DOSSIER · 13F Holders · Q3 2026

TWILIO INC

6 institutions still hold TWILIO INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 90138F952·6 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$149M
visible holders
Holders
6
filers reporting
Concentration
89.56%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

6 institutions reported TWILIO INC in Q3 2026. IMC-Chicago, LLC leads at 89.6% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$133M456K0.03%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$9M32K0.01%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$4M15K0.01%Q3 2026
04
Capital Markets Trading UK LLP
CIK 0001719165
$1M11K0.02%Q1 2026
05
AlphaCore Capital LLC
CIK 0001713662
$197K300.00%Q3 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025