    <SEC-DOCUMENT>0000950170-24-049253-index.html : 20240426
    <SEC-HEADER>0000950170-24-049253.hdr.sgml : 20240426
    <ACCEPTANCE-DATETIME>20240426164604
    ACCESSION NUMBER:		0000950170-24-049253
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20240426
    DATE AS OF CHANGE:		20240426

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Alphatec Holdings, Inc.
    		CENTRAL INDEX KEY:			0001350653
    		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
    		ORGANIZATION NAME:           	08 Industrial Applications and Services
    		IRS NUMBER:				202463898
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-52024
    		FILM NUMBER:		24884696

    	BUSINESS ADDRESS:
    		STREET 1:		5818 EL CAMINO REAL
    		CITY:			CARLSBAD
    		STATE:			CA
    		ZIP:			92008
    		BUSINESS PHONE:		760-431-9286

    	MAIL ADDRESS:
    		STREET 1:		5818 EL CAMINO REAL
    		CITY:			CARLSBAD
    		STATE:			CA
    		ZIP:			92008
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>atec_2024_proxy_naa_no.x.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: atec_2024_proxy_naa_no.x.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>img26115774_0.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: img26115774_0.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>img26115774_1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: img26115774_1.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>