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AMKOR TECHNOLOGY, INC.·4

Feb 17, 4:21 PM ET

KIM JOHN T 4

Research Summary

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Updated

Amkor (AMKR) 10% Owner John T. Kim Sells 10M Shares

What Happened

  • John T. Kim, reported as a 10% owner of Amkor Technology, sold 10,000,000 shares of AMKR on February 12, 2026 at $48.49 per share, for total proceeds of $484,900,000. The shares were sold by 915 Investments, LP in an underwritten secondary offering; the reporting person is the general partner of 915 Investments, LP. This transaction is a sale (code S).

Key Details

  • Transaction date and price: Feb 12, 2026 — 10,000,000 shares at $48.49 each.
  • Proceeds: $484,900,000.
  • Shares owned after transaction: Not specified in the Form 4 itself. The filing includes footnotes indicating the reporting person has pecuniary interests through multiple trusts and entities (examples listed below).
  • Notable footnotes:
    • F1: Sale executed by 915 Investments, LP pursuant to an underwritten secondary offering; reporting person is GP of that LP.
    • F2–F5: Reporting person disclaims direct beneficial ownership except to extent of pecuniary interest and is treated as having interests in multiple entities holding large blocks (examples cited in the filing include 9,846,944; 1,253,250; 19,484,809; 16,710,668; 29,594,980; and 3,789,479 shares across various trusts/partnerships/LLCs).
    • F4/F5 and Remarks: The filer disclaims beneficial ownership except for pecuniary interest and states the Form 4 should not be read as admission of beneficial ownership for Section 16 purposes.
  • Filing timeliness: Transaction dated Feb 12, 2026; Form 4 filed Feb 17, 2026 (5 days later). The filing indicates tardiness relative to the typical 2-business-day Form 4 requirement.

Context

  • This was an underwritten secondary offering by an affiliated investment vehicle (915 Investments, LP). As a 10% owner and general partner, Kim’s sale was executed through an institutional entity rather than a simple open-market executive sale — a different context than a direct insider liquidity sale or a small open-market sale by an executive.
  • Sales (code S) are often routine and do not, by themselves, indicate management sentiment about the company’s prospects. Purchases generally carry more weight as a signal of insider confidence.