Amprius Technologies, Inc.
Amprius Technologies, Inc. (NYSE: AMPX) develops, manufactures and markets lithium-ion batteries for aviation, ground and marine mobility, using proprietary silicon-anode technology in place of conventional graphite anodes. Its batteries are designed for high energy and power density, fast charging and operation… From the company’s description.
Over the twelve months to Jun 30, 2026, Amprius Technologies, Inc. reported revenue of $109.23M, up 143.6% from a year earlier, and a net loss of $36.48M. Its operating margin was −37.7%, and operations used $52.87M in cash. In fiscal 2025, it reported revenue of $73.01M, up 202.1% from fiscal 2024, and a net loss of $44.02M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Amprius Technologies, Inc. does
In the company’s own words
Amprius Technologies, Inc. (NYSE: AMPX) develops, manufactures and markets lithium-ion batteries for aviation, ground and marine mobility, using proprietary silicon-anode technology in place of conventional graphite anodes. Its batteries are designed for high energy and power density, fast charging and operation across a wide range of temperatures. Customers primarily use them in unmanned aircraft systems, including drones and high-altitude pseudo satellites, and include aerospace, defense and drone companies and government organizations. Amprius sells SiCore batteries commercially and continues developing its SiMaxx and electric-vehicle-capable cells; most customers have transitioned to SiCore. The company’s cells are available in pouch, cylindrical and prismatic formats, with high-energy, high-power and balanced energy/power designs. It serves customers through global contract manufacturers and had access to annual production capacity exceeding 2.0 GWh as of December 31, 2025. More than 500 customers had tested or validated its batteries since inception, and the company shipped over 4.2 million cells through that date. It has produced batteries commercially since 2018 and began full commercial launch of SiCore in 2024. Its website is www.amprius.com.
Company details
- Sector
- Industrials
- Industry (SIC)
- Electronic Equipment
- Headquarters
- FREMONT, CA
- Fiscal year end
- December
- CIK
- 1899287
- SIC
- 3690
Financial performance, year by year
Fiscal 2022–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Amprius Technologies, Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Superinvestors in Amprius Technologies, Inc. · what they did last quarter
Share of each manager’s reported 13F portfolio. Change is in shares held, since the previous quarter.
Largest fund holders · Amprius Technologies, Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Fund ownership is a subset of institutional 13F ownership — the two describe overlapping populations and must not be added together.
Could not be determined for this company: bond issues.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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