STOCK TITAN

[Form 4] Amkor Technology Inc Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Amkor Technology Inc. (AMKR) – SEC Form 4 filing (07/30/2025): The 2023 Grantor Retained Annuity Trust of founder James J. Kim (10% owner group) gift-distributed 2,711,000 AMKR common shares to James J. Kim. The transfer is coded “G” (bona-fide gift) with no consideration ($0). Post-distribution, the trust’s direct holdings fall to 876,004 shares. Susan Y. Kim serves as sole trustee; filing states it should not be deemed an admission of beneficial ownership of other group members’ shares.

The transaction represents roughly 1% of Amkor’s ~250 M diluted share count and does not involve an open-market sale, so immediate trading-pressure is limited. However, the shift places a sizable block directly under James J. Kim’s control, potentially increasing future liquidity if he opts to sell. Overall, the filing reflects estate/ownership restructuring rather than a valuation-driven move and carries minimal near-term impact on Amkor’s operations or capital structure.

Amkor Technology Inc. (AMKR) – deposito SEC Modulo 4 (30/07/2025): Il Grantor Retained Annuity Trust 2023 del fondatore James J. Kim (gruppo proprietario al 10%) ha donato 2.711.000 azioni ordinarie AMKR a James J. Kim. Il trasferimento è classificato come “G” (donazione genuina) senza alcun corrispettivo ($0). Dopo la distribuzione, la detenzione diretta del trust scende a 876.004 azioni. Susan Y. Kim è l’unica trustee; il deposito precisa che ciò non deve essere interpretato come un’ammissione di proprietà effettiva delle azioni degli altri membri del gruppo.

La transazione rappresenta circa l’1% delle ~250 milioni di azioni diluite di Amkor e non comporta una vendita sul mercato aperto, quindi la pressione immediata sul trading è limitata. Tuttavia, lo spostamento pone un blocco significativo direttamente sotto il controllo di James J. Kim, potenzialmente aumentando la liquidità futura se decidesse di vendere. Complessivamente, il deposito riflette una ristrutturazione patrimoniale/proprietaria piuttosto che una mossa guidata dalla valutazione e ha un impatto minimo a breve termine sulle operazioni o sulla struttura del capitale di Amkor.

Amkor Technology Inc. (AMKR) – Presentación SEC Formulario 4 (30/07/2025): El Grantor Retained Annuity Trust 2023 del fundador James J. Kim (grupo propietario del 10%) transfirió como regalo 2,711,000 acciones comunes de AMKR a James J. Kim. La transferencia está codificada como “G” (regalo legítimo) sin contraprestación ($0). Tras la distribución, la tenencia directa del fideicomiso se reduce a 876,004 acciones. Susan Y. Kim actúa como fideicomisaria única; la presentación indica que no debe considerarse una admisión de propiedad beneficiaria de las acciones de otros miembros del grupo.

La transacción representa aproximadamente el 1% del total diluido de ~250 millones de acciones de Amkor y no implica una venta en el mercado abierto, por lo que la presión inmediata de negociación es limitada. Sin embargo, el cambio coloca un bloque considerable directamente bajo el control de James J. Kim, lo que podría aumentar la liquidez futura si decide vender. En general, la presentación refleja una reestructuración patrimonial/de propiedad más que un movimiento motivado por valoración y tiene un impacto mínimo a corto plazo en las operaciones o estructura de capital de Amkor.

Amkor Technology Inc. (AMKR) – SEC 양식 4 제출 (2025년 7월 30일): 창립자 James J. Kim(10% 소유 그룹)의 2023년 Grantor Retained Annuity Trust가 James J. Kim에게 2,711,000주 AMKR 보통주를 증여하였습니다. 이 이전은 “G”(진정한 증여)로 분류되며, 대가 없이($0) 이루어졌습니다. 배분 후 신탁의 직접 보유 주식은 876,004주로 감소합니다. Susan Y. Kim이 단독 수탁자로 있으며, 제출서에는 다른 그룹 구성원의 실질 소유권 인정으로 간주되어서는 안 된다고 명시되어 있습니다.

