{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-114641","form_type":"8-K","ticker":"WM","cik":"0000823768","company_name":"WASTE MANAGEMENT INC","filed_at":"2025-11-20T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.275034+00:00","generated_at":"2026-05-16T18:17:37.063491+00:00","sec_items":["5.04","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Waste Management imposes blackout period on insider trading due to plan recordkeeper change","bullets":["Blackout period from Dec 24, 2025 (4:00 PM ET) to ~week of Jan 18, 2026 for Retirement Savings Plan participants.","Directors and executive officers prohibited from trading WM equity securities during blackout under Sarbanes-Oxley.","Plan recordkeeper change effective Jan 1, 2026; participants cannot change contributions, investments, or get loans/distributions.","Company will be in closed trading window per Insider Trading Policy throughout blackout duration."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-114641","json":"https://secwatch.observer/filing/0001104659-25-114641.json","markdown":"https://secwatch.observer/filing/0001104659-25-114641.md","text":"https://secwatch.observer/filing/0001104659-25-114641.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/823768/000110465925114641/0001104659-25-114641-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/823768/000110465925114641/tm2531866d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T18:17:37.063491+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"}