DOSSIER · 13F Holders · Q3 2026

REDDIT INC

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

CUSIP 75734B950·6 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$337M
visible holders
Holders
6
filers reporting
Concentration
79.55%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

6 institutions reported REDDIT INC in Q3 2026. IMC-Chicago, LLC leads at 79.5% 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
$268M1.9M0.06%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$54M377K0.03%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$12M83K0.02%Q3 2026
04
JPMORGAN CHASE & CO
CIK 0000019617
$2M16K0.00%Q3 2026
05
Capital Markets Trading UK LLP
CIK 0001719165
$943K7K0.01%Q1 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025