OR ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 OR Trinity Biotech plc(Exact name of Registrant as specified in its charter and translation of Registrant’s name into English) Ireland(Jurisdiction of incorporation or organization) IDA Business Park, Bray, County Wicklow, A98 H5C8, Ireland(Address of principal executive offices) Paul MurphyInterim Chief Financial OfficerTel: +3531276 9800Fax: +353 1276 9888IDA Business Park, Bray, County Wicklow, A98 H5C8, Ireland(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person) Securities registered or to be registered pursuant to Section12(b) of the Act: Securities registered or to be registered pursuant to Section12(g) of the Act: NoneSecurities for which there is a reporting obligation pursuant to Section15(d) of the Act: None Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period coveredby the annual report: 374,206,640 Class ‘A’ Ordinary Shares (excluding Treasury Shares)(as of December 31, 2025) Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes☐No☒ If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section13or 15(d) of the Securities Exchange Act of 1934. Yes☐No☒ Indicate by check mark whether the registrant (1)has filed all reports required to be filed by Section13 or 15(d) of the Securities ExchangeAct of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2)has beensubject to such filing requirements for the past 90 days. Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant toRule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant wasrequired to submit such files). Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of“accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer☐ If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if theregistrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards providedpursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of itsinternal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered publicaccounting firm that prepared or issued its audit report.☐ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrantincluded in the filing reflect the correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-basedcompensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing: International Financial Reporting Standardsasissuedby the International Accounting StandardsBoard☒Other☐ U.S.GAAP☐ If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant haselected to follow. Item 17☐Item 18☐ If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). This Annual Report on Form 20-F is incorporated by reference into our Registration Statements on Form S-8 File Nos. 333-182279,333-195232 and 333-253070 and our Registration Statements on Form F-3 File Nos. 333-286020, 333-267160, 333-280391 and 333-283273. TABLE OF CONTENTS PRESENTATION OF FINANCIAL AND OTHER INFORMATIONMARKET, INDUSTRY AND OTHER DATACAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS A.ReservedB.Capitalization and IndebtednessC.Reasons for the Offer and Use of ProceedsD.Risk Factors C.Organizational StructureD.Property, Plants and EquipmentItem 4A.Unresolved Staff CommentsItem 5Operating and Financial Review and ProspectsA.Operating ResultsB.Liquidity and Capital ResourcesC.Research and Development, Patents and Licenses, etc.D.Trend InformationE.Critical Accounting Policies and EstimatesItem 6Directors,