MFS Active Intermediate Muni Bond ETF
MFSM
12 hedge funds and large institutions have $7.16M invested in MFS Active Intermediate Muni Bond ETF in 2025 Q4 according to their latest regulatory filings, with 5 funds opening new positions, 4 increasing their positions, 1 reducing their positions, and 1 closing their positions.
585% more capital inflows, than outflows
Capital inflows: $3.09M | Capital outflows: $452K
400% more first-time investments, than exits
New positions opened: 5 | Existing positions closed: 1
300% more repeat investments, than reductions
Existing positions increased: 4 | Existing positions reduced: 1
50% more funds holding
Funds holding: 8 → 12 (+4)
4.59% more ownership
Funds ownership: 9.03% → 13.62% (+4.6%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Commonwealth Equity Services
Waltham,
Massachusetts
|
+$351K |
| 2 |
Jones Financial Companies
Des Peres,
Missouri
|
+$208K |
| 3 |
Bank of America
Charlotte,
North Carolina
|
+$151K |
| 4 |
Marshall Financial Group (Maryland)
Hunt Valley,
Maryland
|
+$130K |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$22.6K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$426K |
| 2 |
Raymond James Financial
St Petersburg,
Florida
|
-$25.1K |
MFSM Hedge Fund Activity: Q4 2025 in Review
12 of the 8,296 institutional investors tracked by Wall St. Rank reported a position in MFS Active Intermediate Muni Bond ETF (MFSM) for Q4 2025, worth a combined $7.16M — up 60% from $4.48M a quarter earlier.
Buyers outnumbered sellers: 5 funds opened new MFSM positions and 1 closed out — a net gain of 4 holders — while 4 added to existing stakes and 1 trimmed.
The largest buyer was Commonwealth Equity Services, opening a new position worth an estimated $351K. The largest seller was Jane Street, exiting entirely with an estimated $426K sold.
- 12 institutional investors held MFS Active Intermediate Muni Bond ETF (MFSM) as of Q4 2025, up from 8 in Q3 2025.
- Funds reported $7.16M of MFS Active Intermediate Muni Bond ETF stock for Q4 2025, up 60% quarter-over-quarter.
- 5 funds opened new MFS Active Intermediate Muni Bond ETF positions in Q4 2025 and 1 closed out, a net change of +4 holders.
- The largest MFS Active Intermediate Muni Bond ETF buyer in Q4 2025 was Commonwealth Equity Services, an estimated $351K added.
- The largest MFS Active Intermediate Muni Bond ETF seller in Q4 2025 was Jane Street, an estimated $426K sold.
Based on aggregated 13F filings for Q4 2025.