Hong Q. Hou - 01 Oct 2025 Form 4 Insider Report for SEMTECH CORP (SMTC)

Role: President and CEO, Director
Signature: /s/Hong Q. Hou by Jeffrey Gutierrez under Power of Attorney dated October 6, 2023 (Copy On File)
Issuer symbol: SMTC
Transactions as of: 01 Oct 2025
Net transactions value: -$235,285
Form type: 4
Filing time: 03 Oct 2025, 16:05:14 UTC
Previous filing: 07 Oct 2025
Next filing: 05 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
HOU HONG Q	President and CEO, Director	200 FLYNN RD., CAMARILLO	/s/Hong Q. Hou by Jeffrey Gutierrez under Power of Attorney dated October 6, 2023 (Copy On File)	03 Oct 2025	0001156899

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SMTC	Common Stock	Options Exercise	$0	+6,483	+23%	$0.000000	34,852	01 Oct 2025	Direct
transaction	SMTC	Common Stock	Tax liability	$235,285	-3,293	-9.4%	$71.45	31,559	01 Oct 2025	Direct

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	SMTC	Restricted Stock Unit	Options Exercise	$0	-6,483	-12%	$0.000000	45,383	01 Oct 2025	Common Stock	6,483		Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Each stock unit represents the contingent right to receive one share of Semtech common stock.
F2	One third of this grant vested on July 1, 2025 and the remainder of this grant vests in eight quarterly installments beginning on October 1, 2025.