DOSSIER · 13F Holders · Q2 2026

AEHR TEST SYS

5 institutions still hold AEHR TEST SYS as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 00760J958·5 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$120M
visible holders
Holders
5
filers reporting
Concentration
55.49%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

5 institutions reported AEHR TEST SYS in Q2 2026. IMC-Chicago, LLC leads at 55.5% 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
$67M696K0.02%Q2 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$49M510K0.07%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$4M38K0.00%Q2 2026
04
HRT FINANCIAL LP
CIK 0001475597
$973K48K0.00%Q4 2025
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025