Semtech CEO sells $277K in stock under plan

Semtech’s President and CEO executed a small 10b5-1 planned sale of 2,000 shares, retaining 60,799 shares afterward.

Rhea-AI Filing Summary

SEMTECH CORP (SMTC) reported that President and CEO Dr. Hong Q. Hou sold 2,000 shares of common stock on September 4, 2026 in an open-market transaction at $138.71 per share. After this sale, Dr. Hou directly holds 60,799 shares of Semtech common stock. The sale was made pursuant to a Rule 10b5-1 trading plan adopted on December 17, 2025.

Insider Trade Summary 10b5-1

Net Seller: 2,000 shares

Net Sell 1 txn

Insider HOU HONG Q

Role President and CEO

Sold 2,000 shs ($277K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	2,000	$138.71	$277K

Holdings After Transaction: Common Stock — 60,799 shares (Direct)

Footnotes (1)

1. F1. This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Dr. Hou on December 17, 2025.

Key Figures

Shares sold: 2,000 shares Sale price per share: $138.71 per share Approximate transaction value: $277,420 +2 more

5 metrics

Shares sold 2,000 shares Common stock sale by the President and CEO on September 4, 2026

Sale price per share $138.71 per share Price for the 2,000 common shares sold on September 4, 2026

Approximate transaction value $277,420 2,000 shares sold at $138.71 per share

Shares held after transaction 60,799 shares Direct common stock holdings of the President and CEO after the sale

Rule 10b5-1 plan adoption date December 17, 2025 Date the CEO’s trading plan governing this sale was adopted

Key Terms

Rule 10b5-1 trading plan, open-market transaction

2 terms

Rule 10b5-1 trading plan regulatory

"This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Dr. Hou"

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 transaction market

"Sale in open market or private transaction"

An open-market transaction is a buy or sell of a company's shares or other securities conducted on a public exchange at the current market price, rather than through a private agreement. Investors watch these trades because they change the number of shares available and can move the price immediately—similar to how a large purchase at a busy store can raise demand and affect the checkout price—so such activity can signal market sentiment and alter ownership stakes.

FAQ

What insider transaction did Semtech (SMTC) disclose for Dr. Hong Q. Hou?

Semtech disclosed that President and CEO Dr. Hong Q. Hou sold 2,000 shares of common stock on September 4, 2026 in an open-market transaction at $138.71 per share under a pre-arranged Rule 10b5-1 trading plan.

How many Semtech (SMTC) shares does the CEO hold after the reported sale?

After the September 4, 2026 sale, President and CEO Dr. Hong Q. Hou directly holds 60,799 shares of Semtech common stock, as reported in the filing.

What was the approximate dollar value of the CEO’s Semtech (SMTC) share sale?

The reported sale of 2,000 shares at $138.71 per share represents an approximate transaction value of $277,420, based on the disclosed share count and price.

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

Yes. The filing states the transaction was made pursuant to a Rule 10b5-1 trading plan adopted by Dr. Hong Q. Hou on December 17, 2025.

Does the Semtech (SMTC) Form 4 report any stock purchases by insiders?

No. The Form 4 reports one sale transaction by President and CEO Dr. Hong Q. Hou and does not report any insider stock purchases.

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

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Available on EDGAR 09/09/2026 - 04:02 PM Accepted by SEC EDGAR 09/09/2026 - 04:01 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^*

HOU HONG Q

(Last) (First) (Middle)

200 FLYNN RD.

(Street)

CAMARILLO CALIFORNIA 93012-8790

(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
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/04/2026

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	09/04/2026		S(1)		2,000	D	$138.71	60,799	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 Dr. Hou on December 17, 2025.

Remarks:

	/s/Hong Q. Hou by Mark Lin under Power of Attorney dated October 16, 2025 (Copy On File)	09/09/2026
	** 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.
* Form 4: SEC 1474 (03-26)