{"schema_version":"secwatch.filing_event.v1","accession":"0001899287-23-000021","form_type":"8-K","ticker":"AMPX","cik":"0001899287","company_name":"Amprius Technologies, Inc.","filed_at":"2023-03-23T23:59:59+00:00","discovered_at":"2026-05-14T18:03:47.407560+00:00","generated_at":"2026-06-17T19:31:43.915039+00:00","sec_items":["2.02","5.03","9.01"],"event_type":"earnings","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Amprius FY2022 rev $4.4M, net loss $17.3M; 500 Wh/kg batteries verified, plans Colorado gigafactory","bullets":["FY2022 revenue $4.4M (product $2.4M, development $1.8M); net loss $17.3M ($0.24 diluted EPS).","Cash $69.7M, no debt; shipments up 65% YoY; GAAP gross margin negative 123%.","Achieved 500 Wh/kg battery verification, 0-80% charge in <10 min, passed military nail penetration test.","Expanding Fremont to 2 MWh capacity by end 2023; selected Brighton, CO for up to 10 GWh facility.","Formed Amprius Lab (Fremont) and Amprius Fab (Brighton); COO Jon Bornstein named President of Lab."],"urls":{"canonical":"https://secwatch.observer/filing/0001899287-23-000021","json":"https://secwatch.observer/filing/0001899287-23-000021.json","markdown":"https://secwatch.observer/filing/0001899287-23-000021.md","text":"https://secwatch.observer/filing/0001899287-23-000021.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1899287/000189928723000021/0001899287-23-000021-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1899287/000189928723000021/ampx-20230321.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-17T19:31:43.915039+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"4e0fd7a702e2f7f61f15bf6ee9e466ecb5d845f2","claim":"Amprius Technologies, Inc. reported financial results for fourth fiscal quarter and full year ended December 31, 2022.","evidence_excerpt":"On March 23, 2023, Amprius Technologies, Inc. (the “Company”) announced its business and financial results for its fourth fiscal quarter and full year ended December 31, 2022.","evidence_source":"SEC 8-K Item 2.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1899287/000189928723000021/0001899287-23-000021-index.htm","confidence":1.0,"family_label":"Earnings Releases","details":[{"label":"Period","value":"fourth fiscal quarter and full year ended December 31, 2022"},{"label":"Result","value":"reported results"}],"fact_type":"earnings_release"},{"claim_id":"c708db0eacf0898a5c0c059a0978973649f5fc52","claim":"Amprius Technologies, Inc.: The board of directors approved and adopted amended and restated bylaws, addressing universal proxy rules, Delaware law changes, and technical updates (effective 2023-03-21).","evidence_excerpt":"On March 21, 2023, the board of directors of the Company approved and adopted amended and restated bylaws (the “Amended and Restated Bylaws”), which became effective immediately.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1899287/000189928723000021/0001899287-23-000021-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2023-03-21"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}