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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — AMPGZ
Institutional Holdings
Insider Transactions
US Institutional Ownership
8.7%
Institution
Shares
Value
Ownership %
Change
Filing Date
Cable Car Capital, LP
1.71M
$2.0M
6.68%
+764.4K
2026-06-30
EQUITEC PROPRIETARY MARKETS, LLC
334.8K
--
1.31%
+288.3K
2026-06-30
Warberg Asset Management LLC
174.4K
--
0.68%
+7.7K
2026-06-30
WELLS FARGO & COMPANY/MN
1.0K
--
0.00%
--
2026-06-30
UBS Group AG
861
--
0.00%
--
2026-06-30
