DOSSIER · 13F Holders · Q3 2026

ALTICE USA INC

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

CUSIP 02156K903·5 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$1M
visible holders
Holders
5
filers reporting
Concentration
70.59%
Cable Car Capital, LP #1
top holder share
AI Holders Summary · Q3 2026

5 institutions reported ALTICE USA INC in Q3 2026. Cable Car Capital, LP leads at 70.6% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Cable Car Capital, LP
CIK 0001699575
$725K500K0.02%Q2 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$166K168K0.00%Q3 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$109K111K0.00%Q3 2026
04
IMC-Chicago, LLC
CIK 0001452861· Market maker
$27K27K0.00%Q3 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025