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person · Reporting owner

KIM SUSAN Y

Disclosed activity across 1 company

Tapewire entity
35459
SEC CIK
0001158922

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
AMKOR TECHNOLOGY, INC.AMKR · Entity 3481Director · 10% owner · Member of 10% owner group (5)September 22, 2026September 24, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

AMKOR TECHNOLOGY, INC.

Report date September 22, 2026 · Filed September 24, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00Direct2,619.5144 Reported balance After 2026-09-22 transaction · row 10 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 10 · 2026-09-22 · Grant · Acquired 3.9978 · Balance 2,619.5144

F4: Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on September 22, 2026 with respect to time-vested restricted stock units ("RSUs") of the Issuer granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.

Common StockSEC Table I · non-derivativeDirect6,120,387 Reported balance Holding disclosure · report date 2026-09-22 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 6,120,387

Common StockSEC Table I · non-derivativeIndirect2025 Grantor Retained Annuity Trust No. 1 of James J. Kim3,244,594 Reported balance Holding disclosure · report date 2026-09-22 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 3,244,594

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

Common StockSEC Table I · non-derivativeIndirect2025 Grantor Retained Annuity Trust No. 1 of Agnes C. Kim2,538,000 Reported balance Holding disclosure · report date 2026-09-22 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 2,538,000

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

Common StockSEC Table I · non-derivativeIndirectBy James J. Kim 2024 GRAT dtd. 8/5/241,235,000 Reported balance Holding disclosure · report date 2026-09-22 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 1,235,000

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

Common StockSEC Table I · non-derivativeIndirectBy Agnes C. Kim 2024 GRAT dtd. 8/5/24895,000 Reported balance Holding disclosure · report date 2026-09-22 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 895,000

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

Common StockSEC Table I · non-derivativeIndirectBy own GRATs1,124,000 Reported balance Holding disclosure · report date 2026-09-22 · row 6 Holding and transaction disclosures are not merged.
1 source row

Row 6 · Balance 1,124,000

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

Common StockSEC Table I · non-derivativeIndirectBy trusts (excl. GRATs)3,713,610 Reported balance Holding disclosure · report date 2026-09-22 · row 7 Holding and transaction disclosures are not merged.
1 source row

Row 7 · Balance 3,713,610

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

Common StockSEC Table I · non-derivativeIndirectBy Sujoda Investments, LP3,789,479 Reported balance Holding disclosure · report date 2026-09-22 · row 8 Holding and transaction disclosures are not merged.
1 source row

Row 8 · Balance 3,789,479

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

F3: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person.

Common StockSEC Table I · non-derivativeIndirectBy Sujochil, LP19,484,809 Reported balance Holding disclosure · report date 2026-09-22 · row 9 Holding and transaction disclosures are not merged.
1 source row

Row 9 · Balance 19,484,809

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

Filing footnotes · ownership attribution and instrument terms

F1: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"), (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock, and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 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.

F2: 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.

F3: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person.

F4: Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on September 22, 2026 with respect to time-vested restricted stock units ("RSUs") of the Issuer granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 04, 2021 Filed Jan 21, 2022 20:38 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 626,192 $24.70 $15,466,942.40
Disclosure

SEC source: 0000899243-22-002858 · doc4.xml · nonDerivative · entry 6

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Member of 10% owner group (15)

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,414,562

F5 · shares: On October 4, 2021, the Qualified Annuity Trust under the James J. Kim 2018-1 Qualified Annuity Trust Agreement dtd 8/30/18 distributed 626,192 shares of the Issuer's Common Stock to the reporting person.

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October 04, 2021 Filed Jan 21, 2022 20:38 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 626,192 $24.70 $15,466,942.40
Disclosure

SEC source: 0000899243-22-002858 · doc4.xml · nonDerivative · entry 5

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Member of 10% owner group (15)

10b5-1 filing: Not disclosed

Ownership: Indirect · By James J. Kim GRAT dtd 8/30/18

Disclosed balance after: 0

F5 · shares: On October 4, 2021, the Qualified Annuity Trust under the James J. Kim 2018-1 Qualified Annuity Trust Agreement dtd 8/30/18 distributed 626,192 shares of the Issuer's Common Stock to the reporting person.

