KLIC

SEC source: 0000056978-21-000167 · wf-form4_163780220958865.xml · nonDerivative · entry 1

Chylak Robert Nestor · CIK 0001887782 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,649

F1 · shares: The shares covered by this Form 4 were sold pursuant to a Rule 10b5-1(c) sales plan dated September 14, 2021.

SEC source: 0000056978-21-000165 · wf-form4_163762750062302.xml · derivative · entry 2

CHEN FUSEN ERNIE · CIK 0001316245 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 60,000 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 12, 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 12, 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: 0000056978-21-000165 · wf-form4_163762750062302.xml · nonDerivative · entry 1

CHEN FUSEN ERNIE · CIK 0001316245 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 857,101

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 12, 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: 0000056978-21-000163 · wf-form4_163762733782926.xml · derivative · entry 2

Wong Lester A · CIK 0001529306 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,916 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: 0000056978-21-000163 · wf-form4_163762733782926.xml · nonDerivative · entry 1

Wong Lester A · CIK 0001529306 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 145,873

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: 0000056978-21-000161 · wf-form4_163762719275652.xml · derivative · entry 2

Chylak Robert Nestor · CIK 0001887782 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,082 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: 0000056978-21-000161 · wf-form4_163762719275652.xml · nonDerivative · entry 1

Chylak Robert Nestor · CIK 0001887782 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,881

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.

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: 0000056978-21-000159 · wf-form4_163762705120588.xml · derivative · entry 2

Wong Nelson MunPun · CIK 0001536288 · Senior 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: 0000056978-21-000159 · wf-form4_163762705120588.xml · nonDerivative · entry 1

Wong Nelson MunPun · CIK 0001536288 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 171,167

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: 0000056978-21-000157 · wf-form4_163762689413237.xml · derivative · entry 2

Soloveizik Zamir Shai · CIK 0001768899 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 682 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: 0000056978-21-000157 · wf-form4_163762689413237.xml · nonDerivative · entry 1

Soloveizik Zamir Shai · CIK 0001768899 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,870

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: 0000056978-21-000155 · 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: 0000056978-22-000130 · wf-form4_166804013701174.xml · nonDerivative · entry 1

Chylak Robert Nestor · CIK 0001887782 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,619

F1 · date: This Form 4 is being filed late due to administrative error.

F2 · shares: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with issuance of 1,082 shares of common stock arising from payout under Performance Share Units (PSUs) awarded on October 11, 2018. The payment was certified and the shares were issued on November 18, 2021, each PSU convertible into one share of common stock. These shares were not issued to or sold by the Reporting Person.

SEC source: 0000056978-21-000143 · wf-form4_163468495093004.xml · nonDerivative · entry 1

Drake Stephen Ray · CIK 0001804476 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,452

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

SEC source: 0000056978-21-000145 · wf-form4_163468510169938.xml · nonDerivative · entry 1

Wong Nelson MunPun · CIK 0001536288 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,817

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

SEC source: 0000056978-21-000141 · wf-form4_163468478646797.xml · nonDerivative · entry 1

Wong Lester A · CIK 0001529306 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 141,957

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

SEC source: 0000056978-21-000137 · wf-form4_163468447012495.xml · nonDerivative · entry 1

CHEN FUSEN ERNIE · CIK 0001316245 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 797,101

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

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: 0000056978-21-000130 · wf-form4_163424932712989.xml · derivative · entry 2

CHEN FUSEN ERNIE · CIK 0001316245 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 131,400 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 12, 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 12, 2021. Each PSU is convertible into one share of common stock.

F1 · derivative.expiration_date: Performance Share Units (PSUs) awarded October 12, 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 12, 2021. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-21-000130 · wf-form4_163424932712989.xml · nonDerivative · entry 1

CHEN FUSEN ERNIE · CIK 0001316245 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 776,776

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 12, 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 12, 2021. Each PSU is convertible into one share of common stock.

