{"schema_version":"secwatch.filing_event.v1","accession":"0001888524-26-016512","form_type":"8-K","ticker":null,"cik":"0001698685","company_name":"BANK 2017-BNK4","filed_at":"2026-09-02T13:08:56+00:00","discovered_at":"2026-09-02T13:10:10.236788+00:00","generated_at":"2026-09-02T13:10:19.672314+00:00","sec_items":["6.02"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"C-IV AM becomes special servicer for Davenport Mortgage Loan after Greystone sale","bullets":["Greystone sold substantially all special servicing assets to C-IV AM on Sept 1, 2026; C-IV AM assumes duties.","C-IV AM rated MOR CS2 (Morningstar DBRS) and CSS2 (Fitch); on S&P Select Servicer list.","As of 6/30/26, Greystone's portfolio: 60 transactions, $20.7B UPB; $2.1B in active special servicing.","C-IV AM has resolved 6,017 assets totaling ~$60.7B since 2002; no material legal proceedings.","C-IV AM is wholly-owned by C-IV Capital Partners; key employees transferred from Greystone."],"urls":{"canonical":"https://secwatch.observer/filing/0001888524-26-016512","json":"https://secwatch.observer/filing/0001888524-26-016512.json","markdown":"https://secwatch.observer/filing/0001888524-26-016512.md","text":"https://secwatch.observer/filing/0001888524-26-016512.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1698685/000188852426016512/0001888524-26-016512-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1698685/000188852426016512/wcm17bk4_8k-09012026.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-09-02T13:10:19.672314+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"}