---
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"
generated_at: "2026-05-23T09:30:16.881304+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# NKGen amends East West Bank loan: maturity to Jan 2027, rate 10%, $3.99M principal

## Summary
- 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.

## SEC filing metadata
- accession: 0001213900-25-034184
- form_type: 8-K
- cik: 0001845459
- company_name: NKGen Biotech, Inc.
- filed_at: 2025-04-22T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- 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

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-034184
- JSON: https://secwatch.observer/filing/0001213900-25-034184.json
- Plain text: https://secwatch.observer/filing/0001213900-25-034184.txt

## Key facts
- Debt Financings
  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.
  - Instrument: convertible notes
  - Principal: $3,991,127.50
  - Counterparty: East West Bank
  - Rate: fixed rate of 10% per annum
  - Maturity: January 15, 2027
  - Event: amendment
  source text: 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_url: https://www.sec.gov/Archives/edgar/data/1845459/000121390025034184/0001213900-25-034184-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.