{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-034184","form_type":"8-K","ticker":null,"cik":"0001845459","company_name":"NKGen Biotech, Inc.","filed_at":"2025-04-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.110920+00:00","generated_at":"2026-05-23T09:30:16.881304+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"NKGen amends East West Bank loan: maturity to Jan 2027, rate 10%, $3.99M principal","bullets":["Maturity extended from Apr 15, 2025 to Jan 15, 2027; interest rate fixed at 10% per annum (from variable).","Principal amount reduced to $3,991,127.50; payments: $1M due Jun 1, 2025; $1M Jul 15; $500K Oct 15; then $500K quarterly.","$250,000 reserve account required for interest payments; default rate increases by 5 percentage points (max legal rate).","Lender agrees to release deed of trust on real property collateral upon full repayment or pledge of cash collateral."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-034184","json":"https://secwatch.observer/filing/0001213900-25-034184.json","markdown":"https://secwatch.observer/filing/0001213900-25-034184.md","text":"https://secwatch.observer/filing/0001213900-25-034184.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1845459/000121390025034184/0001213900-25-034184-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1845459/000121390025034184/ea0239064-8k_nkgen.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T09:30:16.881304+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":"0a4315a049742c59378f67aed3fac2f48e6c33e7","claim":"NKGen Biotech, Inc. amended convertible notes of $3,991,127.50 with East West Bank at fixed rate of 10% per annum maturing January 15, 2027.","evidence_excerpt":"of up to $5 million. As of April 14, 2025, the principal amount of the Note was Three Million Nine Hundred Ninety-one Thousand One Hundred Twenty-seven and 50/100 Dollars ($3,991,127.50). On April 21, 2025, the Borrowers entered into an amendment to the Loan Agreement (the “ Loan Agreement Amendment ”), retroactively effective as of April 14, 2025, to (i) extend","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1845459/000121390025034184/0001213900-25-034184-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"convertible notes"},{"label":"Principal","value":"$3,991,127.50"},{"label":"Counterparty","value":"East West Bank"},{"label":"Rate","value":"fixed rate of 10% per annum"},{"label":"Maturity","value":"January 15, 2027"},{"label":"Event","value":"amendment"}],"fact_type":"debt_financing"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}