REGENXBIO(RGNX) - 2021 Q3 - Quarterly Report

Washington, D.C. 20549 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 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 001-37553 REGENXBIO Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 47-1851754 (S ...