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October 04, 2021 Filed Jan 21, 2022 20:38 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 626,192 $24.70 $15,466,942.40
Disclosure

SEC source: 0000899243-22-002858 · doc4.xml · nonDerivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Member of 10% owner group (15)

10b5-1 filing: Not disclosed

Ownership: Indirect · By James J. Kim GRAT dtd 8/30/18

Disclosed balance after: 626,192

F4 · shares: On October 4, 2021, the Qualified Annuity Trust under the James J. Kim 2018-1 Qualified Annuity Trust Agreement dtd 8/30/18 distributed 626,192 shares of the Issuer's Common Stock to John T. Kim.

F11 · balance_after: Pursuant to the Form 4 instructions, the reporting person is being treated as having a pecuniary interest in all of these shares. 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, or for any other purpose.

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October 01, 2021 Filed Jan 21, 2022 20:38 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 328,350 $25.11 $8,244,868.50
Disclosure

SEC source: 0000899243-22-002858 · doc4.xml · nonDerivative · entry 3

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Member of 10% owner group (15)

10b5-1 filing: Not disclosed

Ownership: Indirect · By James J. Kim GRAT dtd 8/30/18

Disclosed balance after: 1,252,384

F3 · shares: On October 1, 2021, the Qualified Annuity Trust under the James J. Kim 2018-1 Qualified Annuity Trust Agreement dtd 8/30/18 distributed 328,350 shares of the Issuer's Common Stock to James J. Kim. James J. Kim and the reporting person are the co-trustees of the trust.

F11 · balance_after: Pursuant to the Form 4 instructions, the reporting person is being treated as having a pecuniary interest in all of these shares. 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, or for any other purpose.

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September 01, 2021 Filed Jan 21, 2022 20:38 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 163,200 $27.71 $4,522,272.00
Disclosure

SEC source: 0000899243-22-002858 · doc4.xml · nonDerivative · entry 2

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Member of 10% owner group (15)

10b5-1 filing: Not disclosed

Ownership: Indirect · By James J. Kim GRAT dtd 4/1/20

Disclosed balance after: 1,401,123

F2 · shares: On September 1, 2021, the James J. Kim 2020-1 Qualified Annuity Trust under the James J. Kim 2020-1 Qualified Annuity Trust Agreement dated 04/01/2021 distributed 163,200 shares of the Issuer's Common Stock to James J. Kim. James J. Kim and the reporting person are the co-trustees of the trust. James J. Kim and the reporting person are father and daughter.

F11 · balance_after: Pursuant to the Form 4 instructions, the reporting person is being treated as having a pecuniary interest in all of these shares. 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, or for any other purpose.

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July 01, 2021 Filed Jan 21, 2022 20:38 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 174,810 $23.37 $4,085,309.70
Disclosure

SEC source: 0000899243-22-002858 · doc4.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Member of 10% owner group (15)

10b5-1 filing: Not disclosed

Ownership: Indirect · By John T. Kim GRAT dtd 2/6/18

Disclosed balance after: 1,028,132

F1 · shares: On July 1, 2021, the John T. Kim 2018 Qualified Annuity Trust under the John T. Kim 2018 Irrevocable Trust Agreement dated 2/6/18 distributed 174,810 shares of the Issuer's Common Stock to John T. Kim. John T. Kim and the reporting person are the co-trustees of the trust. John T. Kim and the reporting person are siblings. The reporting person inadvertently omitted the 1,028,132 shares of the Issuer's Common Stock held by the John T. Kim GRAT dtd 2/6/18 from her indirect holdings reported on her Form 4 filed with the Commission on January 4, 2022.

F1 · balance_after: On July 1, 2021, the John T. Kim 2018 Qualified Annuity Trust under the John T. Kim 2018 Irrevocable Trust Agreement dated 2/6/18 distributed 174,810 shares of the Issuer's Common Stock to John T. Kim. John T. Kim and the reporting person are the co-trustees of the trust. John T. Kim and the reporting person are siblings. The reporting person inadvertently omitted the 1,028,132 shares of the Issuer's Common Stock held by the John T. Kim GRAT dtd 2/6/18 from her indirect holdings reported on her Form 4 filed with the Commission on January 4, 2022.

