Semtech CEO Hong Q. Hou sells 2,000 shares

The October 2, 2026 sale was made under a Rule 10b5-1 plan adopted December 17, 2025.

Rhea-AI Filing Summary

Semtech Corp. (SMTC) President and CEO Hong Q. Hou converted 6,483 restricted stock units into 6,483 common shares on October 1, 2026; the derivative entry reports 19,450 restricted stock units following the conversion. On that date, 3,299 common shares were delivered or withheld for payment of exercise price or tax liability. On October 2, Hou sold 2,000 common shares at $191.21 per share under a Rule 10b5-1 trading plan adopted December 17, 2025.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 4 txns

Insider HOU HONG Q

Role President and CEO

Sold 2,000 shs ($382K)

Approx. gross sale proceeds $382K

Type	Security	Shares	Price	Value
Sale	Common Stock F1	2,000	$191.21	$382K
Exercise	Restricted Stock Unit F2, F3	6,483	$0.00	$0.00
Exercise	Common Stock	6,483	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	3,299	$178.35	$588K

Holdings After Transaction: Restricted Stock Unit — 19,450 contracts (Direct); Common Stock — 65,976 shares (Direct)

Footnotes (3)

1. F1. This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Dr. Hou on December 17, 2025.
2. F2. Each stock unit represents the contingent right to receive one share of Semtech common stock.
3. F3. One third of this grant vested on July 1, 2025 and the remainder of this grant vests in eight quarterly installments beginning on October 1, 2025.

Key Figures

Common shares sold: 2,000 shares Sale price: $191.21 per share Restricted stock units converted: 6,483 units +4 more

7 metrics

Common shares sold 2,000 shares October 2, 2026

Sale price $191.21 per share Sale on October 2, 2026

Restricted stock units converted 6,483 units October 1, 2026

Common shares acquired upon conversion 6,483 shares October 1, 2026

Restricted stock units following transaction 19,450 units Reported following the October 1, 2026 conversion

Common shares delivered or withheld 3,299 shares For payment of exercise price or tax liability on October 1, 2026

Reported price per share $178.35 per share For 3,299 common shares delivered or withheld on October 1, 2026

Key Terms

Rule 10b5-1 trading plan, contingent right, Restricted Stock Unit

3 terms

Rule 10b5-1 trading plan financial

"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.

contingent right financial

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

Restricted Stock Unit financial

"Restricted Stock Unit"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

FAQ

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

How many SMTC shares did Hong Q. Hou sell, and at what price?

Hong Q. Hou sold 2,000 common shares at $191.21 per share on October 2, 2026. The sale was made under a Rule 10b5-1 trading plan adopted on December 17, 2025.

How many SMTC restricted stock units did Hong Q. Hou convert?

On October 1, 2026, Hou converted 6,483 restricted stock units into 6,483 common shares; 19,450 restricted stock units were reported following the conversion. Separately, 3,299 common shares were delivered or withheld for payment of exercise price or tax liability.

What was the vesting schedule for Hong Q. Hou's SMTC stock units?

One third of the grant vested on July 1, 2025, and the remainder vests in eight quarterly installments beginning on October 1, 2025.

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

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Available on EDGAR 10/05/2026 - 04:02 PM Accepted by SEC EDGAR 10/05/2026 - 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)
10/01/2026

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	10/01/2026		M		6,483	A	$0	71,275	D
Common Stock	10/01/2026		F		3,299	D	$178.35	67,976	D
Common Stock	10/02/2026		S(1)		2,000	D	$191.21	65,976	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)	10/01/2026		M			6,483	(3)	(3)	Common Stock	6,483	$0	19,450	D

Explanation of Responses:

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

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

3. One third of this grant vested on July 1, 2025 and the remainder of this grant vests in eight quarterly installments beginning on October 1, 2025.

Remarks:

	/s/Hong Q. Hou by Mark Lin under Power of Attorney dated October 16, 2025 (Copy On File)	10/05/2026
	** 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)