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person · Reporting owner

KIM JOHN T

Disclosed activity across 1 company

Tapewire entity
66277
SEC CIK
0001158926

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
AMKOR TECHNOLOGY, INC.AMKR · Entity 348110% owner · Member of 10% owner group (6)February 12, 2026February 17, 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 February 12, 2026 · Filed February 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy 915 Investments, LP29,594,980 Reported balance After 2026-02-12 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2026-02-12 · Sale · Disposed 10,000,000 · Balance 29,594,980

F1: On February 12, 2026, 915 Investments, LP sold 10,000,000 shares of Common Stock of Amkor Technology, Inc. (the "Issuer") pursuant to an underwritten secondary offering. The Reporting Person is the general partner of 915 Investments, LP.

F2: The Reporting Person is (i) a trustee of family trusts for the benefit of his immediate family members (other than Grantor Retained Annuity Trusts ("GRATS") which own 9,846,944 shares of the Issuer's Common Stock, (ii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,253,250 shares of the Issuer's Common Stock, (iii) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock (iv) a manager of a limited liability company being treated as a corporation for purposes of Section 16 which owns 16,710,668 shares of the Issuer's Common Stock

F3: (continued from Footnote 2) (v) a general partner of a limited partnership which owns 29,594,980 shares of the Issuer's Common Stock and (vi) as referenced in Footnote 4, 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.

F4: 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-derivativeDirect5,594,489 Reported balance Holding disclosure · report date 2026-02-12 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 5,594,489

Common StockSEC Table I · non-derivativeIndirectBy own GRATs1,253,250 Reported balance Holding disclosure · report date 2026-02-12 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 1,253,250

F2: The Reporting Person is (i) a trustee of family trusts for the benefit of his immediate family members (other than Grantor Retained Annuity Trusts ("GRATS") which own 9,846,944 shares of the Issuer's Common Stock, (ii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,253,250 shares of the Issuer's Common Stock, (iii) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock (iv) a manager of a limited liability company being treated as a corporation for purposes of Section 16 which owns 16,710,668 shares of the Issuer's Common Stock

F3: (continued from Footnote 2) (v) a general partner of a limited partnership which owns 29,594,980 shares of the Issuer's Common Stock and (vi) as referenced in Footnote 4, 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.

F4: 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 (other than GRAT & Rev. Trust)9,846,944 Reported balance Holding disclosure · report date 2026-02-12 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 9,846,944

F2: The Reporting Person is (i) a trustee of family trusts for the benefit of his immediate family members (other than Grantor Retained Annuity Trusts ("GRATS") which own 9,846,944 shares of the Issuer's Common Stock, (ii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,253,250 shares of the Issuer's Common Stock, (iii) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock (iv) a manager of a limited liability company being treated as a corporation for purposes of Section 16 which owns 16,710,668 shares of the Issuer's Common Stock

F3: (continued from Footnote 2) (v) a general partner of a limited partnership which owns 29,594,980 shares of the Issuer's Common Stock and (vi) as referenced in Footnote 4, 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.

F4: 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 Sujochil, LP19,484,809 Reported balance Holding disclosure · report date 2026-02-12 · row 5 Holding and transaction disclosures are not merged.
1 source row

Row 5 · Balance 19,484,809

F2: The Reporting Person is (i) a trustee of family trusts for the benefit of his immediate family members (other than Grantor Retained Annuity Trusts ("GRATS") which own 9,846,944 shares of the Issuer's Common Stock, (ii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,253,250 shares of the Issuer's Common Stock, (iii) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock (iv) a manager of a limited liability company being treated as a corporation for purposes of Section 16 which owns 16,710,668 shares of the Issuer's Common Stock

F3: (continued from Footnote 2) (v) a general partner of a limited partnership which owns 29,594,980 shares of the Issuer's Common Stock and (vi) as referenced in Footnote 4, 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.

