{"schema_version":"secwatch.filing_event.v1","accession":"0001503274-25-000056","form_type":"8-K","ticker":"QTRX","cik":"0001503274","company_name":"Quanterix Corp","filed_at":"2025-05-14T23:59:59+00:00","discovered_at":"2026-05-14T18:02:48.512784+00:00","generated_at":"2026-05-21T08:29:19.991405+00:00","sec_items":["4.01","9.01"],"event_type":"other_material","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Quanterix dismisses EY, hires KPMG as auditor; cites material weaknesses and restatement","bullets":["EY dismissed effective after Q1 2025 10-Q filing; Audit Committee selected KPMG for FY 2025 after RFP.","EY reports on internal controls for 2023 and 2024 contained adverse opinions due to material weaknesses.","Material weaknesses cited: inventory valuation (including labor/overhead capitalization) and Accelerator Laboratory revenue controls.","Company restated financials for periods from Q1 2022 through Q2 2024 due to inventory valuation error.","No disagreements with EY on accounting principles; new auditor KPMG has had no pre-engagement consultations."],"urls":{"canonical":"https://secwatch.observer/filing/0001503274-25-000056","json":"https://secwatch.observer/filing/0001503274-25-000056.json","markdown":"https://secwatch.observer/filing/0001503274-25-000056.md","text":"https://secwatch.observer/filing/0001503274-25-000056.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1503274/000150327425000056/0001503274-25-000056-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1503274/000150327425000056/qtrx-20250509.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-21T08:29:19.991405+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":"8afebcbc0e93b116f16870655bce4fb09cb17119","claim":"Quanterix Corp dismissed Ernst and Young LLP as its auditor.","evidence_excerpt":"On May 9, 2025, Quanterix Corporation (the “Company”) dismissed Ernst and Young LLP (“EY”) as its independent registered public accounting firm, to be effective following the filing of the Company's quarterly report on Form 10-Q for the quarter ended March 31, 2025.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1503274/000150327425000056/0001503274-25-000056-index.htm","confidence":0.98,"family_label":"Auditor Changes","details":[{"label":"Action","value":"dismissal"},{"label":"Auditor","value":"Ernst and Young LLP"},{"label":"Successor","value":"KPMG LLP"}],"fact_type":"auditor_change"},{"claim_id":"f12e91ed5cdafef0121b7781361ca59955b44737","claim":"Quanterix Corp engaged KPMG LLP as its auditor.","evidence_excerpt":"On May 9, 2025, the Audit Committee approved the appointment of KPMG LLP (“KPMG”) as the Company’s new independent registered public accounting firm for the fiscal year ending December 31, 2025.","evidence_source":"SEC 8-K Item 4.01/4.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1503274/000150327425000056/0001503274-25-000056-index.htm","confidence":0.98,"family_label":"Auditor Changes","details":[{"label":"Action","value":"engagement"},{"label":"Auditor","value":"KPMG LLP"}],"fact_type":"auditor_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}