Semtech director Paul Walsh sells 500 shares

SEMTECH CORP director Paul V. Walsh Jr. sold 500 shares of common stock at $172.61 per share on September 23, 2026, under a Rule 10b5-1 trading plan adopted July 9, 2025.

Rhea-AI Filing Summary

SEMTECH CORP director Paul V. Walsh Jr. sold 500 shares of common stock at $172.61 per share on September 23, 2026, under a Rule 10b5-1 trading plan adopted July 9, 2025. His direct holdings after the sale were 26,600 shares.

Insider Trade Summary 10b5-1

Net Seller: 500 shares

Net Sell 1 txn

Insider Walsh Paul V Jr

Role Director

Sold 500 shs ($86K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	500	$172.61	$86K

Holdings After Transaction: Common Stock — 26,600 shares (Direct)

Footnotes (1)

1. F1. This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Walsh on July 9, 2025.

Key Figures

Shares sold: 500 shares Sale price: $172.61 per share Direct holdings after sale: 26,600 shares

3 metrics

Shares sold 500 shares September 23, 2026

Sale price $172.61 per share September 23, 2026

Direct holdings after sale 26,600 shares After the September 23, 2026 sale

Key Terms

Rule 10b5-1 trading plan

1 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many SMTC shares did Paul V. Walsh Jr. sell, and at what price?

Paul V. Walsh Jr., a Semtech director, sold 500 shares at $172.61 per share on September 23, 2026. His direct holdings after the sale were 26,600 shares.

Was the SMTC director's sale made under a trading plan?

Yes. The sale was made under a Rule 10b5-1 trading plan adopted by Mr. Walsh on July 9, 2025.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/25/2026 - 04:30 PM Accepted by SEC EDGAR 09/25/2026 - 04:05 PM Learn about SEC filing dates

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
Estimated average burden
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).

X

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^*

Walsh Paul V Jr

(Last) (First) (Middle)

200 FLYNN RD.

(Street)

CAMARILLO CALIFORNIA 93012

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/23/2026

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

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

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

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	09/23/2026		S(1)		500	D	$172.61	26,600	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

Explanation of Responses:

1. This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Walsh on July 9, 2025.

Remarks:

	/s/Paul V. Walsh Jr. by Mark Lin under Power of Attorney dated October 6, 2023 (Copy On File)	09/25/2026
	** 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.
* Form 4: SEC 1474 (03-26)