Semtech CFO Mark Lin sells 967 shares under plan

The sale was made under a Rule 10b5-1 trading plan Mark Lin adopted on June 23, 2025.

Rhea-AI Filing Summary

Semtech Corp. EVP and CFO Mark Lin exercised 3,165 restricted stock units on October 1, 2026, acquiring 3,165 common shares; the reported restricted-stock-unit balance after the exercise was 0. On the same date, 1,565 shares were delivered or withheld for payment of exercise price or tax liability at $178.35 per share, and Lin sold 967 shares at $178.87 per share under a Rule 10b5-1 trading plan he adopted on June 23, 2025.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 4 txns

Insider Lin Mark

Role EVP and CFO

Sold 967 shs ($173K)

Approx. gross sale proceeds $173K

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit F2, F3	3,165	$0.00	$0.00
Exercise	Common Stock	3,165	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	1,565	$178.35	$279K
Sale	Common Stock F1	967	$178.87	$173K

Holdings After Transaction: Restricted Stock Unit — 0 contracts (Direct); Common Stock — 35,999 shares (Direct)

Footnotes (3)

1. F1. This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lin on June 23, 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 October 2, 2024 and the remainder of this grant vested in eight quarterly installments beginning on January 2, 2025.

Key Figures

Restricted stock units exercised: 3,165 restricted stock units Common shares acquired: 3,165 shares Shares delivered or withheld: 1,565 shares +3 more

6 metrics

Restricted stock units exercised 3,165 restricted stock units October 1, 2026

Common shares acquired 3,165 shares Upon exercise on October 1, 2026

Shares delivered or withheld 1,565 shares For payment of exercise price or tax liability on October 1, 2026

Reported price for delivered or withheld shares $178.35 per share October 1, 2026

Common shares sold 967 shares October 1, 2026

Sale price $178.87 per share October 1, 2026

Key Terms

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

4 terms

Restricted Stock Unit financial

"Each stock unit represents the contingent right to receive one share"

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.

Rule 10b5-1 trading plan financial

"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.

contingent right financial

"the contingent right to receive one share"

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

FAQ

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

How many SMTC shares did Mark Lin sell, and at what price?

Mark Lin sold 967 common shares on October 1, 2026, at $178.87 per share. The sale was made under a Rule 10b5-1 trading plan he adopted on June 23, 2025.

How many SMTC shares did Mark Lin acquire through his RSU exercise?

Mark Lin exercised 3,165 restricted stock units on October 1, 2026, acquiring 3,165 common shares. Each stock unit represents the contingent right to receive one share of Semtech common stock.

What happened to the 1,565 SMTC shares reported for Mark Lin on October 1, 2026?

The 1,565 shares were delivered or withheld for payment of exercise price or tax liability, at a reported $178.35 per share.

How did Mark Lin's SMTC restricted stock units vest?

One third of the grant vested on October 2, 2024, and the remainder vested in eight quarterly installments beginning on January 2, 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 - 04:02 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^*

Lin Mark

(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)

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

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		3,165	A	$0	38,531	D
Common Stock	10/01/2026		F		1,565	D	$178.35	36,966	D
Common Stock	10/01/2026		S(1)		967	D	$178.87	35,999	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			3,165	(3)	(3)	Common Stock	3,165	$0	0	D

Explanation of Responses:

1. This transaction is pursuant to a Rule 10b5-1 trading plan adopted by Mr. Lin on June 23, 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 October 2, 2024 and the remainder of this grant vested in eight quarterly installments beginning on January 2, 2025.

Remarks:

	/s/Mark Lin	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)