MFS HIGH YIELD MUNICIPAL TRUST (CMU) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Time period
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-05-18
1:15 pm
Sale
2026-03-3113GMFS HIGH YIELD MUNICIPAL TR
CMU
Almitas Capital LLC1,497,718
5.900%
-695,224decrease
(-31.70%)
Filing
History
2026-05-15
12:54 pm
Purchase
2026-03-3113GMFS HIGH YIELD MUNICIPAL TR
CMU
RIVERNORTH CAPITAL MANAGEMENT LLC2,955,950
11.600%
376,875increase
(+14.61%)
Filing
History
2026-05-12
4:05 pm
Sale
2026-05-0613DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP133,190
1.040%
-1,632,139decrease
(-92.46%)
Filing
History
2026-05-05
4:39 pm
Sale
2026-05-0113DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP1,765,329
6.920%
-1,077,049decrease
(-37.89%)
Filing
History
2026-05-05
4:37 pm
Sale
2026-05-0113GMFS HIGH YIELD MUNICIPAL TR
CMU
JPMorgan Chase Bank N.A.330
100.000%
-180decrease
(-35.29%)
Filing
History
2026-05-01
4:27 pm
Sale
2026-04-2913DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP2,842,378
11.150%
-354,768decrease
(-11.10%)
Filing
History
2026-04-27
4:39 pm
Sale
2026-04-2313DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP3,197,146
12.540%
-258,059decrease
(-7.47%)
Filing
History
2026-04-09
4:20 pm
Sale
2026-04-0713DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP3,455,205
13.550%
-552,716decrease
(-13.79%)
Filing
History
2026-02-17
6:55 pm
Purchase
2025-12-3113GMFS HIGH YIELD MUNICIPAL TR
CMU
Almitas Capital LLC2,192,942
5.900%
685,774increase
(+45.50%)
Filing
History
2025-12-16
4:29 pm
Purchase
2025-12-1213DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP4,007,921
15.720%
376,418increase
(+10.37%)
Filing
History
2025-11-14
7:38 pm
Purchase
2025-09-3013GMFS HIGH YIELD MUNICIPAL TR
CMU
Almitas Capital LLC1,507,168
5.900%
1,507,168increase
(New Position)
Filing
History
2025-11-14
4:05 pm
Purchase
2025-11-1213DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP3,631,503
14.250%
288,535increase
(+8.63%)
Filing
History
2025-10-07
3:43 pm
Purchase
2025-09-3013GMFS HIGH YIELD MUNICIPAL TR
CMU
RIVERNORTH CAPITAL MANAGEMENT LLC2,579,075
10.120%
664,348increase
(+34.70%)
Filing
History
2025-10-02
4:41 pm
Sale
2025-09-3013GMFS HIGH YIELD MUNICIPAL TR
CMU
SIT INVESTMENT ASSOCIATES INC1,045,340
4.100%
-957,299decrease
(-47.80%)
Filing
History
2025-08-28
4:05 pm
Purchase
2025-08-2613DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP3,342,968
13.110%
266,517increase
(+8.66%)
Filing
History
2025-07-16
5:03 pm
Purchase
2025-07-1513DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP3,076,451
12.070%
199,549increase
(+6.94%)
Filing
History
2025-05-15
10:11 am
Purchase
2025-03-3113GMFS HIGH YIELD MUNICIPAL TR
CMU
RIVERNORTH CAPITAL MANAGEMENT LLC1,914,727
7.510%
594,009increase
(+44.98%)
Filing
History
2025-04-04
4:00 pm
Sale
2025-03-3113GMFS HIGH YIELD MUNICIPAL TR
CMU
City of London Investment Management Company Limited1,234,194
4.800%
-49,740decrease
(-3.87%)
Filing
History
2025-02-14
4:05 pm
Purchase
2024-12-3113DMFS HIGH YIELD MUNICIPAL TR
CMU
Bulldog Investors, LLP2,876,902
11.290%
477,733increase
(+19.91%)
Filing
History
2025-01-03
3:13 pm
Purchase
2024-12-3113GMFS HIGH YIELD MUNICIPAL TR
CMU
SIT INVESTMENT ASSOCIATES INC2,002,639
7.900%
2,002,639increase
(New Position)
Filing
History
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