X0306 4 2019-02-22 0 0001428522 Radius Health, Inc. RDUS 0001693612 Carmona Jose C/O RADIUS HEALTH, INC. 950 WINTER STREET WALTHAM MA 02451 0 1 0 0 Chief Financial Officer Common Stock 2019-02-22 4 A 0 15000 A 18000 D Stock Option (Right to Buy) 19.18 2019-02-22 4 A 0 55000 0.00 A 2029-02-22 Common Stock 55000 55000 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 four substantially equal annual installments on each of the first four anniversaries of the grant date of February 22, 2019, subject to continued service with RDUS through such dates. 25% of the shares subject to the stock option shall vest on February 22, 2020, and the remaining shares shall vest in substantially equal monthly installments over the following three years, subject to continued service with RDUS through such dates. /s/ Brent Hatzis-Schoch, as Attorney-in-Fact 2019-02-26