AMPX Amprius Technologies, Inc.companySEC Filings & Insider Trading Activity 2026
Latest Amprius Technologies, Inc. (AMPX) SEC EDGAR filings in 2026 — including the most recent 10-K annual report filed on March 6, 2026, a 10-Q quarterly report filed on November 6, 2025, an 8-K current report filed on April 21, 2026. SignalX aggregates every new 10-K annual report, 10-Q quarterly report, 8-K current report, and Form 4 insider transaction for Amprius Technologies, Inc. (AMPX) (SEC CIK 1899287), with AI-powered section-by-section summaries updated daily.
Latest 2026 SEC Filing Dates
AI 10-K Annual Report AnalysisLatest 10-K (2025-12-31)
Business Overview
- • Core business: develops and markets high-performance lithium-ion silicon anode batteries focused on aviation, ground, and marine electric mobility
- • New product: full commercial launch of SiCore silicon anode batteries in January 2024 with annual production capacity >2.0 GWh via global contract manufacturing
Risk Factors
- • Regulatory risk: NDAA compliance required for battery components under Defense Innovation Unit program; sourcing compliant suppliers challenging, risking delays and program standing
- • Geopolitical risk: Reliance on suppliers in China exposes operations to U.S.-China trade conflicts and tariffs, increasing costs and supply chain disruption risks
Management Discussion & Analysis
- • Revenue $73.0M, up 202% YoY from $24.2M driven by $48.1M increase in SiCore battery sales and $0.5M in government grants
- • Gross margin 11% vs (76)% loss YoY, driven by higher sales volume; operating loss stable at $(46.6)M vs $(46.3)M
AI 10-Q Quarterly Report AnalysisLatest 10-Q (2025-09-30)
Risk Factors
- • New risk: Uncertainty about mutually agreeable commercial terms with Berzelius under Exclusive Supply Agreement affecting SiCore battery materials supply
- • Updated manufacturing risk: Delay risk and cost overruns for new GWh-scale Brighton, Colorado facility highlighted due to timing of funding and market demand fluctuations
AI 8-K Current Report AnalysisRecent 8-K Filings
Item 2.02: Results of Operations and Financial Condition
- • Q1 2025 earnings press release issued; full financial details contained in the exhibit (not summarized in item text)
- • Investors should review the attached press release exhibit for revenue, margins, and guidance figures
Annual Reports Archive10-K
AI-powered analysis of Amprius Technologies, Inc. (AMPX) 10-K annual reports filed with SEC EDGAR.
Quarterly Reports Archive10-Q
AI-powered analysis of Amprius Technologies, Inc. (AMPX) 10-Q quarterly reports filed with SEC EDGAR.
Recent 8-K FilingsCurrent Reports
AI-powered analysis of Amprius Technologies, Inc. (AMPX) 8-K current reports disclosing material events.
Financial SummaryXBRL
| FY2022 | FY2023 | FY2024 | FY2025 | |
|---|---|---|---|---|
| Profitability | ||||
| Revenue | $4.4M | $8.8M | $23.6M | $71.9M |
| Gross Profit | — | — | — | $8.3M |
| Operating Income | — | -$38.7M | -$46.3M | -$46.6M |
| Net Income | -$17.3M | -$36.8M | -$44.7M | -$44.0M |
| Gross Margin | — | — | — | 11.5% |
| Op. Margin | — | -440.3% | -196.3% | -64.9% |
| Net Margin | -393.1% | -418.3% | -189.5% | -61.2% |
| Balance Sheet | ||||
| Total Assets | $83.2M | $107.7M | $121.1M | $156.9M |
| Equity | $73.0M | $59.8M | $69.5M | $103.8M |
| ROE | -23.7% | -61.5% | -64.3% | -42.4% |
Source: XBRL financial data from Amprius Technologies, Inc. (AMPX) 10-K filings on SEC EDGAR. All figures in USD. Key metrics include revenue, net income, gross profit, gross profit margin, operating income, EPS (diluted), total assets, stockholders' equity, return on equity (ROE), operating cash flow, and capital expenditure.