F11 · balance_after: Pursuant to the Form 4 instructions, the reporting person is being treated as having a pecuniary interest in all of these shares. 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, or for any other purpose.

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May 18, 2021 Filed May 19, 2021 21:20 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $19.39 $0.00
Disclosure

SEC source: 0001209191-21-034062 · doc4.xml · derivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Amkor Technology Inc. Common Stock · 20,000 shares

Expires 2031-05-18

F3 · derivative.exercise_date: These options vest 100% on the earlier of the first anniversary of the grant date or the date of the first annual meeting of stockholders following the grant date.

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May 18, 2021 Filed May 19, 2021 21:20 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantCommon Stock 3,094 $0.00 $0.00
Disclosure

SEC source: 0001209191-21-034062 · doc4.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,516,475

F1 · shares: These are restricted shares which vest 100% on the earlier of the first anniversary of the grant date, or the date of the first annual meeting of stockholders following the grant date.

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December 21, 2020 Filed Dec 22, 2020 21:54 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 4,083,065 $15.01 $61,286,805.65
Disclosure

SEC source: 0000899243-20-034843 · doc4.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By Self as Trustee

Disclosed balance after: 39,732,127

F1 · balance_after: 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, or for any other purpose.

F2 · balance_after: On December 21, 2020, Agnes C. Kim transferred 4,083,065 shares of the Issuer's Common Stock to the Agnes C. Kim 2020-1 Qualified Annuity Trust U/A Dated 12/16/20 as a gift. Susan Y. Kim, a Reporting Person, is the sole trustee of the trust.

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December 17, 2020 Filed Dec 21, 2020 19:59 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 816,613 $15.41 $12,584,006.33
Disclosure

SEC source: 0000899243-20-034675 · doc4.xml · nonDerivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By Self as Trustee

Disclosed balance after: 35,649,062

F1 · balance_after: 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, or for any other purpose.

F5 · balance_after: On December 17, 2020, the James J. Kim 2008 Trust FBO Alexandra Kim Panichello & Descendants transferred 816,613 shares of Common Stock to Agnes C. Kim in payment of a Note. John T. Kim and Susan Y. Kim are co-trustees of the trust.

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December 17, 2020 Filed Dec 21, 2020 19:59 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 816,613 $15.41 $12,584,006.33
Disclosure

SEC source: 0000899243-20-034675 · doc4.xml · nonDerivative · entry 3

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By Self as Trustee

Disclosed balance after: 36,465,675

F1 · balance_after: 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, or for any other purpose.

F4 · balance_after: On December 17, 2020, the James J. Kim 2008 Trust FBO Dylan James Panichello & Descendants transferred 816,613 shares of Common Stock to Agnes C. Kim in payment of a Note. John T. Kim and Susan Y. Kim are co-trustees of the trust.

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December 17, 2020 Filed Dec 21, 2020 19:59 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 816,613 $15.41 $12,584,006.33
Disclosure

SEC source: 0000899243-20-034675 · doc4.xml · nonDerivative · entry 2

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By Self as Trustee

Disclosed balance after: 37,282,288

F1 · balance_after: 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, or for any other purpose.

F3 · balance_after: On December 17, 2020, the James J. Kim 2008 Trust FBO Jacqueline Mary Panichello & Descendants transferred 816,613 shares of Common Stock to Agnes C. Kim in payment of a Note. John T. Kim and Susan Y. Kim are co-trustees of the trust.

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December 17, 2020 Filed Dec 21, 2020 19:59 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 1,633,226 $15.41 $25,168,012.66
Disclosure

SEC source: 0000899243-20-034675 · doc4.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By Self as Trustee

Disclosed balance after: 38,098,901

F1 · balance_after: 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, or for any other purpose.

F2 · balance_after: On December 17, 2020, the James J. Kim 2008 Trust FBO Descendants of John T. Kim transferred 1,633,226 shares of Common Stock to Agnes C. Kim in payment of a Note. John T. Kim and Susan Y. Kim are co-trustees of the trust.

