Curran Simpson, Chief Operating Officer, Appointed as President and CEOCo-Founder Kenneth T. Mills to Step Down as President and CEO; Named Chairman of the Board ROCKVILLE, Md., June 12, 2024 /PRNewswire/ -- REGENXBIO Inc. (NASDAQ:RGNX) today announced that Curran Simpson, Chief Operating Officer, has been appointed as President, Chief Executive Officer and a member of the Board of Directors, effective July 1, 2024. Co-Founder Kenneth T. Mills will step down as President and Chief Executive Officer following 15 years of leadership at the Company, and he is taking on an expanded role on the Board as Chairman. In connection with these changes, Board member Daniel Tassé has been appointed as RE