Avidity Biosciences(RNA) - 2020 Q3 - Quarterly Report

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 SEPTEMBER 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (858) 401-7900 Commission File Number 001-39321 (Registrant's telephone number, including area code) Avidity Biosciences, Inc. (Exact name of registrant as specified in its charter) Delaware 46-13 ...