<SEC-DOCUMENT>0001415889-25-000950.txt : 20250106
<SEC-HEADER>0001415889-25-000950.hdr.sgml : 20250106
<ACCEPTANCE-DATETIME>20250106215245
ACCESSION NUMBER:		0001415889-25-000950
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250102
FILED AS OF DATE:		20250106
DATE AS OF CHANGE:		20250106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Heery Christopher
		CENTRAL INDEX KEY:			0001789632
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41259
		FILM NUMBER:		25513328

	MAIL ADDRESS:	
		STREET 1:		C/O PRECISION BIOSCIENCES, INC.
		STREET 2:		302 E. PETTIGREW STREET, SUITE A-100
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27701

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Arcellx, Inc.
		CENTRAL INDEX KEY:			0001786205
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				472855917
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		800 BRIDGE PARKWAY
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065
		BUSINESS PHONE:		240-327-0603

	MAIL ADDRESS:	
		STREET 1:		800 BRIDGE PARKWAY
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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        <issuerCik>0001786205</issuerCik>
        <issuerName>Arcellx, Inc.</issuerName>
        <issuerTradingSymbol>ACLX</issuerTradingSymbol>
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            <rptOwnerName>Heery Christopher</rptOwnerName>
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            <rptOwnerStreet1>C/O ARCELLX, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>800 BRIDGE PARKWAY</rptOwnerStreet2>
            <rptOwnerCity>REDWOOD CITY</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94065</rptOwnerZipCode>
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            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>CHIEF MEDICAL OFFICER</officerTitle>
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    <derivativeTable>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <footnoteId id="F4"/>
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                <underlyingSecurityTitle>
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                    <value>13021</value>
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    <footnotes>
        <footnote id="F1">Each restricted stock unit (&quot;RSU&quot;) represents a contingent right to receive one share of the Issuer's Common Stock.</footnote>
        <footnote id="F2">Represents a broker-assisted sale to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units.</footnote>
        <footnote id="F3">The price reported reflects the weighted average sales price. These shares were sold in multiple transactions at prices that were not available from the broker at the time of filing. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F4">Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2022 Equity Incentive Plan) through each applicable vesting date, one-third (1/3rd) of the RSUs subject to the award will vest each year following the RSU Grant Date on the same day of the month as the RSU Grant Date (or, if there is no corresponding day in a particular month, then the last day of the month) over three (3) years. &quot;RSU Grant Date&quot; shall mean January 2, 2024.</footnote>
        <footnote id="F5">Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2022 Equity Incentive Plan) through each applicable vesting date, one-third (1/3rd) of the RSUs subject to the award will vest each year following the RSU Grant Date on the same day of the month as the RSU Grant Date (or, if there is no corresponding day in a particular month, then the last day of the month) over three (3) years. &quot;RSU Grant Date&quot; shall mean January 3, 2023.</footnote>
        <footnote id="F6">Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2022 Equity Incentive Plan) through each applicable vesting date, one-fourth (1/4th) of the RSUs subject to the award will vest each year following the RSU Grant Date on the same day of the month as the RSU Grant Date (or, if there is no corresponding day in a particular month, then the last day of the month) over four (4) years. &quot;RSU Grant Date&quot; shall mean January 6, 2025.</footnote>
    </footnotes>