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December 15, 2020 Filed Feb 16, 2021 13:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 446,316 $15.40 $6,873,266.40
Disclosure

SEC source: 0000899243-21-006552 · doc5.xml · nonDerivative · entry 8

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 32,339,816

F6 · kind: On December 15, 2020, the James J. Kim 2018-1 Qualified Annuity Trust U/A Dated 8/30/18 distributed 446,316 shares of the Issuer's Common Stock to James J. Kim. James J. Kim and Susan Y. Kim are co-trustees of the trust.

F7 · balance_after: The reporting person may be deemed to indirectly own 27,717,773 shares of the Issuer's Common Stock held by various family trusts of which the reporting person is a trustee, 4,622,043 shares of the Issuer's Common Stock held by grantor retained annuity trusts (see footnote 9), and 25,674,640 shares of the Issuer's Common Stock held by limited partnerships established for the benefit of members of the James J. Kim family of which the reporting person is a general partner. 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, or for any other purpose.

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December 15, 2020 Filed Feb 16, 2021 13:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 727,169 $15.40 $11,198,402.60
Disclosure

SEC source: 0000899243-21-006552 · doc5.xml · nonDerivative · entry 7

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 32,339,816

F5 · kind: On December 15, 2020, the James J. Kim 2019-1 Qualified Annuity Trust U/A Dated 9/10/19 distributed 727,169 shares of the Issuer's Common Stock to James J. Kim. James J. Kim and Susan Y. Kim are co-trustees of the trust.

F7 · balance_after: The reporting person may be deemed to indirectly own 27,717,773 shares of the Issuer's Common Stock held by various family trusts of which the reporting person is a trustee, 4,622,043 shares of the Issuer's Common Stock held by grantor retained annuity trusts (see footnote 9), and 25,674,640 shares of the Issuer's Common Stock held by limited partnerships established for the benefit of members of the James J. Kim family of which the reporting person is a general partner. 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, or for any other purpose.

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August 21, 2020 Filed Feb 16, 2021 13:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 561,343 $12.71 $7,134,669.53
Disclosure

SEC source: 0000899243-21-006552 · doc5.xml · nonDerivative · entry 6

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 32,339,816

F4 · kind: On August 21, 2020, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated 3/16/15 distributed 561,343 shares of the Issuer's Common Stock to the Family Trust Under the Susan Y. Kim 2012 Irrevocable Trust Agreement Dated 7/26/12. Susan Y. Kim and John T. Kim are co-trustees of both of the trusts.

F7 · balance_after: The reporting person may be deemed to indirectly own 27,717,773 shares of the Issuer's Common Stock held by various family trusts of which the reporting person is a trustee, 4,622,043 shares of the Issuer's Common Stock held by grantor retained annuity trusts (see footnote 9), and 25,674,640 shares of the Issuer's Common Stock held by limited partnerships established for the benefit of members of the James J. Kim family of which the reporting person is a general partner. 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, or for any other purpose.

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August 21, 2020 Filed Feb 16, 2021 13:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 561,343 $12.71 $7,134,669.53
Disclosure

SEC source: 0000899243-21-006552 · doc5.xml · nonDerivative · entry 5

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 32,339,816

F4 · kind: On August 21, 2020, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated 3/16/15 distributed 561,343 shares of the Issuer's Common Stock to the Family Trust Under the Susan Y. Kim 2012 Irrevocable Trust Agreement Dated 7/26/12. Susan Y. Kim and John T. Kim are co-trustees of both of the trusts.

F7 · balance_after: The reporting person may be deemed to indirectly own 27,717,773 shares of the Issuer's Common Stock held by various family trusts of which the reporting person is a trustee, 4,622,043 shares of the Issuer's Common Stock held by grantor retained annuity trusts (see footnote 9), and 25,674,640 shares of the Issuer's Common Stock held by limited partnerships established for the benefit of members of the James J. Kim family of which the reporting person is a general partner. 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, or for any other purpose.

