STOCK TITAN

[Form 4] Amkor Technology Inc Insider Trading Activity

Filing Impact
(High)
Filing Sentiment
(Very Negative)
Form Type
4
Rhea-AI Filing Summary

Form 4 snapshot: On 08/01/2025 insider Agnes C. Kim, an officer of Amkor Technology (AMKR), reported an indirect disposition of 441,589 common shares. The shares were transferred by her spouse, James J. Kim, to Sujoda Investments LP at a reference price of $21.85 per share as part of an intra-family transaction.

Following the transfer, Kim’s reported indirect holdings fell to 12,290,281 shares. A second line lists 1,833,000 shares as disposed (“D”) but omits date and price, leaving details unclear. No derivative positions were reported and no open-market sales are indicated. The filer expressly disclaims beneficial ownership beyond her pecuniary interest.

The movement equals roughly 3-4 % of the previously reported stake and appears to be estate-planning rather than a change in investment view. The filing contains no operating or earnings data.

Riepilogo del Modulo 4: Il 01/08/2025 l'insider Agnes C. Kim, dirigente di Amkor Technology (AMKR), ha segnalato una cessione indiretta di 441.589 azioni ordinarie. Le azioni sono state trasferite dal coniuge, James J. Kim, a Sujoda Investments LP a un prezzo di riferimento di 21,85 $ per azione nell'ambito di una transazione intra-familiare.

Dopo il trasferimento, le partecipazioni indirette segnalate di Kim sono scese a 12.290.281 azioni. Una seconda riga indica la cessione di 1.833.000 azioni (“D”) ma senza specificare data e prezzo, lasciando i dettagli poco chiari. Non sono state segnalate posizioni derivati né vendite sul mercato aperto. La dichiarante esclude espressamente la titolarità effettiva oltre il suo interesse patrimoniale.

Il movimento corrisponde a circa il 3-4% della partecipazione precedentemente segnalata e sembra essere legato a pianificazione patrimoniale piuttosto che a un cambiamento di strategia d'investimento. La documentazione non contiene dati operativi o di utile.

Resumen del Formulario 4: El 01/08/2025, la insider Agnes C. Kim, oficial de Amkor Technology (AMKR), reportó una disposición indirecta de 441,589 acciones comunes. Las acciones fueron transferidas por su cónyuge, James J. Kim, a Sujoda Investments LP a un precio de referencia de $21.85 por acción como parte de una transacción intra-familiar.

Tras la transferencia, las participaciones indirectas reportadas de Kim bajaron a 12,290,281 acciones. Una segunda línea menciona la disposición de 1,833,000 acciones (“D”) pero omite fecha y precio, dejando los detalles poco claros. No se reportaron posiciones en derivados ni ventas en mercado abierto. La declarante niega expresamente la propiedad beneficiaria más allá de su interés pecuniario.

El movimiento equivale aproximadamente al 3-4 % de la participación previamente reportada y parece estar relacionado con planificación patrimonial más que con un cambio en la estrategia de inversión. El documento no contiene datos operativos ni de ganancias.

Form 4 요약: 2025년 8월 1일, Amkor Technology(AMKR)의 임원인 내부자 Agnes C. Kim은 간접적으로 441,589주 보통주 처분을 보고했습니다. 해당 주식은 그녀의 배우자 James J. Kim이 가족 내 거래의 일환으로 주당 $21.85의 기준 가격으로 Sujoda Investments LP에 이전했습니다.

이전 후 Kim의 보고된 간접 보유 주식은 12,290,281주로 감소했습니다. 두 번째 항목에는 1,833,000주가 처분(“D”)된 것으로 나와 있으나 날짜와 가격이 누락되어 세부 사항이 명확하지 않습니다. 파생상품 포지션 보고나 공개 시장 매도는 없었습니다. 신고자는 경제적 이익을 넘어선 실질적 소유권을 명확히 부인합니다.

이번 이동은 이전에 보고된 지분의 약 3-4%에 해당하며, 투자 관점의 변화보다는 재산 계획에 따른 것으로 보입니다. 제출 서류에는 운영 실적이나 수익 데이터가 포함되어 있지 않습니다.

Résumé du formulaire 4 : Le 01/08/2025, l’initiée Agnes C. Kim, cadre chez Amkor Technology (AMKR), a déclaré une cession indirecte de 441 589 actions ordinaires. Les actions ont été transférées par son conjoint, James J. Kim, à Sujoda Investments LP au prix de référence de 21,85 $ par action dans le cadre d’une transaction intra-familiale.

Après ce transfert, les participations indirectes déclarées de Kim sont tombées à 12 290 281 actions. Une seconde ligne indique la cession de 1 833 000 actions (« D ») sans préciser la date ni le prix, ce qui laisse les détails flous. Aucune position sur dérivés n’a été signalée et aucune vente sur le marché ouvert n’est indiquée. La déclarente nie expressément toute propriété bénéficiaire au-delà de son intérêt pécuniaire.

