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Date of Report (Date of earliest event reported): March 14, 2024

(Exact name of registrant as specified in its charter)

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.

This Current Report on Form 8-K/A (this “Amendment”) amends the Current Report on Form 8-K filed by Acacia Research Corporation (the “Company”) with the U.S. Securities and Exchange Commission on March 14, 2024 (the “Original Form 8-K”). The sole purpose of this Amendment is to remove Item 8.01, which was inadvertently included in the the Original Form 8-K.

Item 2.02.Results of Operations and Financial Condition.

On March 14, 2024, Acacia Research Corporation (the “Corporation) issued a press release announcing its financial results for the year ended December 31, 2023. A copy of that release is furnished as Exhibit 99.1 to this Current Report on Form 8-K (this “Report”).

The information contained within this Report and the exhibit attached hereto as Exhibit 99.1 are being furnished pursuant to Item 2.02 and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that Section. The information in this Report and the exhibit attached hereto as Exhibit 99.1 shall not be incorporated by reference into any registration statement or other document filed pursuant to the Securities Act of 1933, as amended, regardless of any general incorporation by reference language in such filings, except as shall be expressly set forth by specific reference in such filing.

Item 9.01.Financial Statements and Exhibits.

(d)Exhibits

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