS HIGH YIELD MUNICIPAL TRUSTCMUMay 5

    JPMorgan Chase Bank, N.A., insider filing for CMU

    JPMorgan Chase Bank, N.A., reporting

18. SCHEDULE 13D/AMFS HIGH YIELD MUNICIPAL TRUSTCMUMay 1

    Ownership stake disclosure by Bulldog Investors, LLP (amended)

    Bulldog Investors, LLP, filed by

19. SCHEDULE 13D/AMFS HIGH YIELD MUNICIPAL TRUSTCMUApr 27

    Ownership stake disclosure by Bulldog Investors, LLP (amended)

    Bulldog Investors, LLP, filed by

20. NPORT-PMFS HIGH YIELD MUNICIPAL TRUSTCMUApr 24

    Fund portfolio holdings

21. SCHEDULE 13D/AMFS HIGH YIELD MUNICIPAL TRUSTCMUApr 9

    Ownership stake disclosure by Bulldog Investors, LLP (amended)

    Bulldog Investors, LLP, filed by

22. SC TO-IMFS HIGH YIELD MUNICIPAL TRUSTCMUApr 6

    Issuer tender offer

23. N-23C-2MFS HIGH YIELD MUNICIPAL TRUSTCMUApr 1

    N-23C-2 filing

24. 4MFS HIGH YIELD MUNICIPAL TRUSTCMUApr 1

    Geoffrey Schechter, insider filing for CMU

    Geoffrey Schechter, reporting

25. SC TO-CMFS HIGH YIELD MUNICIPAL TRUSTCMUMar 4

    SC TO-C filing

26. SCHEDULE 13GMFS HIGH YIELD MUNICIPAL TRUSTCMUFeb 17

    Ownership stake disclosure by Almitas Capital LLC

    Almitas Capital LLC, filed by

27. N-CENMFS HIGH YIELD MUNICIPAL TRUSTCMUFeb 12

    N-CEN filing

28. NPORT-PMFS HIGH YIELD MUNICIPAL TRUSTCMUJan 26

    Fund portfolio holdings

29. 4/AMFS HIGH YIELD MUNICIPAL TRUSTCMUJan 23

    Phillip Goldstein, insider filing for CMU (amended)

    Phillip Goldstein, reporting · Andrew Dakos, reporting · +1 more

30. N-CSRMFS HIGH YIELD MUNICIPAL TRUSTCMUJan 23

    Fund shareholder report

31. 4MFS HIGH YIELD MUNICIPAL TRUSTCMUJan 22

    Phillip Goldstein, insider filing for CMU

    Phillip Goldstein, reporting · Andrew Dakos, reporting · +1 more

32. 3MFS HIGH YIELD MUNICIPAL TRUSTCMUJan 9

    Thomas P. Murphy, new insider at CMU

    Thomas P. Murphy, reporting

33. SCHEDULE 13D/AMFS HIGH YIELD MUNICIPAL TRUSTCMUDec 16, 2025

    Ownership stake disclosure by Bulldog Investors, LLP (amended)

    Bulldog Investors, LLP, filed by

34. 4MFS HIGH YIELD MUNICIPAL TRUSTCMUDec 11, 2025

    Joseph Flaherty, insider filing for CMU

    Joseph Flaherty, reporting

35. SCHEDULE 13GMFS HIGH YIELD MUNICIPAL TRUSTCMUNov 14, 2025

    Almitas Capital LLC filed a Schedule 13G disclosure reporting a 5.1% ownership stake in MFS High Yield Municipal Trust (CMU). This indicates Almitas has acquired a significant minority position in the municipal bond fund, which may signal a strategic investment or intention to…

    Almitas Capital LLC, filed by

36. SCHEDULE 13D/AMFS HIGH YIELD MUNICIPAL TRUSTCMUNov 14, 2025

    Ownership stake disclosure by Bulldog Investors, LLP (amended)

    Bulldog Investors, LLP, filed by

37. 40-17GMFS HIGH YIELD MUNICIPAL TRUSTCMUOct 30, 2025

    40-17G filing

    MFS SERIES TRUST XVI, filer · MFS SERIES TRUST IV, filer · +31 more

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