AMPX insider trading
NYSE IndustrialsAmprius Technologies, Inc.: insider trade history from SEC Form 4 filings.
About Amprius Technologies, Inc.
Amprius Technologies, Inc. develops, manufactures, and markets lithium-ion batteries for mobility applications. The company offers 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.
Company website: amprius.com
AMPX insider activity at a glance
FilingIQ tracks 229 insider transactions for AMPX in filings since Sep 16, 2022. The most recent transaction is dated Aug 25, 2026.
Across the full history, 0 open-market purchases
and 122 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
The average FilingIQ composite score on AMPX insider trades is 57.5/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Latest AMPX Form 4 filings
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Frequently asked
- How many insider trades does FilingIQ track for AMPX?
- FilingIQ tracks 229 Form 4 insider transactions for AMPX (Amprius Technologies, Inc.), covering filings from Sep 16, 2022 onwards. 9 of those are dated within the last 90 days.
- Are AMPX insiders net buyers or net sellers?
- Across the full Form 4 history for AMPX, 0 transactions (0%) were open-market purchases and 122 (53%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does AMPX insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ normalises insider identity across reporting variations and scores discretionary open-market purchases and sales on its multi-factor composite model.
- What sector is AMPX in?
- Amprius Technologies, Inc. (AMPX) is classified in the Industrials sector, specifically Electrical Equipment & Parts, with a current market capitalisation of $1.41B.
Methodology & sources
Every AMPX insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.