F4: 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 Kim Capital Partners - KCP, LLC16,710,668 Reported balance Holding disclosure · report date 2026-02-12 · row 6 Holding and transaction disclosures are not merged.
1 source row

Row 6 · Balance 16,710,668

F2: The Reporting Person is (i) a trustee of family trusts for the benefit of his immediate family members (other than Grantor Retained Annuity Trusts ("GRATS") which own 9,846,944 shares of the Issuer's Common Stock, (ii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,253,250 shares of the Issuer's Common Stock, (iii) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock (iv) a manager of a limited liability company being treated as a corporation for purposes of Section 16 which owns 16,710,668 shares of the Issuer's Common Stock

F3: (continued from Footnote 2) (v) a general partner of a limited partnership which owns 29,594,980 shares of the Issuer's Common Stock and (vi) as referenced in Footnote 4, 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.

F4: 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 2026-02-12 · row 7 Holding and transaction disclosures are not merged.
1 source row

Row 7 · Balance 3,789,479

F2: The Reporting Person is (i) a trustee of family trusts for the benefit of his immediate family members (other than Grantor Retained Annuity Trusts ("GRATS") which own 9,846,944 shares of the Issuer's Common Stock, (ii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,253,250 shares of the Issuer's Common Stock, (iii) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock (iv) a manager of a limited liability company being treated as a corporation for purposes of Section 16 which owns 16,710,668 shares of the Issuer's Common Stock

F3: (continued from Footnote 2) (v) a general partner of a limited partnership which owns 29,594,980 shares of the Issuer's Common Stock and (vi) as referenced in Footnote 4, 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.

F4: 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.

F5: 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.

Filing footnotes · ownership attribution and instrument terms

F1: On February 12, 2026, 915 Investments, LP sold 10,000,000 shares of Common Stock of Amkor Technology, Inc. (the "Issuer") pursuant to an underwritten secondary offering. The Reporting Person is the general partner of 915 Investments, LP.

F2: The Reporting Person is (i) a trustee of family trusts for the benefit of his immediate family members (other than Grantor Retained Annuity Trusts ("GRATS") which own 9,846,944 shares of the Issuer's Common Stock, (ii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,253,250 shares of the Issuer's Common Stock, (iii) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock (iv) a manager of a limited liability company being treated as a corporation for purposes of Section 16 which owns 16,710,668 shares of the Issuer's Common Stock

F3: (continued from Footnote 2) (v) a general partner of a limited partnership which owns 29,594,980 shares of the Issuer's Common Stock and (vi) as referenced in Footnote 4, 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.

F4: 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.

F5: 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.

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
April 28, 2020 Filed Apr 30, 2020 17:22 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionDirector Stock Option (Right-to-Buy) · Derivative 20,000 $0.00 Strike: $7.71 $0.00
Disclosure

SEC source: 0001209191-20-026252 · doc4.xml · derivative · entry 4

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,000 shares

Expires 2020-05-03

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: These options vest over three years: 1/3 of the option shares become exercisable on each of the first three anniversaries of the grant date.

Read SEC document
April 28, 2020 Filed Apr 30, 2020 17:22 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 20,000 $7.71 $154,200.00
Disclosure

SEC source: 0001209191-20-026252 · doc4.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,491,453

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 16, 2020 Filed Feb 16, 2021 13:49 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GiftCommon Stock 15,641 $7.47 $116,838.27
Disclosure

SEC source: 0000899243-21-006549 · doc5.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,056,223

F1 · 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.

F2 · balance_after: On July 1, 2020, 278,833 shares of the Issuer's Common Stock were distributed by the Qualified Annuity Trust under the John T. Kim 2018 Irrevocable Trust Agreement Dated February 6, 2018 to the reporting person. Susan Y. Kim and John T. Kim are co-trustees of the trust. The aforementioned trust 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 his capacity as a co-trustee of the trust, the reporting person is being treated as having a pecuniary interest in all of the shares held by such trust.

