DOSSIER · 13F Holders · Q2 2026

AXT INC

6 institutions still hold AXT INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 00246W953·6 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$104M
visible holders
Holders
6
filers reporting
Concentration
55.98%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

6 institutions reported AXT INC in Q2 2026. IMC-Chicago, LLC leads at 56.0% 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
$58M807K0.01%Q2 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$26M360K0.04%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$19M260K0.01%Q2 2026
04
Aristides Capital LLC
CIK 0001595521
$937K13K0.18%Q2 2026
05
Potomac Capital Management, Inc.
CIK 0001418746
$85K2K0.07%Q1 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025