{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-017223","form_type":"8-K","ticker":"KPTI","cik":"0001503802","company_name":"Karyopharm Therapeutics Inc.","filed_at":"2025-01-30T23:59:59+00:00","discovered_at":"2026-05-14T18:03:03.819181+00:00","generated_at":"2026-05-27T05:15:42.160246+00:00","sec_items":["5.07"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Karyopharm shareholders approve reverse stock split and share increase","bullets":["Approved increase in authorized capital stock to 805M shares (common to 800M).","Approved reverse stock split at ratio 1:5 to 1:15; board to decide timing and exact ratio by Feb 28, 2025.","Reverse split: 74.8M votes for, 20.0M against; share increase: 71.6M for, 23.4M against."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-017223","json":"https://secwatch.observer/filing/0001193125-25-017223.json","markdown":"https://secwatch.observer/filing/0001193125-25-017223.md","text":"https://secwatch.observer/filing/0001193125-25-017223.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1503802/000119312525017223/0001193125-25-017223-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1503802/000119312525017223/d893335d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T05:15:42.160246+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"}