X0306 4 2022-01-14 0 0001428522 Radius Health, Inc. RDUS 0001852541 Shah Chhaya C/O RADIUS HEALTH, INC. 22 BOSTON WHARF ROAD, 7TH FLOOR BOSTON MA 02210 0 1 0 0 Chief Business Officer Common Stock 2022-01-14 4 A 0 65000 0.00 A 94645 D Represents restricted stock units awarded under the 2018 Stock Option and Incentive Plan. Each restricted stock unit represents a contingent right to receive one share of RDUS common stock. The restricted stock units vest in three substantially equal annual installments on each of the first three anniversaries of the grant date of January 14, 2022, subject to continued service with RDUS through such dates. /s/ G. Kelly Martin, as attorney-in-fact 2022-01-25