DOSSIER · 13F Holders · Q2 2026

COMCAST CORP NEW

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

CUSIP 20030N901·10 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$102M
visible holders
Holders
10
filers reporting
Concentration
40.59%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

10 institutions reported COMCAST CORP NEW in Q2 2026. IMC-Chicago, LLC leads at 40.6% 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
$41M1.7M0.01%Q2 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$35M1.4M0.02%Q2 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$20M827K0.03%Q2 2026
04
Marathon Trading Investment Management LLC
CIK 0001572748
$2M100K0.08%Q2 2026
05
Burns Matteson Capital Management, LLC
CIK 0001894164
$795K32K0.25%Q2 2026
06
HRT FINANCIAL LP
CIK 0001475597
$786K26K0.00%Q4 2025
07
Maven Securities LTD
CIK 0001633046
$759K31K0.01%Q2 2026
08
New Age Alpha Advisors, LLC
CIK 0001764807
$142K1K0.01%Q2 2026
09
SG Americas Securities, LLC
CIK 0001313360
$24K32K0.00%Q1 2026
10
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025