DOSSIER · 13F Holders · Q3 2026

ROKU INC

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

CUSIP 77543R902·7 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$83M
visible holders
Holders
7
filers reporting
Concentration
62.43%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

7 institutions reported ROKU INC in Q3 2026. IMC-Chicago, LLC leads at 62.4% 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
$52M339K0.01%Q3 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$16M108K0.02%Q3 2026
03
Optiver Holding B.V.
CIK 0001859606· Market maker
$8M55K0.00%Q2 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$7M43K0.00%Q3 2026
05
SG Americas Securities, LLC
CIK 0001313360
$431K41K0.00%Q1 2026
06
OSAIC HOLDINGS, INC.
CIK 0001677044
$6K10.00%Q3 2026
07
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025