{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-201353","form_type":"8-K","ticker":"COGT","cik":"0001622229","company_name":"Cogent Biosciences, Inc.","filed_at":"2025-09-11T23:59:59+00:00","discovered_at":"2026-05-14T18:02:44.505418+00:00","generated_at":"2026-05-17T06:53:02.539461+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Cogent Biosciences signs 7yr10mo lease for new Waltham HQ at $32/sq ft","bullets":["Leases 31,518 sq ft at 180 Third Avenue, Waltham, MA as new corporate headquarters, replacing existing HQ.","Term of 7 years 10 months starting expected May 2026; initial rent $32/sq ft with $1/sq ft annual increases.","Rent abatement for first 5 months; security deposit of ~$336,000 via letter of credit.","One option to extend lease for an additional 5 years.","Landlord performing turnkey buildout; no material tenant improvement costs for Cogent."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-201353","json":"https://secwatch.observer/filing/0001193125-25-201353.json","markdown":"https://secwatch.observer/filing/0001193125-25-201353.md","text":"https://secwatch.observer/filing/0001193125-25-201353.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1622229/000119312525201353/0001193125-25-201353-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1622229/000119312525201353/d947118d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T06:53:02.539461+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":"6f5aafd6976542888d5a7b850b16399cac5d9644","claim":"Cogent Biosciences, Inc. incurred lease obligation with BP THIRD AVENUE LLC maturing seven (7) years and ten (10) months from the Commencement Date.","evidence_excerpt":"On September 5, 2025, Cogent Biosciences, Inc. (“Cogent”) and BP THIRD AVENUE LLC, an affiliate of Boston Properties (the “Landlord”), entered into a lease agreement (the “Lease”)","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1622229/000119312525201353/0001193125-25-201353-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"lease obligation"},{"label":"Counterparty","value":"BP THIRD AVENUE LLC"},{"label":"Maturity","value":"seven (7) years and ten (10) months from the Commencement Date"},{"label":"Event","value":"incurrence"}],"fact_type":"debt_financing"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}