MFS High Yield Municipal Trust
CMU was delisted on the 5th of June, 2026.
39 hedge funds and large institutions have $42.4M invested in MFS High Yield Municipal Trust in 2025 Q1 according to their latest regulatory filings, with 3 funds opening new positions, 19 increasing their positions, 9 reducing their positions, and 6 closing their positions.
111% more repeat investments, than reductions
Existing positions increased: 19 | Existing positions reduced: 9
8% more capital invested
Capital invested by funds: $39.2M → $42.4M (+$3.19M)
3.99% more ownership
Funds ownership: 43.62% → 47.61% (+4%)
7% less funds holding
Funds holding: 42 → 39 (-3)
50% less first-time investments, than exits
New positions opened: 3 | Existing positions closed: 6
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RCM
Rivernorth Capital Management
West Palm Beach,
Florida
|
+$2.01M |
| 2 |
BI
Bulldog Investors
Saddle Brook,
New Jersey
|
+$991K |
| 3 |
SIA
Sit Investment Associates
Minneapolis,
Minnesota
|
+$625K |
| 4 |
AC
Almitas Capital
Santa Monica,
California
|
+$256K |
| 5 |
Bank of New York Mellon
New York
|
+$248K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$245K |
| 2 |
COLIM
City of London Investment Management
London,
United Kingdom
|
-$176K |
| 3 |
Osaic Holdings
Scottsdale,
Arizona
|
-$95.6K |
| 4 |
LSC
Logan Stone Capital
Chicago,
Illinois
|
-$93.1K |
| 5 |
DWM
Drive Wealth Management
Lehi,
Utah
|
-$84.5K |
CMU Hedge Fund Activity: Q1 2025 in Review
39 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in MFS High Yield Municipal Trust (CMU) for Q1 2025, worth a combined $42.4M — up 8.2% from $39.2M a quarter earlier.
Sellers outnumbered buyers: 6 funds closed out of CMU and 3 opened new positions — a net loss of 3 holders — while 9 trimmed existing stakes and 19 added.
The largest buyer was Rivernorth Capital Management, adding an estimated $2.01M. The largest seller was UBS Group, cutting an estimated $245K.
- 39 institutional investors held MFS High Yield Municipal Trust (CMU) as of Q1 2025, down from 42 in Q4 2024.
- Funds reported $42.4M of MFS High Yield Municipal Trust stock for Q1 2025, up 8.2% quarter-over-quarter.
- 3 funds opened new MFS High Yield Municipal Trust positions in Q1 2025 and 6 closed out, a net change of -3 holders.
- The largest MFS High Yield Municipal Trust buyer in Q1 2025 was Rivernorth Capital Management, an estimated $2.01M added.
- The largest MFS High Yield Municipal Trust seller in Q1 2025 was UBS Group, an estimated $245K sold.
Based on aggregated 13F filings for Q1 2025.