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Nasdaq · USD

AMKR

AMKOR TECHNOLOGY, INC.

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3481
SEC CIK
0001047127
Parsed reports
904

Last 12 months

Inside the activity.

0 purchase rows · 41 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202502
Dec 202506
Jan 202602
Feb 202608
Mar 202601
Apr 202601
May 202608
Jun 202603
Jul 202603
Aug 202605
Sep 202601
Oct 202601

Latest available

Insider transactions

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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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
June 18, 2020 Filed Jun 18, 2020 23:27 UTC SaleCommon Stock 4,500 $12.15 $54,675.00
Disclosure

SEC source: 0001209191-20-037717 · doc4.xml · nonDerivative · entry 2

Faust Megan · CIK 0001684564 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,219

F1 · kind: The sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on April 30, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from 12.09 to 12.26.

Read SEC document
June 18, 2020 Filed Jun 18, 2020 23:27 UTC Exercise / conversionCommon Stock 4,500 $8.88 $39,960.00
Disclosure

SEC source: 0001209191-20-037717 · doc4.xml · nonDerivative · entry 1

Faust Megan · CIK 0001684564 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,719

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
June 05, 2020 Filed Jun 8, 2020 23:35 UTC
Rutten Guillaume Marie JeanExecutive Vice President
Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 7,838 $0.00 Strike: $9.86 $0.00
Disclosure

SEC source: 0001209191-20-035133 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,412

Underlying: Amkor Technology, Inc., Common Stock · 7,838 shares

Expires 2027-02-27

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.

F1 · derivative.exercise_date: The stock options will vest over four years; 25% on the first anniversary of the grant date and 1/16 of the option will vest each quarter thereafter so that at the end of the fourth year, 100% of the option will be vested.

Read SEC document
June 05, 2020 Filed Jun 8, 2020 23:35 UTC
Rutten Guillaume Marie JeanExecutive Vice President
SaleAmkor Technology, Inc., Common Stock 7,838 $12.85 $100,718.30
Disclosure

SEC source: 0001209191-20-035133 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Read SEC document
June 05, 2020 Filed Jun 8, 2020 23:35 UTC
Rutten Guillaume Marie JeanExecutive Vice President
Exercise / conversionAmkor Technology, Inc., Common Stock 7,838 $9.86 $77,282.68
Disclosure

SEC source: 0001209191-20-035133 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,838

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
June 03, 2020 Filed Jun 4, 2020 00:19 UTC Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 4,500 $0.00 Strike: $8.88 $0.00
Disclosure

SEC source: 0001209191-20-034321 · doc4.xml · derivative · entry 3

Faust Megan · CIK 0001684564 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,500

Underlying: Common Stock · 4,500 shares

Expires 2026-09-12

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: The stock options will vest over four years; 25% on the first anniversary of the grant date and 1/16 of the option will vest each quarter thereafter so that at the end of the fourth year, 100% of the option will be vested.

Read SEC document
June 03, 2020 Filed Jun 4, 2020 00:19 UTC SaleCommon Stock 4,500 $11.07 $49,815.00
Disclosure

SEC source: 0001209191-20-034321 · doc4.xml · nonDerivative · entry 2

Faust Megan · CIK 0001684564 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,219

F1 · kind: The sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on April 30, 2020.

Read SEC document
June 03, 2020 Filed Jun 4, 2020 00:19 UTC Exercise / conversionCommon Stock 4,500 $8.88 $39,960.00
Disclosure

SEC source: 0001209191-20-034321 · doc4.xml · nonDerivative · entry 1

Faust Megan · CIK 0001684564 · CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,719

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
May 27, 2020 Filed May 28, 2020 14:33 UTC
Kelley Stephen DouglasDirector · President and CEO
Tax withholdingCommon Stock 5,425 $10.97 $59,485.13
Disclosure

SEC source: 0001209191-20-032518 · doc4.xml · nonDerivative · entry 1

Kelley Stephen Douglas · CIK 0001443674 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,200

Read SEC document
May 26, 2020 Filed Feb 16, 2021 13:50 UTC
KIM SUSAN YDirector · 10% owner · See Exhibit 99.1
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.

