Amplitude, Inc. SEC filings AMPL
Amplitude, Inc. has 527 filings in SEC EDGAR's recent list, going back to Jun 11, 2021. Its latest annual report, Form ARS, was filed on Apr 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 6, 2026 | Nov 4, 2026 |
| 144 | Notice of proposed sale | Nov 5, 2026 | — |
| 144 | Notice of proposed sale | Nov 4, 2026 | — |
| 4 | Insider transaction | Oct 28, 2026 | Oct 26, 2026 |
| 144 | Notice of proposed sale | Oct 28, 2026 | — |
| 4 | Insider transaction | Oct 27, 2026 | Oct 23, 2026 |
| 144 | Notice of proposed sale | Oct 26, 2026 | — |
| 144 | Notice of proposed sale | Oct 23, 2026 | — |
| 4 | Insider transaction | Oct 15, 2026 | Oct 15, 2026 |
| 3 | Initial insider ownership | Oct 15, 2026 | Oct 15, 2026 |
| 4 | Insider transaction | Oct 7, 2026 | Oct 5, 2026 |
| 4 | Insider transaction | Oct 7, 2026 | Oct 5, 2026 |
| 4 | Insider transaction | Oct 6, 2026 | Oct 2, 2026 |
| 4 | Insider transaction | Oct 2, 2026 | Sep 30, 2026 |
| 144 | Notice of proposed sale | Oct 2, 2026 | — |
| 144 | Notice of proposed sale | Oct 1, 2026 | — |
| 144 | Notice of proposed sale | Sep 30, 2026 | — |
| 4 | Insider transaction | Sep 14, 2026 | Sep 10, 2026 |
| 144 | Notice of proposed sale | Sep 10, 2026 | — |
| 4 | Insider transaction | Sep 9, 2026 | Sep 4, 2026 |
| 144 | Notice of proposed sale | Sep 4, 2026 | — |
| 4 | Insider transaction | Aug 18, 2026 | Aug 17, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 17, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 17, 2026 |
| 4 | Insider transaction | Aug 18, 2026 | Aug 17, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 6, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 27, 2026 | — |
| 4 | Insider transaction | Jul 10, 2026 | Jul 8, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jul 5, 2026 |
| 4 | Insider transaction | Jul 7, 2026 | Jul 5, 2026 |
| 4/A | Filing | Jun 16, 2026 | Jun 1, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 12, 2026 |
| 144 | Notice of proposed sale | Jun 12, 2026 | — |
| 144/A | Filing | Jun 12, 2026 | — |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 11, 2026 | Jun 9, 2026 |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 18, 2026 | — |
| 4 | Insider transaction | May 6, 2026 | May 4, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 28, 2026 | — |
| 4 | Insider transaction | Apr 22, 2026 | Apr 21, 2026 |
| 4 | Insider transaction | Apr 17, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | Apr 17, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | Apr 17, 2026 | Apr 15, 2026 |
| 4 | Insider transaction | Apr 7, 2026 | Apr 5, 2026 |
| 4 | Insider transaction | Apr 7, 2026 | Apr 5, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 7, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 7, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 3 | Initial insider ownership | Mar 17, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 144 | Notice of proposed sale | Mar 5, 2026 | — |
| 4 | Insider transaction | Feb 17, 2026 | Feb 15, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 15, 2026 |
| 4 | Insider transaction | Feb 17, 2026 | Feb 15, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 7, 2026 | — |
| 4 | Insider transaction | Dec 30, 2025 | Dec 26, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 24, 2025 |
| 144 | Notice of proposed sale | Dec 29, 2025 | — |
| 4 | Insider transaction | Dec 17, 2025 | Dec 15, 2025 |
| 144 | Notice of proposed sale | Dec 15, 2025 | — |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 18, 2025 | Nov 15, 2025 |
| 4 | Insider transaction | Nov 18, 2025 | Nov 15, 2025 |
| 4 | Insider transaction | Nov 18, 2025 | Nov 15, 2025 |
| 144 | Notice of proposed sale | Nov 17, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Nov 13, 2025 | Nov 11, 2025 |
| 4 | Insider transaction | Nov 12, 2025 | Nov 7, 2025 |
| 144 | Notice of proposed sale | Nov 12, 2025 | — |
| 4 | Insider transaction | Oct 17, 2025 | Oct 15, 2025 |
| 144 | Notice of proposed sale | Oct 15, 2025 | — |
| 4 | Insider transaction | Oct 7, 2025 | Oct 5, 2025 |
| 4 | Insider transaction | Sep 17, 2025 | Sep 15, 2025 |
| 144 | Notice of proposed sale | Sep 15, 2025 | — |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 4 | Insider transaction | Aug 19, 2025 | Aug 15, 2025 |
| 144 | Notice of proposed sale | Aug 15, 2025 | — |
| 144 | Notice of proposed sale | Aug 11, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 11, 2025 | — |
| 4 | Insider transaction | Aug 6, 2025 | Aug 4, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2025 | — |
| 4 | Insider transaction | Jul 17, 2025 | Jun 11, 2025 |
| 144 | Notice of proposed sale | Jul 15, 2025 | — |