F3 · balance_after: (Continued From Footnote 2) Accordingly, the transfer between the reporting person and such trust results in a mere change from indirect ownership to direct ownership. Such transfer is therefore not reported on this Form 5. On December 31, 2020, such grantor retained annuity trusts created by the reporting person held 1,202,942 shares of the Issuer's Common Stock.

F4 · balance_after: Includes options to acquire 100,000 shares of the Issuer's Common Stock.

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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: 0000899243-20-004602 · doc5.xml · nonDerivative · entry 3

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 47,485,506

F2 · 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.

F3 · 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 18, 2019 00:11 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: 0001209191-19-031182 · doc4.xml · derivative · entry 4

KIM JOHN T · CIK 0001158926 · 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 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.

Read SEC document
May 15, 2019 Filed May 18, 2019 00:11 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantCommon Stock 8,207 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-031182 · doc4.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,147,812

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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May 15, 2019 Filed May 31, 2019 20:56 UTC Amendment 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: 0001209191-19-033686 · doc4a.xml · derivative · entry 4

KIM JOHN T · CIK 0001158926 · 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 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

Read SEC document
May 15, 2019 Filed May 31, 2019 20:56 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantCommon Stock 8,207 $0.00 $0.00
Disclosure

SEC source: 0001209191-19-033686 · doc4a.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,455,812

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.

Read SEC document
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: 0000899243-20-004602 · doc5.xml · nonDerivative · entry 2

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,405,452

F1 · 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.

F3 · 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.

Read SEC document
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: 0000899243-20-004602 · doc5.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 47,485,506

F1 · 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.

F3 · 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.

Read SEC document
February 15, 2019 Filed Feb 20, 2019 17:45 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantEmployee Stock Option (Right-to-Buy) · Derivative 175,000 $0.00 Strike: $9.48 $0.00
Disclosure

SEC source: 0001209191-19-011421 · doc4.xml · derivative · entry 3

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,000

Underlying: Amkor Technology, Inc., Common Stock · 175,000 shares

Expires 2029-02-15

F3 · derivative.exercise_date: This option grant vests as follows: 25% of the shares vest on the first anniversary of the grant date and 1/16th of the option vests each quarter thereafter, such that 100% of the option will be vested on the fourth anniversary of the grant date.

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October 05, 2018 Filed Feb 14, 2019 22:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,139,605 $7.16 $8,159,571.80
Disclosure

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 10

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,674,640

F6 · 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.

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.

Read SEC document
October 05, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,139,605 $7.16 $8,159,571.80
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 10

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,814,245

F6 · 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.

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.

F8 · balance_after: This Form 5 amends the Form 5 filed by the reporting person on February 14, 2019. This amendment is to correct the direct holdings of the reporting person only. For readability, the entire filing is being amended but only those line item noted with footnote 8 have been changed, and solely to update the direct holdings in Column 5.

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August 16, 2018 Filed Feb 14, 2019 22:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 560,450 $8.90 $4,988,005.00
Disclosure

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 9

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F5 · 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.

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.

Read SEC document
August 16, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 560,450 $8.90 $4,988,005.00
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 9

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F5 · 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.

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.

Read SEC document
July 09, 2018 Filed Feb 14, 2019 22:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 7,828,682 $8.85 $69,283,835.70
Disclosure

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 8

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F4 · kind: On July 9, 2018, the John T. Kim 2012 Irrevocable Trust U/A dated 12/11/12 transferred 7,828,682 shares of the Issuer's Common Stock to the Family Trust under the John T. Kim 2012 Irrevocable Trust dated 12/11/12. John T. Kim and James J. Kim are co-trustees.

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.

