Janus International Group, Inc.

Equity Trading Plan Elections

(c) Certain executive officers and directors of the Company may execute purchases and sales of our common stock through 10b5-1 and non-Rule 10b5-1 equity trading plans.

During the three month period ended September 27, 2025, the following executive officer (as defined in Section 16 of the Securities Exchange Act of 1934, as amended) “adopted a Rule 10b5-1 trading arrangement” (as defined in Item 408(c) of Regulation S-K).

On September 16, 2025, Morgan Hodges, our Executive Vice President, adopted a Rule 10b5-1 equity trading plan, intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) of the Exchange Act, pursuant to which a maximum of 250,000 shares of our common stock held by his revocable trust may be sold between December 16, 2025 and June 17, 2026. The plan terminates on the earlier of: (i) June 17, 2026, (ii) the first date on which all trades set forth in the plan have been executed, or (iii) such date as the plan is otherwise terminated in accordance with its terms.

Except as disclosed above, during the three month period ended September 27, 2025, no other executive officer or director (as defined in Section 16 of the Exchange Act), adopted, terminated, or modified any “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Item 408 of Regulation S-K.