{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-001141","form_type":"8-K","ticker":"ASMB","cik":"0001426800","company_name":"ASSEMBLY BIOSCIENCES, INC.","filed_at":"2025-01-03T23:59:59+00:00","discovered_at":"2026-05-14T18:03:03.601443+00:00","generated_at":"2026-05-28T13:56:26.109094+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Assembly Biosciences extends sublease through Sep 2029; ROFR on additional space","bullets":["Sublease extended to September 30, 2029 for ~20,000 sq ft in South San Francisco.","Monthly base rent ranges from $64,945 (abated Jan 2025) to $74,537 through 2029.","Right of first refusal to sublease additional 6th-floor space from Arsenal Biosciences.","Sublessee may install improvements including walls, offices, and phone rooms at its cost.","Amendment conditioned on master landlord consent; either party may terminate if not obtained within 30 days."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-001141","json":"https://secwatch.observer/filing/0000950170-25-001141.json","markdown":"https://secwatch.observer/filing/0000950170-25-001141.md","text":"https://secwatch.observer/filing/0000950170-25-001141.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1426800/000095017025001141/0000950170-25-001141-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1426800/000095017025001141/asmb-20241230.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-28T13:56:26.109094+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"}