FORM 11-K[X] ANNUAL REPORT PURSUANT TO SECTION 15 (d) OF THESECURITIES EXCHANGE ACT OF 1934For the Fiscal Year Ended December 31, 2025OR[ ]TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THESECURITIES EXCHANGE ACT OF 1934COMMISSION FILE NUMBER 1‑11846 A. Full title of the Plan:APTARGROUP, INC. PROFITSHARING AND SAVINGS PLANB. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:APTARGROUP, INC.265 Exchange Drive, Suite 301Crystal Lake, Illinois 60014Telephone: (815) 477‑0424 APTARGROUP, INC.PROFIT SHARING AND SAVINGS PLAN INDEX TO FINANCIAL STATEMENTS AND SCHEDULE Report of Independent Registered Public Accounting Firm1 Financial Statements:Statements of Net Assets Available for Benefits, at December 31, 2025 and 20243Statement of Changes in Net Assets Available for Benefits, for the Year Ended December31, 20254Notes to Financial Statements, December 31, 2025 and 20245 ERISA-Required Supplemental Schedule:Schedule of Assets (Held at End of Year) at December 31, 2025(Schedule H, Line 4i)13 Signature14 Index of Exhibits15 Note: Allother schedules of additional financial information required by Section 2520.103‑10 of theDepartment of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee RetirementIncome Security Act of 1974 (ERISA) have been omitted because they are not applicable. REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Plan Participants and the Administrative CommitteeAptarGroup, Inc. Profit Sharing and Savings PlanCrystal Lake, Illinois Opinion on the Financial Statements We have audited the accompanying statements of net assets available for benefits of the AptarGroup, Inc. ProfitSharing and Savings Plan (the “Plan”) as of December31, 2025 and 2024, the related statement of changes innet assets available for benefits for the year ended December31, 2025, and the related notes (collectively, the“financial statements”). In our opinion, the financial statements present fairly, in all material respects, the netassets available for benefits of the Plan as of December31, 2025 and 2024, and the changes in net assetsavailable for benefits for the year ended December31, 2025, in conformity with accounting principles generallyaccepted in the United States of America. Basis for Opinion These financial statements are the responsibility of the Plan’s management. Our responsibility is to express anopinion on the Plan’s financial statements based on our audits. We are a public accounting firm registered withthePublic Company Accounting Oversight Board(United States)(“PCAOB”)and are required to beindependent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rulesand regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we planand perform the audit to obtain reasonable assurance about whether the financial statements are free of materialmisstatement, whether due to error or fraud. The Plan is not required to have, nor were we engaged to perform,an audit of its internal control over financial reporting. As part of our audits we are required to obtain anunderstanding of internal control over financial reporting but not for the purpose of expressing an opinion on theeffectiveness of the Plan’s internal control over financial reporting. Accordingly, we express no such opinion. Our audits included performing procedures to assess the risk of material misstatement of the financialstatements, whether due to error or fraud, and performing procedures that respond to those risks. Suchprocedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financialstatements. Our audits also included evaluating the accounting principles used and significant estimates madeby the Plan’s management, as well as evaluating the overall presentation of the financial statements. We believethat our audits provide a reasonable basis for our opinion. Supplemental Information The supplemental information in the accompanying Schedule H, line 4i - Schedule of Assets (Held at End ofYear) as of December31, 2025 has been subjected to audit procedures performed in conjunction with the auditof the Plan’s financial statements. The supplemental information is presented for the purpose of additionalanalysis and is not a required part of the financial statements but included supplemental information required bythe Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee RetirementIncome Security Act of 1974. The supplemental information is the responsibility of the Plan’s management. Ouraudit procedures included determining whether the supplemental information reconciles to the financialstatements or the underlying accounting and other records, as applicable, and performing procedures to test thecompleteness and accur