Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| AMKOR TECHNOLOGY, INC.AMKR · Entity 3481 | Director · President and CEO | July 30, 2026 | July 31, 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 July 30, 2026 · Filed July 31, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 9,666 |
Reported balance
After 2026-07-30 transaction · row 1
1 source rowRow 1 · 2026-07-30 · Sale · Disposed 3,221 · Balance 9,666 |
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| July 30, 2026 Filed Jul 31, 2026 20:36 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | SaleCommon Stock | 3,221 | $47.00 | $151,387.00 |
DisclosureSEC source: 0001628280-26-051435 · wk-form4_1785530197.xml · nonDerivative · entry 1 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,666 Read SEC document |
| June 30, 2026 Filed Jul 2, 2026 20:37 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 8,692 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-046962 · wk-form4_1783024659.xml · derivative · entry 3 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 8,692 shares Expires not disclosed 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: On the Grant Date, the Reporting Person was granted 43,459 RSUs, which vested in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% was vested on June 30, 2026. F2 · derivative.expiration_date: On the Grant Date, the Reporting Person was granted 43,459 RSUs, which vested in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% was vested on June 30, 2026. Read SEC document |
| June 30, 2026 Filed Jul 2, 2026 20:37 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 3,725 | $86.23 | $321,206.75 |
DisclosureSEC source: 0001628280-26-046962 · wk-form4_1783024659.xml · nonDerivative · entry 2 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,887 F1 · kind: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 20, 2025 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| June 30, 2026 Filed Jul 2, 2026 20:37 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 8,692 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-046962 · wk-form4_1783024659.xml · nonDerivative · entry 1 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 16,612 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 31, 2026 Filed Apr 2, 2026 22:52 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 8,692 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-023387 · wk-form4_1775170368.xml · derivative · entry 3 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,692 Underlying: Common Stock · 8,692 shares Expires not disclosed 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: On the Grant Date, the Reporting Person was granted 43,459 RSUs which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. F2 · derivative.expiration_date: On the Grant Date, the Reporting Person was granted 43,459 RSUs which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. Read SEC document |
| March 31, 2026 Filed Apr 2, 2026 22:52 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 3,725 | $45.03 | $167,736.75 |
DisclosureSEC source: 0001628280-26-023387 · wk-form4_1775170368.xml · nonDerivative · entry 2 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,920 F1 · kind: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 20, 2025 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| March 31, 2026 Filed Apr 2, 2026 22:52 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 8,692 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-023387 · wk-form4_1775170368.xml · nonDerivative · entry 1 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,645 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 24, 2026 Filed Feb 26, 2026 21:17 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 910 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-012302 · wk-form4_1772140658.xml · derivative · entry 4 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 910 shares Expires not disclosed 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_price: Represents shares of the Issuer's common stock underlying time-vested RSUs on the Grant Date pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as a service provider of the Issuer and vested in four equal annual installments beginning on the first anniversary of the Grant Date. F3 · derivative.exercise_date: Represents shares of the Issuer's common stock underlying time-vested RSUs on the Grant Date pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as a service provider of the Issuer and vested in four equal annual installments beginning on the first anniversary of the Grant Date. F3 · derivative.expiration_date: Represents shares of the Issuer's common stock underlying time-vested RSUs on the Grant Date pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as a service provider of the Issuer and vested in four equal annual installments beginning on the first anniversary of the Grant Date. Read SEC document |
| February 24, 2026 Filed Feb 26, 2026 21:17 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | SaleCommon Stock | 12,500 | $48.75 | $609,375.00 |
DisclosureSEC source: 0001628280-26-012302 · wk-form4_1772140658.xml · nonDerivative · entry 3 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,953 F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.73 to $48.81. The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, 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 |
| February 24, 2026 Filed Feb 26, 2026 21:17 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 372 | $48.53 | $18,053.16 |