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May 26, 2020 Filed Feb 16, 2021 13:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 1,564,323 $10.33 $16,159,456.59
Disclosure

SEC source: 0000899243-21-006552 · doc5.xml · nonDerivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 32,339,816

F3 · kind: On May 26, 2020, James J. Kim transferred 1,564,323 shares of the Issuer's Common Stock to the James J. Kim 2020-1 Qualified Annuity Trust under the James J. Kim 2020-1 Qualified Annuity Trust Agreement dated 4/1/20. Susan Y. Kim and James J. Kim are co-trustees.

F7 · balance_after: The reporting person may be deemed to indirectly own 27,717,773 shares of the Issuer's Common Stock held by various family trusts of which the reporting person is a trustee, 4,622,043 shares of the Issuer's Common Stock held by grantor retained annuity trusts (see footnote 9), and 25,674,640 shares of the Issuer's Common Stock held by limited partnerships established for the benefit of members of the James J. Kim family of which the reporting person is a general partner. 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, or for any other purpose.

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May 19, 2020 Filed May 20, 2020 21:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030987 · doc4.xml · derivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-05-19

F3 · derivative.exercise_date: These options vest 100% on the earlier of the first anniversary of the grant date, or the date of the first annual meeting of stockholders following the grant date

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May 19, 2020 Filed May 20, 2020 21:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030987 · doc4.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,598,158

F1 · shares: These are restricted shares which vest 100% on the earlier of the first anniversary of the grant date, or the date of the first annual meeting of stockholders following the grant date.

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March 16, 2020 Filed Feb 16, 2021 13:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 15,641 $7.47 $116,838.27
Disclosure

SEC source: 0000899243-21-006552 · doc5.xml · nonDerivative · entry 3

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,638,381

F2 · kind: On March 16, 2020, the James J. Kim Qualified Annuity Trust U/A Dated 10/13/14 distributed 15,641 shares of the Issuer's Common Stock to each of Susan Y. Kim, John T. Kim and David D. Kim. James J. Kim and Susan Y. Kim are co-trustees.

F8 · balance_after: Includes options to acquire 125,000 shares of the Issuer's Common Stock.

F9 · balance_after: On April 1, 2020, the reporting person gifted 3,000,000 shares of the Issuer's Common Stock to the Qualified Annuity Trust Under the Susan Y. Kim 2020-1 Irrevocable Trust Agreement Dated 04/01/20. Susan Y. Kim and James J. Kim are co-trustees of the trust. On August 19, 2020, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated 3/16/15 distributed 526,500 shares of the Issuer's Common Stock to the reporting person. Susan Y. Kim and John T. Kim are co-trustees of the trust. On December 15, 2020, the Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement Dated 8/29/18 distributed 162,257 shares of the Issuer's Common Stock to the reporting person. James J. Kim and Susan Y. Kim are co-trustees of the trust.

F10 · balance_after: (Continued From Footnote 9) Each of the aforementioned trusts to which the reporting person transferred shares of the Issuer's Common Stock or from which the reporting person received such shares is a grantor retained annuity trust of which the reporting person is the settlor, the sole current beneficiary and a co-trustee. Pursuant to the Form 5 instructions, in her capacity as a co-trustee of the trusts, the reporting person is being treated as having a pecuniary interest in all of the shares held by such trusts. Accordingly, transfers between the reporting person and such trusts result in mere changes from direct to indirect ownership or vice versa. Such transfers are therefore not reported on this Form 5. On December 31, 2020, such grantor retained annuity trusts held 4,622,043 shares of the Issuer's Common Stock.

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March 16, 2020 Filed Feb 16, 2021 13:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 15,641 $7.47 $116,838.27
Disclosure

SEC source: 0000899243-21-006552 · doc5.xml · nonDerivative · entry 2

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 32,339,816

F2 · kind: On March 16, 2020, the James J. Kim Qualified Annuity Trust U/A Dated 10/13/14 distributed 15,641 shares of the Issuer's Common Stock to each of Susan Y. Kim, John T. Kim and David D. Kim. James J. Kim and Susan Y. Kim are co-trustees.

