{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-21-015040","form_type":"8-K","ticker":"DUOL","cik":"0001562088","company_name":"Duolingo, Inc.","filed_at":"2021-07-30T23:59:59+00:00","discovered_at":"2026-05-14T18:04:18.584286+00:00","generated_at":"2026-06-30T00:22:56.432291+00:00","sec_items":["5.03","8.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Duolingo completes IPO on July 30, 2021; gross proceeds of $455.5M from 5.87M shares at $102/share","bullets":["Offered 5,872,029 shares of Class A common stock at $102.00 per share, including full underwriter option exercise.","Company sold 4,465,916 shares for gross proceeds of $455.5M; selling stockholders sold 1,406,113 shares with no proceeds to Duolingo.","Amended and restated certificate of incorporation and bylaws became effective upon IPO closing on July 30, 2021.","IPO detailed in final prospectus dated July 27, 2021; Class A common stock began trading on Nasdaq under ticker DUOL."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-21-015040","json":"https://secwatch.observer/filing/0001628280-21-015040.json","markdown":"https://secwatch.observer/filing/0001628280-21-015040.md","text":"https://secwatch.observer/filing/0001628280-21-015040.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1562088/000162828021015040/0001628280-21-015040-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1562088/000162828021015040/duolingo-8xk.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-30T00:22:56.432291+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"}