Silicon Labs director gets 962-share RSU grant

BOCK WILLIAM G reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

BOCK WILLIAM G reported acquisition or exercise transactions in this Form 4 filing.

Silicon Laboratories Inc. director William G. Bock reported an equity compensation grant. He received 962 shares of common stock in the form of restricted stock units on April 23, 2026, at a stated price of $0.00 per share.

Each RSU entitles him to one share of common stock. The RSUs will vest in full on the earlier of the first anniversary of the grant date or one day prior to the company’s next Annual Meeting of Stockholders following the grant. After this award, Bock directly holds 33,920 shares of common stock.

Insider Trade Summary

Grant/Award: 962 shares

Grant/Award 1 txn

Insider BOCK WILLIAM G

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, $0.0001 par value	962	$0.00	$0.00

Holdings After Transaction: Common Stock, $0.0001 par value — 33,920 shares (Direct)

Footnotes (1)

1. F1. Reflects the grant of restricted stock units (RSUs) that will entitle Reporting Person to receive one (1) share of common stock per RSU. The RSUs will vest completely on the earlier of (i) the first (1st) anniversary of the date of grant, and (ii) the date one day prior to the Annual Meeting of Stockholders in the year following the grant date.

Key Figures

RSUs granted: 962 shares Grant price: $0.00 per share Shares held after transaction: 33,920 shares +1 more

4 metrics

RSUs granted 962 shares Restricted stock units granted on April 23, 2026

Grant price $0.00 per share Stated price for RSU award

Shares held after transaction 33,920 shares Total direct common stock holdings following grant

Vesting condition Earlier of 1st anniversary or day before next annual meeting Full vesting schedule for 962 RSUs

Key Terms

restricted stock units (RSUs), Annual Meeting of Stockholders, par value

3 terms

restricted stock units (RSUs) financial

"Reflects the grant of restricted stock units (RSUs) that will entitle Reporting Person to receive one (1) share"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

Annual Meeting of Stockholders financial

"the date one day prior to the Annual Meeting of Stockholders in the year following the grant date"

par value financial

"Common Stock, $0.0001 par value"

Par value is the fixed amount printed on a bond or stock that represents its original value when issued. It’s like the face value of a coin or bill—what the issuer promises to pay back or the starting price of a stock—though it often doesn’t change with market prices. It matters because it helps determine certain financial details, like how much the company will pay back at maturity.

FAQ

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

What insider transaction did SLAB director William G. Bock report?

William G. Bock reported receiving an equity award of 962 restricted stock units from Silicon Laboratories Inc. This grant is compensation rather than an open-market purchase and increases his direct holdings to 33,920 common shares after the transaction.

How many RSUs did William G. Bock receive from Silicon Laboratories (SLAB)?

He received 962 restricted stock units, each representing one share of Silicon Laboratories common stock. The award was reported at a stated price of $0.00 per share as part of his director compensation, not as a market purchase of existing shares.

When do William G. Bock’s new RSUs at SLAB vest?

The 962 RSUs will fully vest on the earlier of the first anniversary of the April 23, 2026 grant date or one day before the company’s next Annual Meeting of Stockholders held in the year following the grant date, according to the disclosure.

How many Silicon Laboratories shares does William G. Bock hold after this Form 4?

Following the reported award, William G. Bock directly holds 33,920 shares of Silicon Laboratories common stock. This total includes the impact of the newly granted restricted stock units once they settle into common shares upon vesting under the award terms.

Was William G. Bock’s SLAB transaction a market buy or compensation grant?

The transaction was a compensation-related grant, not a market purchase. It is coded as an acquisition by grant or award, with 962 restricted stock units issued at a stated price of $0.00 per share as part of his role as a director.

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

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Accepted by SEC EDGAR 04/24/2026 - 11:25 AM EDT 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).

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^*

BOCK WILLIAM G

(Last) (First) (Middle)

400 WEST CESAR CHAVEZ

(Street)

AUSTIN TEXAS 78701

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/23/2026

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, $0.0001 par value	04/23/2026		A		962(1)	A	$0	33,920	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. Reflects the grant of restricted stock units (RSUs) that will entitle Reporting Person to receive one (1) share of common stock per RSU. The RSUs will vest completely on the earlier of (i) the first (1st) anniversary of the date of grant, and (ii) the date one day prior to the Annual Meeting of Stockholders in the year following the grant date.

Remarks:

	Saie-Yau Hui for William G. Bock	04/23/2026
	** 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)