MFS Active Core Plus Bond ETF
MFSB
13 hedge funds and large institutions have $58.4M invested in MFS Active Core Plus Bond ETF in 2025 Q3 according to their latest regulatory filings, with 6 funds opening new positions, 5 increasing their positions, 1 reducing their positions, and 2 closing their positions.
400% more repeat investments, than reductions
Existing positions increased: 5 | Existing positions reduced: 1
200% more first-time investments, than exits
New positions opened: 6 | Existing positions closed: 2
82% more capital invested
Capital invested by funds: $32.1M → $58.4M (+$26.3M)
44% more funds holding
Funds holding: 9 → 13 (+4)
5.48% more ownership
Funds ownership: 6.91% → 12.39% (+5.5%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LPL Financial
San Diego,
California
|
+$10.1M |
| 2 |
FA
Fermata Advisors
Sonoma,
California
|
+$3.28M |
| 3 |
Cambridge Investment Research Advisors
Fairfield,
Iowa
|
+$2.81M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$2.31M |
| 5 |
IWC
Integrated Wealth Concepts
Waltham,
Massachusetts
|
+$2.16M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Goldman Sachs
New York
|
-$486K |
| 2 |
Jane Street
New York
|
-$452K |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$4.94K |
MFSB Hedge Fund Activity: Q3 2025 in Review
13 of the 7,646 institutional investors tracked by Wall St. Rank reported a position in MFS Active Core Plus Bond ETF (MFSB) for Q3 2025, worth a combined $58.4M — up 82% from $32.1M a quarter earlier.
Buyers outnumbered sellers: 6 funds opened new MFSB positions and 2 closed out — a net gain of 4 holders — while 5 added to existing stakes and 1 trimmed.
The largest buyer was LPL Financial, opening a new position worth an estimated $10.1M. The largest seller was Goldman Sachs, exiting entirely with an estimated $486K sold.
- 13 institutional investors held MFS Active Core Plus Bond ETF (MFSB) as of Q3 2025, up from 9 in Q2 2025.
- Funds reported $58.4M of MFS Active Core Plus Bond ETF stock for Q3 2025, up 82% quarter-over-quarter.
- 6 funds opened new MFS Active Core Plus Bond ETF positions in Q3 2025 and 2 closed out, a net change of +4 holders.
- The largest MFS Active Core Plus Bond ETF buyer in Q3 2025 was LPL Financial, an estimated $10.1M added.
- The largest MFS Active Core Plus Bond ETF seller in Q3 2025 was Goldman Sachs, an estimated $486K sold.
Based on aggregated 13F filings for Q3 2025.