DisclosureSEC source: 0001628280-26-012302 · wk-form4_1772140658.xml · nonDerivative · entry 2 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,453 F1 · kind: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 24, 2022 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| February 24, 2026 Filed Feb 26, 2026 21:17 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 910 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-012302 · wk-form4_1772140658.xml · nonDerivative · entry 1 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,825 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 20, 2026 Filed Feb 24, 2026 21:12 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 10,494 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-011088 · wk-form4_1771967518.xml · derivative · entry 6 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,731 Underlying: Common Stock · 10,494 shares Expires not disclosed 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: Represents shares of the Issuer's common stock underlying time-vested restricted stock units granted on the 2025 Grant Date pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as an officer of the Issuer and will vest in three equal annual installments beginning on the first anniversary of the 2025 Grant Date and annually thereafter, such that 100% will be vested on the third anniversary of the 2025 Grant Date. F4 · derivative.expiration_date: Represents shares of the Issuer's common stock underlying time-vested restricted stock units granted on the 2025 Grant Date pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as an officer of the Issuer and will vest in three equal annual installments beginning on the first anniversary of the 2025 Grant Date and annually thereafter, such that 100% will be vested on the third anniversary of the 2025 Grant Date. Read SEC document |
| February 20, 2026 Filed Feb 24, 2026 21:12 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 6,359 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-011088 · wk-form4_1771967518.xml · derivative · entry 5 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,583 Underlying: Common Stock · 6,359 shares Expires not disclosed 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: Represents shares of the Issuer's common stock underlying time-vested RSUs on the 2024 Grant Date pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as an officer of the Issuer and will vest in three equal annual installments beginning on the first anniversary of the 2024 Grant Date and annually thereafter, such that 100% will be vested on the third anniversary of the 2024 Grant Date. F3 · derivative.expiration_date: Represents shares of the Issuer's common stock underlying time-vested RSUs on the 2024 Grant Date pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as an officer of the Issuer and will vest in three equal annual installments beginning on the first anniversary of the 2024 Grant Date and annually thereafter, such that 100% will be vested on the third anniversary of the 2024 Grant Date. Read SEC document |
| February 20, 2026 Filed Feb 24, 2026 21:12 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 4,286 | $47.94 | $205,470.84 |
DisclosureSEC source: 0001628280-26-011088 · wk-form4_1771967518.xml · nonDerivative · entry 4 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 14,915 F2 · kind: The transaction represents shares withheld by the Issuer in connection with the vesting of certain RSUs granted to the Reporting Person on February 20, 2025 (the "2025 Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| February 20, 2026 Filed Feb 24, 2026 21:12 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 10,494 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-011088 · wk-form4_1771967518.xml · nonDerivative · entry 3 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 19,201 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 20, 2026 Filed Feb 24, 2026 21:12 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 2,597 | $47.94 | $124,500.18 |
DisclosureSEC source: 0001628280-26-011088 · wk-form4_1771967518.xml · nonDerivative · entry 2 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 8,707 F1 · kind: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 20, 2024 (the "2024 Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| February 20, 2026 Filed Feb 24, 2026 21:12 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 6,359 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-011088 · wk-form4_1771967518.xml · nonDerivative · entry 1 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,304 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 18, 2026 Filed Feb 20, 2026 21:16 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | GrantRestricted Stock Units · Derivative | 21,394 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-010213 · wk-form4_1771622186.xml · derivative · entry 6 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,394 Underlying: Common Stock · 21,394 shares Expires not disclosed F5 · derivative.exercise_date: Represents shares of the Issuer's common stock underlying time-vested RSUs granted on February 18, 2026 (the "Grant Date") pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as an officer of the Issuer and will vest in two equal annual installments beginning on December 31, 2026 such that 100% will be vested on December 31, 2027. F5 · derivative.expiration_date: Represents shares of the Issuer's common stock underlying time-vested RSUs granted on February 18, 2026 (the "Grant Date") pursuant to the Issuer's Equity Incentive Plan. The RSUs were awarded for no consideration other than the Reporting Person's service as an officer of the Issuer and will vest in two equal annual installments beginning on December 31, 2026 such that 100% will be vested on December 31, 2027. Read SEC document |
