ONON Semiconductor

Sudhir Gopalswamy, our Group President, ISG and AMG, adopted a Rule 10b5-1 trading arrangement on May 14, 2026. Under this arrangement, a total of 15,578 shares of our common stock may be sold, subject to certain conditions, before the plan expires on May 14, 2027.

Thad Trent, our Executive Vice President and Chief Financial Officer, adopted a Rule 10b5-1 trading arrangement on November 7, 2025. Under this arrangement, a total of 150,000 shares of our common stock may be sold, subject to certain conditions, before the plan expires on December 31, 2026.

Alan Campbell, the Chair of our Board of Directors, adopted a Rule 10b5-1 trading arrangement on December 11, 2024. Under this arrangement, a total of 25,371 shares of our common stock may be sold, subject to certain conditions, before the plan expires on December 31, 2025.

Hassane El-Khoury, our President and Chief Executive Officer, and a director, adopted a Rule 10b5-1 trading arrangement on December 11, 2024. Under this arrangement, a total of 13,500 shares of our common stock may be sold, subject to certain conditions, before the plan expires on December 31, 2025.

Thad Trent, our Executive Vice President, Chief Financial Officer and Treasurer, adopted a Rule 10b5-1 trading arrangement on December 11, 2024. Under this arrangement, a total of 105,000 shares of our common stock may be sold, subject to certain conditions, before the plan expires on December 31, 2025.

Insider Trading Arrangements During the quarter ended June 28, 2024, none of our directors or officers (as defined in Rule 16a-1(f) of the Exchange Act) adopted or terminated a "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement" (as those terms are defined in Item 408 of Regulation S-K), except as follows: • Hassane El-Khoury, our President and CEO, and a director, adopted a Rule 10b5-1 trading arrangement on June 7, 2024. Under this arrangement, a total of 10,500 shares of our common stock may be sold, subject to certain conditions, before the plan expires on March 31, 2025.

Simon Keeton, our Group President, PSG, adopted a Rule 10b5-1 trading arrangement on February 15, 2024. Under this arrangement, a total of 52,819 shares of our common stock may be sold, subject to certain conditions, before the plan expires on February 15, 2025.

Paul A. Mascarenas, a director, adopted a Rule 10b5-1 trading arrangement on February 7, 2024. Under this arrangement, a total of 911 shares of our common stock may be sold, subject to certain conditions, before the plan expires on May 30, 2024.

Sudhir Gopalswamy, Senior Vice President and General Manager, ASG, adopted a Rule 10b5-1 trading arrangement on December 15, 2023. Under this arrangement, a total of 8,537 shares of our common stock may be sold, subject to certain conditions, before the plan expires on December 13, 2024. The above arrangement is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) of the Exchange Act.

Thad Trent, Executive Vice President, Chief Financial Officer and Treasurer of the Company, adopted a Rule 10b5-1 Plan on September 14, 2023. Under this plan, a total of 50,000 shares of the Company’s common stock may be sold before the plan expires on December 31, 2024.

Alan Campbell, a director of the Company, adopted a Rule 10b5-1 Plan on August 4, 2023. Under this plan, a total of 36,269 shares of the Company’s common stock may be sold before the plan expires on December 31, 2024.

Bernard R. Colpitts, Jr., Senior Vice President and Chief Accounting Officer of the Company, adopted a Rule 10b5-1 Plan on June 12, 2023. Under this plan, a total of 3,800 shares of the Company’s common stock may be sold before the plan expires on December 31, 2023.

Christine Y. Yan, a director of the Company, adopted a Rule 10b5-1 Plan on May 18, 2023. Under this plan, a total of 3,624 shares of the Company’s common stock may be sold before the plan expires on May 21, 2024.