{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-138211","form_type":"8-K","ticker":"KPTI","cik":"0001503802","company_name":"Karyopharm Therapeutics Inc.","filed_at":"2024-05-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:18.711963+00:00","generated_at":"2026-06-02T00:45:14.182298+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Karyopharm closes $148M debt exchange for new 6% notes due 2029 and warrants, plus $100M credit facility","bullets":["Exchanged ~$148M of 3.00% convertible notes due 2025 for $111M of new 6.00% secured convertible notes due 2029.","Issued warrants to purchase up to ~46M shares of common stock as part of the exchange.","Entered into a $100M senior secured credit facility, with proceeds used partly to repay HCR facility and for general purposes.","The exchange extends debt maturity from 2025 to 2029, improving near-term liquidity but increasing interest cost and adding dilution potential.","New notes are secured and carry a 6% coupon versus the 3% on the exchanged notes."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-138211","json":"https://secwatch.observer/filing/0001193125-24-138211.json","markdown":"https://secwatch.observer/filing/0001193125-24-138211.md","text":"https://secwatch.observer/filing/0001193125-24-138211.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1503802/000119312524138211/0001193125-24-138211-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1503802/000119312524138211/d808759d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-02T00:45:14.182298+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"}