Semtech (SMTC) COO converts RSUs to stock and withholds shares for taxes

Rhea-AI Filing Summary

Semtech Corp EVP and COO Asaf Silberstein reported equity transactions involving restricted stock units and common shares. On March 5, 2026, he exercised derivative securities covering 17,773 restricted stock units, which converted into 17,773 shares of Semtech common stock at a stated price of $0.0000 per share.

After this conversion, his directly held common stock increased to 86,269 shares before a separate tax transaction. On the same date, 7,585 common shares were disposed of at $89.7500 per share in a tax-withholding disposition related to the equity award, leaving 78,684 common shares directly owned following these transactions. Each stock unit represents the contingent right to receive one share of Semtech common stock, and the grant vests in three annual installments beginning on March 5, 2025.

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^*

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)
03/05/2026

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	03/05/2026		M		17,773	A	$0	86,269	D
Common Stock	03/05/2026		F		7,585	D	$89.75	78,684	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)	03/05/2026		M			17,773	(2)	(2)	Common Stock	17,773	$0	17,774	D

Explanation of Responses:

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

2. This grant vests in three annual installments beginning on March 5, 2025.

Remarks:

	/s/Asaf Silberstein by Mark Lin under Power of Attorney dated November 5, 2025 (Copy On File)	03/09/2026
	** 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.

FAQ

What insider transactions did Semtech (SMTC) EVP and COO Asaf Silberstein report?

Asaf Silberstein reported exercising 17,773 restricted stock units into 17,773 Semtech common shares, then disposing of 7,585 shares in a tax-withholding transaction. These moves reflect equity award activity rather than open-market buying or selling of Semtech stock.

How many Semtech (SMTC) shares does Asaf Silberstein own after the reported Form 4 transactions?

After the reported transactions, Asaf Silberstein directly owns 78,684 shares of Semtech common stock. This follows the conversion of 17,773 restricted stock units into common shares and a separate 7,585-share disposition to cover tax obligations tied to the equity award.

What type of equity awards did Semtech (SMTC) grant to EVP and COO Asaf Silberstein?

Semtech granted restricted stock units to Asaf Silberstein, with each unit representing a contingent right to receive one share of Semtech common stock. The grant is scheduled to vest in three annual installments beginning on March 5, 2025, subject to its terms.

Was the Semtech (SMTC) insider share disposition an open-market sale?

The 7,585 Semtech shares were disposed of as a tax-withholding transaction, not an open-market sale. The shares were delivered at $89.7500 per share to satisfy tax liability related to the equity award exercise, according to the Form 4 transaction code and description.

How do the Semtech (SMTC) restricted stock units for Asaf Silberstein vest over time?

The restricted stock unit grant to Asaf Silberstein vests in three annual installments beginning on March 5, 2025. As each installment vests, the corresponding units convert into shares of Semtech common stock, consistent with the grant’s contingent right structure described in the filing.