13F Insight
DOSSIER · 13F Holders · Q3 2026

BOSTON SCIENTIFIC CORP

10 institutions still hold BOSTON SCIENTIFIC CORP as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 101137907·10 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$586M
visible holders
Holders
10
filers reporting
Concentration
78.17%
1832 Asset Management L.P. #1
top holder share
AI Holders Summary · Q3 2026

10 institutions reported BOSTON SCIENTIFIC CORP in Q3 2026. 1832 Asset Management L.P. leads at 78.2% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
1832 Asset Management L.P.
CIK 0000944388
$458M10.5M0.23%Q3 202602
GROUP ONE TRADING LLC
CIK 0000932540
$43M993K0.06%Q3 202603
IMC-Chicago, LLC
CIK 0001452861· Market maker
$42M960K0.01%Q3 202604
SIMPLEX TRADING, LLC
CIK 0001488542
$29M675K0.02%Q3 202605
JPMORGAN CHASE & CO
CIK 0000019617
$9M194K0.00%Q3 202606
Sender Co & Partners, Inc.
CIK 0001659380
$4M90K1.11%Q2 202607
Fortis Capital Management LLC
CIK 0001802167
$873K20K0.08%Q3 202608
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$51K150.00%Q2 202609
Phoenix Financial Ltd.
CIK 0001679543
$87320K0.00%Q3 202610
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025