Semtech (SMTC) director sells 500 shares under 10b5-1 plan

Rhea-AI Filing Summary

SEMTECH CORP director Paul V. Walsh Jr. reported an open-market sale of 500 shares of common stock on May 20, 2026 at $138.21 per share. The transaction was executed under a Rule 10b5-1 trading plan adopted on July 9, 2025. After this sale, he directly holds 23,279 shares of Semtech common stock.

Insider Trade Summary 10b5-1

Net Seller: 500 shares ($69,105)

Net Sell 1 txn

Insider Walsh Paul V Jr

Role null

Sold 500 shs ($69K)

Type	Security	Shares	Price	Value
Sale	Common Stock	500	$138.21	$69K

Holdings After Transaction: Common Stock — 23,279 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 500 shares Sale price: $138.21 per share Shares held after sale: 23,279 shares +2 more

5 metrics

Shares sold 500 shares Open-market sale of Semtech common stock on May 20, 2026

Sale price $138.21 per share Price for the 500 Semtech common shares sold

Shares held after sale 23,279 shares Direct ownership by Paul V. Walsh Jr following the transaction

Net share change -500 shares Net-sell direction in transaction summary

Sell transactions count 1 transaction Single reported open-market sale in this Form 4

Key Terms

Rule 10b5-1 trading plan, open-market sale, Form 4

3 terms

Rule 10b5-1 trading plan regulatory

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

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.

open-market sale financial

"transaction_action: open-market sale; transaction_code_description: Sale in open market or private transaction"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 regulatory

"INSIDER FILING DATA (Form 4): structured data for the Semtech insider transaction"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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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
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)
05/20/2026

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	05/20/2026		S(1)		500	D	$138.21	23,279	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)	05/22/2026
	** 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)

FAQ

What insider transaction did Semtech (SMTC) report for Paul V. Walsh Jr?

Semtech director Paul V. Walsh Jr reported selling 500 shares of common stock. The transaction was an open-market sale and is disclosed on a Form 4 insider filing for transparency to shareholders and regulators.

How many Semtech (SMTC) shares did the director sell and at what price?

Paul V. Walsh Jr sold 500 shares of Semtech common stock at $138.21 per share. This reported price reflects the per-share sale value for the open-market transaction disclosed in the Form 4 filing.

How many Semtech (SMTC) shares does Paul V. Walsh Jr hold after the sale?

After the reported transaction, Paul V. Walsh Jr directly holds 23,279 shares of Semtech common stock. This post-transaction holding amount is provided in the Form 4 to show his remaining direct ownership stake.

Was the Semtech (SMTC) director’s stock sale under a Rule 10b5-1 plan?

Yes. The filing notes the sale was made pursuant to a Rule 10b5-1 trading plan adopted by Mr. Walsh on July 9, 2025. Such plans pre-schedule trades, helping separate them from short-term market timing decisions.

What type of security did the Semtech (SMTC) insider transaction involve?

The transaction involved Semtech common stock, reported as a non-derivative security. No options or other derivative securities were exercised or converted in this filing, and the derivative holdings section is shown as empty.