<SEC-DOCUMENT>0000950170-24-003486.txt : 20240109
<SEC-HEADER>0000950170-24-003486.hdr.sgml : 20240109
<ACCEPTANCE-DATETIME>20240109194231
ACCESSION NUMBER:		0000950170-24-003486
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240106
FILED AS OF DATE:		20240109
DATE AS OF CHANGE:		20240109

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kampani Arjun
		CENTRAL INDEX KEY:			0001671507
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39560
		FILM NUMBER:		24524603

	MAIL ADDRESS:	
		STREET 1:		C/O AEROJET ROCKETDYNE HOLDINGS, INC.
		STREET 2:		2001 AEROJET ROAD
		CITY:			RANCHO CORDOVA
		STATE:			CA
		ZIP:			95742

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Rocket Lab USA, Inc.
		CENTRAL INDEX KEY:			0001819994
		STANDARD INDUSTRIAL CLASSIFICATION:	GUIDED MISSILES & SPACE VEHICLES & PARTS [3760]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3881 MCGOWEN STREET
		CITY:			LONG BEACH
		STATE:			CA
		ZIP:			90808
		BUSINESS PHONE:		714-465-5737

	MAIL ADDRESS:	
		STREET 1:		3881 MCGOWEN STREET
		CITY:			LONG BEACH
		STATE:			CA
		ZIP:			90808

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Vector Acquisition Corp
		DATE OF NAME CHANGE:	20200803
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-01-06</periodOfReport>

    <issuer>
        <issuerCik>0001819994</issuerCik>
        <issuerName>Rocket Lab USA, Inc.</issuerName>
        <issuerTradingSymbol>RKLB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001671507</rptOwnerCik>
            <rptOwnerName>Kampani Arjun</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ROCKET LAB USA, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>3881 MCGOWEN STREET</rptOwnerStreet2>
            <rptOwnerCity>LONG BEACH</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90808</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>General Counsel</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-01-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>220594</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>726541</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents restricted stock units (&quot;RSUs&quot;) granted to Mr. Kampani under the Rocket Lab USA, Inc. 2021 Stock Option and Incentive Plan (the &quot;2021 Plan&quot;). Such RSUs will vest as follows: 1/16 of the RSUs will vest on March 1, 2024 and 1/16 of the RSUs will vest on each March 1st, May 22nd, August 22nd or November 22nd thereafter, in each case subject to the reporting person's continuous service relationship through each applicable vesting date. The RSUs were granted on January 6, 2024.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Arjun Kampani</signatureName>
        <signatureDate>2024-01-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