Latest 2026 SEC Filings — 10-K, 10-Q, 8-K & Form 4
| Form | Filing Date | Period | Analysis | SEC |
|---|---|---|---|---|
8-K | Apr 21, 2026 | — | — | — |
10-K | Mar 6, 2026 | Dec 31, 2025 | Analysis | |
8-K | Mar 4, 2026 | — | Analysis | — |
8-K | Feb 3, 2026 | — | — | |
8-K | Jan 12, 2026 | — | — | |
8-K | Dec 22, 2025 | — | — | |
10-Q | Nov 6, 2025 | Sep 30, 2025 | Analysis | |
10-Q | Aug 7, 2025 | Jun 30, 2025 | — | |
10-Q | May 8, 2025 | Mar 31, 2025 | — | |
10-K | Mar 20, 2025 | Dec 31, 2024 | — | |
10-Q | Nov 7, 2024 | Sep 30, 2024 | — | |
10-Q | Aug 9, 2024 | Jun 30, 2024 | — | |
10-Q | May 9, 2024 | Mar 31, 2024 | — | |
10-K | Mar 28, 2024 | Dec 31, 2023 | — | |
10-Q | Nov 13, 2023 | Sep 30, 2023 | — | |
10-Q | Aug 11, 2023 | Jun 30, 2023 | — | |
10-Q | May 11, 2023 | Mar 31, 2023 | — | |
10-K | Mar 30, 2023 | Dec 31, 2022 | — | |
10-Q | Nov 14, 2022 | Sep 30, 2022 | — | |
10-Q | Aug 12, 2022 | Jun 30, 2022 | — | |
10-Q | May 17, 2022 | Mar 31, 2022 | — |
Frequently Asked Questions
What are the latest AMPX SEC filings in 2026?
Amprius Technologies, Inc. (AMPX) has filed a 10-K annual report on March 6, 2026, a 10-Q quarterly report on November 6, 2025, an 8-K current report on April 21, 2026 with the SEC. SignalX tracks every new SEC EDGAR filing daily, including 10-K, 10-Q, 8-K, and Form 4 insider transactions, with AI-powered summaries of key sections.
When did AMPX file its most recent 10-K annual report?
Amprius Technologies, Inc. (AMPX) filed its most recent 10-K annual report on March 6, 2026. The 10-K includes audited financial statements, business overview, risk factors, and management discussion, all available on SignalX with AI-generated summaries and XBRL financial data.
How do I view AMPX 10-Q quarterly reports?
Amprius Technologies, Inc. (AMPX)'s most recent 10-Q quarterly report was filed on November 6, 2025. SignalX displays every AMPX 10-Q with AI-generated summaries of the MD&A (Management Discussion & Analysis) and Risk Factors sections, plus links to the original SEC EDGAR document.
What 8-K current reports has AMPX filed recently?
Amprius Technologies, Inc. (AMPX)'s most recent 8-K was filed on April 21, 2026. 8-K filings disclose material corporate events such as earnings releases, executive changes, mergers, and other significant developments. SignalX surfaces each 8-K with item-level summaries so you can quickly see what happened.
Where can I find AMPX insider trading activity (Form 4)?
SignalX aggregates every AMPX Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.
How often does AMPX file with the SEC?
Amprius Technologies, Inc. (AMPX) files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new AMPX filing with AI-powered analysis.
What is the difference between 10-K, 10-Q, and 8-K SEC filings?
A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs — such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for Amprius Technologies, Inc. (AMPX).
What is AMPX's SEC CIK number?
Amprius Technologies, Inc. (AMPX)'s SEC CIK (Central Index Key) number is 1899287. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1899287 to look up all AMPX filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.
Where can I find AMPX return on equity (ROE) and financial data?
SignalX extracts XBRL financial data from Amprius Technologies, Inc. (AMPX) 10-K annual filings, including revenue, net income, gross profit, operating income, EPS, total assets, stockholders' equity, and operating cash flow. Return on equity (ROE) can be derived from net income divided by stockholders' equity. Multi-year financial trends are displayed in the Financial Summary table above.
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