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.
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 | — |