Chong Chan Pin

SEC source: 0001692400-25-000006 · wk-form4_1764028882.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 174 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: Performance Share Units (PSUs) awarded October 14, 2022, achieved an 8% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified, and the shares issued on November 20, 2025. Each PSU is convertible into one share of common stock.

F1 · derivative.exercise_date: Performance Share Units (PSUs) awarded October 14, 2022, achieved an 8% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified, and the shares issued on November 20, 2025. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 14, 2022, achieved an 8% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified, and the shares issued on November 20, 2025. Each PSU is convertible into one share of common stock.

SEC source: 0001692400-25-000006 · wk-form4_1764028882.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,195

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 · shares: Performance Share Units (PSUs) awarded October 14, 2022, achieved an 8% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified, and the shares issued on November 20, 2025. Each PSU is convertible into one share of common stock.

SEC source: 0001692400-25-000004 · wk-form4_1760553637.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,375 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: Performance Share Units (PSUs) awarded October 14, 2022, achieved a 82% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three-year period. The pay-out was certified, and shares issued on October 14, 2025. Each PSU is convertible to one share of common stock.

F1 · derivative.exercise_date: Performance Share Units (PSUs) awarded October 14, 2022, achieved a 82% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three-year period. The pay-out was certified, and shares issued on October 14, 2025. Each PSU is convertible to one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 14, 2022, achieved a 82% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three-year period. The pay-out was certified, and shares issued on October 14, 2025. Each PSU is convertible to one share of common stock.

SEC source: 0001692400-25-000004 · wk-form4_1760553637.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,021

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 · shares: Performance Share Units (PSUs) awarded October 14, 2022, achieved a 82% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three-year period. The pay-out was certified, and shares issued on October 14, 2025. Each PSU is convertible to one share of common stock.

SEC source: 0000056978-24-000161 · wk-form4_1732233654.xml · nonDerivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,646

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.00 to $46.53, inclusive.

SEC source: 0000056978-24-000161 · wk-form4_1732233654.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,916

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.00 to $46.21, inclusive.

SEC source: 0000056978-24-000154 · wk-form4_1731974372.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 128 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: Performance Share Units (PSUs) awarded October 15, 2021, achieved an 8% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified, and the shares issued on November 14, 2024. Each PSU is convertible into one share of common stock.

F1 · derivative.exercise_date: Performance Share Units (PSUs) awarded October 15, 2021, achieved an 8% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified, and the shares issued on November 14, 2024. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 15, 2021, achieved an 8% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified, and the shares issued on November 14, 2024. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-24-000154 · wk-form4_1731974372.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,646

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 · shares: Performance Share Units (PSUs) awarded October 15, 2021, achieved an 8% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified, and the shares issued on November 14, 2024. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-24-000137 · wk-form4_1729294755.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,518

F1 · shares: One-third of the shares granted vest on each anniversary of the date of grant.

SEC source: 0000056978-24-000125 · wk-form4_1729209021.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,564 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: Performance Share Units (PSUs) awarded October 15, 2021 achieved a 95% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three year period. The pay-out was certified, and shares issued on October 15, 2024. Each PSU is convertible to one share of common stock.

F1 · derivative.exercise_date: Performance Share Units (PSUs) awarded October 15, 2021 achieved a 95% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three year period. The pay-out was certified, and shares issued on October 15, 2024. Each PSU is convertible to one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 15, 2021 achieved a 95% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three year period. The pay-out was certified, and shares issued on October 15, 2024. Each PSU is convertible to one share of common stock.

SEC source: 0000056978-24-000125 · wk-form4_1729209021.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,912

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.

F1 · shares: Performance Share Units (PSUs) awarded October 15, 2021 achieved a 95% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three year period. The pay-out was certified, and shares issued on October 15, 2024. Each PSU is convertible to one share of common stock.

SEC source: 0000056978-23-000178 · wk-form4_1700525506.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,776 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_date: Performance Share Units (PSUs) awarded October 7, 2020 achieved a 200% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified and the shares issued on November 16, 2023. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 7, 2020 achieved a 200% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified and the shares issued on November 16, 2023. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-23-000178 · wk-form4_1700525506.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,348

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 · shares: Performance Share Units (PSUs) awarded October 7, 2020 achieved a 200% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified and the shares issued on November 16, 2023. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-23-000151 · wk-form4_1697239410.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,572

F1 · shares: One-third of the shares granted vest on each anniversary of the date of grant.

SEC source: 0000056978-23-000137 · wk-form4_1696981161.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,380 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_date: Performance Share Units (PSUs) awarded October 7, 2020, achieved a 166% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three year period. The pay-out was certified, and shares issued on October 7, 2023. Each PSU is convertible to one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 7, 2020, achieved a 166% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three year period. The pay-out was certified, and shares issued on October 7, 2023. Each PSU is convertible to one share of common stock.

