[Form 4] Silicon Laboratories Inc Insider Trading Activity

Rhea-AI Filing Summary

Silicon Laboratories Inc. director and Senior Vice President WW Sales & Marketing Brandon Tolany reported transactions on 08/22/2025 involving 8,000 common shares acquired and 8,000 common shares sold. Tolany exercised 8,000 non-qualified stock options with an exercise price of $43.82 per share and acquired 8,000 shares. Those same 8,000 shares were sold the same day at a weighted average price of $145.23, with individual sale prices ranging between $145.13 and $145.36. Following these transactions, Tolany’s reported beneficial ownership decreased from 70,328 shares to 62,328 shares. The Form 4 is a single-person filing and includes a handwritten signature date of 08/22/2025 by Saie-Yau Hui for Brandon Tolany.

Positive

• Full disclosure of prices: Filing provides exercise price, weighted average sale price, and range ($145.13–$145.36).
• Transaction transparency: Both the option exercise and the sale are reported on the same Form 4 with resulting share counts disclosed.

Negative

• Beneficial ownership decreased: Reported shares fell from 70,328 to 62,328 after the transactions.
• No 10b5-1 plan indicated: The filing does not state the sale was made pursuant to a Rule 10b5-1 plan (no affirmative defense box checked in provided content).

Insights

Securities Analyst

TL;DR: Insider exercised options and sold all resulting shares same day, realizing a large spread between exercise and sale prices.

The filing shows a routine option exercise and immediate sale by an officer/director: 8,000 options exercised at $43.82 and 8,000 shares sold at a weighted average of $145.23. This reduced reported beneficial ownership by 8,000 shares to 62,328. The transaction appears consistent with option-exercise liquidity or tax-management objectives rather than an unexplained divestiture. The sale prices are disclosed as a weighted average with an explicit range, enhancing transparency. No additional context (e.g., 10b5-1 plan) is stated in the filing.

Corporate Governance Expert

TL;DR: Officer conversion of options to cash was completed; disclosure meets Section 16 detail requirements.

The Form 4 records both the derivative-to-equity conversion and contemporaneous sale, including exercise price, sale weighted average price, and resulting beneficial ownership. The filing lists the reporter’s title and indicates individual filing status. The report includes an explanatory note that sale price is a weighted average and cites instruction-based NA for one field. There is no indication in the form of a breach of reporting rules or incomplete mandatory fields within the provided content.

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)
08/22/2025

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	08/22/2025		M		8,000	A	$43.82	70,328	D
Common Stock, $0.0001 par value	08/22/2025		S		8,000	D	$145.23(1)	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	08/22/2025		M			8,000	01/28/2020	01/28/2026	Common Stock, $0.0001 par value	8,000	(2)	8,000	D

Explanation of Responses:

1. Price represents the weighted average selling price. Prices range between $145.13 and $145.36.

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

Remarks:

	Saie-Yau Hui for Brandon Tolany	08/22/2025
	** 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 Brandon Tolany report on the Form 4 for SLAB?

The report shows Tolany exercised 8,000 non-qualified stock options at $43.82 per share and sold 8,000 common shares at a weighted average price of $145.23 on 08/22/2025.

How did Tolany’s beneficial ownership change after the transactions?

Beneficial ownership decreased from 70,328 shares to 62,328 shares, a reduction of 8,000 shares.

What price range is disclosed for the sale of SLAB shares?

The filing states the sale prices ranged between $145.13 and $145.36, with a weighted average sale price of $145.23.

Was the sale made under a 10b5-1 trading plan according to the Form 4?

The provided content does not indicate that the transaction was made pursuant to a Rule 10b5-1 trading plan.

What was the exercise price and exercisability/expiration details for the options?

The non-qualified stock options had an exercise price of $43.82, were dated 01/28/2020, and expire on 01/28/2026; 8,000 underlying shares are reported.