Cadence officer plans $1.67M stock sale

An officer of Cadence Design Systems plans Rule 144 sales of 6,000 CDNS shares, following recent 10b5-1 sales totaling 4,000 shares.

Rhea-AI Filing Summary

CADENCE DESIGN SYSTEMS INC (CDNS) has a notice under Rule 144 for planned sales of its common stock by an officer, Paul Cunningham. The notice covers 6,000 shares of common stock, with an aggregate market value of $1,674,360, to be sold through Morgan Stanley Smith Barney LLC on NASDAQ.

The shares include 3,000 shares to be received upon the exercise of stock options on September 15, 2026 for cash and 3,000 shares from Performance Stock Units acquired on March 15, 2024. The issuer reports 275,393,000 common shares outstanding. The notice also lists prior 10b5-1 sales in the past three months totaling 4,000 shares of common stock.

Key Figures

Shares to be sold under Rule 144: 6,000 shares Aggregate market value of shares to be sold: $1,674,360 Shares outstanding: 275,393,000 shares +4 more

7 metrics

Shares to be sold under Rule 144 6,000 shares Planned common stock sales by officer Paul Cunningham

Aggregate market value of shares to be sold $1,674,360 Value of the 6,000 CDNS shares covered by the notice

Shares outstanding 275,393,000 shares Common shares of Cadence Design Systems outstanding

Shares from stock option exercise 3,000 shares To be acquired and sold on September 15, 2026

Shares from Performance Stock Units 3,000 shares To be sold, acquired on March 15, 2024

Recent 10b5-1 sale on August 17, 2026 2,000 shares for $646,640 Reported sale of CDNS common stock in past three months

Recent 10b5-1 sale on July 15, 2026 2,000 shares for $766,720 Reported sale of CDNS common stock in past three months

Key Terms

Rule 144, 10b5-1, Performance Stock Units, Exercise of Stock Options

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.

10b5-1 regulatory

"10b5-1 Sales for PAUL A 2655 Seely Avenue, Building 5, San Jose"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Performance Stock Units financial

"Common | 03/15/2024 | Performance Stock Units | Issuer"

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

Exercise of Stock Options financial

"Common | 09/15/2026 | Exercise of Stock Options | Issuer"

FAQ

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

What does the Form 144 filing for CDNS disclose about upcoming share sales?

The Form 144 notice discloses planned sales of 6,000 shares of Cadence Design Systems common stock by officer Paul Cunningham under Rule 144, with an aggregate market value of $1,674,360, to be sold through Morgan Stanley Smith Barney LLC on NASDAQ.

How many CDNS shares are covered by this Rule 144 notice and what is their value?

The notice covers 6,000 shares of Cadence Design Systems common stock with an aggregate market value of $1,674,360, as stated in the securities information section.

What types of equity awards are being sold under this CDNS Form 144?

The planned sales include 3,000 shares to be received from the exercise of stock options on September 15, 2026, and 3,000 shares from Performance Stock Units acquired on March 15, 2024.

What recent sales by the same officer in CDNS shares are reported in the Form 144?

The notice reports 10b5-1 sales of Cadence Design Systems common stock by Paul Cunningham of 2,000 shares on August 17, 2026 for $646,640 and 2,000 shares on July 15, 2026 for $766,720, totaling 4,000 shares sold in the past three months.

How many CDNS shares are outstanding according to this Form 144?

The Form 144 lists 275,393,000 shares of Cadence Design Systems common stock as outstanding, providing context for the relative size of the planned 6,000-share sale.

Who is the broker for the CDNS shares to be sold under this Form 144?

The planned sales will be executed through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, New York, as listed in the securities information section.

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

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Available on EDGAR 09/15/2026 - 04:50 PM Accepted by SEC EDGAR 09/15/2026 - 04:50 PM 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	0001847883
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	CADENCE DESIGN SYSTEMS, INC.
SEC File Number	000-15867
Address of Issuer	2655 Seely Avenue, Building 5, San Jose CALIFORNIA 95134
Phone	4089431234
Name of Person for Whose Account the Securities are To Be Sold	PAUL CUNNINGHAM
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

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	6000	1674360.00	275393000	09/15/2026	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	09/15/2026	Exercise of Stock Options	Issuer			3000	09/15/2026	Cash
Common	03/15/2024	Performance Stock Units	Issuer			3000	03/15/2024	N/A

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for PAUL A CUNNINGHAM 2655 Seely Avenue, Building 5, San Jose CA 95134	Common	08/17/2026	2000	646640.00
10b5-1 Sales for PAUL A CUNNINGHAM 2655 Seely Avenue, Building 5, San Jose CA 95134	Common	07/15/2026	2000	766720.00

144: Remarks and Signature

Remarks	The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.
Date of Notice	09/15/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/16/2026
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/ Paul Cunningham
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)