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Rutten Guillaume Marie Jean

Disclosed activity across 1 company

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25544
SEC CIK
0001596796

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
AMKOR TECHNOLOGY, INC.AMKR · Entity 3481DirectorSeptember 22, 2026September 24, 2026

Disclosed balances

About these balances

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

AMKOR TECHNOLOGY, INC.

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

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect2,619.5144 Reported balance After 2026-09-22 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-09-22 · Grant · Acquired 3.9978 · Balance 2,619.5144

F1: Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on September 22, 2026 with respect to time-vested restricted stock units ("RSUs") of Amkor Technology, Inc. (the "Issuer") granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.

Filing footnotes · ownership attribution and instrument terms

F1: Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on September 22, 2026 with respect to time-vested restricted stock units ("RSUs") of Amkor Technology, Inc. (the "Issuer") granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.

Transaction history

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

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

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 15, 2021 Filed Oct 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 10,000 $0.00 Strike: $14.17 $0.00
Disclosure

SEC source: 0001209191-21-060770 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,500

Underlying: Common Stock · 10,000 shares

Expires 2030-07-30

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.

F3 · derivative.exercise_date: This stock option (the "Option") to acquire 375,000 shares of the Issuer's common stock was granted on July 30, 2020 (the "Grant Date") and will vest in equal quarterly installments over three years, such that 100% of the Option will be vested on the third anniversary of the Grant Date.

Read SEC document
October 15, 2021 Filed Oct 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 25,000 $22.43 $560,750.00
Disclosure

SEC source: 0001209191-21-060770 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 350,000

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 13, 2021.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.30 to $22.85.The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, Amkor Technology, Inc. (the "Issuer"), or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
October 15, 2021 Filed Oct 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 10,000 $14.17 $141,700.00
Disclosure

SEC source: 0001209191-21-060770 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 375,000

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
September 15, 2021 Filed Sep 18, 2021 00:00 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 10,000 $0.00 Strike: $14.17 $0.00
Disclosure

SEC source: 0001209191-21-056759 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 272,500

Underlying: Common Stock · 10,000 shares

Expires 2030-07-30

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.

F3 · derivative.exercise_date: This stock option (the "Option") to acquire 375,000 shares of the Issuer's common stock was granted on July 30, 2020 (the "Grant Date") and will vest in equal quarterly installments over three years, such that 100% of the Option will be vested on the third anniversary of the Grant Date.

Read SEC document
September 15, 2021 Filed Sep 18, 2021 00:00 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 25,000 $28.46 $711,500.00
Disclosure

SEC source: 0001209191-21-056759 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 365,000

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 13, 2021.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.27 to $28.82.The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, Amkor Technology, Inc. (the "Issuer"), or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
September 15, 2021 Filed Sep 18, 2021 00:00 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 10,000 $14.17 $141,700.00
Disclosure

SEC source: 0001209191-21-056759 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 390,000

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
August 16, 2021 Filed Aug 18, 2021 21:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 10,000 $0.00 Strike: $14.17 $0.00
Disclosure

SEC source: 0001209191-21-052258 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 282,500

Underlying: Common Stock · 10,000 shares

Expires 2030-07-30

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.

F3 · derivative.exercise_date: This stock option (the "Option") to acquire 375,000 shares of the Issuer's common stock was granted on July 30, 2020 (the "Grant Date") and will vest in equal quarterly installments over three years, such that 100% of the Option will be vested on the third anniversary of the Grant Date.

Read SEC document
August 16, 2021 Filed Aug 18, 2021 21:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 25,000 $25.93 $648,250.00
Disclosure

SEC source: 0001209191-21-052258 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 380,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 13, 2021.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $25.73 to $26.18.The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, Amkor Technology, Inc. (the "Issuer"), or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
August 16, 2021 Filed Aug 18, 2021 21:13 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 10,000 $14.17 $141,700.00
Disclosure

SEC source: 0001209191-21-052258 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 405,000

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
July 15, 2021 Filed Jul 16, 2021 21:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 10,000 $0.00 Strike: $14.17 $0.00
Disclosure

SEC source: 0001209191-21-046964 · doc4.xml · derivative · entry 4

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 292,500

Underlying: Common Stock · 10,000 shares

Expires 2030-07-30

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.

