[Form 4] SEMTECH CORP Insider Trading Activity

Rhea-AI Filing Summary

Semtech EVP and COO Asaf Silberstein reported compensation-related equity activity involving performance stock units, restricted stock units, and common shares. He exercised 9,755 restricted stock units into the same number of Semtech common shares as part of a performance award vesting for the third year of a fiscal 2024 grant.

The company withheld a total of 10,017 common shares, at prices of $85.14 and $87.58 per share, to cover tax obligations, which is not an open-market sale. Silberstein also received new grants of 15,552 restricted stock units and 9,930 shares of common stock, and now directly holds 94,313 common shares. The new grants vest over time beginning on March 10, 2026 and March 10, 2027, with remaining portions vesting in eight quarterly installments after each date.

Insider Trade Summary

9,755 shares exercised/converted

Mixed 6 txns

Insider Silberstein Asaf

Role EVP and COO

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	9,755	$0.00	--
Grant/Award	Restricted Stock Unit	15,552	$0.00	--
Exercise	Common Stock	9,755	$0.00	--
Tax Withholding	Common Stock	4,964	$85.14	$423K
Grant/Award	Common Stock	9,930	$0.00	--
Tax Withholding	Common Stock	5,053	$87.58	$443K

Holdings After Transaction: Restricted Stock Unit — 19,510 shares (Direct); Common Stock — 94,400 shares (Direct)

Footnotes (1)

1. The reporting person was granted performance stock units by Semtech in Semtech's fiscal year 2024 that are eligible to vest based on Semtech's relative total stockholder return over a period of one, two and three years. This transaction represents the payment and vesting of the awards with respect to the third year in the performance period. Each stock unit represents the contingent right to receive one share of Semtech common stock. 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. 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.

Form 4 Insider Transactions: What Each Field Means →

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
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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^*

Silberstein Asaf

(Last) (First) (Middle)

200 FLYNN ROAD

(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 COO

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		9,755	A	$0	94,400	D
Common Stock	03/10/2026		F		4,964	D	$85.14	89,436	D
Common Stock(1)	03/10/2026		A		9,930	A	$0	99,366	D
Common Stock	03/10/2026		F		5,053	D	$87.58	94,313	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	(2)	03/10/2026		M			9,755	(3)	(3)	Common Stock	9,755	$0	19,510	D
Restricted Stock Unit	(2)	03/10/2026		A		15,552		(4)	(4)	Common Stock	15,552	$0	15,552	D

Explanation of Responses:

1. The reporting person was granted performance stock units by Semtech in Semtech's fiscal year 2024 that are eligible to vest based on Semtech's relative total stockholder return over a period of one, two and three years. This transaction represents the payment and vesting of the awards with respect to the third year in the performance period.

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

3. 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.

4. 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/Asaf Silberstein by Mark Lin under Power of Attorney dated November 5, 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.
* 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).
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