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): July 19, 2023

SONNET BIOTHERAPEUTICS HOLDINGS, INC.

(Exact Name of Registrant as Specified in Charter)

Registrant’s telephone number, including area code: (609) 375-2227

N/A

(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 or to be 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 5.08. Shareholder Director Nominations.

On July 19, 2023, the Board of Directors of Sonnet BioTherapeutics Holdings, Inc. (the “Company”) determined that the Company’s annual meeting of stockholders (the “Annual Meeting”) will be held on August 31, 2023, at 9:00 a.m. via virtual web service, to be announced publicly prior to the Annual Meeting, or at such other time and location to be determined by the authorized officers and set forth in the Company’s proxy statement for the Annual Meeting, and established July 27, 2023 as the record date for determining stockholders entitled to notice of, and vote at, the Annual Meeting. Stockholders of the Company who wish to have a proposal considered for inclusion in the Company’s proxy materials for the Annual Meeting pursuant to Rule 14a-8 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) must provide written notice to the Company at its corporate headquarters, 100 Overlook Center, Suite 102, Princeton, New Jersey 08540, on or before August 2, 2023, which the Company has determined to be a reasonable time before it expects to begin to print and mail its proxy materials. Stockholder proposals intended to be considered for inclusion in the Company’s proxy materials for the Annual Meeting must comply with the deadline set forth above as well as all the applicable rules and regulations promulgated by the Securities and Exchange Commission under the Exchange Act.

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.