DOSSIER · 13F Holders · Q2 2026

AMPLITECH GROUP INC

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

CUSIP 03211Q900·3 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$11M
visible holders
Holders
3
filers reporting
Concentration
77.14%
GROUP ONE TRADING LLC #1
top holder share
AI Holders Summary · Q2 2026

3 institutions reported AMPLITECH GROUP INC in Q2 2026. GROUP ONE TRADING LLC leads at 77.1% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
GROUP ONE TRADING LLC
CIK 0000932540
$8M1.2M0.01%Q2 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$2M268K0.00%Q2 2026
03
IMC-Chicago, LLC
CIK 0001452861· Market maker
$634K91K0.00%Q2 2026