DOSSIER · 13F Holders · Q1 2026

INSULET CORP

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

CUSIP 45784P951·4 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$8M
visible holders
Holders
4
filers reporting
Concentration
57.78%
SG Americas Securities, LLC #1
top holder share
AI Holders Summary · Q1 2026

4 institutions reported INSULET CORP in Q1 2026. SG Americas Securities, LLC leads at 57.8% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
SG Americas Securities, LLC
CIK 0001313360
$5M293K0.01%Q1 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$4M23K0.00%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$15K1000.00%Q2 2026
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025