Kulicke & Soffa SVP receives 9,498 performance shares

Q: How many KLIC shares did Robert Nestor Chylak receive from performance units?

The PSU payout resulted in 9,498 common shares issued on October 11, 2026. The units achieved a 148% payout based on total shareholder return relative to a peer group measured over three years, and each PSU converts into one common share.

Q: How many KLIC shares were withheld for taxes?

The issuer withheld 3,338 shares for tax obligations related to the PSU issuance and 610 shares related to vesting of 2,139 restricted stock units. The RSUs were connected to a 6,417-share award granted October 11, 2023.

A three-year relative total shareholder return measure set the PSU payout, while shares were withheld for taxes on the PSU issuance and RSU vesting.

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Rhea-AI Filing Summary

Kulicke & Soffa Industries Inc. Senior Vice President Robert Nestor Chylak reported a payout of 9,498 Performance Share Units on October 11, 2026, with shares issued following certification. The units, awarded October 11, 2023, achieved a 148% payout based on total shareholder return relative to a peer group over three years; each unit converts into one common share. The issuer withheld 3,338 shares for taxes tied to the PSU issuance and 610 shares for taxes tied to vesting of 2,139 restricted stock units from a 6,417-share award granted October 11, 2023.

Insider Trade Summary

9,498 shares exercised/converted

Exercise 4 txns

Insider Chylak Robert Nestor

Role Senior Vice President

Type	Security	Shares	Price	Value
Exercise	Performance Share Units ^F1	9,498	$0.00	$0.00
Exercise	Common Stock ^F1	9,498	$0.00	$0.00
Tax Withholding	Common Stock ^F2	3,338	$47.44	$158K
Tax Withholding	Common Stock ^F3	610	$47.44	$29K

Holdings After Transaction: Performance Share Units — 0 contracts (Direct); Common Stock — 28,537 shares (Direct)

Footnotes (3)

F1. Performance Share Units (PSUs) awarded October 11, 2023, achieved a 148% 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 payout was certified, and shares issued on October 11, 2026. Each PSU is convertible to one share of common stock.
F2. Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with issuance of 9,498 shares of common stock arising from payout under Performance Share Units (PSUs) awarded on October 11, 2023. The payout was certified, and the shares were issued on October 11, 2026, each PSU convertible into one share of common stock. These shares that were withheld were not issued to or sold by the Reporting Person.
F3. Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 2,139 restricted stock units (RSUs) on October 11, 2026. This RSU vesting is in connection to an RSU award granted on October 11, 2023 of 6,417 shares. These shares that were withheld were not issued to or sold by the Reporting Person.

Key Figures

Common shares issued from PSU payout: 9,498 shares PSU payout: 148% Shares withheld for PSU tax obligations: 3,338 shares +4 more

7 metrics

Common shares issued from PSU payout 9,498 shares Payout certified and shares issued October 11, 2026

PSU payout 148% Based on total shareholder return relative to a peer group over three years

Shares withheld for PSU tax obligations 3,338 shares Withheld in connection with the PSU payout

Shares withheld for RSU tax obligations 610 shares Withheld in connection with RSU vesting

Restricted stock units vesting 2,139 RSUs Vested October 11, 2026

RSU award 6,417 shares Award granted October 11, 2023

Performance measurement period Three years Relative total shareholder return measurement

Key Terms

Performance Share Units (PSUs), total shareholder return (TSR), restricted stock units (RSUs)

3 terms

total shareholder return (TSR) financial

"148% payout based on total shareholder return (TSR) relative to a peer group"

Total shareholder return (TSR) measures how much an investment in a company's stock has grown over a specific period by combining the change in the share price and all dividends paid, expressed as a percentage. Think of it like tracking the total balance of a savings jar that increases both from added cash (dividends) and a rising sticker price on the jar (share price); investors use TSR to compare how well different stocks or managers deliver real, money-in-hand returns.

restricted stock units (RSUs) financial

"vesting of 2,139 restricted stock units (RSUs)"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many KLIC shares did Robert Nestor Chylak receive from performance units?

The PSU payout resulted in 9,498 common shares issued on October 11, 2026. The units achieved a 148% payout based on total shareholder return relative to a peer group measured over three years, and each PSU converts into one common share.

How many KLIC shares were withheld for taxes?

The issuer withheld 3,338 shares for tax obligations related to the PSU issuance and 610 shares related to vesting of 2,139 restricted stock units. The RSUs were connected to a 6,417-share award granted October 11, 2023.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/13/2026 - 09:38 AM EDT Accepted by SEC EDGAR 10/13/2026 - 09:37 AM EDT

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Chylak Robert Nestor

(Last)

(First)

(Middle)

1005 VIRGINIA DRIVE

(Street)

FORT WASHINGTON

PENNSYLVANIA

19034

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
KULICKE & SOFFA INDUSTRIES INC [ KLIC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Senior Vice President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/11/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/11/2026		M		9,498⁽¹⁾	A	$0	32,485	D
Common Stock	10/11/2026		F		3,338⁽²⁾	D	$47.44	29,147	D
Common Stock	10/11/2026		F		610⁽³⁾	D	$47.44	28,537	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Performance Share Units	⁽¹⁾	10/11/2026		M			9,498	⁽¹⁾	⁽¹⁾	Common Stock	9,498	$0	0	D

Explanation of Responses:

1. Performance Share Units (PSUs) awarded October 11, 2023, achieved a 148% 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 payout was certified, and shares issued on October 11, 2026. Each PSU is convertible to one share of common stock.

2. Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with issuance of 9,498 shares of common stock arising from payout under Performance Share Units (PSUs) awarded on October 11, 2023. The payout was certified, and the shares were issued on October 11, 2026, each PSU convertible into one share of common stock. These shares that were withheld were not issued to or sold by the Reporting Person.

3. Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 2,139 restricted stock units (RSUs) on October 11, 2026. This RSU vesting is in connection to an RSU award granted on October 11, 2023 of 6,417 shares. These shares that were withheld were not issued to or sold by the Reporting Person.

Remarks:

	Zi Yao Lim, Attorney-in-Fact for Robert Nestor Chylak	10/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR