<SEC-DOCUMENT>0001209191-22-041802.txt : 20220711
<SEC-HEADER>0001209191-22-041802.hdr.sgml : 20220711
<ACCEPTANCE-DATETIME>20220711165156
ACCESSION NUMBER:		0001209191-22-041802
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220708
FILED AS OF DATE:		20220711
DATE AS OF CHANGE:		20220711

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STANTON THOMAS R
		CENTRAL INDEX KEY:			0001191219

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41446
		FILM NUMBER:		221077399

	MAIL ADDRESS:	
		STREET 1:		C/O ADTRAN
		STREET 2:		901 EXPLORER BLVD.
		CITY:			HUNTSVILLE
		STATE:			AL
		ZIP:			35806

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADTRAN Holdings, Inc.
		CENTRAL INDEX KEY:			0000926282
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		IRS NUMBER:				630918200
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		901 EXPLORER BLVD
		CITY:			HUNTSVILLE
		STATE:			AL
		ZIP:			35806
		BUSINESS PHONE:		256-963-8220

	MAIL ADDRESS:	
		STREET 1:		901 EXPLORER BLVD
		CITY:			HUNTSVILLE
		STATE:			AL
		ZIP:			35806

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADTRAN INC
		DATE OF NAME CHANGE:	19940705
</SEC-HEADER>
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    <footnotes>
        <footnote id="F1">Pursuant to that certain Business Combination Agreement, dated August 30, 2021, by and among ADTRAN, Inc.; ADVA Optical Networking SE; the Issuer (f/k/a Acorn HoldCo, Inc.); and Acorn MergeCo, Inc., ADTRAN, Inc. became a wholly owned subsidiary of the Issuer on July 8, 2022 (the &quot;Effective Time&quot;). At the Effective Time, (a) each share of ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into a share of the Issuer's common stock; (b) each RSU measured in shares of ADTRAN, Inc.'s common stock, whether vested or unvested, converted, on a one-for-one basis, into an RSU measured in shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding RSU immediately prior to the Effective Time;</footnote>
        <footnote id="F2">(Continued from footnote 1) (c) each option to purchase ADTRAN, Inc.'s common stock converted, on a one-for-one basis, into an option to purchase shares of the Issuer's common stock on the same terms and conditions as were applicable to the corresponding option immediately prior to the Effective Time; and (d) each share of phantom stock of ADTRAN, Inc. (representing the economic equivalent of one share of ADTRAN, Inc.'s common stock) converted, on a one-for-one basis, into a share of phantom stock of the Issuer on the same terms and conditions as were applicable to the corresponding phantom stock immediately prior to the Effective Time.</footnote>
        <footnote id="F3">Includes 444,193 time-based restricted stock units (&quot;RSUs&quot;) that settle upon vesting in shares of the Issuer's common stock, 111,959 of which were converted from RSUs measured in ADTRAN, Inc.'s common stock owned by the reporting person prior to the Effective Time (as defined below), and 332,234 of which were acquired in connection with the conversion of a target number of unearned performance stock units (&quot;PSUs&quot;) measured in shares of ADTRAN, Inc.'s common stock owned by the reporting person prior to the Effective Time (as defined below).</footnote>
        <footnote id="F4">The options granted to the reporting person vested in four annual installments beginning on the anniversary of the date of grant and were fully vested prior to the Effective Time.</footnote>
        <footnote id="F5">Represents shares of phantom stock of the Issuer that have been acquired through the automatic reinvestment of dividends paid on the Issuer's common stock, which phantom shares become payable in cash six months after the reporting person's separation of service with the Issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Michael Foliano, by power of attorney</signatureName>
        <signatureDate>2022-07-11</signatureDate>
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