[Form 4] Silicon Laboratories Inc Insider Trading Activity

Rhea-AI Filing Summary

Tolany Brandon, Sr VP WW Sales & Marketing at Silicon Laboratories Inc. (SLAB), reported transactions on 08/19/2025 involving exercises of stock options and an open-market sale. The filing shows exercises of two non-qualified stock options at an exercise price of $43.82 each, resulting in the acquisition of 35 and 2,235 shares. The filing also reports a sale of 2,270 shares at $132.69. After these transactions, the reported beneficial ownership totals are shown as 62,328 shares (final reported balance). The option grants cited have original grant dates of 01/28/2019 and 01/28/2020 with expiration 01/28/2026.

Positive

• Options exercised at a modest exercise price of $43.82, indicating cost-effective conversion of equity to stock
• Substantial retained ownership with a reported final beneficial ownership of 62,328 shares after transactions
• Complete disclosure including grant dates (01/28/2019 and 01/28/2020) and expiration (01/28/2026)

Negative

• Insider sale of 2,270 shares at $132.69 reduces the officer's liquid equity position
• Filing does not state whether the sale was pursuant to a 10b5-1 trading plan (no box checked to indicate plan usage)

Insights

Financial Analyst

TL;DR: Insider exercised options at $43.82, sold a portion at $132.69, and still holds a material number of shares.

The filing documents routine insider option exercises and a contemporaneous sale. Exercising options at $43.82 and selling shares at $132.69 realizes cash proceeds while retaining substantial ownership (reported final balance 62,328 shares). For investors, these actions are transactional and reflect liquidity-taking by the officer rather than new information about operations or guidance. The transactions are within typical executive compensation and exercising windows given the options' 2019 and 2020 grant dates and 2026 expirations.

Corporate Governance Expert

TL;DR: Transactions appear compliant and disclosed; they show expected exercising of vested options and a partial sale.

The Form 4 lists option exercises and an open-market sale by a named officer and is signed by an agent. The disclosure includes grant and expiration dates for the non-qualified options and reports post-transaction beneficial ownership figures. There is no indication in the filing of Rule 10b5-1 plan use or any amendment; the form checks one reporting person. From a governance viewpoint, the filing is complete with required details and shows standard executive equity activity.

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).

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^*

Tolany Brandon

(Last) (First) (Middle)

400 WEST CESAR CHAVEZ STREET

(Street)

AUSTIN TX 78701

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SILICON LABORATORIES INC. [ SLAB ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Sr VP WW Sales & Marketing

3. Date of Earliest Transaction (Month/Day/Year)
08/19/2025

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

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

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

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, $0.0001 par value	08/19/2025		M		35	A	$43.82	62,363	D
Common Stock, $0.0001 par value	08/19/2025		M		2,235	A	$43.82	64,598	D
Common Stock, $0.0001 par value	08/19/2025		S		2,270	D	$132.69	62,328	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
Non-Qualified Stock Option (right to buy)	$43.82	08/19/2025		M			35	01/28/2019	01/28/2026	Common Stock, $0.0001 par value	35	(1)	18,235	D
Non-Qualified Stock Option (right to buy)	$43.82	08/19/2025		M			2,235	01/28/2020	01/28/2026	Common Stock, $0.0001 par value	2,235	(1)	16,000	D

Explanation of Responses:

1. Not applicable per instruction 4(c)(iii).

Remarks:

	Saie-Yau Hui for Brandon Tolany	08/19/2025
	** 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.

FAQ

What transactions did Tolany Brandon report on Form 4 for SLAB?

The Form 4 reports exercise of two non-qualified stock options at $43.82 resulting in acquisition of 35 and 2,235 shares, and an open-market sale of 2,270 shares at $132.69 on 08/19/2025.

How many SLAB shares does Tolany Brandon beneficially own after these transactions?

The filing shows a final reported beneficial ownership of 62,328 shares following the reported transactions.

What were the grant and expiration dates for the exercised options?

The exercised non-qualified stock options have grant dates of 01/28/2019 (35 shares) and 01/28/2020 (2,235 shares) with an expiration date of 01/28/2026.

Was the sale reported as part of a 10b5-1 trading plan?

The Form 4 does not indicate that the transaction was made pursuant to a 10b5-1 plan; the filing provides no box checked to show plan reliance.

Who signed the Form 4 on behalf of the reporting person?

The filing is signed by Saie-Yau Hui for Brandon Tolany and dated 08/19/2025.