<SEC-DOCUMENT>0000912093-21-000096.txt : 20210602
<SEC-HEADER>0000912093-21-000096.hdr.sgml : 20210602
<ACCEPTANCE-DATETIME>20210602165657
ACCESSION NUMBER:		0000912093-21-000096
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210528
FILED AS OF DATE:		20210602
DATE AS OF CHANGE:		20210602

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Derksen Henk
		CENTRAL INDEX KEY:			0001480409

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22874
		FILM NUMBER:		21989930

	MAIL ADDRESS:	
		STREET 1:		1 N. BRENTWOOD BLVD.
		STREET 2:		SUITE 1500
		CITY:			SAINT LOUIS
		STATE:			MO
		ZIP:			63105

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VIAVI SOLUTIONS INC.
		CENTRAL INDEX KEY:			0000912093
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				942579683
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0703

	BUSINESS ADDRESS:	
		STREET 1:		6001 AMERICA CENTER DRIVE
		STREET 2:		6TH FLOOR
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95002
		BUSINESS PHONE:		4084043600

	MAIL ADDRESS:	
		STREET 1:		6001 AMERICA CENTER DRIVE
		STREET 2:		6TH FLOOR
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95002

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	JDS UNIPHASE CORP /CA/
		DATE OF NAME CHANGE:	19990713
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_162266739681143.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-05-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000912093</issuerCik>
        <issuerName>VIAVI SOLUTIONS INC.</issuerName>
        <issuerTradingSymbol>VIAV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001480409</rptOwnerCik>
            <rptOwnerName>Derksen Henk</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VIAVI SOLUTIONS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>7047 E. GREENWAY PARKWAY, SUITE 250</rptOwnerStreet2>
            <rptOwnerCity>SCOTTSDALE</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85254</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-05-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>91631</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>91631.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>91631</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Market Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-05-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>91631</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>91631.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>91631</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The units subject to the Award shall vest in equal amounts on the next four anniversaries of the grant date.</footnote>
        <footnote id="F2">There are no expiration dates on RSUs.</footnote>
        <footnote id="F3">See Exhibit 99.1</footnote>
        <footnote id="F4">There are no expiration dates on MSUs.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Barbara Wallace, Attorney-in-Fact</signatureName>
        <signatureDate>2021-06-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>fy2021msunhexhibit.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
<!-- Document created using Workiva -->
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<body>
<pre>
MSU Grant Exhibit:

The number of performance RSUs that vest will be based on the Company's total stockholder return ("TSR") relative to the performance of the component companies in the NASDAQ Telecommunications Index (the "NASDAQ Telecom Index") measured over a four-year performance period covering fiscal years 2022 through 2025, with one-year (fiscal 2022), two-year (fiscal 2022 and 2023), three-year (fiscal 2022, 2023, and 2024) and four year (fiscal 2022, 2023, 2024 and 2025) performance periods. The TSR for each period will be compared against the period of March 15, 2021 to April 28, 2021. The performance RSU award will be divided into four equal tranches, with one tranche assigned to each measurement period.

The actual number of shares that vest will be determined by the Compensation Committee after the end of each measurement period based on the relative TSR for the period and will range from 0% to 150% of the target amount for that period. In order to vest in 100% of the target number of RSUs, the Company's TSR must be at the 55th percentile of the NASDAQ Telecom Index for each measurement period.

The actual percentage of shares earned will be determined by the Committee at the end of each year of the MSU Performance Period and will be interpolated on a linear basis for performance between threshold and target for each level of achievement as follows:

Performance Threshold/Target............Shares Earned
0-25th Percentile.......................0% of Target Shares
25th-55th Percentile....................0%-100% of Target Shares
55th-100th Percentile...................100%-150% of Target Shares

Each earned unit converts into one share of common stock on the vesting date.


</pre>
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</SEC-DOCUMENT>
