Synopsys shareholder Aart De Geus plans $34M stock sale

SYNOPSYS INC (SNPS) received a Rule 144 notice for a proposed resale of its common stock.

Rhea-AI Filing Summary

SYNOPSYS INC (SNPS) received a Rule 144 notice for a proposed resale of its common stock. The securities are to be sold for the account of Aart De Geus through UBS Financial Services Inc. and arise from the exercise of a stock option, with cash as the form of payment.

Key Figures

Number of shares to be sold: 74,641 shares of common stock Approximate aggregate market value: $34,472,945.85 Shares outstanding: 191,636,646 shares +2 more

5 metrics

Number of shares to be sold 74,641 shares of common stock Securities To Be Sold section for Aart De Geus under Rule 144

Approximate aggregate market value $34,472,945.85 Market value of 74,641 Synopsys common shares in Securities Information section

Shares outstanding 191,636,646 shares Total Synopsys common shares outstanding as of August 28, 2026

Issuer phone number 6505845000 Contact phone number for SYNOPSYS INC

Planned sale date reference 08/28/2026 Date listed alongside securities information and outstanding shares

Key Terms

Rule 144, Exercise of Stock Option, attorney-in-fact, Approximate aggregate market value

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Exercise of Stock Option financial

"Common | 08/28/2026 | Exercise of Stock Option | Issuer"

attorney-in-fact regulatory

"UBS Financial Services Inc. as attorney-in-fact for Aart De Geus"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

Approximate aggregate market value financial

"Common | UBS Financial Services Inc. ... | 74641 | 34472945.85"

FAQ

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

What does this Form 144 filing mean for SYNOPSYS INC (SNPS)?

It gives notice that Aart De Geus plans to sell Synopsys common stock under Rule 144. The shares relate to an exercise of a stock option and will be sold through UBS Financial Services Inc. on the NASDAQ market.

How many SYNOPSYS INC (SNPS) shares are covered by this Form 144?

The notice covers 74,641 shares of Synopsys common stock. This amount appears in the section describing the securities to be sold in connection with the exercise of a stock option.

Who is selling SYNOPSYS INC (SNPS) shares in this Form 144?

The shares are to be sold for the account of Aart De Geus. The form is signed by UBS Financial Services Inc. acting as attorney-in-fact for Aart De Geus.

What is the market context for this SYNOPSYS INC (SNPS) Form 144 sale?

The Rule 144 notice lists 74,641 shares of Synopsys common stock with an approximate aggregate market value of $34,472,945.85 and total shares outstanding of 191,636,646 as of August 28, 2026.

On which market will the SYNOPSYS INC (SNPS) shares be sold under this Form 144?

The notice identifies the trading market as NASDAQ for Synopsys common stock covered by this Rule 144 filing.

How are the SYNOPSYS INC (SNPS) shares in this Form 144 being acquired for sale?

The Rule 144 notice states that the common shares to be sold are being acquired through the exercise of a stock option, with cash listed as the nature of payment for the option exercise.

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

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Available on EDGAR 08/28/2026 - 04:15 PM EDT Accepted by SEC EDGAR 08/28/2026 - 04:14 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001249802
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	SYNOPSYS INC
SEC File Number	000-19807
Address of Issuer	675 ALMANOR AVE SUNNYVALE CALIFORNIA 94085
Phone	6505845000
Name of Person for Whose Account the Securities are To Be Sold	DE GEUS AART
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	UBS Financial Services Inc. 11 Madison Avenue 4th Floor New York NY 10010	74641	34472945.85	191636646	08/28/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/28/2026	Exercise of Stock Option	Issuer			74641	08/28/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/28/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	10/14/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ UBS Financial Services Inc. as attorney-in-fact for Aart De Geus
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)