AMPX Stock: Price, Earnings History and SEC Filings
Amprius Technologies, Inc. (AMPX) last traded at $8.59, down 6.02% on the latest session and down 11.3% over the past month. In its most recent reported quarter (Jun 2026) earnings per share were $-0.03 against an analyst estimate of $-0.03, a beat of 0.0%.
Price data from Yahoo Finance, as of Oct 30, 2026. May be delayed.
AMPX earnings history
| Quarter | Reported | EPS | Estimate | Surprise |
|---|---|---|---|---|
| Jun 2026 | Aug 4, 2026 | $-0.03 | $-0.03 | +0.00% |
| Mar 2026 | May 6, 2026 | $-0.04 | $-0.02 | -100.00% |
| Dec 2025 | Mar 4, 2026 | $-0.01 | $-0.04 | +75.00% |
| Sep 2025 | Nov 6, 2025 | $-0.03 | $-0.06 | +50.00% |
AMPX beat the analyst EPS estimate in 2 of its last 4 reported quarters. Source: Nasdaq.
How AMPX reacts to earnings
Across its last 8 earnings releases, AMPX moved 14.3% on average the next session, in either direction. It rose after 5 of 8 reports.
| Report date | Released | Next-session move |
|---|---|---|
| 2026-08-04 | After close | +8.42% |
| 2026-05-06 | After close | -27.40% |
| 2026-03-04 | After close | +18.65% |
| 2025-11-06 | After close | +13.06% |
| 2025-08-07 | After close | +4.40% |
| 2025-05-08 | After close | -0.80% |
| 2025-03-20 | After close | +34.63% |
| 2025-03-04 | After close | -6.76% |
Based on the dates of earnings-release 8-K filings (SEC EDGAR) and daily closing prices (Yahoo Finance). Past reactions do not predict future ones.
Latest SEC filings for AMPX
- 8-K · Sep 28, 2026Material agreement, Financial statements and exhibits
- 8-K · Aug 13, 2026Material agreement, New financial obligation, Financial statements and exhibits
- 10-Q · Aug 6, 2026
- 8-K · Aug 4, 2026Results of operations, Financial statements and exhibits
- 8-K · Jun 17, 2026Shareholder vote
- 8-K · May 7, 2026Material agreement, Unregistered share sale, Financial statements and exhibits
- 10-Q · May 7, 2026
- 8-K · May 6, 2026Results of operations, Financial statements and exhibits
- DEF 14A · Apr 29, 2026
- 8-K · Apr 21, 2026
Insider filing activity
AMPX insiders filed 3 Form 4 reports in the last 90 days. A Form 4 is how directors and executives disclose purchases, sales and grants of company stock. See the individual filings on SEC EDGAR. Many Form 4 filings are routine, such as scheduled sales or option exercises, so check each filing before drawing a conclusion.
Source: SEC EDGAR.
AMPX news
- Amprius Technologies (AMPX) Stock May Look Stretched Following Drone Battery PushOct 28, 2026 · finance.yahoo.com
- Amprius CEO Tom Stepien at AUSA ‘It’s Going to Be the Decade of the Drone’Oct 26, 2026 · finance.yahoo.com
- AUSA: Amprius Technologies CEO Tom StepienOct 22, 2026 · finance.yahoo.com
- Amprius Technologies Announces Date for Third Quarter 2026 Results and Business UpdatesOct 21, 2026 · finance.yahoo.com
- Amprius Technologies' Next Big Rally Could Be Taking ShapeOct 20, 2026 · marketbeat.com
About Amprius Technologies, Inc.
Amprius Technologies, Inc. (AMPX) is a US-listed public company on NYSE. The SEC classifies its business as Miscellaneous Electrical Machinery Equipment & Supplies. It is incorporated in DE. Its fiscal year ends in December.