F7 · balance_after: The reporting person may be deemed to indirectly own 27,717,773 shares of the Issuer's Common Stock held by various family trusts of which the reporting person is a trustee, 4,622,043 shares of the Issuer's Common Stock held by grantor retained annuity trusts (see footnote 9), and 25,674,640 shares of the Issuer's Common Stock held by limited partnerships established for the benefit of members of the James J. Kim family of which the reporting person is a general partner. 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, or for any other purpose.

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March 02, 2020 Filed Feb 16, 2021 13:50 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 91,392 $10.28 $939,509.76
Disclosure

SEC source: 0000899243-21-006552 · doc5.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 32,339,816

F1 · kind: On March 2, 2020, the James J. Kim Qualified Annuity Trust U/A Dated 10/13/14 distributed 91,392 shares of the Issuer's Common Stock to James J. Kim. James J. Kim and Susan Y. Kim are co-trustees.

F7 · balance_after: The reporting person may be deemed to indirectly own 27,717,773 shares of the Issuer's Common Stock held by various family trusts of which the reporting person is a trustee, 4,622,043 shares of the Issuer's Common Stock held by grantor retained annuity trusts (see footnote 9), and 25,674,640 shares of the Issuer's Common Stock held by limited partnerships established for the benefit of members of the James J. Kim family of which the reporting person is a general partner. 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, or for any other purpose.

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December 16, 2019 Filed Feb 14, 2020 17:01 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 443,100 $12.92 $5,724,852.00
Disclosure

SEC source: 0000899243-20-004601 · doc5.xml · nonDerivative · entry 8

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 36,720,025

F6 · kind: On December 16, 2019, the James J. Kim 2018-1 Qualified Annuity Trust U/A dtd 8/30/18 transferred 443,100 shares of the Issuer's Common Stock to James J. Kim. James J. Kim and Susan Y. Kim are co-trustees of the trust.

F7 · balance_after: 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, or for any other purpose.

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October 17, 2019 Filed Feb 14, 2020 17:01 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 4,000,000 $9.88 $39,520,000.00
Disclosure

SEC source: 0000899243-20-004601 · doc5.xml · nonDerivative · entry 7

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 36,720,025

F5 · kind: On October 17, 2019, James J. Kim transferred 4,000,000 shares of the Issuer's Common Stock to the James J. Kim 2019-1 Qualified Annuity Trust U/A Dated 9/10/19. James J. Kim and Susan Y. Kim are co-trustees of the trust.

F7 · balance_after: 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, or for any other purpose.

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October 09, 2019 Filed Feb 14, 2020 17:01 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 215,700 $9.65 $2,081,505.00
Disclosure

SEC source: 0000899243-20-004601 · doc5.xml · nonDerivative · entry 6

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,562,517

F4 · kind: On October 9, 2019, the Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd August 29, 2018 distributed 215,700 shares of the Issuer's Common Stock to Susan Y. Kim. Susan Y. Kim and James J. Kim are co-trustees of the trust.

F7 · balance_after: 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, or for any other purpose.

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October 09, 2019 Filed Feb 14, 2020 17:01 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 215,700 $9.65 $2,081,505.00
Disclosure

SEC source: 0000899243-20-004601 · doc5.xml · nonDerivative · entry 5

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 36,720,025

F4 · kind: On October 9, 2019, the Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd August 29, 2018 distributed 215,700 shares of the Issuer's Common Stock to Susan Y. Kim. Susan Y. Kim and James J. Kim are co-trustees of the trust.

F7 · balance_after: 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, or for any other purpose.

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July 12, 2019 Filed Feb 14, 2020 17:01 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 800,000 $7.48 $5,984,000.00
Disclosure

SEC source: 0000899243-20-004601 · doc5.xml · nonDerivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,562,517

F3 · kind: On July 12, 2019, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated March 16, 2015 distributed 800,000 shares of the Issuer's Common Stock to Susan Y. Kim. Susan Y. Kim and John T. Kim are co-trustees of the trust.

F7 · balance_after: 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, or for any other purpose.

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July 12, 2019 Filed Feb 14, 2020 17:01 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 800,000 $7.48 $5,984,000.00
Disclosure

SEC source: 0000899243-20-004601 · doc5.xml · nonDerivative · entry 3

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 36,720,025

F3 · kind: On July 12, 2019, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated March 16, 2015 distributed 800,000 shares of the Issuer's Common Stock to Susan Y. Kim. Susan Y. Kim and John T. Kim are co-trustees of the trust.

