8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT PURSUANT TO

SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): May 7, 2026

CADENCE DESIGN SYSTEMS, INC.

(Exact Name of Registrant as Specified in its Charter)

2655 Seely Avenue, San Jose, California 95134

(Address of Principal Executive Offices) (Zip Code)

(408) 943-1234

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(e) Amendment of the Omnibus Equity Incentive Plan

As described in Item 5.07 below, at the Annual Meeting of Stockholders of Cadence Design Systems, Inc. (“Cadence”) held on May 7, 2026 (the “2026 Annual Meeting”), Cadence stockholders approved an amendment of Cadence’s Omnibus Equity Incentive Plan (the “Omnibus Plan”). The board of directors of Cadence (the “Board”) had previously approved the amendment of the Omnibus Plan on February 12, 2026, subject to stockholder approval. The amendment includes the following material changes: (i) increases the number of shares of common stock authorized for issuance under the Omnibus Plan by 5,000,000 shares; (ii) eliminates the fixed term of the Omnibus Plan, which would otherwise end on April 30, 2030, such that the Omnibus Plan would continue in effect until terminated by the Board or until all available shares are issued, if earlier; and (iii) modifies certain other provisions related to the administration and interpretation of the Omnibus Plan.

A more detailed description of the Omnibus Plan and related matters was set forth in Cadence’s Proxy Statement on Schedule 14A, which was filed with the U.S. Securities and Exchange Commission on March 25, 2026 (the “Proxy Statement”), under the heading “Proposal 2: Approval of the Amendment of the Omnibus Equity Incentive Plan” and is incorporated herein by reference. The foregoing summary and the summary set forth in the Proxy Statement do not purport to be a complete description of the Omnibus Plan. They are qualified in their entirety by reference to the text of the Omnibus Plan, which is set forth in Appendix A to the Proxy Statement.

Item 5.07. Submission of Matters to a Vote of Security Holders.

At the 2026 Annual Meeting, Cadence stockholders voted on the following proposals, which are described in detail in the Proxy Statement.

1.A proposal to elect the eleven (11) directors named in the Proxy Statement to serve until the 2027 Annual Meeting of Stockholders and until their successors are elected and qualified, or until the director’s earlier death, resignation or removal. Each of the eleven (11) director nominees named in the Proxy Statement was elected as set forth below:

2.A proposal to approve the amendment of the Omnibus Equity Incentive Plan. This proposal was approved as set forth below:

3.An advisory resolution to approve named executive officer compensation. This proposal was approved as set forth below:

4.A proposal to ratify the selection of PricewaterhouseCoopers LLP as the independent registered public accounting firm of Cadence for its fiscal year ending December 31, 2026. This proposal was approved as set forth below:

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated: May 11, 2026