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Boston Scientific
BSX

1,643 hedge funds and large institutions have $135B invested in Boston Scientific in 2025 Q1 according to their latest regulatory filings, with 230 funds opening new positions, 667 increasing their positions, 553 reducing their positions, and 73 closing their positions.

New
Increased
Maintained
Reduced
Closed

215% more first-time investments, than exits

New positions opened: 230 | Existing positions closed: 73

31% more call options, than puts

Call options by funds: $1.07B | Put options by funds: $819M

31% more funds holding in top 10

Funds holding in top 10: 39 → 51 (+12)

21% more repeat investments, than reductions

Existing positions increased: 667 | Existing positions reduced: 553

12% more capital invested

Capital invested by funds: $120B → $135B (+$14.8B)

9% more funds holding

Funds holding: 1,513 → 1,643 (+130)

0.19% less ownership

Funds ownership: 90.98% → 90.79% (-0.19%)

Holders
1,643
Holders Change
+130
Holders Change %
+8.59%
% of All Funds
22.03%
Holding in Top 10
51
Holding in Top 10 Change
+12
Holding in Top 10 Change %
+30.77%
% of All Funds
0.68%
New
230
Increased
667
Reduced
553
Closed
73
Calls
$1.07B
Puts
$819M
Net Calls
+$256M
Net Calls Change
+$371M

Top Buyers

Rank Fund Capital Flow
1
JP Morgan Chase
JP Morgan Chase
New York
+$532M
2
Bank of America
Bank of America
North Carolina
+$411M
3
Two Sigma Advisers
Two Sigma Advisers
New York
+$347M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$310M
5
SP
SurgoCap Partners
New York
+$267M

Top Sellers

Rank Fund Capital Flow
1
Franklin Resources
Franklin Resources
California
-$915M
2
DZ Bank
DZ Bank
Germany
-$460M
3
Fidelity Investments
Fidelity Investments
Massachusetts
-$387M
4
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
-$316M
5
Impax Asset Management Group
Impax Asset Management Group
United Kingdom
-$306M
Name Holding Trade Value Shares
Change 		Change in
Stake
IAIM
1376
International Assets Investment Management
Florida
$207K -$22.5K -223 -1%
TA
1377
Teramo Advisors
Florida
$207K +$206K +2,050 New
VCP
1378
Verus Capital Partners
Arizona
$207K +$206K +2,050 New
FAM
1379
Formidable Asset Management
Ohio
$206K +$206K +2,045 New
HT
1380
Heritage Trust
Oklahoma
$206K +$206K +2,045 New
VCM
1381
Vivaldi Capital Management
Illinois
$206K +$206K +2,043 New
GKIM
1382
GW&K Investment Management
Massachusetts
$206K +$1.51K +15 +0.7%
IWA
1383
Inspirion Wealth Advisors
Illinois
$205K +$205K +2,033 New
AP
1384
Appleton Partners
Massachusetts
$204K +$204K +2,024 New
TF
1385
Talbot Financial
Washington
$204K +$203K +2,019 New
ONB
1386
Old National Bancorp
Indiana
$203K +$203K +2,016 New
AG
1387
Algert Global
California
$202K -$134K -1,330 -40%
BCM
1388
Birmingham Capital Management
Alabama
$202K +$201K +2,000 New
CPW
1389
Cove Private Wealth
New York
$202K +$201K +2,000 New
ERWM
1390
Elk River Wealth Management
Colorado
$202K +$201K +2,000 New
JWBC
1391
J.W. Burns & Co
New York
$202K +$201K +2,000 New
RLWM
1392
RF&L Wealth Management
Massachusetts
$202K +$201K +2,000 New
SFS
1393
Symphony Financial Services
Ohio
$202K +$201K +2,000 New
UPS
1394
UHLMANN PRICE SECURITIES
Illinois
$202K +$201K +2,000 New
BBHC
1395
Brown Brothers Harriman & Co
New York
$201K -$7.05K -70 -3%
CWA
1396
Consilio Wealth Advisors
Washington
$201K +$201K +1,996 New
RMDI
1397
R.M. Davis Inc
Maine
$201K +$201K +1,996 New
AWM
1398
Aprio Wealth Management
Georgia
$201K +$201K +1,994 New
HTC
1399
Haverford Trust Company
Pennsylvania
$201K +$201K +1,993 New
SOW
1400
State of Wyoming
Wyoming
$199K -$69.7K -692 -26%
54 55
56
57 58

BSX Hedge Fund Activity: Q1 2025 in Review

1,643 of the 7,459 institutional investors tracked by Wall St. Rank reported a position in Boston Scientific (BSX) for Q1 2025, worth a combined $135B — up 12% from $120B a quarter earlier.

Buyers outnumbered sellers: 230 funds opened new BSX positions and 73 closed out — a net gain of 157 holders — while 667 added to existing stakes and 553 trimmed.

The largest buyer was JP Morgan Chase, adding an estimated $532M. The largest seller was Franklin Resources, cutting an estimated $915M.

  • 1,643 institutional investors held Boston Scientific (BSX) as of Q1 2025, up from 1,513 in Q4 2024.
  • Funds reported $135B of Boston Scientific stock for Q1 2025, up 12% quarter-over-quarter.
  • 230 funds opened new Boston Scientific positions in Q1 2025 and 73 closed out, a net change of +157 holders.
  • The largest Boston Scientific buyer in Q1 2025 was JP Morgan Chase, an estimated $532M added.
  • The largest Boston Scientific seller in Q1 2025 was Franklin Resources, an estimated $915M sold.

Based on aggregated 13F filings for Q1 2025.