Read SEC document
July 09, 2018 Filed Feb 14, 2019 22:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 7,828,682 $8.85 $69,283,835.70
Disclosure

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 7

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F4 · kind: On July 9, 2018, the John T. Kim 2012 Irrevocable Trust U/A dated 12/11/12 transferred 7,828,682 shares of the Issuer's Common Stock to the Family Trust under the John T. Kim 2012 Irrevocable Trust dated 12/11/12. John T. Kim and James J. Kim are co-trustees.

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.

Read SEC document
July 09, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 7,828,682 $8.85 $69,283,835.70
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 8

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F4 · kind: On July 9, 2018, the John T. Kim 2012 Irrevocable Trust U/A dated 12/11/12 transferred 7,828,682 shares of the Issuer's Common Stock to the Family Trust under the John T. Kim 2012 Irrevocable Trust dated 12/11/12. John T. Kim and James J. Kim are co-trustees.

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.

Read SEC document
July 09, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 7,828,682 $8.85 $69,283,835.70
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 7

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F4 · kind: On July 9, 2018, the John T. Kim 2012 Irrevocable Trust U/A dated 12/11/12 transferred 7,828,682 shares of the Issuer's Common Stock to the Family Trust under the John T. Kim 2012 Irrevocable Trust dated 12/11/12. John T. Kim and James J. Kim are co-trustees.

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.

Read SEC document
April 04, 2018 Filed Feb 14, 2019 22:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,138,382 $9.63 $20,592,618.66
Disclosure

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 6

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,674,640

F3 · kind: On April 4, 2018, the John T. Kim 2012 Irrevocable Trust U/A dated 12/11/12 transferred 2,138,382 shares of the Issuer's Common Stock to John T. Kim. John T. Kim and James J. Kim are co-trustees.

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.

Read SEC document
April 04, 2018 Filed Feb 14, 2019 22:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,138,382 $9.63 $20,592,618.66
Disclosure

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 5

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F3 · kind: On April 4, 2018, the John T. Kim 2012 Irrevocable Trust U/A dated 12/11/12 transferred 2,138,382 shares of the Issuer's Common Stock to John T. Kim. John T. Kim and James J. Kim are co-trustees.

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.

Read SEC document
April 04, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,138,382 $9.63 $20,592,618.66
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 6

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,814,245

F3 · kind: On April 4, 2018, the John T. Kim 2012 Irrevocable Trust U/A dated 12/11/12 transferred 2,138,382 shares of the Issuer's Common Stock to John T. Kim. John T. Kim and James J. Kim are co-trustees.

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.

F8 · balance_after: This Form 5 amends the Form 5 filed by the reporting person on February 14, 2019. This amendment is to correct the direct holdings of the reporting person only. For readability, the entire filing is being amended but only those line item noted with footnote 8 have been changed, and solely to update the direct holdings in Column 5.

Read SEC document
April 04, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,138,382 $9.63 $20,592,618.66
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 5

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F3 · kind: On April 4, 2018, the John T. Kim 2012 Irrevocable Trust U/A dated 12/11/12 transferred 2,138,382 shares of the Issuer's Common Stock to John T. Kim. John T. Kim and James J. Kim are co-trustees.

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.

Read SEC document
March 23, 2018 Filed Feb 14, 2019 22:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,789,775 $10.64 $19,043,206.00
Disclosure

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 4

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F2 · 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.

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.

Read SEC document
March 23, 2018 Filed Feb 14, 2019 22:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,789,775 $10.64 $19,043,206.00
Disclosure

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 3

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,674,640

F2 · 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.

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.

Read SEC document
March 23, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,789,775 $10.64 $19,043,206.00
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 4

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F2 · 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.

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.

Read SEC document
March 23, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,789,775 $10.64 $19,043,206.00
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 3

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,814,245

F2 · 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.

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.

F8 · balance_after: This Form 5 amends the Form 5 filed by the reporting person on February 14, 2019. This amendment is to correct the direct holdings of the reporting person only. For readability, the entire filing is being amended but only those line item noted with footnote 8 have been changed, and solely to update the direct holdings in Column 5.

