{"schema_version":"secwatch.filing_event.v1","accession":"0001562088-23-000254","form_type":"8-K","ticker":"DUOL","cik":"0001562088","company_name":"Duolingo, Inc.","filed_at":"2023-12-19T23:59:59+00:00","discovered_at":"2026-05-14T18:03:29.530399+00:00","generated_at":"2026-06-07T10:32:52.642552+00:00","sec_items":["1.01","2.03"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Duolingo sub-subleases 85,666 sq ft NYC office from Spotify; term through 2034","bullets":["Sub-sublease from Spotify USA Inc. for 85,666 sq ft at 4 World Trade Center; term until April 2034 (~10 years).","Initial base rent $62/sq ft/yr ($442,608/month) triple net; increasing to $67/sq ft/yr in year 6.","Rent payments begin 20 months after commencement; security deposit replaced by $2.66M letter of credit.","Sub-lease effective Jan 1, 2024, subject to landlord consent; CFO Matthew Skaruppa signed for Duolingo."],"urls":{"canonical":"https://secwatch.observer/filing/0001562088-23-000254","json":"https://secwatch.observer/filing/0001562088-23-000254.json","markdown":"https://secwatch.observer/filing/0001562088-23-000254.md","text":"https://secwatch.observer/filing/0001562088-23-000254.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1562088/000156208823000254/0001562088-23-000254-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1562088/000156208823000254/duol-20231218.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T10:32:52.642552+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":"71c2b5cdd48a3645b85c6ad0b1047df526e8e4aa","claim":"Duolingo, Inc. entered into Agreement of Sub-Sublease with Spotify USA Inc. valued at initial base rent is $62 per rentable square foot per annum (i.e., $442,608 per month) (effective 2023-12-18).","evidence_excerpt":"On December 18, 2023, Duolingo, Inc. (the “Company”), as sub-subtenant, entered into an Agreement of Sub-Sublease, dated December 18, 2023 (the “Sub-Sublease”), with Spotify USA Inc., as Sub-Sublandlord (the “Sub-Sublandlord”) for 85,666 square feet of office space in the building located at 4 World Trade Center, 150 Greenwich Street, New York, New York 10007 for use as additional office space.","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1562088/000156208823000254/0001562088-23-000254-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"lease"},{"label":"Counterparty","value":"Spotify USA Inc."},{"label":"Value","value":"initial base rent is $62 per rentable square foot per annum (i.e., $442,608 per month)"},{"label":"Effective","value":"2023-12-18"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}