이번 거래는 Amkor의 약 2억 5천만 희석 주식 수의 약 1%에 해당하며, 시장 공개 매도는 포함되지 않아 즉각적인 거래 압력은 제한적입니다. 그러나 이 이동은 상당한 주식 블록을 James J. Kim의 직접 통제 하에 두어, 그가 매도할 경우 향후 유동성이 증가할 가능성이 있습니다. 전반적으로 이번 제출은 상속/소유 구조조정을 반영하며, Amkor의 운영이나 자본 구조에 단기적 영향은 거의 없습니다.

Amkor Technology Inc. (AMKR) – dépôt SEC Formulaire 4 (30/07/2025) : Le Grantor Retained Annuity Trust 2023 du fondateur James J. Kim (groupe propriétaire à 10 %) a transféré en don 2 711 000 actions ordinaires AMKR à James J. Kim. Le transfert est codé « G » (don véritable) sans contrepartie (0 $). Après cette distribution, la détention directe du trust chute à 876 004 actions. Susan Y. Kim est la seule administratrice ; le dépôt précise que cela ne doit pas être considéré comme une reconnaissance de la propriété bénéficiaire des actions des autres membres du groupe.

La transaction représente environ 1 % des ~250 millions d’actions diluées d’Amkor et n’implique pas de vente sur le marché ouvert, limitant ainsi la pression immédiate sur le marché. Cependant, ce transfert place un bloc important directement sous le contrôle de James J. Kim, ce qui pourrait augmenter la liquidité future s’il décide de vendre. Globalement, ce dépôt reflète une restructuration patrimoniale/de propriété plutôt qu’un mouvement motivé par une valorisation et a un impact minimal à court terme sur les opérations ou la structure du capital d’Amkor.

Amkor Technology Inc. (AMKR) – SEC Formular 4 Einreichung (30.07.2025): Der Grantor Retained Annuity Trust 2023 des Gründers James J. Kim (10% Eigentümergruppe) hat 2.711.000 AMKR Stammaktien als Schenkung an James J. Kim übertragen. Die Übertragung ist als „G“ (echte Schenkung) codiert und erfolgte ohne Gegenleistung (0 $). Nach der Verteilung hält der Trust direkt noch 876.004 Aktien. Susan Y. Kim ist alleinige Treuhänderin; die Einreichung stellt klar, dass dies nicht als Anerkennung des wirtschaftlichen Eigentums anderer Gruppenmitglieder an deren Aktien zu verstehen ist.

Die Transaktion entspricht etwa 1 % der rund 250 Mio. verwässerten Aktien von Amkor und beinhaltet keinen Verkauf am offenen Markt, weshalb der unmittelbare Handelsdruck begrenzt ist. Dennoch bringt die Transaktion einen erheblichen Block direkt unter die Kontrolle von James J. Kim, was die zukünftige Liquidität erhöhen könnte, falls er zum Verkauf entscheidet. Insgesamt spiegelt die Einreichung eine Nachlass-/Eigentumsrestrukturierung wider und hat nur minimale kurzfristige Auswirkungen auf Amkors Betrieb oder Kapitalstruktur.

Positive
  • No open-market sale; the 2.7 M shares were transferred as a gift, limiting immediate selling pressure.
  • Insider alignment remains intact; shares stay within the Kim family, signalling continued commitment.
Negative
  • Potential future liquidity event; James J. Kim now controls an additional 2.7 M shares that could be sold later.
  • Trust’s stake reduced; structured oversight of a GRAT is replaced by individual ownership, modestly lowering governance safeguards.

Insights

TL;DR: Internal gift of 2.7 M shares; no cash sale, low near-term market impact, but enlarges James J. Kim’s personal float.

