Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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: 001-33221 HERON THERAPEUTICS, INC. (Exact name of registrant as specified in its charter) Delaware 94-2875566 (State or ot ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) Commission file number: 001-33221 HERON THERAPEUTICS, INC. (Exact name of registrant as specified in its charter) DELAWARE 94-2875566 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 4242 CAMPUS POINT COURT, SUITE 200 SAN DIEGO, CA (Address of principal executive of ices) Registrant's telephone number, including area code: (858) 251-4400 Securities ...