Ainos, Inc.

Item 5.03 Amendments to Certificate of Incorporation or Bylaws; Change in Fiscal Year On October 14, 2026, the board of directors (the “Board”) of Ainos, Inc., a Texas corporation (the “Company”), unanimously approved the second amended and restated bylaws (the “Restated Bylaws”) of the Company, effective immediately, which among other things, adopted a classified board structure under which the directors are divided into three classes, designated as Class I, Class II and Class III, each class consisting, as nearly equal in number as possible, of one-third of the total number of directors constituting the entire Board. Effective upon the effectiveness of the Restated Bylaws, the current directors are hereby assigned to classes as follows: Class I (term expiring at the 2026 annual meeting of shareholders): Ting-Chuan Lee, Chun-Jung Tsai, and Chung-Yi Tsai; Class II (term expiring at the 2027 annual meeting): Yao-Chung Chiang and Pao-Sheng Wei; Class III (term expiring at the 2028 annual meeting): Chun-Hsien Tsai and Wen-Han Chang; and that directors elected at each annual meeting thereafter to succeed the class whose term expires shall be elected for a term expiring at the third succeeding annual meeting, and each director shall hold office until his or her successor is elected and qualified, or until earlier death, resignation or removal. The foregoing description of the amendment is qualified in its entirety by reference to the full text of the Restated Bylaws of the Company, which is filed as Exhibit 3.1 to this Current Report on Form 8-K and is incorporated by reference herein. The foregoing description of the Certificate of Amendment is a summary of the material terms thereof, does not purport to be complete and is qualified in its entirety by reference to the full text of the Certificate of Amendment, which is filed with this report as Exhibit 3.1 and herein incorporated by reference.

Item 8.01 Other Events. On the same day, the Board unanimously approved the amended Corporate Governance Policies of the Board (the “Corporate Governance Policies”), which among other things, reflected the classified board structure disclosed above. A copy of the Corporate Governance Policies is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference herein.