X0206 3/A 2020-02-26 2020-02-27 0 0001159281 FIVE STAR SENIOR LIVING INC. NASDAQ:FVE 0001241563 CLARK JENNIFER B C/O FIVE STAR SENIOR LIVING INC., 400 CENTRE STREET NEWTON MA 02458 1 0 0 0 Common Stock 23316 D /s/ Jennifer B. Clark 2020-03-31