Ambarella Inc SEC filings AMBA
Ambarella Inc has 1,000 filings in SEC EDGAR's recent list, going back to Feb 17, 2017. Its latest annual report, Form ARS, was filed on May 15, 2026 for the period ended Jan 31, 2026. The latest quarterly report (Form 10-Q) was filed on Sep 4, 2026, covering the quarter ended Jul 31, 2026. The most recent current report (Form 8-K) was filed on Sep 3, 2026 (results of operations). The company's fiscal year ends on January 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Sep 4, 2026 | Jul 31, 2026 |
| 8-K |
Current report
Results of operations
|
Sep 3, 2026 | Sep 3, 2026 |
| S-8 | Employee stock plan registration | Aug 3, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jul 1, 2026 | Jun 26, 2026 |
| DEFA14A | Additional proxy material | Jun 10, 2026 | — |
| 10-Q | Quarterly report | Jun 2, 2026 | Apr 30, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| 8-K |
Current report
Results of operations
|
May 28, 2026 | May 28, 2026 |
| ARS | Annual report to shareholders | May 15, 2026 | Jan 31, 2026 |
| DEFA14A | Additional proxy material | May 15, 2026 | — |
| DEF 14A | Proxy statement | May 15, 2026 | Jun 26, 2026 |
| 10-K | Annual report | Mar 23, 2026 | Jan 31, 2026 |
| 8-K |
Current report
Officer or director change
|
Feb 27, 2026 | Feb 23, 2026 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Feb 26, 2026 | Feb 23, 2026 |
| 10-Q | Quarterly report | Dec 4, 2025 | Oct 31, 2025 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Nov 25, 2025 | Nov 24, 2025 |
| 10-Q | Quarterly report | Sep 3, 2025 | Jul 31, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 28, 2025 | Aug 28, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 6, 2025 | Jun 4, 2025 |
| 10-Q | Quarterly report | Jun 3, 2025 | Apr 30, 2025 |
| SD | Specialized disclosure (conflict minerals) | Jun 2, 2025 | — |
| 8-K |
Current report
Results of operations
|
May 29, 2025 | May 29, 2025 |
| ARS | Annual report to shareholders | Apr 25, 2025 | Jan 31, 2025 |
| DEFA14A | Additional proxy material | Apr 25, 2025 | — |
| DEF 14A | Proxy statement | Apr 25, 2025 | Jun 4, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 4, 2025 | Apr 2, 2025 |
| 10-K | Annual report | Mar 28, 2025 | Jan 31, 2025 |
| 8-K |
Current report
Officer or director change
|
Feb 28, 2025 | Feb 24, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2025 | Feb 26, 2025 |
| 8-K |
Current report
Material agreement
|
Dec 27, 2024 | Dec 20, 2024 |
| S-8 | Employee stock plan registration | Dec 6, 2024 | — |
| 10-Q | Quarterly report | Dec 6, 2024 | Oct 31, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 26, 2024 | Nov 26, 2024 |
| 10-Q | Quarterly report | Sep 4, 2024 | Jul 31, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 27, 2024 | Aug 27, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 17, 2024 | Jun 12, 2024 |
| 10-Q | Quarterly report | Jun 6, 2024 | Apr 30, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2024 | — |
| 8-K |
Current report
Results of operations
|
May 30, 2024 | May 30, 2024 |
| DEFA14A | Additional proxy material | May 22, 2024 | — |
| ARS | Annual report to shareholders | May 3, 2024 | Jan 31, 2024 |
| DEFA14A | Additional proxy material | May 3, 2024 | — |
| DEF 14A | Proxy statement | May 3, 2024 | Jun 12, 2024 |
| 8-K |
Current report
Officer or director change
|
May 3, 2024 | May 2, 2024 |
| 10-K | Annual report | Mar 29, 2024 | Jan 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 28, 2024 | Feb 22, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 27, 2024 | Feb 27, 2024 |
| 10-Q | Quarterly report | Dec 8, 2023 | Oct 31, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 30, 2023 | Nov 30, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 18, 2023 | Oct 17, 2023 |
| 10-Q | Quarterly report | Sep 8, 2023 | Jul 31, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 29, 2023 | Aug 29, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 23, 2023 | Jun 21, 2023 |
| 10-Q | Quarterly report | Jun 6, 2023 | Apr 30, 2023 |