F4 · derivative.exercise_date: This stock option (the "Option") to acquire 375,000 shares of the Issuer's common stock was granted on July 30, 2020 (the "Grant Date") and will vest in equal quarterly installments over three years, such that 100% of the Option will be vested on the third anniversary of the Grant Date.

Read SEC document
July 15, 2021 Filed Jul 16, 2021 21:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 595 $23.45 $13,952.75
Disclosure

SEC source: 0001209191-21-046964 · doc4.xml · nonDerivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 395,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2021.

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $23.19 to $23.94.The Reporting Person hereby undertakes to provide, upon request, to the staff of the SEC, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3) to this Form 4.

Read SEC document
July 15, 2021 Filed Jul 16, 2021 21:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 24,405 $22.42 $547,160.10
Disclosure

SEC source: 0001209191-21-046964 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 395,595

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2021.

F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $22.19 to $23.18. The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission (the "SEC"), Amkor Technology, Inc. (the "Issuer"), or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Read SEC document
July 15, 2021 Filed Jul 16, 2021 21:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 10,000 $14.17 $141,700.00
Disclosure

SEC source: 0001209191-21-046964 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 420,000

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 15, 2021 Filed Jun 17, 2021 21:09 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 10,000 $0.00 Strike: $14.17 $0.00
Disclosure

SEC source: 0001209191-21-041523 · doc4.xml · derivative · entry 7

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 302,500

Underlying: Common Stock · 10,000 shares

Expires 2030-07-30

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.

F6 · derivative.exercise_date: This stock option was granted on July 30, 2020 and vests as follows: the option will vest quarterly over three years at the rate of 31,250 per quarter, such that 100% will be vested on the third anniversary of the grant date.

Read SEC document
June 15, 2021 Filed Jun 17, 2021 21:09 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 912 $0.00 Strike: $9.48 $0.00
Disclosure

SEC source: 0001209191-21-041523 · doc4.xml · derivative · entry 6

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,625

Underlying: Common Stock · 912 shares

Expires 2029-02-15

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.

F5 · derivative.exercise_date: This stock option was granted on February 15, 2019 and vests as follows: 25% of the shares vest on the first anniversary of the grant date and 1/16 of the option vests each quarter thereafter, such that 100% of the option will vest on the fourth anniversary of the grant date.

Read SEC document
June 15, 2021 Filed Jun 17, 2021 21:09 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 15,000 $23.78 $356,700.00
Disclosure

SEC source: 0001209191-21-041523 · doc4.xml · nonDerivative · entry 5

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 410,000

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2021.

F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $23.36 to $23.99.

Read SEC document
June 15, 2021 Filed Jun 17, 2021 21:09 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 10,000 $23.79 $237,900.00
Disclosure

SEC source: 0001209191-21-041523 · doc4.xml · nonDerivative · entry 4

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 13, 2021.

F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $23.36 to $23.99.

Read SEC document
June 15, 2021 Filed Jun 17, 2021 21:09 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon stock 10,000 $14.17 $141,700.00
Disclosure

SEC source: 0001209191-21-041523 · doc4.xml · nonDerivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 435,000

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 15, 2021 Filed Jun 17, 2021 21:09 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 912 $23.72 $21,632.64
Disclosure

SEC source: 0001209191-21-041523 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 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 $23.51 to $23.99.

Read SEC document
June 15, 2021 Filed Jun 17, 2021 21:09 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 912 $9.48 $8,645.76
Disclosure

SEC source: 0001209191-21-041523 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,912

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 17, 2021 Filed May 19, 2021 21:28 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 15,000 $0.00 Strike: $9.48 $0.00
Disclosure

SEC source: 0001209191-21-034074 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,537

Underlying: Common Stock · 15,000 shares

Expires 2029-02-15

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.