Read SEC document
May 19, 2020 Filed May 20, 2020 19:57 UTC GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030850 · doc4.xml · derivative · entry 2

CHURCHILL WINSTON J · CIK 0000923792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2020-05-19

F2 · 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.

Read SEC document
May 19, 2020 Filed May 20, 2020 19:57 UTC GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030850 · doc4.xml · nonDerivative · entry 1

CHURCHILL WINSTON J · CIK 0000923792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,613

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
May 19, 2020 Filed May 20, 2020 21:50 UTC
KIM SUSAN YDirector · 10% owner · Exhibit 99.1
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

Read SEC document
May 19, 2020 Filed May 20, 2020 21:50 UTC
KIM SUSAN YDirector · 10% owner · Exhibit 99.1
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.

Read SEC document
May 19, 2020 Filed May 20, 2020 20:03 UTC GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030857 · doc4.xml · derivative · entry 2

WATSON DAVID N · CIK 0001276908 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-05-19

F2 · 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.

Read SEC document
May 19, 2020 Filed May 20, 2020 20:03 UTC GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030857 · doc4.xml · nonDerivative · entry 1

WATSON DAVID N · CIK 0001276908 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,489

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
May 19, 2020 Filed May 20, 2020 20:01 UTC
Tily Gil C.Director
GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030856 · doc4.xml · derivative · entry 2

Tily Gil C. · CIK 0001405591 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-05-19

F2 · 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.

Read SEC document
May 19, 2020 Filed May 20, 2020 20:01 UTC
Tily Gil C.Director
GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030856 · doc4.xml · nonDerivative · entry 1

Tily Gil C. · CIK 0001405591 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 97,569

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
May 19, 2020 Filed May 20, 2020 20:00 UTC GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030855 · doc4.xml · derivative · entry 2

Morse Robert Randolph · CIK 0001569086 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-05-19

F2 · 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.

Read SEC document
May 19, 2020 Filed May 20, 2020 20:00 UTC GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030855 · doc4.xml · nonDerivative · entry 1

Morse Robert Randolph · CIK 0001569086 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,489

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
May 19, 2020 Filed May 20, 2020 20:00 UTC GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030853 · doc4.xml · derivative · entry 2

McCourt MaryFrances · CIK 0001730724 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-05-19

F2 · 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.

Read SEC document
May 19, 2020 Filed May 20, 2020 20:00 UTC GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030853 · doc4.xml · nonDerivative · entry 1

McCourt MaryFrances · CIK 0001730724 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,998

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
May 19, 2020 Filed May 20, 2020 19:59 UTC GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030852 · doc4.xml · derivative · entry 2

Liao Daniel JL · CIK 0001775769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-05-19

F2 · 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.

Read SEC document
May 19, 2020 Filed May 20, 2020 19:59 UTC GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030852 · doc4.xml · nonDerivative · entry 1

Liao Daniel JL · CIK 0001775769 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,313

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
May 19, 2020 Filed May 20, 2020 19:54 UTC GrantDirector Stock Option (Right-to-Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030848 · doc4.xml · derivative · entry 2

Carolin Roger Anthony · CIK 0001351909 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-05-19

F2 · 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.

Read SEC document
May 19, 2020 Filed May 20, 2020 19:54 UTC GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030848 · doc4.xml · nonDerivative · entry 1

Carolin Roger Anthony · CIK 0001351909 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,489

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
May 19, 2020 Filed May 20, 2020 19:48 UTC GrantDirector Stock Option (Right to Buy) · Derivative 20,000 $0.00 Strike: $9.83 $0.00
Disclosure

SEC source: 0001209191-20-030841 · doc4.xml · derivative · entry 2

ALEXANDER DOUGLAS A · CIK 0001195858 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-05-19

F2 · 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.

