Silvaco Group director Tewksbury sells 977 shares

Available on EDGAR 11/10/2026 - 06:49 PM EST Accepted by SEC EDGAR 11/10/2026 - 06:48 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Silvaco Group, Inc. director Ted L. Tewksbury III received an award of 1,954 shares on November 9, 2026, replacing the quarterly cash retainer earned in the third quarter of fiscal 2026 with shares valued at the retainer’s fair market value. He also sold 977 shares that day at a weighted average price of $7.3104 per share; the sales were made under a Rule 10b5-1 trading plan adopted on May 12, 2026, at prices ranging from $7.20 to $7.44 per share, inclusive.

Insider Trade Summary 10b5-1

Net Seller: 977 shares

Net Sell 2 txns

Insider Tewksbury Ted L III

Role Director

Sold 977 shs ($7K)

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	1,954	$0.00	$0.00
Sale	Common Stock F2, F3	977	$7.3104	$7K

Holdings After Transaction: Common Stock — 19,120 shares (Direct)

Footnotes (3)

1. F1. The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainer earned in the third quarter of fiscal 2026 with an award of Issuer common stock with a fair market value equal to such quarterly cash retainer.
2. F2. The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on May 12, 2026.
3. F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.20 to $7.44, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Key Figures

Shares awarded: 1,954 shares Shares sold: 977 shares Weighted average sale price: $7.3104 per share +1 more

4 metrics

Shares awarded 1,954 shares November 9, 2026

Shares sold 977 shares November 9, 2026

Weighted average sale price $7.3104 per share November 9, 2026

Sale price range $7.20 to $7.44 per share Multiple sale transactions on November 9, 2026; inclusive

Key Terms

10b5-1 trading plan, weighted average price, fair market value, non-employee director compensation plan

4 terms

10b5-1 trading plan regulatory

"pursuant to a 10b5-1 trading plan"

A 10b5-1 trading plan is a pre-arranged strategy that allows company insiders to buy or sell company stock at set times, regardless of their current knowledge about the company's situation. It acts like a scheduled appointment for trading, helping prevent the appearance of impropriety or insider trading. This plan provides a way for insiders to sell or buy shares in a controlled, transparent manner, offering reassurance to investors about fair trading practices.

weighted average price financial

"The price reported in Column 4 is a weighted average price"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

fair market value financial

"with a fair market value equal to such quarterly cash retainer"

The price a willing buyer and a willing seller would agree on for an asset or security when neither is under pressure and both have access to the same information. Think of it as the market’s neutral estimate of what something is worth, like the price two neighbors would settle on for a car after comparing similar listings. Investors care because fair market value guides buying and selling decisions, tax reporting, portfolio valuation, and how accurately company assets are reflected in financial statements.

non-employee director compensation plan financial

"amendment to the Issuer's non-employee director compensation plan"

FAQ

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

How many SVCO shares did director Ted L. Tewksbury III sell, and at what price?

Ted L. Tewksbury III sold 977 shares on November 9, 2026, at a weighted average price of $7.3104 per share. The shares were sold in multiple transactions at prices ranging from $7.20 to $7.44 per share, inclusive, under a Rule 10b5-1 trading plan adopted on May 12, 2026.

Why did Ted L. Tewksbury III receive 1,954 SVCO shares?

The shares were awarded under an amendment to the non-employee director compensation plan. The amendment replaced the quarterly cash retainer earned in the third quarter of fiscal 2026 with an award of shares having a fair market value equal to that retainer.

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

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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^*

Tewksbury Ted L III

(Last) (First) (Middle)

C/O SILVACO GROUP, INC.

4701 PATRICK HENRY DR., BLDG. #23

(Street)

SANTA CLARA CALIFORNIA 95054

(City) (State) (Zip)

UNITED STATES

(Country)

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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/09/2026

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	11/09/2026		A		1,954(1)	A	$0	20,097	D
Common Stock	11/09/2026		S(2)		977	D	$7.3104(3)	19,120	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. The shares of Issuer common stock were awarded to the Reporting Person pursuant to an amendment to the Issuer's non-employee director compensation plan providing for the replacement of the quarterly cash retainer earned in the third quarter of fiscal 2026 with an award of Issuer common stock with a fair market value equal to such quarterly cash retainer.

2. The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on May 12, 2026.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.20 to $7.44, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Remarks:

	/s/ Candace Jackson, as Attorney-in-Fact	11/10/2026
	** 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)