NeOnc Technologies Holdings, Inc.

Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year. On September 18, 2026 (the “Effective Date”), the Company filed an Elimination of Certificate of Designation with the Secretary of State of the State of Delaware to terminate the designation of its Series A Preferred Stock (the “Certificate of Elimination”). The filing of the Certificate of Elimination was approved by the Company’s Board of Directors, and there were no shares of Series A Preferred Stock outstanding on the Effective Date. A copy of the Certificate of Elimination is attached hereto as Exhibit 3.1 and is incorporated by reference herein.

Item 7.01 Regulation FD Disclosure. On September 17, 2026, the Company issued a press release announcing that it redeemed for cash all outstanding shares of its Series A Preferred Stock. A copy of the press release is attached hereto as Exhibit 99.1. The press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and incorporated into this Item 7.01 by reference. The information presented in Item 7.01 of this Current Report on Form 8-K and the accompanying press release shall not be deemed to be “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, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act or specifically incorporates it by reference into a filing under the Securities Act or the Exchange Act. Item 9.01. Financial Statements and Exhibits. (d) Exhibits Exhibit Description ────────────────────────────────────────────────────────────────────────────────────── 3.1 Certificate of Elimination of Designation of Series A Convertible Preferred Stock 99.1 Press Release dated September 17, 2026 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)