Amprius Technologies, Inc. (AMPX)
NYSE: AMPX · Real-Time Price · USD
12.18
-0.04 (-0.33%)
At close: Dec 5, 2025, 4:00 PM EST
12.21
+0.03 (0.25%)
After-hours: Dec 5, 2025, 7:53 PM EST
Company Description
Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications.
The company offers silicon anode lithium-ion batteries under the SiCore and SiMaxx product platforms.
Its batteries are primarily used for existing and emerging aviation applications, including unmanned aerial systems, such as drones and high-altitude pseudo satellites.
The company was founded in 2008 and is headquartered in Fremont, California.
Amprius Technologies, Inc.
| Country | United States |
| Founded | 2008 |
| Industry | Electrical Equipment & Parts |
| Sector | Industrials |
| Employees | 99 |
| CEO | Kang Sun |
Contact Details
Address: 1180 Page Avenue Fremont, California 94538 United States | |
| Phone | 800 425 8803 |
| Website | amprius.com |
Stock Details
| Ticker Symbol | AMPX |
| Exchange | NYSE |
| Stock Type | Common Stock |
| Fiscal Year | January - December |
| Reporting Currency | USD |
| CIK Code | 0001899287 |
| CUSIP Number | 03214Q108 |
| ISIN Number | US03214Q1085 |
| Employer ID | 98-1591811 |
| SIC Code | 3690 |
Key Executives
| Name | Position |
|---|---|
| Dr. Kang Sun Ph.D. | Chief Executive Officer and Director |
| Thomas Michael Stepien | President and Director |
| Ricardo C. Rodriguez | Chief Financial Officer |
| Dr. Constantin Ionel Stefan | Chief Technology Officer |
| Siyu Jiang | Vice President of Legal Affairs |
| Scott Zafiropoulo | Senior Director of Marketing |
| Ronnie Tao | Vice President of Sales |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Nov 25, 2025 | 144 | Filing |
| Nov 25, 2025 | 144 | Filing |
| Nov 17, 2025 | 144 | Filing |
| Nov 6, 2025 | 10-Q | Quarterly Report |
| Nov 6, 2025 | 8-K | Current Report |
| Oct 30, 2025 | SCHEDULE 13G | Filing |
| Oct 17, 2025 | SCHEDULE 13G | Filing |
| Oct 6, 2025 | 8-K | Current Report |
| Sep 2, 2025 | 8-K | Current Report |
| Aug 25, 2025 | 144 | Filing |