Amprius Technologies $AMPX Read from its own SEC filings · nothing written, nothing inferred
🫧 Edgar looked up AMPRIUS TECHNOLOGIES, INC. ($AMPX). Last filing: 8-K (1.01 Entry into a Material Definitive Agreement), 2026-09-28. 13 event filings (8-K) in the past twelve months. Auditor change (8-K Item 4.01) filed 2026-04-21.
🔖 Exposure: revenue $73.0M (FY2025). Experience: revenue up 202.1% on the year, up 126.5% a year over 4 years; operating margin -63.9%, up from -191.4%. Soundness: equity 66.2% of assets, return on equity -42.4%. Credibility: four or more audited years, reasonable weight. Range: 80% of past cases like this landed between $117.3M and $326.6M next year (method v4.1: its own 4-year record of growth weighed at 50% against $50M–100M filers; on a year the method never saw, 83.4% landed inside). In a shock year the stress range is $121.9M to $315.1M. A statistical range, not company guidance. Against peers (15 filers, $50M+ revenue, miscellaneous electrical machinery, equipment & supplies): operating margin -63.9% against a -7.6% median; growth 202.1% against 6.9%.
Speed and cash · fiscal 2025
Both views must agree for a label · a description, not advice.
| Cash flow (op · inv · fin · free) | −$31M · −$4M · $71M · −$36M |
| Investment book (cash · short · long) | $90M · — · — · current ratio 7.08 |
| Revenue swing · equity of assets | 28.5% · 66.2% |
Amprius Technologies is growing faster than its size class, with revenue that swings more. Its own audited SEC figures.
The figures, as filed
| Fiscal year end | 2025-12-31 |
| Revenue | $73M |
| Revenue, on the year | 202.1% |
| Revenue, a year over the record | 126.5% |
| Operating margin | −63.9% |
| Operating margin, prior year | −191.4% |
| Net margin | −60.3% |
| Research and development | $9M · 12.9% of revenue |
| Total debt | — |
| Equity of assets | 66.2% |
| Return on equity | −42.4% |
| Payout of profit | — |
| Dividend per share | — |
| Earnings per share | $-0.35 |
| Book value per share | $0.83 |
| Revenue per share | $0.59 |
| Shares outstanding | 124,639,991 |
| Audited years read | 5 |
Peers: the median of 15 filers with $50M+ revenue in miscellaneous electrical machinery, equipment & supplies.
Health HarborAmprius Technologies sails as: Old boat
Health watch · 12 monthsAuditor changeDirector or officer change ×2
Sailing speed follows growth: 154.9% a year crosses the harbor in 30 seconds.
🌊 Visit the Bay →- filed auditor change in the last 12 months
- operating cash flow was negative
- revenue is hard to predict: its 80% range is ±47%
Boat condition = number of warning signs: a serious warning filing in 12 months; liabilities over assets; slow and jumpy; negative operating cash; an 80% revenue range of ±25% or wider. A picture of the signs, not a rating and not investment advice.
- 8-K · 2026-09-28 · 1.01 Entry into a Material Definitive Agreement; 9.01 Financial Statements and Exhibits
- 8-K · 2026-08-13 · 1.01 Entry into a Material Definitive Agreement; 2.03 Creation of a Direct Financial Obligation; 9.01 Financial Statements and Exhibits
- 10-Q · 2026-08-06
- 8-K · 2026-08-04 · 2.02 Results of Operations and Financial Condition; 9.01 Financial Statements and Exhibits
- 8-K · 2026-06-17 · 5.07 Submission of Matters to a Vote of Security Holders
- 8-K · 2026-05-07 · 1.01 Entry into a Material Definitive Agreement; 3.02 Unregistered Sales of Equity Securities; 9.01 Financial Statements and Exhibits
Figures are as filed in audited 10-K reports and can move with restatements, acquisitions, disposals or a change in fiscal year. A range set from how past company-years turned out is not a promise about the next one, and says nothing about the share price. Reporting, not investment advice. No price targets and no trading recommendations. Figures from the SEC’s own data · every filing · this page as JSON · ask about another company