X0508 4 2024-03-13 0001042074 CymaBay Therapeutics, Inc. CBAY 0001588861 Shah Sujal C/O CYMABAY THERAPEUTICS, INC. 7601 DUMBARTON CIRCLE FREMONT CA 94555 1 1 0 0 Chief Executive Officer 0 Common Stock 2024-03-13 4 M 0 11649 10.00 A 279200 D Common Stock 2024-03-13 4 M 0 14625 1.06 A 293825 D Common Stock 2024-03-13 4 M 0 52084 1.72 A 345909 D Common Stock 2024-03-13 4 M 0 18899 9.21 A 364808 D Common Stock 2024-03-13 4 M 0 3125 11.69 A 367933 D Common Stock 2024-03-13 4 M 0 14372 8.43 A 382305 D Common Stock 2024-03-13 4 M 0 22076 4.05 A 404381 D Common Stock 2024-03-13 4 M 0 2288 5.78 A 406669 D Common Stock 2024-03-13 4 M 0 1 2.94 A 406670 D Employee Stock Option (right to buy) 10.00 2024-03-13 4 M 0 11649 0 D 2025-01-06 Common Stock 11649 0 D Employee Stock Option (right to buy) 1.06 2024-03-13 4 M 0 14625 0 D 2026-01-25 Common Stock 14625 0 D Employee Stock Option (right to buy) 1.72 2024-03-13 4 M 0 52084 0 D 2027-01-18 Common Stock 52084 0 D Employee Stock Option (right to buy) 9.21 2024-03-13 4 M 0 18899 0 D 2027-10-26 Common Stock 18899 0 D Employee Stock Option (right to buy) 11.69 2024-03-13 4 M 0 3125 0 D 2028-01-23 Common Stock 3125 0 D Employee Stock Option (right to buy) 8.43 2024-03-13 4 M 0 14372 0 D 2029-01-28 Common Stock 14372 0 D Employee Stock Option (right to buy) 4.05 2024-03-13 4 M 0 22076 0 D 2030-05-14 Common Stock 22076 0 D Employee Stock Option (right to buy) 5.78 2024-03-13 4 M 0 2288 0 D 2031-01-25 Common Stock 2288 12845 D Employee Stock Option (right to buy) 2.94 2024-03-13 4 M 0 1 0 D 2032-01-24 Common Stock 1 35799 D The option vests as to 1/4 of the underlying shares on the first anniversary of the grant date, and vests as to 1/48 of the underlying shares monthly thereafter. The option vests as to 1/48 of the underlying shares monthly from October 27, 2017. The option vests as to 1/4 of the underlying shares on January 1, 2019, and vests as to 1/48 of the underlying shares monthly thereafter. The option vests as to 1/4 of the underlying shares on January 1, 2020, and vests as to 1/48 of the underlying shares monthly thereafter. The option vests as to 1/48 of the underlying shares monthly from January 31, 2020. The option vests as to 1/48 of the underlying shares monthly from January 1, 2021. The option vests as to 1/48 of the underlying shares monthly from January 1, 2022. /s/ Paul Quinlan, as attorney-in-fact for Sujal Shah 2024-03-15