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

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 2

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F1 · 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.

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.

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

SEC source: 0000899243-19-003640 · doc5.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F1 · 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.

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.

Read SEC document
March 13, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,779,777 $11.42 $31,745,053.34
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 2

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F1 · 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.

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.

Read SEC document
March 13, 2018 Filed Mar 25, 2019 13:00 UTC Amendment AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,779,777 $11.42 $31,745,053.34
Disclosure

SEC source: 0000899243-19-008826 · doc5a.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 48,593,506

F1 · 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.

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.

Read SEC document
November 15, 2017 Filed Feb 14, 2018 17:48 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,661,294 $10.66 $17,709,394.04
Disclosure

SEC source: 0000899243-18-003803 · doc5.xml · nonDerivative · entry 4

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 49,153,956

F3 · 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.

F4 · 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.

Read SEC document
August 11, 2017 Filed Feb 14, 2018 17:48 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 480,540 $8.63 $4,147,060.20
Disclosure

SEC source: 0000899243-18-003803 · doc5.xml · nonDerivative · entry 3

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 49,153,956

F2 · kind: On August 11, 2017, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated March 16, 2015 distributed 480,540 shares of the Company's Common Stock to Susan Y. Kim. Susan Y. Kim and John T. Kim are co-trustees.

F4 · 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.

Read SEC document
March 02, 2017 Filed Feb 14, 2018 17:48 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,687,829 $10.21 $17,232,734.09
Disclosure

SEC source: 0000899243-18-003803 · doc5.xml · nonDerivative · entry 2

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 49,153,956

F1 · kind: On March 2, 2017, the John T. Kim Irrevocable Trust U/A Dated 12/11/12 distributed 1,687,829 shares to the John T. Kim Trust of December 31, 1987. John T. Kim and James J. Kim are trustees of the John T. Kim Irrevocable Trust U/A Dated 12/11/12. John T. Kim is the sole trustee of the John T. Kim Trust of December 31, 1987.

F4 · 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.

Read SEC document
March 02, 2017 Filed Feb 14, 2018 17:48 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,687,829 $10.21 $17,232,734.09
Disclosure

SEC source: 0000899243-18-003803 · doc5.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 49,153,956

F1 · kind: On March 2, 2017, the John T. Kim Irrevocable Trust U/A Dated 12/11/12 distributed 1,687,829 shares to the John T. Kim Trust of December 31, 1987. John T. Kim and James J. Kim are trustees of the John T. Kim Irrevocable Trust U/A Dated 12/11/12. John T. Kim is the sole trustee of the John T. Kim Trust of December 31, 1987.

F4 · 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.

Read SEC document
February 27, 2017 Filed Mar 1, 2017 23:39 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantEmployee Stock Option (Right-to-Buy) · Derivative 175,000 $0.00 Strike: $9.86 $0.00
Disclosure

SEC source: 0001209191-17-016117 · doc4.xml · derivative · entry 3

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,000

Underlying: Amkor Technology, Inc., Common Stock · 175,000 shares

Expires 2027-02-27

F3 · derivative.exercise_date: This option grant vests as follows: 25% of the shares vest on the first anniversary of the grant date and 1/16th of the option vests each quarter thereafter, such that 100% of the option will be vested on the fourth anniversary of the grant date.

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January 12, 2017 Filed Jan 17, 2017 21:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 PurchaseCommon Stock 19,484,809 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-17-001323 · doc4.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as general partner

Disclosed balance after: 19,484,809

F1 · kind: On January 12, 2017, the David D. Kim Trust of 12/31/87 sold 19,484,809 shares of the Company's Common Stock to a newly created Pennsylvania limited partnership, Sujochil, LP (the "Partnership"), at a price of $10.8984 per share. Susan Y. Kim and John T. Kim are general partners of the Partnership. The limited partners of the Partnership are John T. Kim, Susan Y. Kim, two irrevocable trusts created by Susan Y. Kim for her descendants and two irrevocable trusts created by John T. Kim for his descendants. Susan Y. Kim and John T. Kim are the co-trustees of all four trusts.

