JOHN MICHAEL WILSON - 05 Mar 2026 Form 4 Insider Report for SEMTECH CORP (SMTC)

Role: Chief Quality Officer and CTO
Signature: /s/J.Michael Wilson by Mark Lin under Power of Attorney dated October 16, 2025 (Copy on File)
Issuer symbol: SMTC
Transactions as of: 05 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 09 Mar 2026, 16:05:01 UTC
Previous filing: 13 Jan 2026
Next filing: 10 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
WILSON JOHN MICHAEL	Chief Quality Officer and CTO	200 FLYNN ROAD, CAMARILLO	/s/J.Michael Wilson by Mark Lin under Power of Attorney dated October 16, 2025 (Copy on File)	09 Mar 2026	0001189923

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SMTC	Common Stock	Options Exercise		+12,385	+21%	$0.000000^*	72,451	05 Mar 2026	Direct
transaction	SMTC	Common Stock	Tax liability		-4,822	-6.7%	$89.75^*	67,629	05 Mar 2026	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		-12,385	-50%	$0.000000^*	12,385	05 Mar 2026	Common Stock	12,385		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	This grant vests in three annual installments beginning on March 5, 2025.