<SEC-DOCUMENT>0000899243-21-000138.txt : 20210104
<SEC-HEADER>0000899243-21-000138.hdr.sgml : 20210104
<ACCEPTANCE-DATETIME>20210104173248
ACCESSION NUMBER:		0000899243-21-000138
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20201230
FILED AS OF DATE:		20210104
DATE AS OF CHANGE:		20210104

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Ciaramella Giuseppe
		CENTRAL INDEX KEY:			0001786322

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39208
		FILM NUMBER:		21502944

	MAIL ADDRESS:	
		STREET 1:		C/O BEAM THERAPEUTICS INC.
		STREET 2:		26 LANDSDOWNE STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Beam Therapeutics Inc.
		CENTRAL INDEX KEY:			0001745999
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		26 LANDSDOWNE STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
		BUSINESS PHONE:		857-327-8775

	MAIL ADDRESS:	
		STREET 1:		26 LANDSDOWNE STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
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            <transactionAmounts>
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                <transactionPricePerShare>
                    <value>82.00</value>
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                <transactionShares>
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                <transactionPricePerShare>
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                    <footnoteId id="F13"/>
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            <securityTitle>
                <value>Common Stock</value>
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            <transactionTimeliness>
                <value></value>
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                <transactionShares>
                    <value>12000</value>
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                <transactionPricePerShare>
                    <value>0.67</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                    <value>D</value>
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            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
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            <conversionOrExercisePrice>
                <value>1.03</value>
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            <transactionDate>
                <value>2020-12-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>43842</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2028-07-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>43842</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>85946</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.67</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-12-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>12000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2028-05-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>12000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>257444</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The reported transactions were effected pursuant to a Rule 10b5-1 trading plan. Each price reported for transactions affected pursuant to the Rule 10b5-1 trading plan is a weighted average price. The Reporting Person undertakes to provide to BEAM, any security holder of BEAM or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.</footnote>
        <footnote id="F2">25% of the shares subject to the stock option vested on the first anniversary of the of the vesting commencement date, February 26, 2018, and the remaining shares shall vest in 36 substantially equal monthly installments thereafter, subject to continued service with BEAM through such dates.</footnote>
        <footnote id="F3">These shares were sold in multiple transactions ranging from $78.49 to $79.48 inclusive.</footnote>
        <footnote id="F4">These shares were sold in multiple transactions ranging from $79.52 to $80.51 inclusive.</footnote>
        <footnote id="F5">These shares were sold in multiple transactions ranging from $80.52 to $81.51 inclusive.</footnote>
        <footnote id="F6">These shares were sold in multiple transactions ranging from $81.52 to $82.51 inclusive.</footnote>
        <footnote id="F7">These shares were sold in multiple transactions ranging from $82.52 to $83.51 inclusive.</footnote>
        <footnote id="F8">These shares were sold in multiple transactions ranging from $83.60 to $84.59 inclusive.</footnote>
        <footnote id="F9">These shares were sold in multiple transactions ranging from $84.69 to $85.68 inclusive.</footnote>
        <footnote id="F10">These shares were sold in multiple transactions ranging from $85.71 to $86.69 inclusive.</footnote>
        <footnote id="F11">These shares were sold in multiple transactions ranging from $86.72 to $87.51 inclusive.</footnote>
        <footnote id="F12">These shares were sold in multiple transactions ranging from $87.80 to $88.67 inclusive.</footnote>
        <footnote id="F13">These shares were sold in multiple transactions ranging from $89.66 to $89.67 inclusive.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By: /s/ Christine Bellon, Attorney-in-fact</signatureName>
        <signatureDate>2021-01-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
