DOSSIER · 13F Holders · Q2 2026

BOSTON SCIENTIFIC CORP

9 institutions still hold BOSTON SCIENTIFIC CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 101137907·9 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$564M
visible holders
Holders
9
filers reporting
Concentration
79.46%
1832 Asset Management L.P. #1
top holder share
AI Holders Summary · Q2 2026

9 institutions reported BOSTON SCIENTIFIC CORP in Q2 2026. 1832 Asset Management L.P. leads at 79.5% 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
$448M10.5M0.22%Q2 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$44M1.0M0.01%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$37M873K0.02%Q2 2026
04
GROUP ONE TRADING LLC
CIK 0000932540
$21M483K0.03%Q2 2026
05
JPMORGAN CHASE & CO
CIK 0000019617
$10M222K0.00%Q2 2026
06
Sender Co & Partners, Inc.
CIK 0001659380
$4M90K1.11%Q2 2026
07
Fortis Capital Management LLC
CIK 0001802167
$854K20K0.10%Q2 2026
08
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$51K150.00%Q2 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025