F1 · price: On January 12, 2017, the David D. Kim Trust of 12/31/87 sold 19,484,809 shares of the Company's Common Stock to a newly created Pennsylvania limited partnership, Sujochil, LP (the "Partnership"), at a price of $10.8984 per share. Susan Y. Kim and John T. Kim are general partners of the Partnership. The limited partners of the Partnership are John T. Kim, Susan Y. Kim, two irrevocable trusts created by Susan Y. Kim for her descendants and two irrevocable trusts created by John T. Kim for his descendants. Susan Y. Kim and John T. Kim are the co-trustees of all four trusts.

F1 · balance_after: On January 12, 2017, the David D. Kim Trust of 12/31/87 sold 19,484,809 shares of the Company's Common Stock to a newly created Pennsylvania limited partnership, Sujochil, LP (the "Partnership"), at a price of $10.8984 per share. Susan Y. Kim and John T. Kim are general partners of the Partnership. The limited partners of the Partnership are John T. Kim, Susan Y. Kim, two irrevocable trusts created by Susan Y. Kim for her descendants and two irrevocable trusts created by John T. Kim for his descendants. Susan Y. Kim and John T. Kim are the co-trustees of all four trusts.

F2 · 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.

Read SEC document
November 03, 2016 Filed Feb 15, 2017 20:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 1,414,250 $10.40 $14,708,200.00
Disclosure

SEC source: 0000899243-17-004202 · doc5.xml · nonDerivative · entry 4

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 25,824,640

F3 · kind: On November 3, 2016, the Susan Y. Kim 2012 Irrevocable Trust U/A Dated 7/26/12 distributed 1,414,250 shares of the Company's Common Stock to Susan Y. Kim. Susan T. Kim and John T. Kim are trustees of the trust.

F4 · 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.

Read SEC document
July 18, 2016 Filed Feb 15, 2017 20:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 568,780 $6.09 $3,463,870.20
Disclosure

SEC source: 0000899243-17-004202 · doc5.xml · nonDerivative · entry 3

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 25,824,640

F2 · kind: On July 18, 2016, the Susan Y. Kim 2015 Irrevocable Trust U/A Dated 3/16/15 distributed 568,780 shares of the Company's Common Stock to Susan Y. Kim. Susan Y. Kim and John T. Kim are co-trustees.

F4 · 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.

Read SEC document
February 01, 2016 Filed Feb 15, 2017 20:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,413,880 $5.96 $14,386,724.80
Disclosure

SEC source: 0000899243-17-004202 · doc5.xml · nonDerivative · entry 2

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 25,824,640

F1 · kind: On February 1, 2016, the John T. Kim Irrevocable Trust U/A Dated 12/11/12 distributed 2,413,880 shares to the John T. Kim Trust of December 31, 1987. John T. Kim and James J. Kim are trustees of the John T. Kim Irrevocable Trust U/A Dated 12/11/12. John T. Kim is the sole trustee of the John T. Kim Trust of December 31, 1987.

F4 · 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 01, 2016 Filed Feb 15, 2017 20:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 OtherCommon Stock 2,413,880 $5.96 $14,386,724.80
Disclosure

SEC source: 0000899243-17-004202 · doc5.xml · nonDerivative · entry 1

KIM JOHN T · CIK 0001158926 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 25,824,640

F1 · kind: On February 1, 2016, the John T. Kim Irrevocable Trust U/A Dated 12/11/12 distributed 2,413,880 shares to the John T. Kim Trust of December 31, 1987. John T. Kim and James J. Kim are trustees of the John T. Kim Irrevocable Trust U/A Dated 12/11/12. John T. Kim is the sole trustee of the John T. Kim Trust of December 31, 1987.

F4 · 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.