{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-057818","form_type":"8-K","ticker":"DUOL","cik":"0001562088","company_name":"Duolingo, Inc.","filed_at":"2026-08-19T01:11:54+00:00","discovered_at":"2026-08-19T10:05:00.682607+00:00","generated_at":"2026-08-19T10:05:25.836626+00:00","sec_items":["7.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Duolingo inadvertently shows 27.4% DAU growth estimate for Aug 17, 2026","bullets":["On Aug 18, 2026, investor meeting screen displayed estimated DAU growth of 27.4% YoY for Aug 17, 2026.","Similar estimated growth rates for prior days in August were also shown on the screen.","Company has not completed review/validation; data not indicative of Q3 2026 results.","No updated guidance provided; Q2 2026 guidance from Aug 5, 2026 remains in effect."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-057818","json":"https://secwatch.observer/filing/0001628280-26-057818.json","markdown":"https://secwatch.observer/filing/0001628280-26-057818.md","text":"https://secwatch.observer/filing/0001628280-26-057818.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026057818/0001628280-26-057818-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1562088/000162828026057818/duol-20260818.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-08-19T10:05:25.836626+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}