X0306 4 2020-06-03 0 0001328143 Adamas Pharmaceuticals Inc ADMS 0001503381 Ericson William W. C/O MOHR DAVIDOW VENTURES 3000 SAND HILL ROAD, #3-290 MENLO PARK CA 94025 1 0 1 0 Common Stock 2020-06-03 4 A 0 5000 0.00 A 5000 D Common Stock 4031804 I MDV VII LP, nom for MDV VII LP, MDV VII Leaders' Fund LP, MDV ENF VII (A) LP, and MDV ENF VII (B) LP Common Stock 287992 I MDV IX, L.P., as nominee for MDV IX, L.P., and MDV ENF IX, L.P. Common Stock 265150 I MDV VII, L.P. Common Stock 6043 I MDV ENF VII (A), L.P. Common Stock 3146 I MDV ENF VII (B), L.P. Common Stock 25661 I MDV VII Leaders' Fund, L.P. Stock Option (Right to Buy) 2.70 2020-06-03 4 A 0 10000 0.00 A 2030-06-02 Common Stock 10000 10000 D The shares of Common Stock are to be acquired upon the vesting of certain Restricted Stock Units granted to the Reporting Person. The Restricted Stock Units shall vest on the date 1 year from June 3, 2020, subject to Reporting Person's Continuous Service (as defined in the Issuer's 2014 Equity Incentive Plan) as of such date. Seventh MDV Partners, L.L.C. is the general partner of (i) MDV VII, L.P., as nominee for MDV VII, L.P., MDV ENF VII(A), L.P., MDV ENF VII(B), L.P., and MDV VII Leaders' Fund, L.P., (ii) MDV VII, L.P., (iii) MDV ENF VII(A), L.P., (iv) MDV ENF VII(B), L.P., and (v) MDV VII Leaders' Fund, L.P. (collectively, "MDV VII"). Feiber and Nancy Schoendorf ("Schoendorf") are Managing Members of Seventh MDV Partners, L.L.C. Feiber and Schoendorf may be deemed to share voting and dispositive power over the shares held by MDV VII. Each Reporting Person disclaims beneficial ownership of the shares held by MDV VII except to the extent of any pecuniary interest therein. Ericson, a general partner with Mohr Davidow Ventures, may be deemed to indirectly beneficially own the shares affiliated with MDV VII. Ericson is a director of the Issuer and, accordingly, files separate Section 16 reports. Ninth MDV Partners, L.L.C. is the general partner of MDV IX, L.P., as nominee for MDV IX, L.P. and MDV ENF IX, L.P. (collectively, "MDV IX"). William Ericson ("Ericson") and Jonathan Feiber ("Feiber") are Managing Members of Ninth MDV Partners, L.L.C. Ericson and Feiber may be deemed to share voting and dispositive power over the shares held by MDV IX. Each Reporting Person disclaims beneficial ownership of the shares held by MDV IX except to the extent of any pecuniary interest therein. Ericson is a director of the Issuer and, accordingly, files separate Section 16 reports. The Option shares shall vest as follows: 100% of the option shares shall vest on the date 1 year from June 3, 2020, subject to Reporting Person's Continuous Service (as defined in the Issuer's 2014 Equity Incentive Plan) as of such date. /s/ Christopher B. Prentiss, Attorney-in-fact 2020-06-05