The use of a Rule 16 “G” code confirms this is a gratuitous transfer from the GRAT to the founder, consistent with estate-planning techniques common among long-tenured insiders. Because no shares hit the open market, price pressure should be negligible. The trust’s stake drops to 0.35% while James J. Kim’s direct ownership rises equivalently, preserving overall insider alignment. Nonetheless, moving shares out of a GRAT removes certain lock-up discipline and could expand potential sellable float once holding-period requirements lapse. Investors should watch Form 144 or future Form 4 sales for actual monetisation but treat today’s filing as neutral.

Amkor Technology Inc. (AMKR) – deposito SEC Modulo 4 (30/07/2025): Il Grantor Retained Annuity Trust 2023 del fondatore James J. Kim (gruppo proprietario al 10%) ha donato 2.711.000 azioni ordinarie AMKR a James J. Kim. Il trasferimento è classificato come “G” (donazione genuina) senza alcun corrispettivo ($0). Dopo la distribuzione, la detenzione diretta del trust scende a 876.004 azioni. Susan Y. Kim è l’unica trustee; il deposito precisa che ciò non deve essere interpretato come un’ammissione di proprietà effettiva delle azioni degli altri membri del gruppo.

La transazione rappresenta circa l’1% delle ~250 milioni di azioni diluite di Amkor e non comporta una vendita sul mercato aperto, quindi la pressione immediata sul trading è limitata. Tuttavia, lo spostamento pone un blocco significativo direttamente sotto il controllo di James J. Kim, potenzialmente aumentando la liquidità futura se decidesse di vendere. Complessivamente, il deposito riflette una ristrutturazione patrimoniale/proprietaria piuttosto che una mossa guidata dalla valutazione e ha un impatto minimo a breve termine sulle operazioni o sulla struttura del capitale di Amkor.

Amkor Technology Inc. (AMKR) – Presentación SEC Formulario 4 (30/07/2025): El Grantor Retained Annuity Trust 2023 del fundador James J. Kim (grupo propietario del 10%) transfirió como regalo 2,711,000 acciones comunes de AMKR a James J. Kim. La transferencia está codificada como “G” (regalo legítimo) sin contraprestación ($0). Tras la distribución, la tenencia directa del fideicomiso se reduce a 876,004 acciones. Susan Y. Kim actúa como fideicomisaria única; la presentación indica que no debe considerarse una admisión de propiedad beneficiaria de las acciones de otros miembros del grupo.

La transacción representa aproximadamente el 1% del total diluido de ~250 millones de acciones de Amkor y no implica una venta en el mercado abierto, por lo que la presión inmediata de negociación es limitada. Sin embargo, el cambio coloca un bloque considerable directamente bajo el control de James J. Kim, lo que podría aumentar la liquidez futura si decide vender. En general, la presentación refleja una reestructuración patrimonial/de propiedad más que un movimiento motivado por valoración y tiene un impacto mínimo a corto plazo en las operaciones o estructura de capital de Amkor.

Amkor Technology Inc. (AMKR) – SEC 양식 4 제출 (2025년 7월 30일): 창립자 James J. Kim(10% 소유 그룹)의 2023년 Grantor Retained Annuity Trust가 James J. Kim에게 2,711,000주 AMKR 보통주를 증여하였습니다. 이 이전은 “G”(진정한 증여)로 분류되며, 대가 없이($0) 이루어졌습니다. 배분 후 신탁의 직접 보유 주식은 876,004주로 감소합니다. Susan Y. Kim이 단독 수탁자로 있으며, 제출서에는 다른 그룹 구성원의 실질 소유권 인정으로 간주되어서는 안 된다고 명시되어 있습니다.

이번 거래는 Amkor의 약 2억 5천만 희석 주식 수의 약 1%에 해당하며, 시장 공개 매도는 포함되지 않아 즉각적인 거래 압력은 제한적입니다. 그러나 이 이동은 상당한 주식 블록을 James J. Kim의 직접 통제 하에 두어, 그가 매도할 경우 향후 유동성이 증가할 가능성이 있습니다. 전반적으로 이번 제출은 상속/소유 구조조정을 반영하며, Amkor의 운영이나 자본 구조에 단기적 영향은 거의 없습니다.