| SD | Specialized disclosure (conflict minerals) | May 31, 2023 | — |
| 8-K |
Current report
Results of operations
|
May 30, 2023 | May 30, 2023 |
| ARS | Annual report to shareholders | May 11, 2023 | Jan 31, 2023 |
| DEFA14A | Additional proxy material | May 11, 2023 | — |
| DEF 14A | Proxy statement | May 11, 2023 | — |
| 10-K | Annual report | Mar 31, 2023 | Jan 31, 2023 |
| 8-K |
Current report
Other events
|
Mar 14, 2023 | Mar 13, 2023 |
| 8-K |
Current report
Other events
|
Mar 10, 2023 | Mar 10, 2023 |
| 8-K |
Current report
Officer or director change
|
Mar 2, 2023 | Feb 24, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2023 | Feb 28, 2023 |
| UPLOAD | Letter from the SEC | Dec 21, 2022 | — |
| 10-Q | Quarterly report | Dec 9, 2022 | Oct 31, 2022 |
| 8-K |
Current report
Results of operations
|
Dec 1, 2022 | Dec 1, 2022 |
| CORRESP | Letter to the SEC | Nov 29, 2022 | — |
| UPLOAD | Letter from the SEC | Nov 15, 2022 | — |
| 10-Q | Quarterly report | Sep 8, 2022 | Jul 31, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 30, 2022 | Aug 30, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 9, 2022 | Jun 7, 2022 |
| 10-Q | Quarterly report | Jun 8, 2022 | Apr 30, 2022 |
| 8-K |
Current report
Results of operations
|
May 31, 2022 | May 31, 2022 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2022 | — |
| 8-K |
Current report
Officer or director change
|
Apr 27, 2022 | Apr 22, 2022 |
| DEFA14A | Additional proxy material | Apr 27, 2022 | — |
| DEF 14A | Proxy statement | Apr 27, 2022 | Jun 7, 2022 |
| 8-K |
Current report
Officer or director change
|
Apr 25, 2022 | Apr 17, 2022 |
| 10-K | Annual report | Apr 1, 2022 | Jan 31, 2022 |
| 8-K |
Current report
Officer or director change
|
Mar 28, 2022 | Mar 28, 2022 |
| 8-K |
Current report
Officer or director change
|
Mar 21, 2022 | Mar 19, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2022 | Feb 28, 2022 |
| 8-K |
Current report
Officer or director change
|
Feb 1, 2022 | Jan 27, 2022 |
| 10-Q | Quarterly report | Dec 10, 2021 | Oct 31, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 30, 2021 | Nov 30, 2021 |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 POS | Filing | Nov 19, 2021 | — |
| S-8 | Employee stock plan registration | Nov 19, 2021 | — |
| S-8 | Employee stock plan registration | Nov 19, 2021 | — |
| 8-K |
Current report
Officer or director change
|
Nov 9, 2021 | Nov 8, 2021 |
| 8-K |
Current report
Acquisition or sale of assets
|
Nov 8, 2021 | Nov 5, 2021 |
| 8-K |
Current report
Material agreement
|
Oct 26, 2021 | Oct 26, 2021 |
| 8-K |
Current report
Officer or director change
|
Sep 8, 2021 | Sep 1, 2021 |
| 10-Q | Quarterly report | Sep 8, 2021 | Jul 31, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 31, 2021 | Aug 31, 2021 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 23, 2021 | Jun 17, 2021 |
| 10-Q | Quarterly report | Jun 8, 2021 | Apr 30, 2021 |
| DEFA14A | Additional proxy material | Jun 7, 2021 | — |
| 8-K |
Current report
Results of operations
|
Jun 1, 2021 | Jun 1, 2021 |
| SD | Specialized disclosure (conflict minerals) | May 28, 2021 | — |
| DEFA14A | Additional proxy material | Apr 30, 2021 | — |
| DEF 14A | Proxy statement | Apr 30, 2021 | Jun 17, 2021 |
| S-8 | Employee stock plan registration | Apr 1, 2021 | — |
| 10-K | Annual report | Mar 31, 2021 | Jan 31, 2021 |
| 8-K |
Current report
Officer or director change
|
Mar 4, 2021 | Feb 26, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 2, 2021 | Mar 2, 2021 |
| 10-Q | Quarterly report | Dec 9, 2020 | Oct 31, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 23, 2020 | Nov 23, 2020 |
| 10-Q | Quarterly report | Sep 9, 2020 | Jul 31, 2020 |
| 8-K |
Current report
Results of operations
|
Sep 2, 2020 | Sep 2, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2020 | Jun 4, 2020 |
| 10-Q | Quarterly report | Jun 8, 2020 | Apr 30, 2020 |
| 8-K |
Current report
Results of operations
|
Jun 2, 2020 | Jun 2, 2020 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2020 | — |
