DOSSIER · 13F Holders · Q3 2026

ALCOA CORP

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

CUSIP 013872956·6 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$78M
visible holders
Holders
6
filers reporting
Concentration
48.16%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

6 institutions reported ALCOA CORP in Q3 2026. IMC-Chicago, LLC leads at 48.2% 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
$38M897K0.01%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$21M491K0.01%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$12M228K0.02%Q2 2026
04
JPMORGAN CHASE & CO
CIK 0000019617
$6M120K0.00%Q2 2026
05
HRT FINANCIAL LP
CIK 0001475597
$2M31K0.01%Q4 2025
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025