| February 18, 2026 Filed Feb 20, 2026 21:16 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | GrantRestricted Stock Units · Derivative | 53,487 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-010213 · wk-form4_1771622186.xml · derivative · entry 5 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 53,487 Underlying: Common Stock · 53,487 shares Expires not disclosed F4 · derivative.exercise_date: Represents shares of the Issuer's common stock underlying time-vested restricted stock units granted on February 18, 2026 (the "Grant Date") pursuant to the Issuer's Equity Incentive Plan (the "RSUs"). The RSUs were awarded for no consideration other than the Reporting Person's service as an officer of the Issuer and will vest in three equal annual installments beginning on the first anniversary of the Grant Date and annually thereafter, such that 100% will be vested on the third anniversary of the Grant Date. F4 · derivative.expiration_date: Represents shares of the Issuer's common stock underlying time-vested restricted stock units granted on February 18, 2026 (the "Grant Date") pursuant to the Issuer's Equity Incentive Plan (the "RSUs"). The RSUs were awarded for no consideration other than the Reporting Person's service as an officer of the Issuer and will vest in three equal annual installments beginning on the first anniversary of the Grant Date and annually thereafter, such that 100% will be vested on the third anniversary of the Grant Date. Read SEC document |
| February 18, 2026 Filed Feb 20, 2026 21:16 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 2,398 | $46.74 | $112,082.52 |
DisclosureSEC source: 0001628280-26-010213 · wk-form4_1771622186.xml · nonDerivative · entry 4 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,945 F2 · kind: The transaction represents shares of the Issuer's common stock withheld by the Issuer in connection with the vesting of PSUs to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| February 18, 2026 Filed Feb 20, 2026 21:16 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | GrantCommon Stock | 5,594 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-010213 · wk-form4_1771622186.xml · nonDerivative · entry 3 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,343 F3 · kind: The transaction represents the vesting on February 18, 2026 of 5,594 shares of common stock of the Issuer's underlying PSUs granted to the Reporting Person on February 20, 2025 pursuant to the Issuer's Equity Incentive Plan, as amended, and the related award agreement. The PSUs vested based on the attainment of a basic earnings per share performance goal over a one-year performance period beginning January 1, 2025 and ending on December 31, 2025. Read SEC document |
| February 18, 2026 Filed Feb 20, 2026 21:16 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 814 | $46.74 | $38,046.36 |
DisclosureSEC source: 0001628280-26-010213 · wk-form4_1771622186.xml · nonDerivative · entry 2 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,749 F2 · kind: The transaction represents shares of the Issuer's common stock withheld by the Issuer in connection with the vesting of PSUs to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| February 18, 2026 Filed Feb 20, 2026 21:16 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | GrantCommon Stock | 1,777 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-010213 · wk-form4_1771622186.xml · nonDerivative · entry 1 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,563 F1 · kind: This Form 4 reports the vesting on February 18, 2026 of 1,777 shares of common stock of Amkor Technology, Inc. (the "Issuer") underlying performance-vested restricted stock units ("PSUs") granted to the Reporting Person on February 20, 2024 pursuant to the Issuer's Equity Incentive Plan, as amended, and the related award agreement. The PSUs vested based on the attainment of a basic earnings per share performance goal over a one-year performance period beginning January 1, 2025 and ending on December 31, 2025. Read SEC document |
| February 17, 2026 Filed Feb 18, 2026 21:13 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | SaleCommon Stock | 5,316 | $46.03 | $244,695.48 |
DisclosureSEC source: 0001628280-26-009045 · wk-form4_1771449187.xml · nonDerivative · entry 3 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 786 Read SEC document |
| February 16, 2026 Filed Feb 18, 2026 21:13 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 1,345 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-009045 · wk-form4_1771449187.xml · derivative · entry 4 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,391 Underlying: Common Stock · 1,345 shares Expires not disclosed 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_price: On the Grant Date, the Reporting Person was granted 5,567 RSUs which vest in four equal annual installments beginning on the first anniversary of the Grant Date. F2 · derivative.exercise_date: On the Grant Date, the Reporting Person was granted 5,567 RSUs which vest in four equal annual installments beginning on the first anniversary of the Grant Date. F2 · derivative.expiration_date: On the Grant Date, the Reporting Person was granted 5,567 RSUs which vest in four equal annual installments beginning on the first anniversary of the Grant Date. Read SEC document |
| February 16, 2026 Filed Feb 18, 2026 21:13 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 559 | $47.48 | $26,541.32 |
DisclosureSEC source: 0001628280-26-009045 · wk-form4_1771449187.xml · nonDerivative · entry 2 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,102 F1 · kind: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 16, 2023 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| February 16, 2026 Filed Feb 18, 2026 21:13 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 1,345 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-009045 · wk-form4_1771449187.xml · nonDerivative · entry 1 Engel Kevin K. · CIK 0001965254 · Director · President and CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,661 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 31, 2025 Filed Jan 5, 2026 21:19 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 8,692 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-000450 · wk-form4_1767647970.xml · derivative · entry 3 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 17,384 Underlying: Common Stock · 8,692 shares Expires not disclosed 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: On the Grant Date, the Reporting Person was granted 43,459 RSUs which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. F2 · derivative.expiration_date: On the Grant Date, the Reporting Person was granted 43,459 RSUs which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. Read SEC document |
