<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2022-02-10</periodOfReport>

    <dateOfOriginalSubmission>2022-02-17</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000009326</issuerCik>
        <issuerName>BALCHEM CORP</issuerName>
        <issuerTradingSymbol>BCPC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001906287</rptOwnerCik>
            <rptOwnerName>van Gunsteren Job Leonard</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BALCHEM CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>5 PARAGON DRIVE</rptOwnerStreet2>
            <rptOwnerCity>MONTVALE</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07645</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>true</isOfficer>
            <officerTitle>SVP and GM, Specialty Products</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6661</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares held directly</footnote>
    </footnotes>

    <remarks>This Form 3/A amends the original Form 3 filed on February 17, 2022, which inadvertently omitted (due to administrative error) 5,260 shares held directly by the Reporting Person. This Form 3/A is also deemed to adjust, accordingly, the reported balance on the Form 4s filed by the Reporting Person on August 5, 2022, August 9, 2022, and August 16, 2022, respectively.  In this regard, as of the date of this filing, the Reporting Person directly holds 5,260 shares.  Note: The title of the Reporting Person on this Form 3/A reflects his title as of the date of filing of this Form 3/A.

Exhibit 24 - Power of Attorney is attached.</remarks>

    <ownerSignature>
        <signatureName>/s/ Hatsuki Miyata, Attorney-in-Fact for Job van Gunsteren</signatureName>
        <signatureDate>2022-10-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
