Silvaco CEO awarded 28,170 RSUs in stock grant

RHINES WALDEN C reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

RHINES WALDEN C reported acquisition or exercise transactions in this Form 4 filing.

Silvaco Group, Inc. director and Chief Executive Officer Walden C. Rhines received an equity grant in the form of 28,170 shares of common stock on February 21, 2026 at a stated price of $0.00 per share, increasing his directly held common stock to 134,088 shares after the award.

According to the accompanying disclosure, the grant represents restricted stock units (RSUs) issued under an employment agreement effective August 19, 2025, with each RSU convertible into one share of common stock. These RSUs are scheduled to vest on March 31, 2027, with vesting accelerating if Silvaco terminates his employment for any reason or if he resigns after an uncured material breach of the agreement by the company before that vesting date.

Insider Trade Summary

Grant/Award: 28,170 shares

Grant/Award 1 txn

Insider RHINES WALDEN C

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	28,170	$0.00	$0.00

Holdings After Transaction: Common Stock — 134,088 shares (Direct)

Footnotes (1)

1. F1. Represents Restricted Stock Units ("RSUs") granted to the Reporting Person pursuant to that certain Employment Agreement, effective as of August 19, 2025 (the "Agreement"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs were granted on February 21, 2026, and will vest on March 31, 2027, provided that the vesting of the RSUs shall be accelerated in the event the Issuer terminates the Reporting Person's employment for any reason or the Reporting Person terminates his employment following a material breach of the Agreement by the Issuer which is not cured within 30 days after the Reporting Person provides written notice, in each case, prior to March 31, 2027.

FAQ

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What did Silvaco (SVCO) CEO Walden C. Rhines report on this Form 4?

Walden C. Rhines reported receiving a grant of 28,170 restricted stock units tied to Silvaco common stock. The award was granted on February 21, 2026, and reflects equity-based compensation rather than an open-market stock purchase.

How many Silvaco (SVCO) shares does the CEO hold after this RSU grant?

Following the reported grant, Walden C. Rhines beneficially owns 134,088 shares of Silvaco common stock in direct form. This total includes the 28,170 restricted stock units that can each convert into one share upon vesting under the grant terms.

What are the vesting terms for the 28,170 Silvaco (SVCO) RSUs granted to the CEO?

The 28,170 restricted stock units granted to Walden C. Rhines are scheduled to vest on March 31, 2027. Each RSU converts into one share of common stock when vested, subject to the service and acceleration conditions described in his employment agreement.

Is there accelerated vesting on the Silvaco (SVCO) RSUs awarded to the CEO?

Yes. Vesting of the RSUs accelerates if Silvaco terminates Walden C. Rhines’ employment for any reason before March 31, 2027. Acceleration also applies if he resigns after a material breach of his employment agreement by Silvaco that remains uncured for 30 days.

How is the RSU grant to Silvaco (SVCO) CEO Walden C. Rhines structured?

The grant consists of 28,170 restricted stock units awarded at a stated price of $0.00 per share. Each RSU represents a contingent right to receive one Silvaco common share, aligning his compensation with the company’s equity performance over the vesting period.

What agreement governs the Silvaco (SVCO) CEO’s new RSU grant?

The restricted stock units were granted under an employment agreement effective August 19, 2025. That agreement outlines the RSU terms, including the grant on February 21, 2026, vesting on March 31, 2027, and the specific conditions that can trigger accelerated vesting.

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Accepted by SEC EDGAR 03/02/2026 - 04:34 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).

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^*

RHINES WALDEN C

(Last) (First) (Middle)

C/O SILVACO GROUP, INC.

4701 PATRICK HENRY DRIVE, BUILDING #23

(Street)

SANTA CLARA CA 95054

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Silvaco Group, Inc. [ SVCO ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/21/2026

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	02/21/2026		A		28,170(1)	A	$0	134,088	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. Represents Restricted Stock Units ("RSUs") granted to the Reporting Person pursuant to that certain Employment Agreement, effective as of August 19, 2025 (the "Agreement"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs were granted on February 21, 2026, and will vest on March 31, 2027, provided that the vesting of the RSUs shall be accelerated in the event the Issuer terminates the Reporting Person's employment for any reason or the Reporting Person terminates his employment following a material breach of the Agreement by the Issuer which is not cured within 30 days after the Reporting Person provides written notice, in each case, prior to March 31, 2027.

Remarks:

	/s/ Candace Jackson, as Attorney-in-Fact	03/02/2026
	** 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.