F3 · derivative.exercise_date: This stock option was granted on February 15, 2019 and vests as follows: 25% of the shares vest on the first anniversary of the grant date and 1/16 of the option vests each quarter thereafter, such that 100% of the option will vest on the fourth anniversary of the grant date.

Read SEC document
May 17, 2021 Filed May 19, 2021 21:28 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 15,000 $18.82 $282,300.00
Disclosure

SEC source: 0001209191-21-034074 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 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 $18.563 to $19.09.

Read SEC document
May 17, 2021 Filed May 19, 2021 21:28 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 15,000 $9.48 $142,200.00
Disclosure

SEC source: 0001209191-21-034074 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 440,000

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
April 15, 2021 Filed Apr 19, 2021 21:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 15,000 $0.00 Strike: $9.48 $0.00
Disclosure

SEC source: 0001209191-21-027327 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,537

Underlying: Common Stock · 15,000 shares

Expires 2029-02-15

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.

F3 · derivative.exercise_date: This stock option was granted on February 15, 2019 and vests as follows: 25% of the shares vest on the first anniversary of the grant date and 1/16 of the option vests each quarter thereafter, such that 100% of the option will vest on the fourth anniversary of the grant date.

Read SEC document
April 15, 2021 Filed Apr 19, 2021 21:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 15,000 $24.52 $367,800.00
Disclosure

SEC source: 0001209191-21-027327 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 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 $24.225 to $24.91.

Read SEC document
April 15, 2021 Filed Apr 19, 2021 21:14 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 15,000 $9.48 $142,200.00
Disclosure

SEC source: 0001209191-21-027327 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 440,000

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 15, 2021 Filed Mar 17, 2021 21:33 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 5,625 $0.00 Strike: $9.48 $0.00
Disclosure

SEC source: 0001209191-21-021450 · doc4.xml · derivative · entry 6

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,537

Underlying: Common Stock · 5,625 shares

Expires 2029-02-15

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.

F4 · derivative.exercise_date: This stock option was granted on February 15, 2019 and vests as follows: 25% of the shares vest on the first anniversary of the grant date and 1/16 of the option vests each quarter thereafter, such that 100% of the option will vest on the fourth anniversary of the grant date.

Read SEC document
March 15, 2021 Filed Mar 17, 2021 21:33 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 9,375 $0.00 Strike: $9.86 $0.00
Disclosure

SEC source: 0001209191-21-021450 · doc4.xml · derivative · entry 5

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,375 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.

F3 · derivative.exercise_date: This stock option was granted on February 27, 2017 and vests as follows: 25% of the shares vest on the first anniversary of the grant date and 1/16 of the option vests each quarter thereafter, such that 100% of the option will vest on the fourth anniversary of the grant date.

Read SEC document
March 15, 2021 Filed Mar 17, 2021 21:33 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 5,625 $22.47 $126,393.75
Disclosure

SEC source: 0001209191-21-021450 · doc4.xml · nonDerivative · entry 4

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 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 $22.32 to $22.61.

Read SEC document
March 15, 2021 Filed Mar 17, 2021 21:33 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 5,625 $9.48 $53,325.00
Disclosure

SEC source: 0001209191-21-021450 · doc4.xml · nonDerivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 430,625

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 15, 2021 Filed Mar 17, 2021 21:33 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 9,375 $22.47 $210,656.25
Disclosure

SEC source: 0001209191-21-021450 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 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 $22.32 to $22.61.

Read SEC document
March 15, 2021 Filed Mar 17, 2021 21:33 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 9,375 $9.86 $92,437.50
Disclosure

SEC source: 0001209191-21-021450 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 434,375

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
February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 62,500 $0.00 Strike: $14.17 $0.00
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · derivative · entry 10

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 312,500

Underlying: Common Stock · 62,500 shares

Expires 2030-07-30

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.

F7 · derivative.exercise_date: This stock option was granted on July 30, 2020 and vests as follows: the option will vest quarterly over three years at the rate of 31,250 per quarter, such that 100% will be vested on the third anniversary of the grant date.

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February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 963 $0.00 Strike: $9.48 $0.00
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · derivative · entry 9

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,162

Underlying: Common Stock · 963 shares

Expires 2029-02-15

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.

