SCHEDULE Filed 2025-02-14 Event 2024-12-31 SEC 0001398344-25-002897 →

Bulldog Investors, LLP → MFS HIGH YIELD MUNICIPAL TRUST CMU

Stake: 11.29% Shares: 2,876,902 CUSIP: 59318E102 Class: Common Stock

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

4 13D/G filings on this issuer

3 other filings besides this one

Filer Track Record

13 filings by this filer

12 other filings in the data moat

Short Interest · settle 2026-03-31

DTC 3.01

163,286 shares short · +15.4% vs prior

Post-Filing Returns · since 2024-12-31 on CMU

+1 day

+0.3%

+5 days

+0.3%

+30 days

+0.4%

+60 days

+3.7%

+90 days

+0.4%

+180 days

-2.8%

Anchor price 3.26 on closest trading day on/after 2024-12-31. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Other 13D/G Filings on MFS HIGH YIELD MUNICIPAL TRUST

Filed	Form	Filer	Stake	Shares
2026-04-09	SCHEDULE 13D/A	Bulldog Investors, LLP	13.55%	3,072,220	view →
2024-01-08	SC	Saba Capital Management, L.P.	—	—	view →
2024-01-02	SC	Bulldog Investors, LLP	—	—	view →

Other Filings by Bulldog Investors, LLP

Filed	Form	Issuer	Stake	Shares
2026-04-09	SCHEDULE 13D/A	MFS High Yield Municipal Trust CMU	13.55%	3,072,220	view →
2024-01-08	SC	NXG NextGen Infrastructure Income Fund NXG-RI	—	—	view →
2024-01-02	SC	MFS HIGH YIELD MUNICIPAL TRUST CMU	—	—	view →
2023-04-04	SC	Nuveen Short Duration Credit Opportunities Fund	—	—	view →
2022-07-13	SC	TAIWAN FUND INC TWN	—	—	view →
2021-04-05	SC	NEW IRELAND FUND INC	—	—	view →
2019-10-07	SC	NUVEEN CONNECTICUT QUALITY MUNICIPAL INCOME FUND	—	—	view →
2018-05-15	SC	ABERDEEN JAPAN EQUITY FUND, INC.	—	—	view →
2018-03-06	SC	SWISS HELVETIA FUND, INC. SWZ	—	—	view →
2018-02-07	SC	PUTNAM HIGH INCOME SECURITIES FUND PCF	—	—	view →
2018-01-24	SC	EMERGENT CAPITAL, INC.	—	—	view →
2018-01-18	SC	PUTNAM HIGH INCOME SECURITIES FUND PCF	—	—	view →

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