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AmpliTech Group, Inc. — DEFA14A Filings

4 DEFA14A filings on record

This page lists all DEFA14A filings submitted to the SEC by AmpliTech Group, Inc. (AMPGZ), sorted by most recent first. Each row links to the full filing on EdgarLookup. AmpliTech Group, Inc. has filed 4 DEFA14A documents with the SEC since 2011. To view all SEC filings by AmpliTech Group, Inc., see the full filings list.

Overview All Filings Financials Insiders
All 10-12G 10-12G/A 10-K 10-K/A 10-Q 10-Q/A 144 25-NSE 3 4 4/A 424B3 424B4 424B5 8-A12B 8-K 8-K/A CERT CORRESP D DEF 14A DEF 14C DEFA14A DEFR14A DEL AM EFFECT FWP NT 10-K NT 10-Q POS AM PRE 14C PRER14C S-1 S-1/A S-1MEF S-3 S-3/A S-8 SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13G SCHEDULE 13G/A SD UPLOAD
Form Description Accession Number Filed Period
DEFA14A DEFA14A 0001493152-25-020591 Nov 3, 2025
DEFA14A DEFA14A 0001493152-25-018241 Oct 16, 2025
DEFA14A 0001493152-24-041779 Oct 21, 2024
DEFA14A DEFA14A 0001477932-22-007979 Oct 27, 2022