James J. Kim - 30 Jul 2025 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Role
Member of 10% owner group (4), 10%+ Owner
Signature
/s/ Brian D. Short, Attorney-in-Fact for James J. Kim
Issuer symbol
AMKR
Transactions as of
30 Jul 2025
Net transactions value
$0
Form type
4
Filing time
01 Aug 2025, 16:42:39 UTC
Previous filing
26 Feb 2025
Next filing
05 Aug 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
KIM JAMES J Member of 10% owner group (4), 10%+ Owner C/O SIANA CARR O'CONNOR & LYNAM, 1500 EAST LANCASTER AVENUE, PAOLI /s/ Brian D. Short, Attorney-in-Fact for James J. Kim 01 Aug 2025 0001158839

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction AMKR Common Stock Gift $0 +2,711,000 +3774% $0.000000 2,782,828 30 Jul 2025 Direct F1
transaction AMKR Common Stock Gift $0 +1,738,000 +1829% $0.000000 1,833,000 30 Jul 2025 By Spouse F2, F3
holding AMKR Common Stock 7,828,682 30 Jul 2025 By John T. Kim Family Trust U/A dtd. 12/11/12 F3, F4
holding AMKR Common Stock 1,957,350 30 Jul 2025 By John T. Kim G-S Trust dtd. 12/11/12 F3, F4
holding AMKR Common Stock 164,678 30 Jul 2025 By self as Trustee of Trust U/A dtd. 12/11/12 F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On July 30, the 2023 Grantor Retained Annuity Trust of James J. Kim Dated 4/26/2023 distributed 2,711,000 of the Common Stock of Amkor Technology, Inc. (the "Issuer") to the Reporting Person.
F2 On July 30, 2025, the 2023 Grantor Retained Annuity Trust of Agnes C. Kim Dated 4/26/2023 distributed 1,738,000 shares of the Issuer's Common Stock to Agnes C. Kim, the spouse of the Reporting Person.
F3 The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose.
F4 The Reporting Person is (i) a trustee of trusts for the benefit of his immediate family members which own 9,786,032 shares of the Issuer's Common Stock and (ii) a trustee of a trust which is a controlling member of a limited liability company being treated as a corporation for purposes of Section 16, which limited liability company holds 164,678 shares of the Issuer's Common stock. Pursuant to the Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of such shares.

Remarks:

(5) The Reporting Person states that the filing of this Form 4 shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities owned by the other members of the group, for the purpose of Section 16, or for any other purpose.