| December 31, 2025 Filed Jan 5, 2026 21:19 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 3,725 | $39.48 | $147,063.00 |
DisclosureSEC source: 0001628280-26-000450 · wk-form4_1767647970.xml · nonDerivative · entry 2 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,316 F1 · kind: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 20, 2025 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| December 31, 2025 Filed Jan 5, 2026 21:19 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 8,692 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-26-000450 · wk-form4_1767647970.xml · nonDerivative · entry 1 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 9,041 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 12, 2025 Filed Dec 16, 2025 21:25 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | SaleCommon Stock | 11,000 | $46.21 | $508,310.00 |
DisclosureSEC source: 0001628280-25-057395 · wk-form4_1765920340.xml · nonDerivative · entry 1 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 349 F1 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $45.92 to $46.52. 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 (1) to this Form 4. F2 · balance_after: On February 21, 2025, the Reporting Person filed a Form 4 which inadvertently overreported the number of shares of common stock of the Issuer ("Shares") withheld by the Issuer in connection with the vesting of performance-vested restricted stock units to satisfy the Reporting Person's tax withholding obligations by 28 Shares. The amount of securities beneficially owned following the transaction reported in this Form 4 reflects a correction to the holdings of the Reporting Person previously reported on Form 4 since February 21, 2025, which understated holdings by 28 Shares. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 369 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · derivative · entry 12 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 32,225 Underlying: Common Stock · 369 shares Expires not disclosed 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_price: The reported transaction involved the withholding of 369 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F4 · shares: The reported transaction involved the withholding of 369 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F4 · derivative.exercise_date: The reported transaction involved the withholding of 369 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F4 · derivative.expiration_date: The reported transaction involved the withholding of 369 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 223 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · derivative · entry 11 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 12,942 Underlying: Common Stock · 223 shares Expires not disclosed 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_price: The reported transaction involved the withholding of 223 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F3 · shares: The reported transaction involved the withholding of 223 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F3 · derivative.exercise_date: The reported transaction involved the withholding of 223 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F3 · derivative.expiration_date: The reported transaction involved the withholding of 223 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 47 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · derivative · entry 10 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,736 Underlying: Common Stock · 47 shares Expires not disclosed 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_price: The reported transaction involved the withholding of 47 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F2 · shares: The reported transaction involved the withholding of 47 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F2 · derivative.exercise_date: The reported transaction involved the withholding of 47 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. F2 · derivative.expiration_date: The reported transaction involved the withholding of 47 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 30 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · derivative · entry 9 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 910 Underlying: Common Stock · 30 shares Expires not disclosed 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_price: The reported transaction involved the withholding of 30 shares of common stock of Amkor Technology, Inc. (the "Issuer") issuable upon the early vesting of an equal number of restricted stock units ("RSUs") to pay taxes associated with the Reporting Person's retirement eligibility status. F1 · shares: The reported transaction involved the withholding of 30 shares of common stock of Amkor Technology, Inc. (the "Issuer") issuable upon the early vesting of an equal number of restricted stock units ("RSUs") to pay taxes associated with the Reporting Person's retirement eligibility status. F1 · derivative.exercise_date: The reported transaction involved the withholding of 30 shares of common stock of Amkor Technology, Inc. (the "Issuer") issuable upon the early vesting of an equal number of restricted stock units ("RSUs") to pay taxes associated with the Reporting Person's retirement eligibility status. F1 · derivative.expiration_date: The reported transaction involved the withholding of 30 shares of common stock of Amkor Technology, Inc. (the "Issuer") issuable upon the early vesting of an equal number of restricted stock units ("RSUs") to pay taxes associated with the Reporting Person's retirement eligibility status. