Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES ☒ EXCHANGE ACT OF 1934 For the Fiscal Year Ended: December 31, 2023 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: 001-35060 PACIRA BIOSCIENCES, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 51-0619477 (State ...