Shimmick Corp — Current Report (Form 8-K)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 22, 2026

Shimmick Corporation

(Exact name of Registrant as Specified in Its Charter)

Registrant’s Telephone Number, Including Area Code: (833) 723-2021

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

On May 22, 2026, Shimmick Corporation (the “Company”) entered into an Underwriting Agreement (the “Underwriting Agreement”) with Roth Capital Partners, LLC, as the underwriter named therein (the “Underwriter”), in connection with an underwritten public offering of 3,730,000 shares of the Company’s common stock, par value $0.01 per share (the “Shares”), at a public offering price of $3.50 per Share.

Under the terms of the Underwriting Agreement, the Company granted the Underwriter a 30-day option to purchase up to 559,500 additional Shares. In connection with the closing of the offering, the Underwriter exercised its option to purchase all 559,500 additional Shares. As a result, the Company sold a total of 4,289,500 Shares in the offering. After the underwriting discount and estimated offering expenses payable by the Company, the Company received net proceeds from the offering of approximately $14.0 million. The offering, including the sale of the additional Shares, closed on May 26, 2026.

The offering was made pursuant to the Company’s effective shelf registration statement on Form S-3 (Registration No. 333-288513) previously filed with the Securities and Exchange Commission and declared effective on July 10, 2025, and a prospectus supplement thereunder.

The Underwriting Agreement contains customary representations, warranties and agreements by the Company, customary conditions to closing, indemnification obligations of the Company and the Underwriter, including liabilities arising under the Securities Act of 1933, as amended, other obligations of the parties and termination provisions. The Underwriting Agreement has been filed with this Current Report on Form 8-K to provide investors and security holders with information regarding its terms. It is not intended to provide any other factual information about the Company. The representations, warranties and covenants contained in the Underwriting Agreement were made only for purposes of such agreement and as of specific dates, were solely for the benefit of the parties to such agreement, and may be subject to limitations agreed upon by the contracting parties.

The preceding summary of the Underwriting Agreement is qualified in its entirety by reference to the full text of the Underwriting Agreement, a copy of which is attached as Exhibit 1.1 hereto and incorporated herein by reference.

A copy of the opinion of King & Spalding LLP regarding the validity of the shares of common stock sold in the offering is attached as Exhibit 5.1 hereto and incorporated herein by reference.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.