X0306 4 2022-01-14 0 0001428522 Radius Health, Inc. RDUS 0001718020 SANDERS MACHELLE C/O RADIUS HEALTH, INC. 22 BOSTON WHARF ROAD, 7TH FLOOR BOSTON MA 02210 1 0 0 0 Common Stock 2022-01-14 4 A 0 5500 0.00 A 5500 D Stock Option (Right to Buy) 6.40 2022-01-14 4 A 0 10000 0.00 A 2032-01-14 Common Stock 10000 10000 D The shares were acquired pursuant to a restricted stock unit award 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 full on the first anniversary of the award date, subject to continued service with RDUS through such date. This option vests in full on the first anniversary of the grant date, subject to continued service with RDUS through such date. /s/ G. Kelly Martin, as attorney-in-fact 2022-01-25