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Amplitude, Inc. — SCHEDULE 13G/A Filings

8 SCHEDULE 13G/A filings on record

This page lists all SCHEDULE 13G/A filings submitted to the SEC by Amplitude, Inc. (AMPL), sorted by most recent first. Each row links to the full filing on EdgarLookup. Amplitude, Inc. has filed 8 SCHEDULE 13G/A documents with the SEC since 2021. To view all SEC filings by Amplitude, Inc., see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-Q 144 3 4 4/A 424B3 424B4 5 8-A12B 8-K ARS CERT CORRESP D DEF 14A DEFA14A DRS DRS/A DRSLTR EFFECT FWP POS AM PRE 14A S-1 S-1/A S-8 SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13D/A SCHEDULE 13G SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
SCHEDULE 13G/A 0000102909-26-000600 Mar 26, 2026
SCHEDULE 13G/A 0001897612-26-000287 Feb 17, 2026
SCHEDULE 13G/A 0000102909-26-000018 Jan 7, 2026
SCHEDULE 13G/A 0001897612-25-000551 Nov 14, 2025
SCHEDULE 13G/A 0001140361-25-030090 Aug 11, 2025
SCHEDULE 13G/A 0000315066-25-001964 Aug 6, 2025
SCHEDULE 13G/A 0001415889-25-013173 May 15, 2025
SCHEDULE 13G/A 0000315066-25-001437 May 12, 2025