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 369 | $31.68 | $11,689.92 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · nonDerivative · entry 8 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,321 F4 · kind: The reported transaction involved the withholding of 369 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 369 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · nonDerivative · entry 7 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,690 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 |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 223 | $31.68 | $7,064.64 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · nonDerivative · entry 6 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,321 F3 · kind: The reported transaction involved the withholding of 223 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 223 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · nonDerivative · entry 5 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,544 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 |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 47 | $31.68 | $1,488.96 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · nonDerivative · entry 4 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,321 F2 · kind: The reported transaction involved the withholding of 47 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 47 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · nonDerivative · entry 3 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,368 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 |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 30 | $31.68 | $950.40 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · nonDerivative · entry 2 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,321 F1 · kind: The reported transaction involved the withholding of 30 shares of common stock of Amkor Technology, Inc. (the "Issuer") issuable upon the early vesting of an equal number of restricted stock units ("RSUs") to pay taxes associated with the Reporting Person's retirement eligibility status. Read SEC document |
| November 14, 2025 Filed Nov 18, 2025 21:33 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 30 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-052924 · wk-form4_1763501633.xml · nonDerivative · entry 1 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,351 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 30, 2025 Filed Oct 2, 2025 20:38 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 8,692 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-043761 · wk-form4_1759437488.xml · derivative · entry 3 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,076 Underlying: Common Stock · 8,692 shares Expires not disclosed 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: On the Grant Date, the Reporting Person was granted 43,459 RSUs which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. F2 · derivative.expiration_date: On the Grant Date, the Reporting Person was granted 43,459 RSUs which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. Read SEC document |
| September 30, 2025 Filed Oct 2, 2025 20:38 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 3,725 | $28.40 | $105,790.00 |
DisclosureSEC source: 0001628280-25-043761 · wk-form4_1759437488.xml · nonDerivative · entry 2 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 11,321 F1 · kind: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 20, 2025 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| September 30, 2025 Filed Oct 2, 2025 20:38 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 8,692 | $0.00 | $0.00 |
DisclosureSEC source: 0001628280-25-043761 · wk-form4_1759437488.xml · nonDerivative · entry 1 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 15,046 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 30, 2025 Filed Jul 2, 2025 22:11 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionRestricted Stock Units · Derivative | 8,691 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001047127-25-000157 · wk-form4_1751494287.xml · derivative · entry 3 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 34,768 Underlying: Common Stock · 8,691 shares Expires not disclosed 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: On the Grant Date, the Reporting Person was granted 43,459 RSUs which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. F2 · derivative.expiration_date: On the Grant Date, the Reporting Person was granted 43,459 RSUs which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. Read SEC document |
| June 30, 2025 Filed Jul 2, 2025 22:11 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Tax withholdingCommon Stock | 3,725 | $20.99 | $78,187.75 |
DisclosureSEC source: 0001047127-25-000157 · wk-form4_1751494287.xml · nonDerivative · entry 2 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,354 F1 · kind: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 20, 2025 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person. Read SEC document |
| June 30, 2025 Filed Jul 2, 2025 22:11 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | Exercise / conversionCommon Stock | 8,691 | $0.00 | $0.00 |
DisclosureSEC source: 0001047127-25-000157 · wk-form4_1751494287.xml · nonDerivative · entry 1 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 10,079 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 25, 2025 Filed Feb 26, 2025 21:36 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | SaleCommon Stock | 5,489 | $21.69 | $119,056.41 |
DisclosureSEC source: 0001047127-25-000048 · wk-form4_1740605759.xml · nonDerivative · entry 3 Engel Kevin · CIK 0001965254 · Executive Vice President 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,388 F2 · price: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $21.68 to $21.70. The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.