Amplitude, Inc. — All Filings
460 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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D
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UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4 | PRIMARY DOCUMENT | 0001562180-22-003977 | May 11, 2022 | May 10, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-028309 | May 11, 2022 | May 9, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-028305 | May 11, 2022 | May 9, 2022 |
| 4 | FORM 4 SUBMISSION | 0001209191-22-028298 | May 11, 2022 | May 9, 2022 |
| 4 | PRIMARY DOCUMENT | 0001562180-22-003927 | May 10, 2022 | — |
| 10-Q | 10-Q | 0000950170-22-007901 | May 5, 2022 | Mar 31, 2022 |
| 8-K | 8-K | 0000950170-22-007382 | May 4, 2022 | — |
| SC 13D/A | SC 13D/A | 0001193125-22-136759 | May 2, 2022 | — |
| DEFA14A | DEFA14A | 0001193125-22-117823 | Apr 25, 2022 | — |
| DEF 14A | DEF 14A | 0001193125-22-117799 | Apr 25, 2022 | Jun 9, 2022 |
| 4 | PRIMARY DOCUMENT | 0001562180-22-003318 | Apr 7, 2022 | Apr 5, 2022 |
| 4 | PRIMARY DOCUMENT | 0001562180-22-003317 | Apr 7, 2022 | Apr 5, 2022 |
| 4 | FORM 4 | 0001567619-22-007668 | Mar 29, 2022 | Mar 28, 2022 |
| 4 | FORM 4 | 0001567619-22-006897 | Mar 14, 2022 | Mar 10, 2022 |
| SC 13G/A | — | 0000315066-22-001477 | Mar 10, 2022 | — |
| SC 13D | SC 13D | 0001193125-22-066352 | Mar 7, 2022 | — |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-22-005498 | Feb 23, 2022 | Feb 18, 2022 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-22-005497 | Feb 23, 2022 | Feb 18, 2022 |
| 4 | FORM 4 | 0001567619-22-005410 | Feb 23, 2022 | Feb 18, 2022 |
| 4 | FORM 4 | 0001567619-22-005409 | Feb 23, 2022 | Feb 18, 2022 |
| 4 | FORM 4 | 0001567619-22-005406 | Feb 23, 2022 | Feb 17, 2022 |
| 4 | FORM 4 | 0001567619-22-005405 | Feb 23, 2022 | Feb 17, 2022 |
| 4 | PRIMARY DOCUMENT | 0001562180-22-001713 | Feb 22, 2022 | Feb 17, 2022 |
| S-8 | S-8 | 0001193125-22-045443 | Feb 17, 2022 | — |
| 10-K | 10-K | 0000950170-22-001372 | Feb 17, 2022 | Dec 31, 2021 |
| 8-K | 8-K | 0000950170-22-001348 | Feb 16, 2022 | — |
| 4 | PRIMARY DOCUMENT | 0001562180-22-001458 | Feb 14, 2022 | Feb 10, 2022 |
| SC 13G | SC 13G | 0001193125-22-042276 | Feb 14, 2022 | — |
| SC 13G | SC 13G | 0001104659-22-023181 | Feb 14, 2022 | — |
| SC 13G | SC 13G | 0001193125-22-042136 | Feb 14, 2022 | — |
| SC 13G | SC 13G | 0001193125-22-041934 | Feb 14, 2022 | — |
| SC 13G | SC 13G | 0001104659-22-022731 | Feb 14, 2022 | — |
| 5 | OWNERSHIP DOCUMENT | 0001104659-22-021491 | Feb 14, 2022 | Dec 31, 2021 |
| 5 | OWNERSHIP DOCUMENT | 0001104659-22-021484 | Feb 14, 2022 | Dec 31, 2021 |
| SC 13G | SC 13G | 0001104659-22-021473 | Feb 14, 2022 | — |
| SC 13G | SC 13G | 0001193125-22-037626 | Feb 14, 2022 | — |
| SC 13G/A | — | 0000315066-22-001397 | Feb 10, 2022 | — |
| SC 13G | SCHEDULE 13G | 0001104659-22-016478 | Feb 9, 2022 | — |
| SC 13G | — | 0000315066-22-000822 | Feb 9, 2022 | — |
| 8-K | 8-K | 0000950170-22-000323 | Jan 14, 2022 | Jan 11, 2022 |
| 4 | PRIMARY DOCUMENT | 0001562180-22-000463 | Jan 13, 2022 | Jan 11, 2022 |
| 4 | PRIMARY DOCUMENT | 0001562180-22-000049 | Jan 3, 2022 | Dec 22, 2021 |
| 4 | PRIMARY DOCUMENT | 0001562180-22-000048 | Jan 3, 2022 | Dec 30, 2021 |
| EFFECT | — | 9999999995-21-004774 | Dec 21, 2021 | — |
| POS AM | POS AM | 0001193125-21-362353 | Dec 20, 2021 | — |
| 4 | FORM 4 SUBMISSION | 0000899243-21-048406 | Dec 15, 2021 | Dec 13, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-069765 | Dec 15, 2021 | Dec 13, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-068805 | Dec 9, 2021 | Dec 7, 2021 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-21-148160 | Dec 9, 2021 | Dec 7, 2021 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-21-145909 | Dec 2, 2021 | Nov 30, 2021 |