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): September 5, 2025

GSR IV Acquisition Corp.

(Exact name of registrant as specified in its charter)

(914-369-4400)

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K 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. ☐

Item 8.01 Other Events.

On September 5, 2025, GSR IV Acquisition Corp. (the “Company”) consummated its initial public offering (the “IPO”) of 20,000,000 units (the “Units”). In connection with the closing, the underwriter fully exercised its over-allotment option to purchase 3,000,000 additional Units (the “OA Option”) for an aggregate of 23,000,000 Units sold. Each Unit consists of one Class A ordinary share, par value $0.0001 per share (“Class A Ordinary Share”), of the Company and one-seventh of one right (“Right”), with each whole Right entitling the holder thereof to receive one whole Class A Ordinary Share. The Units were sold at a price of $10.00 per Unit, generating gross proceeds to the Company of $230,000,000.

Simultaneously with the closing of the IPO, the Company completed the private sale of an aggregate of 655,500 private placement units (the “Private Placement Units”) to GSR IV Sponsor LLC and Polaris Advisory Partners LLC at a purchase price of $10.00 per Private Placement Unit, generating gross proceeds to the Company of approximately $6,555,000. The Private Placement Units are identical to the Units sold in the IPO and OA Option, subject to certain limited exceptions, and will be subject to transfer restrictions until 30 days following the consummation of the Company’s initial business combination. The Private Placement Units were issued pursuant to Section 4(a)(2) of the Securities Act of 1933, as amended, as the transactions did not involve a public offering.

A total of $230,000,000, comprised of proceeds from the IPO and the sale of the Private Placement Units, were placed into a segregated trust account located in the United States with Odyssey Transfer and Trust Company acting as trustee. An audited balance sheet as of September 5, 2025 reflecting receipt of the proceeds upon consummation of the IPO and the sale of the Private Placement Units has been issued by the Company and is included as Exhibit 99.1 to this Current Report on Form 8-K.

Item 9.01 Financial Statement and Exhibits.

(d) Exhibits. The following exhibits are filed with this Form 8-K:

SIGNATURE

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.