Amprius Technologies, Inc. SEC filings AMPX-WT
Amprius Technologies, Inc. has 501 filings in SEC EDGAR's recent list, going back to Dec 15, 2021. Its latest annual report, Form ARS, was filed on Apr 29, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 28, 2026 (material agreement). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Material agreement
|
Sep 28, 2026 | Sep 23, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 13, 2026 | Aug 7, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2026 | Aug 4, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 17, 2026 | Jun 11, 2026 |
| 8-K/A |
Amended current report
Unregistered share sale
|
May 19, 2026 | May 6, 2026 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
May 7, 2026 | May 6, 2026 |
| 8-K |
Current report
Results of operations
|
May 6, 2026 | May 6, 2026 |
| 8-K |
Current report
Auditor change
|
Apr 21, 2026 | Apr 17, 2026 |
| 8-K |
Current report
Results of operations
|
Mar 4, 2026 | Mar 4, 2026 |
| 8-K |
Current report
Agreement ended
|
Feb 3, 2026 | Jan 30, 2026 |
| 8-K |
Current report
Other events
|
Jan 12, 2026 | Jan 12, 2026 |
| 8-K |
Current report
Officer or director change
|
Dec 22, 2025 | Dec 18, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Officer or director change
|
Oct 6, 2025 | Oct 6, 2025 |
| 8-K |
Current report
Officer or director change
|
Sep 2, 2025 | Sep 2, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 18, 2025 | Jun 12, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| 8-K |
Current report
Officer or director change
|
Apr 23, 2025 | Apr 22, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 20, 2025 | Mar 20, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 4, 2025 | Mar 4, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| 8-K |
Current report
Other events
|
Nov 5, 2024 | Nov 1, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2024 | Oct 29, 2024 |
| 8-K |
Current report
Change in control, Officer or director change
|
Oct 23, 2024 | Oct 23, 2024 |
| 8-K |
Current report
Listing notice
|
Sep 20, 2024 | Sep 19, 2024 |
| 8-K |
Current report
Officer or director change
|
Sep 12, 2024 | Sep 6, 2024 |
| 8-K |
Current report
Officer or director change
|
Aug 14, 2024 | Aug 12, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 6, 2024 | Jun 6, 2024 |
| 8-K |
Current report
Change to shareholder rights, Other events
|
May 14, 2024 | May 13, 2024 |
| 8-K |
Current report
Results of operations
|
May 9, 2024 | May 9, 2024 |
| 8-K |
Current report
Other events
|
Apr 1, 2024 | Apr 1, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 21, 2024 | Mar 21, 2024 |
| 8-K |
Current report
Other events
|
Jan 16, 2024 | Jan 16, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2023 | Nov 9, 2023 |
| 8-K |
Current report
Agreement ended
|
Oct 23, 2023 | Oct 21, 2023 |
| 8-K |
Current report
Agreement ended, Other events
|
Oct 3, 2023 | Oct 2, 2023 |
| 8-K |
Current report
Other events
|
Sep 21, 2023 | Sep 21, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2023 | Aug 10, 2023 |
| 8-K |
Current report
Other events
|
Jul 25, 2023 | Jul 24, 2023 |
| 8-K |
Current report
Officer or director change
|
Jun 15, 2023 | Jun 13, 2023 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Jun 9, 2023 | Jun 1, 2023 |
| 8-K |
Current report
Material agreement, Change in control
|
May 10, 2023 | May 9, 2023 |
| 8-K |
Current report
Results of operations
|
May 10, 2023 | May 10, 2023 |
| 8-K |
Current report
Officer or director change
|
Apr 27, 2023 | Apr 25, 2023 |
| 8-K |
Current report
Material agreement
|
Apr 19, 2023 | Apr 15, 2023 |
| 8-K |
Current report
Results of operations, Bylaw or fiscal year change
|
Mar 23, 2023 | Mar 21, 2023 |
| 8-K |
Current report
Officer or director change
|
Mar 9, 2023 | Mar 6, 2023 |
| 8-K |
Current report
Other events
|
Feb 7, 2023 | Feb 7, 2023 |
| 8-K |
Current report
Officer or director change
|
Jan 12, 2023 | Jan 7, 2023 |
| 8-K/A | Amended current report | Nov 16, 2022 | Sep 14, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2022 | Nov 10, 2022 |
| 8-K |
Current report
Other events
|
Oct 20, 2022 | Oct 19, 2022 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Sep 28, 2022 | Sep 27, 2022 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Listing notice, Unregistered share sale, Change to shareholder rights, Auditor change, Change in control, Officer or director change, Bylaw or fiscal year change, Regulation FD disclosure
|
Sep 16, 2022 | Sep 14, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 14, 2022 | Sep 14, 2022 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
Sep 14, 2022 | Sep 13, 2022 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Sep 12, 2022 | Sep 12, 2022 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Sep 9, 2022 | Sep 9, 2022 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure, Other events
|
Sep 7, 2022 | Sep 7, 2022 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
May 12, 2022 | May 11, 2022 |
| 8-K |
Current report
Other events
|
Apr 20, 2022 | Apr 20, 2022 |
| 8-K |
Current report
Other events
|
Mar 10, 2022 | Mar 4, 2022 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Officer or director change, Bylaw or fiscal year change, Other events
|
Mar 4, 2022 | Mar 1, 2022 |
Showing 65 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
- Miscellaneous Electrical Machinery, Equipment & Supplies (SIC 3690)
- Listed as
- AMPX (NYSE), AMPX-WT (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Fremont, CA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 1899287
- Former names
- Kensington Capital Acquisition Corp. IV (until Sep 14, 2022)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.