| DEFA14A | Additional proxy material | Apr 23, 2020 | — |
| DEF 14A | Proxy statement | Apr 23, 2020 | Jun 4, 2020 |
| S-8 | Employee stock plan registration | Mar 27, 2020 | — |
| 10-K | Annual report | Mar 27, 2020 | Jan 31, 2020 |
| 8-K |
Current report
Results of operations
|
Mar 3, 2020 | Mar 3, 2020 |
| 10-Q | Quarterly report | Dec 6, 2019 | Oct 31, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 25, 2019 | Nov 25, 2019 |
| 8-K |
Current report
Other events
|
Oct 15, 2019 | Oct 15, 2019 |
| 10-Q | Quarterly report | Sep 6, 2019 | Jul 31, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 29, 2019 | Aug 29, 2019 |
| 8-K |
Current report
Material agreement
|
Aug 15, 2019 | Aug 8, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2019 | Jun 6, 2019 |
| 10-Q | Quarterly report | Jun 7, 2019 | Apr 30, 2019 |
| 8-K |
Current report
Results of operations
|
Jun 4, 2019 | Jun 4, 2019 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2019 | — |
| DEFA14A | Additional proxy material | Apr 26, 2019 | — |
| DEF 14A | Proxy statement | Apr 26, 2019 | Jun 6, 2019 |
| S-8 | Employee stock plan registration | Mar 29, 2019 | — |
| 10-K | Annual report | Mar 29, 2019 | Jan 31, 2019 |
| 8-K |
Current report
Officer or director change
|
Mar 6, 2019 | Feb 28, 2019 |
| 8-K |
Current report
Results of operations
|
Mar 5, 2019 | Mar 5, 2019 |
| 10-Q | Quarterly report | Dec 7, 2018 | Oct 31, 2018 |
| 8-K/A |
Amended current report
Officer or director change
|
Nov 30, 2018 | Oct 15, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 29, 2018 | Nov 29, 2018 |
| 8-K |
Current report
Officer or director change
|
Oct 18, 2018 | Oct 15, 2018 |
| 10-Q | Quarterly report | Sep 7, 2018 | Jul 31, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 30, 2018 | Aug 30, 2018 |
| 8-K |
Current report
Officer or director change
|
Aug 6, 2018 | Aug 6, 2018 |
| 10-Q | Quarterly report | Jun 8, 2018 | Apr 30, 2018 |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Other events
|
Jun 7, 2018 | Jun 4, 2018 |
| 8-K |
Current report
Results of operations
|
Jun 5, 2018 | Jun 5, 2018 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2018 | — |
| DEFA14A | Additional proxy material | May 30, 2018 | — |
| DEFA14A | Additional proxy material | Apr 27, 2018 | — |
| DEF 14A | Proxy statement | Apr 27, 2018 | Jun 6, 2018 |
| 8-K |
Current report
Officer or director change
|
Apr 18, 2018 | Apr 18, 2018 |
| S-8 | Employee stock plan registration | Mar 30, 2018 | — |
| 10-K | Annual report | Mar 30, 2018 | Jan 31, 2018 |
| 8-K |
Current report
Results of operations
|
Mar 1, 2018 | Mar 1, 2018 |
| 10-Q | Quarterly report | Dec 8, 2017 | Oct 31, 2017 |
| 8-K |
Current report
Results of operations
|
Nov 30, 2017 | Nov 30, 2017 |
| 10-Q | Quarterly report | Sep 8, 2017 | Jul 31, 2017 |
| 8-K |
Current report
Officer or director change
|
Aug 31, 2017 | Aug 29, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 31, 2017 | Aug 31, 2017 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2017 | Jun 7, 2017 |
| 10-Q | Quarterly report | Jun 8, 2017 | Apr 30, 2017 |
| 8-K |
Current report
Officer or director change
|
Jun 6, 2017 | May 31, 2017 |
| 8-K |
Current report
Results of operations
|
Jun 6, 2017 | Jun 6, 2017 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2017 | — |
| DEFA14A | Additional proxy material | Apr 27, 2017 | — |
| DEF 14A | Proxy statement | Apr 27, 2017 | Jun 7, 2017 |
| 8-K |
Current report
Other events
|
Mar 30, 2017 | Mar 28, 2017 |
| S-8 | Employee stock plan registration | Mar 30, 2017 | — |
| 10-K | Annual report | Mar 30, 2017 | Jan 31, 2017 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2017 | Feb 28, 2017 |
Showing 178 filings. 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
- Semiconductors & Related Devices (SIC 3674)
- Listed as
- AMBA (Nasdaq)
- Fiscal year ends
- January 31
- Headquarters
- Santa Clara, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1280263
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.