F6 · derivative.exercise_date: This stock option was granted on February 15, 2019 and vests as follows: 25% of the shares vest on the first anniversary of the grant date and 1/16 of the option vests each quarter thereafter, such that 100% of the option will vest on the fourth anniversary of the grant date.

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February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 14,037 $0.00 Strike: $9.86 $0.00
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · derivative · entry 8

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,375

Underlying: Common Stock · 14,037 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.

F5 · derivative.exercise_date: This stock option was granted on February 27, 2017 and will vest over four years as follows: 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.

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February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 62,500 $24.45 $1,528,125.00
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · nonDerivative · entry 7

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F4 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $24.37 to $25.06.

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February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 62,500 $14.17 $885,625.00
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · nonDerivative · entry 6

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 487,500

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
February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 963 $24.42 $23,516.46
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · nonDerivative · entry 5

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $24.03 to $25.06.

Read SEC document
February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 963 $9.48 $9,129.24
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · nonDerivative · entry 4

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,963

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
February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 14,037 $24.42 $342,783.54
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · nonDerivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $24.03 to $25.06.

Read SEC document
February 16, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 14,037 $9.86 $138,404.82
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 439,037

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
February 11, 2021 Filed Feb 18, 2021 23:10 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 GrantCommon Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-21-012051 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,000

F1 · shares: These are restricted shares of common stock; they vest in ten equal installments at the rate of 5,000 shares per quarter, beginning with the initial vesting on April 30, 2021, and ending with the final vesting on July 30, 2023, so that 100% of the award will be vested on July 30, 2023.

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January 15, 2021 Filed Jan 19, 2021 19:36 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 15,000 $0.00 Strike: $9.86 $0.00
Disclosure

SEC source: 0001209191-21-003976 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,412

Underlying: Common Stock · 15,000 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.

F3 · derivative.exercise_date: This stock option was granted on February 27, 2017 and will vest over four years as follows: 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
January 15, 2021 Filed Jan 19, 2021 19:36 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 15,000 $18.12 $271,800.00
Disclosure

SEC source: 0001209191-21-003976 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 375,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 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 17.73 to 18.64.

Read SEC document
January 15, 2021 Filed Jan 19, 2021 19:36 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 15,000 $9.86 $147,900.00
Disclosure

SEC source: 0001209191-21-003976 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 390,000

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
December 15, 2020 Filed Dec 16, 2020 23:02 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 15,000 $0.00 Strike: $9.86 $0.00
Disclosure

SEC source: 0001209191-20-063865 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,412

Underlying: Common Stock · 15,000 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.

F3 · derivative.exercise_date: This stock option was granted on February 27, 2017 and will vest over four years as follows: 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
December 15, 2020 Filed Dec 16, 2020 23:02 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 15,000 $15.29 $229,350.00
Disclosure

SEC source: 0001209191-20-063865 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 375,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 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 15.23 to 15.40.

Read SEC document
December 15, 2020 Filed Dec 16, 2020 23:02 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionCommon Stock 15,000 $9.86 $147,900.00
Disclosure

SEC source: 0001209191-20-063865 · doc4.xml · nonDerivative · entry 1

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 390,000

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
December 01, 2020 Filed Dec 2, 2020 18:24 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 Exercise / conversionEmployee Stock Option (Right-to-Buy) · Derivative 46,875 $0.00 Strike: $9.48 $0.00
Disclosure

SEC source: 0001209191-20-061053 · doc4.xml · derivative · entry 3

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,125

Underlying: Common Stock · 46,875 shares

Expires 2029-02-15

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: This stock option was granted on February 15, 2019 and will vest over four years as follows: 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
December 01, 2020 Filed Dec 2, 2020 18:24 UTC AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 SaleCommon Stock 46,875 $15.00 $703,125.00
Disclosure

SEC source: 0001209191-20-061053 · doc4.xml · nonDerivative · entry 2

Rutten Guillaume Marie Jean · CIK 0001596796 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 375,000

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 2020.

Read SEC document

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