Fusen E. Chen - 14 Oct 2025 Form 4 Insider Report for KULICKE & SOFFA INDUSTRIES INC (KLIC)

Role: President and CEO, Director
Signature: Zi Yao Lim, Attorney-in-Fact for Fusen E. Chen
Issuer symbol: KLIC
Transactions as of: 14 Oct 2025
Net transactions value: $0
Form type: 4
Filing time: 15 Oct 2025, 14:38:02 UTC
Previous filing: 06 Dec 2024
Next filing: 24 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
CHEN FUSEN ERNIE	President and CEO, Director	23A SERANGOON NORTH AVE 5, #01-01, SINGAPORE, SINGAPORE	Zi Yao Lim, Attorney-in-Fact for Fusen E. Chen	15 Oct 2025	0001316245

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KLIC	Common Stock	Options Exercise	$0	+59,040	+5.4%	$0.000000	1,159,805	14 Oct 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	KLIC	Performance Share Units	Options Exercise	$0	-59,040	-100%	$0.000000	0	14 Oct 2025	Common Stock	59,040		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.

Content

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.