{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-268684","form_type":"8-K","ticker":"WRB","cik":"0000011544","company_name":"BERKLEY W R CORP","filed_at":"2021-09-09T23:59:59+00:00","discovered_at":"2026-05-14T18:04:17.314630+00:00","generated_at":"2026-06-29T04:44:35.799237+00:00","sec_items":["1.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"W.R. Berkley issues $350M of 3.150% Senior Notes due 2061","bullets":["Issued $350M aggregate principal of 3.150% Senior Notes due 2061 under existing shelf registration.","Underwriting agreement with BofA Securities, Credit Suisse, J.P. Morgan, and Morgan Stanley.","Offering expected to close on September 15, 2021, subject to customary conditions.","Notes are senior unsecured obligations of the company."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-268684","json":"https://secwatch.observer/filing/0001193125-21-268684.json","markdown":"https://secwatch.observer/filing/0001193125-21-268684.md","text":"https://secwatch.observer/filing/0001193125-21-268684.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/11544/000119312521268684/0001193125-21-268684-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/11544/000119312521268684/d191848d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T04:44:35.799237+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"}