Anteris Technologies Global Corp美股招股说明书(2025-12-17版)

Prospectus Supplement No. 1(To Prospectus dated December 11, 2025) This prospectus supplement updates, amends and supplements the prospectus dated December 11, 2025 (the “Prospectus”), whichforms a part of our Registration Statement on Form S-1 (Registration No. 333-291821) relating to up to 9,103,796 shares of ourcommon stock, par value $0.0001 per share (“Common Stock”), which may be offered for sale by the selling stockholders identifiedunder the heading “Selling Stockholders” in the Prospectus. This prospectus supplement is being filed to update, amend andsupplement the information included in the Prospectus with information contained in our Current Report on Form 8-K, which wasfiled with the Securities and Exchange Commission (the “SEC”) on December 15, 2025 (the “Current Report”). Accordingly, we have This prospectus supplement is not complete without the Prospectus. This prospectus supplement should be read in conjunction withthe Prospectus, which is to be delivered with this prospectus supplement, and is qualified by reference thereto, except to the extent thatthe information in this prospectus supplement updates or supersedes the information contained in the Prospectus. Please keep this Our Common Stock is listed on the Nasdaq Global Market (“Nasdaq”) under the symbol “AVR.” Our CHESS Depositary Intereststrade on the Australian Securities Exchange under the symbol “AVR.” On December 12, 2025, the closing price for our Common Investing in our securities involves a high degree of risk. See the section titled “Risk Factors” in the Prospectus and in thedocuments incorporated by reference in the Prospectus. Neither the SEC nor any state securities commission has approved or disapproved of the securities to be offered pursuant tothe Prospectus or this prospectus supplement or determined if the Prospectus or this prospectus supplement is truthful or The date of this prospectus supplement is December 15, 2025. UNITED STATESSECURITIES AND EXCHANGE COMMISSION FORM 8-K CURRENT REPORTPursuant to Section 13 OR 15(d) Date of Report (Date of earliest event reported): December 15, 2025 Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrantunder any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period forcomplying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Item 5.02.Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers;Compensatory Arrangements of Certain Officers. On December 13, 2025 (December 14, 2025 in Australia), Mr. Stephen Denaro resigned from the Board of Directors (the “Board”) ofAnteris Technologies Global Corp. (the “Company”) and as a Class II director with immediate effect. The resignation from the Boardwas not due to any disagreement with the Company or its management with respect to any matter relating to the Company’s Mr. Denaro will continue to serve as the corporate secretary of Anteris Technologies Pty Ltd (“ATPL”) and as a member of the Boardof Directors of ATPL and the Company’s other Australian subsidiaries. The Board thanks Steve for his service. SIGNATURES Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to besigned on its behalf by the undersigned hereunto duly authorized. Anteris Technologies Global Corp.B/s/ Wayne Paterson Date: December 15, 2025