13F Insight
DOSSIER · 13F Holders · Q1 2026Healthcare · Surgical & Medical Instruments & ApparatusHigh-convictionMulti-bagger
BSX

BOSTON SCIENTIFIC CORP

1,760 institutions still hold BOSTON SCIENTIFIC CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 101137107·Surgical & Medical Instruments & Apparatus·1,760 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 5.9%
vs prior quarter
13F value held
$44.2B
67.0% inst. owned
of float
Holders
1,760
-3 QoQ
filers reporting
Activity
+67 / −96
+910 added · −850 reduced
this quarter
Concentration
18.72%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

1,760 institutions reported BSX in Q1 2026. BlackRock, Inc. leads at 18.7% of the visible book. -3 net institutions QoQ — distribution reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$8.3B131.8M0.14%Q1 202602
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$6.0B96.4M0.15%Q1 202603
FMR LLC
CIK 0000315066
$4.7B74.2M0.25%Q1 202604
STATE STREET CORP
CIK 0000093751
$4.3B68.0M0.15%Q1 202605
JPMORGAN CHASE & CO
CIK 0000019617
$2.1B33.4M0.13%Q1 202606
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$2.1B33.3M0.13%Q1 202607
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
$2.0B32.5M1.61%Q1 202608
Vanguard Portfolio Management
CIK 0002100121
$1.9B29.8M0.10%Q1 202609
BANK OF AMERICA CORP /DE/
CIK 0000070858
$1.4B22.8M0.10%Q1 202610
MORGAN STANLEY
CIK 0000895421
$1.4B22.3M0.08%Q1 202611
GOLDMAN SACHS GROUP INC
CIK 0000886982
$1.2B19.4M0.14%Q1 202612
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$1.2B18.8M0.22%Q1 202613
D. E. Shaw & Co., Inc.
CIK 0001009207
$1.1B11.2M0.59%Q4 202514
JANUS HENDERSON GROUP PLC
CIK 0001274173
$1.0B16.5M0.49%Q1 202615
UBS Group AG
CIK 0001610520
$992M15.8M0.15%Q1 202616
Capital World Investors
CIK 0001422849
$961M15.3M0.13%Q1 202617
FRANKLIN RESOURCES INC
CIK 0000038777
$923M14.7M0.23%Q1 202618
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main
CIK 0001694217
$888M14.2M0.79%Q1 202619
Amundi
CIK 0001330387
$886M14.1M0.24%Q1 202620
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$872M13.9M0.47%Q1 2026
Page 1 of 88
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