Ce mouvement correspond à environ 3-4 % de la participation précédemment déclarée et semble relever d’une planification successorale plutôt que d’un changement de stratégie d’investissement. Le dossier ne contient aucune donnée opérationnelle ou de résultat.

Formular 4 Zusammenfassung: Am 01.08.2025 meldete Insider Agnes C. Kim, eine Führungskraft von Amkor Technology (AMKR), eine indirekte Veräußerung von 441.589 Stammaktien. Die Aktien wurden von ihrem Ehepartner James J. Kim im Rahmen einer familieninternen Transaktion zu einem Referenzpreis von 21,85 $ pro Aktie an Sujoda Investments LP übertragen.

Nach der Übertragung sanken Kims gemeldete indirekte Bestände auf 12.290.281 Aktien. Eine zweite Zeile listet 1.833.000 Aktien als veräußert („D“) auf, ohne Datum und Preis anzugeben, wodurch die Details unklar bleiben. Es wurden keine Derivatpositionen gemeldet und keine Verkäufe am offenen Markt angezeigt. Die Meldende weist ausdrücklich jegliches wirtschaftliche Eigentum über ihr finanzielles Interesse hinaus zurück.

Die Bewegung entspricht etwa 3-4 % des zuvor gemeldeten Anteils und scheint eher der Nachlassplanung als einer Änderung der Investmentstrategie zu dienen. Die Meldung enthält keine operativen oder Gewinnzahlen.

Positive
  • Insider continues to hold 12,290,281 shares, reflecting ongoing alignment with shareholder interests despite the transfer.
Negative
  • Disposition of 441,589 shares (and an unclear 1.833 million-share line) reduces the reported stake and could be perceived as slight insider selling.
  • Lack of detail on the 1.833 million-share disposition creates uncertainty for investors tracking insider activity.

Insights

TL;DR: Small family share transfer; likely neutral for AMKR valuation.

This Form 4 records an intra-family distribution, not an open-market sale, of 441,589 AMKR shares at $21.85. Agnes C. Kim still controls over 12 million shares, maintaining significant alignment with shareholders. The additional 1.833 million-share line is ambiguous and limits precision, but even if fully divested it would not materially alter Amkor’s float or signal strategic intent. No derivative trades or executive departures accompany the filing. Overall impact on stock sentiment and liquidity is minimal.

Riepilogo del Modulo 4: Il 01/08/2025 l'insider Agnes C. Kim, dirigente di Amkor Technology (AMKR), ha segnalato una cessione indiretta di 441.589 azioni ordinarie. Le azioni sono state trasferite dal coniuge, James J. Kim, a Sujoda Investments LP a un prezzo di riferimento di 21,85 $ per azione nell'ambito di una transazione intra-familiare.

Dopo il trasferimento, le partecipazioni indirette segnalate di Kim sono scese a 12.290.281 azioni. Una seconda riga indica la cessione di 1.833.000 azioni (“D”) ma senza specificare data e prezzo, lasciando i dettagli poco chiari. Non sono state segnalate posizioni derivati né vendite sul mercato aperto. La dichiarante esclude espressamente la titolarità effettiva oltre il suo interesse patrimoniale.

Il movimento corrisponde a circa il 3-4% della partecipazione precedentemente segnalata e sembra essere legato a pianificazione patrimoniale piuttosto che a un cambiamento di strategia d'investimento. La documentazione non contiene dati operativi o di utile.

Resumen del Formulario 4: El 01/08/2025, la insider Agnes C. Kim, oficial de Amkor Technology (AMKR), reportó una disposición indirecta de 441,589 acciones comunes. Las acciones fueron transferidas por su cónyuge, James J. Kim, a Sujoda Investments LP a un precio de referencia de $21.85 por acción como parte de una transacción intra-familiar.

Tras la transferencia, las participaciones indirectas reportadas de Kim bajaron a 12,290,281 acciones. Una segunda línea menciona la disposición de 1,833,000 acciones (“D”) pero omite fecha y precio, dejando los detalles poco claros. No se reportaron posiciones en derivados ni ventas en mercado abierto. La declarante niega expresamente la propiedad beneficiaria más allá de su interés pecuniario.

El movimiento equivale aproximadamente al 3-4 % de la participación previamente reportada y parece estar relacionado con planificación patrimonial más que con un cambio en la estrategia de inversión. El documento no contiene datos operativos ni de ganancias.

Form 4 요약: 2025년 8월 1일, Amkor Technology(AMKR)의 임원인 내부자 Agnes C. Kim은 간접적으로 441,589주 보통주 처분을 보고했습니다. 해당 주식은 그녀의 배우자 James J. Kim이 가족 내 거래의 일환으로 주당 $21.85의 기준 가격으로 Sujoda Investments LP에 이전했습니다.

