X0508 4 2025-06-20 0001887944 Shimmick Corp SHIM 0001997607 Goldsteen Mitchell B. C/O SHIMMICK CORPORATION 530 TECHNOLOGY DRIVE, SUITE 300 IRVINE CA 92618 true false true false true Common Stock, par value $0.01 per share 2025-06-20 2025-06-20 4 S false 900 1.60 D 21403964 I By GOHO, LLC The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person on August 20, 2024. The price reported in column 4 is a weighted average price. The shares were acquired in multiple transactions at prices ranging from $1.60 to $1.61, inclusive. Upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares purchased or sold at each separate price will be provided. The reporting person owns the securities indirectly through GOHO, LLC, of which Mr. Goldsteen is the sole managing member. Mr. Goldsteen disclaims beneficial ownership of these securities, except to the extent of any pecuniary interest therein. /s/ John Carpenter, Power of Attorney for Mitchell B. Goldsteen 2025-06-20