Table of Contents AptarGroup, Inc. UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q [X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2019 OR [ ]TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO COMMISSION FILE NUMBER 1-11846 DELAWARE 36-3853103 (State of Incorporation) (I.R.S. Employer Identification No.) 265 EXCHANGE DR ...

Table of Contents United States Securities and Exchange Commission Washington, D.C. 20549 FORM 10‑K [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2018 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO COMMISSION FILE NUMBER 1‑11846 AptarGroup, Inc. DELAWARE 36‑3853103 265 EXCHANGE DRIVE, SUITE 100, CRYSTAL LAKE, ILLINOIS 60014 815‑477‑0424 Securiti ...