    <remarks>Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Michelle Gilson, as Attorney-in-Fact</signatureName>
        <signatureDate>2025-01-06</signatureDate>
    </ownerSignature>
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<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ex24-01072025_020141.htm
<TEXT>
<!DOCTYPE html PUBLIC "-//IETF//DTD HTML//EN">
<html><head><title>ex24-01072025_020141.htm</title></head><body style="margin-top:0;font-family:Times New Roman; font-size:10pt; color:#000000">
<p style="margin:0px" align="right"><b>Exhibit 24</b></p>
<p style="margin:0px; font-size:12pt" align="center"><b>POWER OF ATTORNEY</b></p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">Know all by these presents, that the undersigned hereby constitutes and appoints each of Rami Elghandour, Michelle Gilson, Maryam Abdul-Kareem, Jerome Lansangan, Daniel Koeppen, Jennifer Fang, Robert L. Wernli, Jr., Michael Brito-Stamm and Bridget Balisy, or either of them acting singly, and with full power of substitution and re-substitution, the undersigned<font style="font-family:Arial Unicode MS,Times New Roman">&rsquo;</font>s true and lawful attorney-in-fact (each of such persons and their substitutes being referred to herein as the "Attorney-in-Fact"), with full power to act for the undersigned and in the undersigned's name, place and stead, in any and all capacities, to:</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">1. Prepare, execute and submit to the Securities and Exchange Commission ("SEC"), Arcellx, Inc. (the <font style="font-family:Arial Unicode MS,Times New Roman">&ldquo;</font>Company<font style="font-family:Arial Unicode MS,Times New Roman">&rdquo;</font>), and/or any national securities exchange on which the Company<font style="font-family:Arial Unicode MS,Times New Roman">&rsquo;</font>s securities are listed any and all reports (including any amendments thereto) the undersigned is required to file with the SEC, or which the Attorney- in-Fact considers it advisable to file with the SEC, under Section 13 or Section 16 of the Securities Exchange Act of 1934 (the "Exchange Act") or any rule or regulation thereunder, or under Rule 144 under the Securities Act of 1933 (<font style="font-family:Arial Unicode MS,Times New Roman">&ldquo;</font>Rule 144<font style="font-family:Arial Unicode MS,Times New Roman">&rdquo;</font>), with respect to the any security of the Company, including Forms 3, 4 and 5, Schedules 13D and 13G, and Forms 144; and</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">2. Obtain, as the undersigned's representative and on the undersigned's behalf, information regarding transactions in the Company's equity securities from any third party, including the Company and any brokers, dealers, employee benefit plan administrators and trustees, and the undersigned hereby authorizes any such third party to release any such information to the Attorney-in-Fact.</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">The undersigned acknowledges that:</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">a) This Power of Attorney authorizes, but does not require, the Attorney-in-Fact to act in his or her discretion on information provided to such Attorney-in-Fact without independent verification of such information;</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">b) Any documents prepared or executed by the Attorney-in-Fact on behalf of the undersigned pursuant to this Power of Attorney will be in such form and will contain such information as the Attorney-in-Fact, in his or her discretion, deems necessary or desirable;</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">c) Neither the Company nor the Attorney-in-Fact assumes any liability for the undersigned's responsibility to comply with the requirements of Section 13 or Section 16 of the Exchange Act or Rule 144, any liability of the undersigned for any failure to comply with such requirements, or any liability of the undersigned for disgorgement of profits under Section 16(b) of the Exchange Act; and</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">d) This Power of Attorney does not relieve the undersigned from responsibility for compliance with the undersigned's obligations under Section 13 or Section 16 of the Exchange Act, including, without limitation, the reporting requirements under Section 13 or Section 16 of the Exchange Act.</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">The undersigned hereby grants to the Attorney-in-Fact full power and authority to do and perform each and every act and thing requisite, necessary or advisable to be done in connection with the foregoing, as fully, to all intents and purposes, as the undersigned might or could do in person, hereby ratifying and confirming all that the Attorney-in-Fact, or his or her substitute or substitutes, shall lawfully do or cause to be done by authority of this Power of Attorney.</p>
<p style="margin-top:6.133px; margin-bottom:6.133px; text-indent:48px; font-size:11pt" align="justify">This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 4 or 5 or Schedules 13D or 13G or Forms 144 with respect to the undersigned's holdings of and transactions in securities of the Company, unless earlier revoked by the undersigned in a signed writing delivered to the Attorney-in-Fact. This Power of Attorney revokes all previous powers of attorney with respect to the subject matter of this Power of Attorney.</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px; text-indent:48px; font-size:11pt" align="justify">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed on December 13, 2024.</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px; padding-left:336px; font-size:11pt">Signature: &nbsp;/s/ Christopher Heery</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px; padding-left:336px; font-size:11pt">Print Name: &nbsp;&nbsp;Christopher Heery</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin:0px"><br></p>
<p style="margin:0px"><br></p>
<p style="margin:0px"><br><br></p>
</body></html>
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</SEC-DOCUMENT>
