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12.27
+0.18 (1.53%)
Market open: Aug 12, 2026, 2:04 PM EDT
12.08
0.00 (0.00%)
Previous after-hours: Aug 11, 2026, 7:59 PM EDT
Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications. The company provides 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.
| Name | Position |
|---|---|
| Dr. Constantin Ionel Stefan | Chief Technology Officer |
| Dr. Kang Sun Ph.D. | Executive Advisor & Director |
| Mr. Ricardo C. Rodriguez | CFO & Corporate Secretary |
| Mr. Ronnie Tao | Chief Business Officer |
| Mr. Scott Zafiropoulo | Senior Director of Marketing |
| Mr. Thomas Michael Stepien | CEO, President & Director |
| Ms. Siyu Jiang | Vice President of Legal Affairs |
| Date | Type | Document |
|---|---|---|
| 2026-08-06 | 10-Q | ampx-20260630.htm |
| 2026-08-04 | 8-K | ampx-20260804.htm |
| 2026-06-17 | 8-K | ampx-20260611.htm |
| 2026-05-19 | 8-K/A | ampx-20260506.htm |
| 2026-05-08 | 8-K | ampx-20260506.htm |
| 2026-05-07 | 8-K | ampx-20260506.htm |
| 2026-05-07 | 10-Q | ampx-20260331.htm |
| 2026-05-06 | 8-K | ampx-20260506.htm |
| 2026-04-29 | DEFA14A | ampriustechnologies-defa14.htm |
| 2026-04-29 | DEF 14A | ampx-20260428.htm |