Read SEC document
May 19, 2020 Filed May 20, 2020 19:48 UTC GrantCommon Stock 6,106 $0.00 $0.00
Disclosure

SEC source: 0001209191-20-030841 · doc4.xml · nonDerivative · entry 1

ALEXANDER DOUGLAS A · CIK 0001195858 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,998

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 28, 2020 Filed Apr 30, 2020 17:22 UTC
KIM JOHN TDirector · 10% owner · Exhibit 99.1
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
KIM JOHN TDirector · 10% owner · Exhibit 99.1
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 13:50 UTC
KIM JAMES JDirector · 10% owner · See Exhibit 99.1
GiftCommon Stock 46,923 $7.47 $350,514.81
Disclosure

SEC source: 0000899243-21-006553 · doc5.xml · nonDerivative · entry 1

KIM JAMES J · CIK 0001158839 · Director · 10% owner · See Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 6,417,888

F1 · balance_after: 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.

F9 · balance_after: 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 the reporting person. James J. Kim and Susan Y. Kim are co-trustees of the trust. On May 26, 2020, the reporting person 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 of the trust. 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 the reporting person

F10 · balance_after: (Continued From Footnote 9) James J. Kim and Susan Y. Kim are co-trustees of the trust. 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 the reporting person. James J. Kim and Susan Y. Kim are co-trustees of the trust. Pursuant to the Form 5 instructions, in his 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 6,417,888 shares of the Issuer's Common Stock.

F11 · balance_after: The reporting person may be deemed to indirectly own 6,417,888 shares of the Issuer's Common Stock held by grantor retained annuity trusts (see footnote 8) and 49,594,980 shares of the Issuer's Common Stock held by a limited partnership 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.

Read SEC document
March 16, 2020 Filed Feb 16, 2021 13:50 UTC
KIM SUSAN YDirector · 10% owner · See Exhibit 99.1
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.

Read SEC document
March 16, 2020 Filed Feb 16, 2021 13:50 UTC
KIM SUSAN YDirector · 10% owner · See Exhibit 99.1
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.

Read SEC document
March 16, 2020 Filed Feb 16, 2021 13:49 UTC
KIM JOHN T10% owner · Exhibit 99.1
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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March 16, 2020 Filed Feb 16, 2021 13:47 UTC
KIM DAVID DExhibit 99.1
GiftCommon Stock 15,641 $7.47 $116,838.27
Disclosure

SEC source: 0000899243-21-006546 · doc5.xml · nonDerivative · entry 1

KIM DAVID D · CIK 0001158924 · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,641

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.

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March 16, 2020 Filed Feb 16, 2021 13:46 UTC GiftCommon Stock 46,923 $7.47 $350,514.81
Disclosure

SEC source: 0000899243-21-006541 · doc5.xml · nonDerivative · entry 2

James J. Kim 2014 Qualified Annuity Trust · CIK 0001631983 · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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.

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March 09, 2020 Filed Mar 9, 2020 20:49 UTC
ROGERS MARK NEVP & General Counsel
PurchaseCommon Stock 2,500 $9.14 $22,850.00
Disclosure

SEC source: 0001209191-20-017309 · doc4.xml · nonDerivative · entry 1

ROGERS MARK N · CIK 0001201997 · EVP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,500

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March 02, 2020 Filed Feb 16, 2021 13:50 UTC
KIM SUSAN YDirector · 10% owner · See Exhibit 99.1
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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March 02, 2020 Filed Feb 16, 2021 13:46 UTC GiftCommon Stock 91,392 $10.28 $939,509.76
Disclosure

SEC source: 0000899243-21-006541 · doc5.xml · nonDerivative · entry 1

James J. Kim 2014 Qualified Annuity Trust · CIK 0001631983 · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

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.