SEC source: 0000056978-21-000128 · wf-form4_163416288472891.xml · derivative · entry 2

Wong Nelson MunPun · CIK 0001536288 · Senior 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: 0000056978-21-000128 · wf-form4_163416288472891.xml · nonDerivative · entry 1

Wong Nelson MunPun · CIK 0001536288 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 160,410

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: 0000056978-21-000126 · wf-form4_163416268453090.xml · derivative · entry 2

Wong Lester A · CIK 0001529306 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,577 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: 0000056978-21-000126 · wf-form4_163416268453090.xml · nonDerivative · entry 1

Wong Lester A · CIK 0001529306 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,623

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: 0000056978-21-000124 · wf-form4_163416249230268.xml · derivative · entry 4

Soloveizik Zamir Shai · CIK 0001768899 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 411 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: 0000056978-21-000124 · wf-form4_163416249230268.xml · derivative · entry 3

Soloveizik Zamir Shai · CIK 0001768899 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,089 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: 0000056978-21-000124 · wf-form4_163416249230268.xml · nonDerivative · entry 2

Soloveizik Zamir Shai · CIK 0001768899 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,188

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: 0000056978-21-000124 · wf-form4_163416249230268.xml · nonDerivative · entry 1

Soloveizik Zamir Shai · CIK 0001768899 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,777

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: 0000056978-21-000122 · 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: 0000056978-21-000120 · wf-form4_163356210396414.xml · nonDerivative · entry 1

Yeo Mui Sung · CIK 0001559360 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,759

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000118 · wf-form4_163356189624888.xml · nonDerivative · entry 1

RICHARDSON DAVID JEFFREY · CIK 0001329724 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,028

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000116 · wf-form4_163356170962718.xml · nonDerivative · entry 1

Olson Jon A · CIK 0001331263 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,773

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000112 · wf-form4_163356139525246.xml · nonDerivative · entry 1

Lim Chin Hu · CIK 0001536593 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,311

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000114 · wf-form4_163356152108640.xml · nonDerivative · entry 1

Milzcik Gregory F · CIK 0001196440 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,995

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000110 · wf-form4_163356120745882.xml · nonDerivative · entry 1

Kong Peter T M · CIK 0001356626 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,640

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000108 · wf-form4_163122872820610.xml · nonDerivative · entry 1

Drake Stephen Ray · CIK 0001804476 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,930

SEC source: 0000056978-21-000104 · wf-form4_162863648367546.xml · nonDerivative · entry 1

Soloveizik Zamir Shai · CIK 0001768899 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,688

F1 · shares: The shares covered by this Form 4 were sold pursuant to a Rule 10b5-1(c) sales plan dated March 9, 2021.

SEC source: 0000056978-21-000096 · wf-form4_162578599924011.xml · nonDerivative · entry 1

RICHARDSON DAVID JEFFREY · CIK 0001329724 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,312

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000094 · wf-form4_162578579573849.xml · nonDerivative · entry 1

Olson Jon A · CIK 0001331263 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,057

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000098 · wf-form4_162578616470362.xml · nonDerivative · entry 1

Yeo Mui Sung · CIK 0001559360 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,043

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000092 · wf-form4_162578559812194.xml · nonDerivative · entry 1

Milzcik Gregory F · CIK 0001196440 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,279

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000090 · wf-form4_162578544365120.xml · nonDerivative · entry 1

Lim Chin Hu · CIK 0001536593 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 76,595

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000088 · wf-form4_162578528987728.xml · nonDerivative · entry 1

Kong Peter T M · CIK 0001356626 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,924

F1 · shares: Quarterly stock grant under the 2021 Omnibus Incentive Plan.

SEC source: 0000056978-21-000076 · wf-form4_162379802617279.xml · nonDerivative · entry 1

Lim Chin Hu · CIK 0001536593 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,885

SEC source: 0000056978-21-000074 · wf-form4_162344909598649.xml · nonDerivative · entry 3

CHEN FUSEN ERNIE · CIK 0001316245 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 645,376

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.82 to $56.58, inclusive.

SEC source: 0000056978-21-000074 · wf-form4_162344909598649.xml · nonDerivative · entry 2

CHEN FUSEN ERNIE · CIK 0001316245 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 655,376

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.70 to $56.95, inclusive.

SEC source: 0000056978-21-000074 · wf-form4_162344909598649.xml · nonDerivative · entry 1

CHEN FUSEN ERNIE · CIK 0001316245 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 678,947

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.70 to $56.69, 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: 0000056978-21-000063 · wf-form4_161965102686533.xml · nonDerivative · entry 1

Wong Nelson MunPun · CIK 0001536288 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 150,880

F1 · shares: The shares covered by this Form 4 were sold pursuant to a Rule 10b5-1(c) sales plan dated March 21, 2021.