DOSSIER · 13F Holders · Q2 2026
AMPGR

AMPLITECH GROUP INC

6 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 03211Q135·6 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$6M
visible holders
Holders
6
filers reporting
Concentration
44.60%
Cable Car Capital, LP #1
top holder share
AI Holders Summary · Q2 2026

6 institutions reported AMPGR in Q2 2026. Cable Car Capital, LP leads at 44.6% 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
$2M1.3M0.05%Q2 2026
02
HEIGHTS CAPITAL MANAGEMENT, INC
CIK 0001081698
$2M1.2M0.57%Q2 2026
03
Warberg Asset Management LLC
CIK 0001597506
$596K309K0.11%Q2 2026
04
EQUITEC PROPRIETARY MARKETS, LLC
CIK 0001143261
$3K2K0.00%Q2 2026
05
WELLS FARGO & COMPANY/MN
CIK 0000072971
$2K1K0.00%Q2 2026
06
Clear Street Group Inc.
CIK 0001881567
$5162620.00%Q2 2026