UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 29, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number 001-41867 Shimmick Corporation (Exact name of registrant as specified in its Charter) Delaware 84-3749368 (State or other jurisdiction of ...

Exhibit 99.1 Shimmick Corporation Announces Fourth Quarter and Fiscal Year 2023 Results Shimmick realized significant progress with 24% growth in Shimmick Projects, with gross margin of 7% Irvine, CA, March 28, 2024 – Shimmick Corp. (NASDAQ: SHIM), a leading water infrastructure company, today announced financial results for the fiscal year ended December 29, 2023. Fiscal Year 2023 Highlights "We are executing on our strategy as we laid out in our IPO by focusing on higher quality, shorter duration projects ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 29, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-41867 Shimmick Corporation (Exact Name of Registrant as Specified in its Charter) ( State or other jurisdiction of incorporation or organization) 530 Technolog ...