[Form 4] SEMTECH CORP Insider Trading Activity

Rhea-AI Filing Summary

Semtech EVP and CCO Jason Elliot Green reported compensation-related equity activity. He exercised 10,043 Restricted Stock Units, receiving the same number of Semtech common shares. To cover tax obligations, 2,497 common shares were withheld at $85.14 per share, leaving 7,546 common shares directly held.

Green also received a new grant of 11,520 Restricted Stock Units, each representing the contingent right to one Semtech common share. One third of one RSU grant vests on March 10, 2026 with the remainder vesting quarterly from June 10, 2026, and another grant vests one third on March 10, 2027 with the remainder vesting quarterly from June 10, 2027.

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

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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^*

Green Jason Elliot

(Last) (First) (Middle)

200 FLYNN RD.

(Street)

CAMARILLO CA 93012-8790

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SEMTECH CORP [ SMTC ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and CCO

3. Date of Earliest Transaction (Month/Day/Year)
03/10/2026

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

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

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

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/10/2026		M		10,043	A	$0	10,043	D
Common Stock	03/10/2026		F		2,497	D	$85.14	7,546	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	(1)	03/10/2026		M			10,043	(2)	(2)	Common Stock	10,043	$0	20,086	D
Restricted Stock Unit	(1)	03/10/2026		A		11,520		(3)	(3)	Common Stock	11,520	$0	11,520	D

Explanation of Responses:

1. Each stock unit represents the contingent right to receive one share of Semtech common stock.

2. One third of this grant vests on March 10, 2026 and the remainder of this grant vests in eight quarterly installments beginning on June 10, 2026.

3. One third of this grant vests on March 10, 2027 and the remainder of this grant vests in eight quarterly installments beginning on June 10, 2027.

Remarks:

	/s/Jason Green by Mark Lin under Power of Attorney dated October 16, 2025 (Copy on File)	03/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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