MFS High Yield Municipal Trust

5 13D/G filings 2 distinct filers 0 insider transactions (365d)

1 BOARD-CHANGE

Post-Filing Returns · across 2 activist filings on this issuer

Median 30d

+0.4%

avg +0.4%

Median 60d

+3.7%

avg +3.7%

Median 90d

+0.4%

avg +0.4%

Median 180d

-2.8%

avg -2.8%

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Activist filings

2 SCHEDULE 13D/A · 1 SCHEDULE · 2 SC

Distinct filers

multi-activist cluster

Insiders (365d)

0 buys · 0 sales

Latest short DTC

—

no FINRA match

Filed	Form	Filer	Stake	Shares	Intent
2026-05-12	SCHEDULE 13D/A	Bulldog Investors, LLP	—	100,155		view →
2026-04-09	SCHEDULE 13D/A	Bulldog Investors, LLP	13.55%	3,072,220	BOARD-CHANGE	view →
2025-02-14	SCHEDULE	Bulldog Investors, LLP	11.29%	2,876,902		view →
2024-01-08	SC	Saba Capital Management, L.P.	—	—		view →
2024-01-02	SC	Bulldog Investors, LLP	—	—		view →

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