F7 · balance_after: 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, or for any other purpose.

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May 15, 2019 Filed May 17, 2019 23:58 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $7.31 $0.00
Disclosure

SEC source: 0001209191-19-031162 · doc4.xml · derivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Amkor Technology Inc. Common Stock · 20,000 shares

Expires 2029-05-15

F3 · derivative.exercise_date: These options vest 100% on the earlier of the first anniversary of the grant date, or the date of the first annual meeting of stockholders following the grant date

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May 15, 2019 Filed May 17, 2019 23:58 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantCommon Stock 8,207 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-031162 · doc4.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,787,177

F1 · shares: These are restricted shares which vest 100% on the earlier of the first anniversary of the grant date, or the date of the first annual meeting of stockholders following the grant date.

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April 29, 2019 Filed Feb 14, 2020 17:01 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 308,000 $9.15 $2,818,200.00
Disclosure

SEC source: 0000899243-20-004601 · doc5.xml · nonDerivative · entry 2

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 36,720,025

F2 · kind: On April 29, 2019, the Qualified Annuity Trust under the John T. Kim 2018 Irrevocable Trust Agreement Dated 2/6/18 distributed 308,000 shares of the Issuer's Common Stock to John T. Kim. Susan Y. Kim and John T. Kim are co-trustees of the trust.

F7 · balance_after: 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, or for any other purpose.

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January 30, 2019 Filed Feb 14, 2020 17:01 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 95,000 $7.88 $748,600.00
Disclosure

SEC source: 0000899243-20-004601 · doc5.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 36,720,025

F1 · kind: On January 30, 2019, the James J. Kim 2014 Qualified Annuity Trust U/A dated 10/13/14 distributed 95,000 shares of the Issuer's Common Stock to James J. Kim. James J. Kim and Susan Y. Kim are co-trustees of the trust.

F7 · balance_after: 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, or for any other purpose.

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October 08, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,000,000 $6.93 $13,860,000.00
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 13

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F9 · kind: On October 8, 2018, Susan Y. Kim transferred 2,000,000 shares of the Issuer's Common Stock to the Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd 8/29/18. James J. Kim and Susan Y. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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October 08, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,000,000 $6.93 $13,860,000.00
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 12

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,453,610

F9 · kind: On October 8, 2018, Susan Y. Kim transferred 2,000,000 shares of the Issuer's Common Stock to the Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd 8/29/18. James J. Kim and Susan Y. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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October 05, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,139,605 $7.16 $8,159,571.80
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 11

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F8 · kind: On October 5, 2018, the James J. Kim 2013 Qualified Annuity Trust U/A Dated 5/17/13 distributed 1,139,605 shares of the Issuer's Common Stock to John T. Kim. James J. Kim and Susan Y. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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October 05, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,139,605 $7.16 $8,159,571.80
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 10

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,453,610

F7 · kind: On October 5, 2018, the James J. Kim 2013 Qualified Annuity Trust U/A Dated 5/17/13 distributed 1,139,605 shares of the Issuer's Common Stock to Susan Y. Kim. James J. Kim and Susan Y. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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October 05, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,139,605 $7.16 $8,159,571.80
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 9

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F7 · kind: On October 5, 2018, the James J. Kim 2013 Qualified Annuity Trust U/A Dated 5/17/13 distributed 1,139,605 shares of the Issuer's Common Stock to Susan Y. Kim. James J. Kim and Susan Y. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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September 21, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 941,223 $7.82 $7,360,363.86
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 8

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F6 · kind: On September 21, 2018, the James J. Kim 2013 Qualified Annuity Trust U/A Dated 5/17/13 distributed 941,223 shares of the Issuer's Common Stock to James J. Kim. James J. Kim and Susan Y. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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September 07, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,470,150 $7.86 $19,415,379.00
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 7

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F5 · kind: On September 7, 2018, James J. Kim transferred 2,470,150 shares of the Issuer's Common Stock to the James J. Kim 2018-1 Qualified Annuity Trust U/A dtd 8/30/18. James J. Kim and Susan Y. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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August 16, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 560,450 $8.90 $4,988,005.00
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 6

