UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

SCHEDULE 14A

(Rule 14a‑101)

INFORMATION REQUIRED IN PROXY STATEMENT

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 ☐

Check the appropriate box:

☐	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

Cotiviti Holdings, Inc.

(Name of Registrant as Specified in its Charter)

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

Payment of Filing Fee (Check the appropriate box):

☒	No fee required.
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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Shareholder Meeting to Be Held on May 25, 2017.

	Meeting Information
COTIVITI HOLDINGS, INC.	Meeting Type:		Annual Meeting
	For holders as of:		March 31, 2017
	Date:   May 25, 2017			Time:  9:00 AM, EDT
	Location:	Meeting live via the Internet-please visit www.virtualshareholdermeeting.com/COTV.
	The company will be hosting the meeting live via the Internet this year. To attend the meeting via the Internet please visit www.virtualshareholdermeeting.com/COTV and be sure to have the information that is printed in the box marked by the arrow             (located on the following page).
COTIVITI HOLDINGS, INC. SUITE 700 115 PERIMETER CENTER PLACE ATLANTA, GA 30346
	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.

How to Access the Proxy Materials

Proxy Materials Available to VIEW or RECEIVE:

NOTICE AND PROXY STATEMENT                     ANNUAL REPORT

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 11, 2017, to facilitate timely delivery.

Please Choose One of the Following Voting Methods

	Vote By Internet:
	Before The Meeting:
	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.
	During The Meeting:
	Go to www.virtualshareholdermeeting.com/COTV.   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.

The Board of Directors recommends you vote "FOR ALL" for proposal 1:

1.        Election of Class I Directors to serve until Cotiviti’s 2020 Annual Meeting of Stockholders

Nominees:

01)   Mala Anand

02)   Ruben J. King-Shaw, Jr.

The Board of Directors recommends you vote "FOR" proposals 2 and 3.

2.        To ratify the appointment of KPMG LLP as Cotiviti's independent registered public accounting firm for the fiscal year ending December 31, 2017; and

3.        To approve Cotiviti's Employee Stock Purchase Plans.

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

THIS IS NOT A PROXY CARD. YOU CANNOT VOTE BY RETURNING THIS NOTICE. Please refer to the "How to Vote" section of this notice for voting instructions.