UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.      )

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☐ Preliminary Proxy Statement

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☐ Definitive Proxy Statement

☒ Definitive Additional Materials

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ALPHATEC HOLDINGS, INC.

(Exact Name of Registrant as Specified in its Charter)

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

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Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to be held on Thursday, June 15, 2017, for Alphatec Holdings, Inc.

This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. To view the proxy statement and annual report, go to www.proxydocs.com/ATEC. To submit your proxy while visiting this site, you will need the 12 digit control number in the box below.

Under new United States Securities and Exchange Commission rules, proxy materials do not have to be delivered in paper. Proxy materials can be distributed by making them available on the Internet. We have chosen to use these procedures for our 2017 Annual Meeting and need YOUR participation. If you want to receive a paper or e-mail copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year’s annual meeting, please make this request on or before June 5, 2017.

  For a Convenient Way to VIEW Proxy Materials – and – VOTE Online go to: www.proxydocs.com/ATEC  

Proxy Materials Available to View or Receive:

1. Proxy Statement   2. Annual Report

Printed materials may be requested by one of the following methods:

  INTERNET www.investorelections.com/ATEC     TELEPHONE (866) 648-8133     *E-MAIL paper@investorelections.com  

  You must use the 12 digit control number located in the shaded gray box below. *  If requesting material by e-mail, please send a blank e-mail with the 12 digit control number (located below) in the subject line. No other requests, instructions or other inquiries should be included with your e-mail requesting material.

        ACCOUNT NO.                 SHARES

Company Notice of Annual Meeting

Date:     Thursday, June 15, 2017

Time:     2:00 P.M. (Pacific Time)

Place:    5818 El Camino Real, Carlsbad, CA 92008

The purpose of the Annual Meeting is to take action on the following proposals:

The Board of Directors recommends that you vote “FOR” the following.

1.	Election of Directors
	Nominees	01	Mortimer Berkowitz III	03	Donald A. Williams	05	David H. Mowry	07 Jeffrey P. Rydin
		02	R. Ian Molson	04	Stephen O’Neil	06	Terry M. Rich

The Board of Directors recommends that you vote “FOR” the following, and “every year” on proposal 6.
2.	Proposal 2:	Ratification of the selection of Ernst & Young LLP as our independent registered public accounting firm for our fiscal year ending December 31, 2017;
3.	Proposal 3:	Approval of an amendment and restatement of our 2016 Equity Incentive Plan;
4.	Proposal 4:	Approval of an amendment and restatement of our 2007 Employee Stock Purchase Plan;
5.	Proposal 5:	Approval, on an advisory basis, of the compensation of our named executive officers;
6.	Proposal 6:	Approval, on an advisory basis, of the frequency of future stockholder votes to approve the compensation of our named executive officers; and
7.	Proposal 7:	Approval of the issuance of up to an aggregate of 17,525,972 shares of common stock issuable upon the conversion of outstanding shares of our Series A Convertible Preferred Stock and the exercise of outstanding warrants.