CYMABAY THERAPEUTICS, INC.
7999 Gateway Blvd., Suite 130
Newark, CA 94560
(510)293-8800
January 17, 2018
VIA EDGAR
United States Securities and Exchange Commission
Division of Corporation Finance
100 F Street, N.E.
Washington, D.C. 20549
Attn: Ada Sarmento
| RE: | CymaBay Therapeutics, Inc. |
Registration Statement on FormS-3
FileNo. 333-222372
Ladies and Gentlemen:
CymaBay Therapeutics, Inc. hereby requests that the Securities and Exchange Commission take appropriate action to cause the above-referenced Registration Statement on FormS-3 to become effective on January 19, 2018, at 5:00 p.m., Eastern Time, or as soon thereafter as is practicable.
| Very truly yours, | ||
| CymaBay Therapeutics, Inc. | ||
| By: | /s/ Sujal Shah | |
| Sujal Shah | ||
| President and Chief Executive Officer | ||