Amkor Technology Inc. (AMKR) – dépôt SEC Formulaire 4 (30/07/2025) : Le Grantor Retained Annuity Trust 2023 du fondateur James J. Kim (groupe propriétaire à 10 %) a transféré en don 2 711 000 actions ordinaires AMKR à James J. Kim. Le transfert est codé « G » (don véritable) sans contrepartie (0 $). Après cette distribution, la détention directe du trust chute à 876 004 actions. Susan Y. Kim est la seule administratrice ; le dépôt précise que cela ne doit pas être considéré comme une reconnaissance de la propriété bénéficiaire des actions des autres membres du groupe.

La transaction représente environ 1 % des ~250 millions d’actions diluées d’Amkor et n’implique pas de vente sur le marché ouvert, limitant ainsi la pression immédiate sur le marché. Cependant, ce transfert place un bloc important directement sous le contrôle de James J. Kim, ce qui pourrait augmenter la liquidité future s’il décide de vendre. Globalement, ce dépôt reflète une restructuration patrimoniale/de propriété plutôt qu’un mouvement motivé par une valorisation et a un impact minimal à court terme sur les opérations ou la structure du capital d’Amkor.

Amkor Technology Inc. (AMKR) – SEC Formular 4 Einreichung (30.07.2025): Der Grantor Retained Annuity Trust 2023 des Gründers James J. Kim (10% Eigentümergruppe) hat 2.711.000 AMKR Stammaktien als Schenkung an James J. Kim übertragen. Die Übertragung ist als „G“ (echte Schenkung) codiert und erfolgte ohne Gegenleistung (0 $). Nach der Verteilung hält der Trust direkt noch 876.004 Aktien. Susan Y. Kim ist alleinige Treuhänderin; die Einreichung stellt klar, dass dies nicht als Anerkennung des wirtschaftlichen Eigentums anderer Gruppenmitglieder an deren Aktien zu verstehen ist.

Die Transaktion entspricht etwa 1 % der rund 250 Mio. verwässerten Aktien von Amkor und beinhaltet keinen Verkauf am offenen Markt, weshalb der unmittelbare Handelsdruck begrenzt ist. Dennoch bringt die Transaktion einen erheblichen Block direkt unter die Kontrolle von James J. Kim, was die zukünftige Liquidität erhöhen könnte, falls er zum Verkauf entscheidet. Insgesamt spiegelt die Einreichung eine Nachlass-/Eigentumsrestrukturierung wider und hat nur minimale kurzfristige Auswirkungen auf Amkors Betrieb oder Kapitalstruktur.

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*
2023 Grantor Retained Annuity Trust of James J. Kim Dated 4/26/2023

(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 (2)
3. Date of Earliest Transaction (Month/Day/Year)
07/30/2025
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 07/30/2025 G 2,711,000(1) D $0 876,004 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 July 30, 2025 the Reporting Person distributed 2,711,000 shares of the Common Stock of Amkor Technology, Inc. to James J. Kim. Susan Y. Kim is the sole trustee of the Reporting Person.
Remarks:
(2) 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 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
/s/ Brian D. Short, Attorney-in-Fact 08/01/2025
** 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 July 30 2025 Form 4?

The trust gifted 2,711,000 common shares to James J. Kim.

Was there any cash consideration for the AMKR share transfer?

No. The transaction is coded “G” (gift) with $0 price.

What is the trust’s remaining AMKR shareholding after the distribution?

The GRAT now holds 876,004 shares directly.

Does the transaction affect Amkor Technology’s outstanding share count?

No. It is an internal transfer among insiders; total shares outstanding are unchanged.

Could the transfer lead to future insider sales of AMKR stock?

Possibly. James J. Kim directly controls the additional shares and could file Form 144 or future Form 4 sales.
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