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AI brief of an SEC Form 8-K · Amkor Technology (AMKR)

Amkor Technology issues $500 million 2033 notes to redeem $400 million 2027 notes

Neutral Impact 3 of 5 financing Written later

Amkor Technology completed a $500 million offering of 5.875% senior notes due 2033 on September 22, 2025. The company also called all $400 million of its 6.625% senior notes due 2027 for redemption on October 9, 2025, and plans to fund that redemption with the new notes' proceeds. For shareholders, this is a refinancing of existing debt, replacing 6.625% notes with 5.875% notes, and the filing does not describe any change to operating results.

Key points

  • $500 million of 5.875% senior unsecured notes due October 1, 2033, issued September 22, 2025
  • Redemption of all $400 million of 6.625% notes due 2027 on October 9, 2025, at 100% of principal plus accrued interest
  • Company expects to use 2033 note proceeds for the redemption, related fees and expenses, and general corporate purposes
  • Guardian Assets, Inc. initially guarantees the 2033 notes; U.S. Bank Trust Company, National Association is trustee

The filing

CompanyAmkor Technology (AMKR)
Form8-K, current report
Filed with the SECSep 22, 2025, 4:31 PM ET
Accession number0001047127-25-000184

Items reported: 1.01 Material Definitive Agreement2.03 New Direct Financial Obligation8.01 Other Events

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:17 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on September 22, 2025.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.