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February 27, 2020 Filed Feb 27, 2020 22:39 UTC
Kelley Stephen DouglasDirector · President and CEO
Tax withholdingCommon Stock 5,425 $9.99 $54,195.75
Disclosure

SEC source: 0001209191-20-013485 · doc4.xml · nonDerivative · entry 1

Kelley Stephen Douglas · CIK 0001443674 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 141,625

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February 21, 2020 Filed Feb 24, 2020 21:05 UTC SaleCommon Stock 4,700 $12.64 $59,408.00
Disclosure

SEC source: 0001209191-20-011933 · doc4.xml · nonDerivative · entry 1

CHURCHILL WINSTON J · CIK 0000923792 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,507

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December 16, 2019 Filed Feb 14, 2020 16:56 UTC
KIM JAMES JDirector · 10% owner · Exhibit 99.1
OtherCommon Stock 443,100 $12.92 $5,724,852.00
Disclosure

SEC source: 0000899243-20-004598 · doc5.xml · nonDerivative · entry 7

KIM JAMES J · CIK 0001158839 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,371,803

F4 · 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.

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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December 16, 2019 Filed Feb 14, 2020 16:56 UTC
KIM JAMES JDirector · 10% owner · Exhibit 99.1
OtherCommon Stock 443,100 $12.92 $5,724,852.00
Disclosure

SEC source: 0000899243-20-004598 · doc5.xml · nonDerivative · entry 6

KIM JAMES J · CIK 0001158839 · Director · 10% owner · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Indirect · By self as trustee

Disclosed balance after: 17,735,697

F4 · 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.

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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December 16, 2019 Filed Feb 14, 2020 17:34 UTC OtherCommon Stock 443,100 $12.92 $5,724,852.00
Disclosure

SEC source: 0000899243-20-004616 · doc5.xml · nonDerivative · entry 1

Qualified Annuity Trust under the James J. Kim 2018-1 Qualified Annuity Trust Agreement dtd 8/31/18 · CIK 0001752917 · Exhibit 99.1

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,027,050

F1 · 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.

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December 16, 2019 Filed Feb 14, 2020 17:01 UTC
KIM SUSAN YDirector · 10% owner · Exhibit 99.1
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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November 27, 2019 Filed Nov 27, 2019 21:51 UTC
Kelley Stephen DouglasDirector · President and CEO
Tax withholdingCommon Stock 5,425 $12.33 $66,890.25
Disclosure

SEC source: 0001209191-19-058354 · doc4.xml · nonDerivative · entry 1

Kelley Stephen Douglas · CIK 0001443674 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 147,050

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November 18, 2019 Filed Nov 20, 2019 21:03 UTC SaleAmkor Technology, Inc., Common Stock 40,400 $12.89 $520,756.00
Disclosure

SEC source: 0001209191-19-057422 · doc4.xml · nonDerivative · entry 1

Carolin Roger Anthony · CIK 0001351909 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Held in Trust with Spouse

Disclosed balance after: 0

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from 12.85 to 12.97, inclusive. The reporting person undertakes to provide Amkor Technology, Inc. ("Amkor"), any security holder of Amkor, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote to this Form 4.

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November 08, 2019 Filed Nov 12, 2019 16:42 UTC SaleAmkor Technology, Inc., Common Stock 12,000 $12.77 $153,240.00
Disclosure

SEC source: 0001209191-19-055934 · doc4.xml · nonDerivative · entry 1

Carolin Roger Anthony · CIK 0001351909 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,383

F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from 12.73 to 12.81.

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November 04, 2019 Filed Nov 6, 2019 21:55 UTC
Tily Gil C.Director
Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 100,000 $0.00 Strike: $9.86 $0.00
Disclosure

SEC source: 0001209191-19-055523 · doc4.xml · derivative · entry 3

Tily Gil C. · CIK 0001405591 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,000

Underlying: Amkor Technology, Inc., Common Stock · 100,000 shares

Expires 2027-02-27

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: The option, representing a right to purchase 175,000 shares was granted on February 27, 2017. 25% of the option vested on the first anniversary of the grant date, and 1/16th 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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November 04, 2019 Filed Nov 6, 2019 21:55 UTC
Tily Gil C.Director
Tax withholdingAmkor Technology, Inc., Common Stock 83,362 $13.33 $1,111,215.46
Disclosure

SEC source: 0001209191-19-055523 · doc4.xml · nonDerivative · entry 2

Tily Gil C. · CIK 0001405591 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,463

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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.