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,453,610

F4 · kind: On August 16, 2018, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated 3/16/15 distributed 560,450 shares of the Company's Common Stock to Susan Y. Kim. Susan Y. Kim and John T. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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August 16, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 560,450 $8.90 $4,988,005.00
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 5

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F4 · kind: On August 16, 2018, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated 3/16/15 distributed 560,450 shares of the Company's Common Stock to Susan Y. Kim. Susan Y. Kim and John T. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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May 01, 2018 Filed May 3, 2018 22:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $8.51 $0.00
Disclosure

SEC source: 0001209191-18-027827 · doc4.xml · derivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Amkor Technology Inc. Common Stock · 20,000 shares

Expires 2028-05-01

F4 · derivative.exercise_date: These options vest 100% on the earlier of the first anniversary of the grant date, or the date of the first annual meeting of stockholders following the grant date

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May 01, 2018 Filed May 3, 2018 22:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantCommon Stock 4,700 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-027827 · doc4.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,075,500

F1 · shares: These are restricted shares which vest 100% on the earlier of the first anniversary of the grant date, or the date of the first annual meeting of stockholders following the grant date.

F2 · balance_after: Off the 6,075,500 common shares owned directly, 4,700 are restricted shares subject to risk of forfeiture until fully vested as described in footnote (1).

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March 23, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,789,775 $10.64 $19,043,206.00
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 4

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F3 · kind: On March 23, 2018, John T. Kim transferred 1,789,775 shares of the Issuer's Common Stock to the Qualified Annuity Trust under the John T. Kim 2018 Irrevocable Trust Agreement dated 2/6/18. Susan Y. Kim and John T. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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March 13, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,779,777 $11.42 $31,745,053.34
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 3

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F2 · kind: On March 13, 2018, the Susan Y. Kim 2012 Irrevocable Trust dated 7/26/12 distributed 2,779,777 shares to the Susan Y. Kim Family Trust under the Susan Y. Kim 2012 Irrevocable Trust dated 7/26/12. Susan Y. Kim and John T. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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March 13, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,779,777 $11.42 $31,745,053.34
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 2

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F2 · kind: On March 13, 2018, the Susan Y. Kim 2012 Irrevocable Trust dated 7/26/12 distributed 2,779,777 shares to the Susan Y. Kim Family Trust under the Susan Y. Kim 2012 Irrevocable Trust dated 7/26/12. Susan Y. Kim and John T. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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February 21, 2018 Filed Feb 14, 2019 22:18 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 63,880 $10.11 $645,826.80
Disclosure

SEC source: 0000899243-19-003646 · doc5.xml · nonDerivative · entry 1

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 34,581,825

F1 · kind: On February 21, 2018, the James J. Kim 2014 Qualified Annuity Trust U/A dated 10/13/14 distributed 63,880 shares to James J. Kim. James J. Kim and Susan Y. Kim are co-trustees.

F10 · balance_after: 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, or for any other purpose.

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November 15, 2017 Filed Feb 14, 2018 17:52 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,661,294 $10.66 $17,709,394.04
Disclosure

SEC source: 0000899243-18-003808 · doc5.xml · nonDerivative · entry 6

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,804,501

F4 · kind: On November 15, 2017, the Susan Y. Kim 2012 Irrevocable Trust dated July 26, 2012 distributed 1,661,294 shares to Susan Y. Kim. Susan Y. Kim and John T. Kim are co-trustees.

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November 15, 2017 Filed Feb 14, 2018 17:52 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,661,294 $10.66 $17,709,394.04
Disclosure

SEC source: 0000899243-18-003808 · doc5.xml · nonDerivative · entry 5

KIM SUSAN Y · CIK 0001158922 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 32,166,663

F4 · kind: On November 15, 2017, the Susan Y. Kim 2012 Irrevocable Trust dated July 26, 2012 distributed 1,661,294 shares to Susan Y. Kim. Susan Y. Kim and John T. Kim are co-trustees.

F5 · balance_after: 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, or for any other purpose.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.