이전 후 Kim의 보고된 간접 보유 주식은 12,290,281주로 감소했습니다. 두 번째 항목에는 1,833,000주가 처분(“D”)된 것으로 나와 있으나 날짜와 가격이 누락되어 세부 사항이 명확하지 않습니다. 파생상품 포지션 보고나 공개 시장 매도는 없었습니다. 신고자는 경제적 이익을 넘어선 실질적 소유권을 명확히 부인합니다.

이번 이동은 이전에 보고된 지분의 약 3-4%에 해당하며, 투자 관점의 변화보다는 재산 계획에 따른 것으로 보입니다. 제출 서류에는 운영 실적이나 수익 데이터가 포함되어 있지 않습니다.

Résumé du formulaire 4 : Le 01/08/2025, l’initiée Agnes C. Kim, cadre chez Amkor Technology (AMKR), a déclaré une cession indirecte de 441 589 actions ordinaires. Les actions ont été transférées par son conjoint, James J. Kim, à Sujoda Investments LP au prix de référence de 21,85 $ par action dans le cadre d’une transaction intra-familiale.

Après ce transfert, les participations indirectes déclarées de Kim sont tombées à 12 290 281 actions. Une seconde ligne indique la cession de 1 833 000 actions (« D ») sans préciser la date ni le prix, ce qui laisse les détails flous. Aucune position sur dérivés n’a été signalée et aucune vente sur le marché ouvert n’est indiquée. La déclarente nie expressément toute propriété bénéficiaire au-delà de son intérêt pécuniaire.

Ce mouvement correspond à environ 3-4 % de la participation précédemment déclarée et semble relever d’une planification successorale plutôt que d’un changement de stratégie d’investissement. Le dossier ne contient aucune donnée opérationnelle ou de résultat.

Formular 4 Zusammenfassung: Am 01.08.2025 meldete Insider Agnes C. Kim, eine Führungskraft von Amkor Technology (AMKR), eine indirekte Veräußerung von 441.589 Stammaktien. Die Aktien wurden von ihrem Ehepartner James J. Kim im Rahmen einer familieninternen Transaktion zu einem Referenzpreis von 21,85 $ pro Aktie an Sujoda Investments LP übertragen.

Nach der Übertragung sanken Kims gemeldete indirekte Bestände auf 12.290.281 Aktien. Eine zweite Zeile listet 1.833.000 Aktien als veräußert („D“) auf, ohne Datum und Preis anzugeben, wodurch die Details unklar bleiben. Es wurden keine Derivatpositionen gemeldet und keine Verkäufe am offenen Markt angezeigt. Die Meldende weist ausdrücklich jegliches wirtschaftliche Eigentum über ihr finanzielles Interesse hinaus zurück.

Die Bewegung entspricht etwa 3-4 % des zuvor gemeldeten Anteils und scheint eher der Nachlassplanung als einer Änderung der Investmentstrategie zu dienen. Die Meldung enthält keine operativen oder Gewinnzahlen.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
KIM AGNES C

(Last) (First) (Middle)
C/O SIANA CARR O'CONNOR & LYNAM
1500 EAST LANCASTER AVENUE

(Street)
PAOLI PA 19301-9713

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
AMKOR TECHNOLOGY, INC. [ AMKR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
Officer (give title below) X Other (specify below)
Member of 10% owner group (3)
3. Date of Earliest Transaction (Month/Day/Year)
08/01/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/01/2025 S 441,589(1) D $21.85 12,290,281(2) I By Spouse
Common Stock 1,833,000 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. On August 1, 2025, James J. Kim distributed 441,589 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") to Sujoda Investments, LP pursuant to the terms of a transaction between members of the Kim family group
2. James J. Kim is the spouse of the Reporting Person. 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.
Remarks:
(3) 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.
/s/ Brian D. Short, Attorney-in-Fact for Agnes C. Kim 08/05/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many AMKR shares were transferred in the August 1 2025 transaction?

The Form 4 reports a transfer of 441,589 common shares.

At what price were the transferred AMKR shares valued?

The reference price shown is $21.85 per share.

How many AMKR shares does Agnes C. Kim now beneficially own?

After the transaction she reports 12,290,281 shares held indirectly via her spouse.

Was the 441,589-share move an open-market sale?

No. It was an intra-family distribution to Sujoda Investments LP, not a market sale.

Does the Form 4 list any derivative securities for Agnes C. Kim?

No; Table II shows no derivative positions acquired or disposed.

What is the relationship between Agnes C. Kim and James J. Kim?

James J. Kim is Agnes C. Kim’s spouse, and the reported shares are held indirectly through him.
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