{"schema_version":"secwatch.filing_event.v1","accession":"0001447362-22-000050","form_type":"8-K","ticker":"CSTL","cik":"0001447362","company_name":"CASTLE BIOSCIENCES INC","filed_at":"2022-03-17T23:59:59+00:00","discovered_at":"2026-05-14T18:04:06.518030+00:00","generated_at":"2026-06-26T21:57:56.550888+00:00","sec_items":["1.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Castle Biosciences expands Phoenix office by 5,904 sq ft, extends lease through 2033","bullets":["Expanded premises include Suite 170, adding 5,904 rentable sq ft for total ~17,820 sq ft.","Lease term extended to 129 months following expansion completion; expiration approximately 2033.","Base rent starts at $21.00/sq ft/yr ($31,185/month) with annual $0.50/sq ft increases through ~2033.","Landlord provides $15.00/sq ft tenant improvement allowance ($88,560); Tenant pays any excess costs.","Parking rights increase to 65 total spaces, including 5 covered reserved spaces, at no additional charge."],"urls":{"canonical":"https://secwatch.observer/filing/0001447362-22-000050","json":"https://secwatch.observer/filing/0001447362-22-000050.json","markdown":"https://secwatch.observer/filing/0001447362-22-000050.md","text":"https://secwatch.observer/filing/0001447362-22-000050.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1447362/000144736222000050/0001447362-22-000050-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1447362/000144736222000050/cstl-20220311.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-26T21:57:56.550888+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"}