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MFSB

MFS Active Core Plus Bond ETF
MFSB

6 hedge funds and large institutions have $2.14M invested in MFS Active Core Plus Bond ETF in 2025 Q1 according to their latest regulatory filings, with 5 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

500% more funds holding

Funds holding: 1 → 6 (+5)

323% more capital invested

Capital invested by funds: $505K → $2.14M (+$1.63M)

3.43% more ownership

Funds ownership: 1.79% → 5.22% (+3.4%)

Holders
6
Holders Change
+5
Holders Change %
+500%
% of All Funds
0.08%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
5
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Brown Advisory
Brown Advisory
Maryland
+$654K
2
Jane Street
Jane Street
New York
+$396K
3
Commonwealth Equity Services
Commonwealth Equity Services
Massachusetts
+$299K
4
Goldman Sachs
Goldman Sachs
New York
+$245K
5
JP Morgan Chase
JP Morgan Chase
New York
+$24.7K

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
Brown Advisory
1
Brown Advisory
Maryland
$657K +$654K +26,480 New
DC
2
Davenport & Co
Virginia
$510K – – –
Jane Street
3
Jane Street
New York
$398K +$396K +16,033 New
Commonwealth Equity Services
4
Commonwealth Equity Services
Massachusetts
$301K +$299K +12,123 New
Goldman Sachs
5
Goldman Sachs
New York
$246K +$245K +9,936 New
JP Morgan Chase
6
JP Morgan Chase
New York
$24.8K +$24.7K +1,000 New

MFSB Hedge Fund Activity: Q1 2025 in Review

6 of the 7,464 institutional investors tracked by Wall St. Rank reported a position in MFS Active Core Plus Bond ETF (MFSB) for Q1 2025, worth a combined $2.14M — up 323% from $505K a quarter earlier.

Buyers outnumbered sellers: 5 funds opened new MFSB positions and 0 closed out — a net gain of 5 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Brown Advisory, opening a new position worth an estimated $654K.

  • 6 institutional investors held MFS Active Core Plus Bond ETF (MFSB) as of Q1 2025, up from 1 in Q4 2024.
  • Funds reported $2.14M of MFS Active Core Plus Bond ETF stock for Q1 2025, up 323% quarter-over-quarter.
  • 5 funds opened new MFS Active Core Plus Bond ETF positions in Q1 2025 and 0 closed out, a net change of +5 holders.
  • The largest MFS Active Core Plus Bond ETF buyer in Q1 2025 was Brown Advisory, an estimated $654K added.

Based on aggregated 13F filings for Q1 2025.