SEC source: 0000056978-23-000137 · wk-form4_1696981161.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,531

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 · shares: Performance Share Units (PSUs) awarded October 7, 2020, achieved a 166% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with the relative TSR measured over a three year period. The pay-out was certified, and shares issued on October 7, 2023. Each PSU is convertible to one share of common stock.

SEC source: 0000056978-23-000081 · wk-form4_1688428912.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,151

F1 · shares: The shares covered by this Form 4 were sold pursuant to a Rule 10b5-1(c) sales plan dated February 16, 2023.

SEC source: 0000056978-22-000155 · wf-form4_166968158346601.xml · nonDerivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,151

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.31 to $46.50, inclusive. The reporting person undertakes to provide to Kulicke and Soffa Industries, Inc., any security holder of Kulicke and Soffa Industries, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

SEC source: 0000056978-22-000155 · wf-form4_166968158346601.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,851

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $47.60 to $47.61, inclusive. The reporting person undertakes to provide to Kulicke and Soffa Industries, Inc., any security holder of Kulicke and Soffa Industries, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0000056978-22-000147 · wf-form4_166907745065478.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,904 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_date: Performance Share Units (PSUs) awarded October 10, 2019 and December 11, 2019, achieved a 200% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified and the shares issued on November 17, 2022. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 10, 2019 and December 11, 2019, achieved a 200% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified and the shares issued on November 17, 2022. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-22-000147 · wf-form4_166907745065478.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 104,651

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 · shares: Performance Share Units (PSUs) awarded October 10, 2019 and December 11, 2019, achieved a 200% payout based on the greater of absolute revenue growth or relative performance against each direct competitor for each year of the three-year performance period. The payout was certified and the shares issued on November 17, 2022. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-22-000126 · wf-form4_166613565392398.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,747

F1 · shares: One-third of the shares granted vest on each anniversary of the date of grant.

SEC source: 0000056978-22-000108 · wf-form4_166561681351436.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,224 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_date: Performance Share Units (PSUs) awarded October 10, 2019 and December 11, 2019, achieved a 138% pay-out based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with relative TSR measured over a three-year period. The pay-out was certified, and shares issued on October 10, 2022. Each PSU is convertible to one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 10, 2019 and December 11, 2019, achieved a 138% pay-out based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with relative TSR measured over a three-year period. The pay-out was certified, and shares issued on October 10, 2022. Each PSU is convertible to one share of common stock.

SEC source: 0000056978-22-000108 · wf-form4_166561681351436.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,008

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 · shares: Performance Share Units (PSUs) awarded October 10, 2019 and December 11, 2019, achieved a 138% pay-out based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of the Performance Period with relative TSR measured over a three-year period. The pay-out was certified, and shares issued on October 10, 2022. Each PSU is convertible to one share of common stock.

SEC source: 0000056978-22-000037 · wf-form4_164790362458243.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,784

SEC source: 0000056978-21-000169 · wf-form4_163909569444562.xml · nonDerivative · entry 3

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,784

SEC source: 0000056978-21-000169 · wf-form4_163909569444562.xml · nonDerivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,134

F1 · shares: The shares were sold pursuant to a Rule 10b5-1(c) sales plan dated November 24, 2021.

SEC source: 0000056978-21-000169 · wf-form4_163909569444562.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,651

F1 · shares: The shares were sold pursuant to a Rule 10b5-1(c) sales plan dated November 24, 2021.

SEC source: 0000056978-21-000155 · wf-form4_163762673667105.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,350 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_date: Performance Share Units (PSUs) awarded October 11, 2018 achieved a 200% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on November 18, 2021. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 11, 2018 achieved a 200% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on November 18, 2021. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-21-000155 · wf-form4_163762673667105.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,168

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 · shares: Performance Share Units (PSUs) awarded October 11, 2018 achieved a 200% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on November 18, 2021. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-21-000139 · wf-form4_163468461978215.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,818

F1 · shares: One-third of the shares granted vest on each anniversary of the date of grant.

SEC source: 0000056978-21-000122 · wf-form4_163416230091358.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,530 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_date: Performance Share Units (PSUs) awarded October 11, 2018 achieved a 146% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. The payout was certified and shares issued on October 11, 2021. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 11, 2018 achieved a 146% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. The payout was certified and shares issued on October 11, 2021. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-21-000122 · wf-form4_163416230091358.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,411

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 · shares: Performance Share Units (PSUs) awarded October 11, 2018 achieved a 146% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. The payout was certified and shares issued on October 11, 2021. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-21-000045 · wf-form4_161619509350992.xml · nonDerivative · entry 3

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,881

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.00 to $51.01, inclusive.

SEC source: 0000056978-21-000045 · wf-form4_161619509350992.xml · nonDerivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,181

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.00 to $50.57, inclusive.