| 4 | Insider transaction | Jul 8, 2025 | Jul 5, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 12, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 12, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 12, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 12, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 12, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 12, 2025 |
| 4 | Insider transaction | Jun 13, 2025 | Jun 11, 2025 |
| 4 | Insider transaction | Jun 13, 2025 | Jun 11, 2025 |
| 144 | Notice of proposed sale | Jun 11, 2025 | — |
| 144 | Notice of proposed sale | Jun 11, 2025 | — |
| 4 | Insider transaction | May 21, 2025 | May 19, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 144 | Notice of proposed sale | May 19, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 4 | Insider transaction | May 14, 2025 | May 12, 2025 |
| 4 | Insider transaction | May 12, 2025 | May 8, 2025 |
| 144 | Notice of proposed sale | May 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2025 | — |
| 144 | Notice of proposed sale | May 8, 2025 | — |
| 4 | Insider transaction | Apr 29, 2025 | Apr 25, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 25, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 25, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 5, 2025 |
| 4 | Insider transaction | Apr 8, 2025 | Apr 5, 2025 |
| 4 | Insider transaction | Mar 17, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 12, 2025 | Mar 11, 2025 |
| 144 | Notice of proposed sale | Mar 11, 2025 | — |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 25, 2025 | — |
| 4 | Insider transaction | Feb 25, 2025 | Feb 22, 2025 |
| 3 | Initial insider ownership | Feb 25, 2025 | Feb 22, 2025 |
| 4 | Insider transaction | Feb 24, 2025 | Feb 20, 2025 |
| 144 | Notice of proposed sale | Feb 24, 2025 | — |
| 4 | Insider transaction | Feb 18, 2025 | Feb 15, 2025 |
| 4 | Insider transaction | Feb 18, 2025 | Feb 15, 2025 |
| 4 | Insider transaction | Jan 29, 2025 | Jan 28, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 5, 2025 |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 144 | Notice of proposed sale | Dec 13, 2024 | — |
| 4 | Insider transaction | Nov 19, 2024 | Nov 18, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 4 | Insider transaction | Nov 19, 2024 | Nov 15, 2024 |
| 144 | Notice of proposed sale | Nov 18, 2024 | — |
| 4 | Insider transaction | Nov 14, 2024 | Nov 12, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 13, 2024 | — |
| 144 | Notice of proposed sale | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| 4 | Insider transaction | Oct 8, 2024 | Oct 5, 2024 |
| 4 | Insider transaction | Sep 17, 2024 | Sep 15, 2024 |
| 4 | Insider transaction | Aug 20, 2024 | Aug 19, 2024 |
| 144 | Notice of proposed sale | Aug 19, 2024 | — |
| 4 | Insider transaction | Aug 16, 2024 | Aug 15, 2024 |
| 3 | Initial insider ownership | Aug 9, 2024 | Aug 1, 2024 |
| 4 | Insider transaction | Jul 9, 2024 | Jul 5, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 10, 2024 | — |
| 4 | Insider transaction | May 20, 2024 | May 17, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 144 | Notice of proposed sale | May 17, 2024 | — |
| 4 | Insider transaction | Apr 16, 2024 | Apr 15, 2024 |
| 4 | Insider transaction | Apr 16, 2024 | Apr 15, 2024 |
| 4 | Insider transaction | Apr 9, 2024 | Apr 5, 2024 |
| 4 | Insider transaction | Feb 28, 2024 | Feb 26, 2024 |
| 4 | Insider transaction | Feb 26, 2024 | Feb 23, 2024 |
| 144 | Notice of proposed sale | Feb 23, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2024 | — |
| 4 | Insider transaction | Feb 16, 2024 | Feb 15, 2024 |
| 4 | Insider transaction | Feb 16, 2024 | Feb 15, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2024 | — |
| 4 | Insider transaction | Feb 5, 2024 | Feb 1, 2024 |
| SC 13G | Ownership over 5% (passive) | Jan 29, 2024 | — |
| 4 | Insider transaction | Jan 9, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Jan 9, 2024 | Jan 2, 2024 |
| 4 | Insider transaction | Dec 13, 2023 | Dec 11, 2023 |
| 4 | Insider transaction | Nov 20, 2023 | Nov 17, 2023 |
| 4 | Insider transaction | Nov 17, 2023 | Nov 15, 2023 |
| 4 | Insider transaction | Nov 17, 2023 | Nov 15, 2023 |
| 144 | Notice of proposed sale | Nov 17, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 14, 2023 | — |
| 4 | Insider transaction | Aug 21, 2023 | Aug 17, 2023 |
| 4 | Insider transaction | Aug 17, 2023 | Aug 15, 2023 |
| 4 | Insider transaction | Aug 17, 2023 | Aug 15, 2023 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Services-Prepackaged Software (SIC 7372)
- Listed as
- AMPL (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- San Francisco, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1866692
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.