{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-265542","form_type":"8-K","ticker":"COST","cik":"0000909832","company_name":"COSTCO WHOLESALE CORP /NEW","filed_at":"2021-09-03T23:59:59+00:00","discovered_at":"2026-05-14T18:04:21.219172+00:00","generated_at":"2026-06-29T05:57:34.737287+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Costco EVP Joseph Portera to retire Jan 2022; Yoram Rubananko promoted to EVP","bullets":["Joseph Portera, EVP Eastern & Canadian Divisions, retiring effective Jan 30, 2022 after 30+ years.","Yoram Rubananko promoted from SVP/GM Southeast Region to EVP Northeast and Southeast Regions.","Rubananko's promotion effective Sep 27, 2021; he will report to CEO Craig Jelinek.","Rubananko has held various operational roles at Costco since 1988."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-265542","json":"https://secwatch.observer/filing/0001193125-21-265542.json","markdown":"https://secwatch.observer/filing/0001193125-21-265542.md","text":"https://secwatch.observer/filing/0001193125-21-265542.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/909832/000119312521265542/0001193125-21-265542-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/909832/000119312521265542/d197612d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T05:57:34.737287+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":"985c5fb52b","claim":"Joseph Portera departed as Executive Vice President, Eastern & Canadian Divisions at COSTCO WHOLESALE CORP /NEW.","evidence_excerpt":"Joseph Portera, Executive Vice President, Eastern & Canadian Divisions, is retiring from the Company.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/909832/000119312521265542/0001193125-21-265542-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"retiring"},{"label":"Role","value":"Executive Vice President, Eastern & Canadian Divisions"}],"fact_type":"executive_change"},{"claim_id":"b71144b1fd","claim":"Yoram Rubananko was appointed as Executive Vice President, Northeast and Southeast Regions at COSTCO WHOLESALE CORP /NEW.","evidence_excerpt":"Yoram Rubananko, currently Senior Vice President and General Manager, Southeast Region, has been promoted to Executive Vice President, Northeast and Southeast Regions, effective September 27, 2021.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/909832/000119312521265542/0001193125-21-265542-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"promoted"},{"label":"Role","value":"Executive Vice President, Northeast and Southeast Regions"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}