X0609 4 2026-09-23 0 0001839839 Janus International Group, Inc. JBI 0001936545 WONG ANSELM false C/O JANUS INTERNATIONAL GROUP, INC. 135 JANUS INTERNATIONAL BLVD. TEMPLE GA 30179 0 1 0 0 CFO, EVP 0 Common Stock 2026-09-23 4 A 0 176056 0 A 601693 D The Reporting Person received restricted stock units ("RSUs") on September 23, 2026 (the "Grant Date") based on the closing price per share of the Issuer's common stock on the Grant Date. The RSUs vest in three equal installments over three years on September 23 of each of 2027, 2028, and 2029, upon which the RSUs will be settled by delivery of shares of the Issuer's common stock. Includes 390,679 RSUs. /s/ Elliot Kahler, as attorney-in-fact for Anselm Wong 2026-09-25