DEFA14A

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐

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☐		Preliminary Proxy Statement

☐		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐		Definitive Proxy Statement

☒		Definitive Additional Materials

☐		Soliciting Material Pursuant to § 240.14a-12

CYMABAY THERAPEUTICS, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement if Other Than the Registrant)

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on June 12, 2019.


CYMABAY THERAPEUTICS, INC.		Meeting Information
		Meeting Type: Annual Meeting
		For holders as of: April 16, 2019
		Date: June 12, 2019 Time: 9:00 AM Pacific Time
		Location:	Pacific Research Center
			7677 Gateway Blvd.
			Conference Center, 2nd Floor Apex Room Newark, CA 94560
CYMABAY THERAPEUTICS, INC. 7575 GATEWAY BOULEVARD, SUITE 110 NEWARK, CA 94560	You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting.
		See the reverse side of this notice to obtain proxy materials and voting instructions.

— Before You Vote —

How to Access the Proxy Materials


		Proxy Materials Available to VIEW or RECEIVE:
		NOTICE AND PROXY STATEMENT FORM 10-K How to View Online: Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL: sendmaterial@proxyvote.com If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before May 29, 2019 to facilitate timely delivery.








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		Vote In Person: Many stockholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions. Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.


Voting Items


The Board of Directors recommends you vote FOR the following:
1.	Election of Directors
	Nominees:
	01)	Sujal Shah	06)	Paul F. Truex
	02)	Robert F. Booth, Ph.D.	07)	Kurt von Emster
	03)	Carl Goldfischer, M.D.	08)	Robert J. Weiland
	04)	Caroline Loewy	09)	Robert J. Wills, Ph.D.
	05)	Evan A. Stein, M.D., Ph.D.

The Board of Directors recommends you vote FOR the following proposals:

2.	Ratification of selection, by the Audit Committee of the Board, of Ernst & Young LLP as the independent registered public accounting firm of CymaBay for its fiscal year ending December 31, 2019.

3.	Advisory vote to approve the compensation of our named executive officers as disclosed in the proxy statement.

The Board of Directors recommends you vote 1 year on the following proposal:

4.	Advisory vote on the frequency of the advisory votes to approve the compensation of our named executive officers.

NOTE: Such other business as may properly come before the meeting or any adjournment thereof.

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