SEC source: 0000056978-21-000045 · wf-form4_161619509350992.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,303

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.00 to $51.20, inclusive. The reporting person undertakes to provide to Kulicke and Soffa Industries, any security holder of Kulicke and Soffa Industries, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2) and (3) to this Form 4.

SEC source: 0000056978-20-000167 · wf-form4_160803861966957.xml · derivative · entry 4

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 323 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: Performance Share Units (PSUs) awarded December 11, 2017 achieved a 17% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on December 11, 2020. Each PSU is convertible into one share of common stock.

F2 · derivative.expiration_date: Performance Share Units (PSUs) awarded December 11, 2017 achieved a 17% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on December 11, 2020. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-20-000167 · wf-form4_160803861966957.xml · derivative · entry 3

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,421 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_date: Performance Share Units (PSUs) awarded December 11, 2017 achieved a 95% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. The payout was certified and shares issued on December 11, 2020. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded December 11, 2017 achieved a 95% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. The payout was certified and shares issued on December 11, 2020. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-20-000167 · wf-form4_160803861966957.xml · nonDerivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 104,881

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 · shares: Performance Share Units (PSUs) awarded December 11, 2017 achieved a 17% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on December 11, 2020. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-20-000167 · wf-form4_160803861966957.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 104,558

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 · shares: Performance Share Units (PSUs) awarded December 11, 2017 achieved a 95% payout based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. The payout was certified and shares issued on December 11, 2020. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-20-000152 · wf-form4_160625179124838.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 354 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_date: Performance Share Units (PSUs) awarded November 7, 2017 achieved a 17% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on November 23, 2020. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded November 7, 2017 achieved a 17% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on November 23, 2020. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-20-000152 · wf-form4_160625179124838.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,137

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 · shares: Performance Share Units (PSUs) awarded November 7, 2017 achieved a 17% payout based on the greater of absolute revenue growth or relative revenue growth against two performance peers for each year of the three-year performance period. The payout was certified and the shares issued on November 23, 2020. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-20-000134 · wf-form4_160501870230966.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,952 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_date: Performance Share Units (PSUs) awarded November 7, 2017 had its performance results certified, and then shares vested, on November 7, 2020 at 95% achievement based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. Each PSU is convertible into one share of Kulicke and Soffa Industries Inc. common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded November 7, 2017 had its performance results certified, and then shares vested, on November 7, 2020 at 95% achievement based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. Each PSU is convertible into one share of Kulicke and Soffa Industries Inc. common stock.

SEC source: 0000056978-20-000134 · wf-form4_160501870230966.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,783

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 · shares: Performance Share Units (PSUs) awarded November 7, 2017 had its performance results certified, and then shares vested, on November 7, 2020 at 95% achievement based on total shareholder return (TSR) relative to a peer group. The peer group consisted of the companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period with relative TSR measured over a three year period. Each PSU is convertible into one share of Kulicke and Soffa Industries Inc. common stock.

SEC source: 0000056978-20-000118 · wf-form4_160225518602928.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,831

F1 · shares: One-third of the shares granted vest on each anniversary of the date of grant.

SEC source: 0000056978-20-000100 · wf-form4_159740309322927.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,281

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $25.3000 to $25.3900, inclusive. The reporting person undertakes to provide Kulicke & Soffa Industries Inc., any security holder of Kulicke & Soffa Industries Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0000056978-20-000098 · wf-form4_159732711273932.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,943

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $25.3200 to $25.8050, inclusive. The reporting person undertakes to provide Kulicke & Soffa Industries Inc., any security holder of Kulicke & Soffa Industries Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0000056978-20-000096 · wf-form4_159724162788609.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,181

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $25.00 to $25.06, inclusive. The reporting person undertakes to provide Kulicke & Soffa Industries Inc., any security holder of Kulicke & Soffa Industries Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0000056978-20-000094 · wf-form4_159715110767506.xml · nonDerivative · entry 1

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,681

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $25.00 to $25.01, inclusive. The reporting person undertakes to provide Kulicke & Soffa Industries Inc., any security holder of Kulicke & Soffa Industries Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0000056978-20-000028 · wf-form4_158082385594405.xml · derivative · entry 2

Chong Chan Pin · CIK 0001692400 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,845 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_date: Performance Share Units (PSUs) awarded February 1, 2017 had its performance results certified, and then shares vested, on February 1, 2020 at 141% achievement based on total shareholder return (TSR) relative to a peer group. The peer group consisted of companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period, with relative TSR measured over a three year measurement period. Each PSU is convertible into one share of Kulicke and Soffa Industries Inc. common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded February 1, 2017 had its performance results certified, and then shares vested, on February 1, 2020 at 141% achievement based on total shareholder return (TSR) relative to a peer group. The peer group consisted of companies of the GICS 45301020 (Semiconductors) not including companies traded on the Pink Sheets LLC Exchange as of the beginning of Performance Period, with relative TSR measured over a three year measurement period. Each PSU is convertible into one share of Kulicke and Soffa Industries Inc. common stock.