<SEC-DOCUMENT>0001415889-25-024448.txt : 20250912
<SEC-HEADER>0001415889-25-024448.hdr.sgml : 20250912
<ACCEPTANCE-DATETIME>20250912182517
ACCESSION NUMBER:		0001415889-25-024448
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250910
FILED AS OF DATE:		20250912
DATE AS OF CHANGE:		20250912

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PRENSKY ZACHARY
		CENTRAL INDEX KEY:			0001167585
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42831
		FILM NUMBER:		251312697

	MAIL ADDRESS:	
		STREET 1:		C/O LB PHARMACEUTICALS INC
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LB PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0001691082
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		575 MADISON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		917-450-6581

	MAIL ADDRESS:	
		STREET 1:		575 MADISON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LB PHARMACEUTICALS INC.
		DATE OF NAME CHANGE:	20161129
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4-09122025_060911.xml
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            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
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            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
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            <transactionDate>
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                    <value>53787</value>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
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                <transactionShares>
                    <value>22449</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F5"/>
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            <expirationDate>
                <value>2035-09-09</value>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                <underlyingSecurityShares>
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    <footnotes>
        <footnote id="F1">Immediately exercisable.</footnote>
        <footnote id="F2">The transactions reported herein reflect a one-time stock option repricing, effective on September 10, 2025, which reduced the per share exercise price of each repriced option to $15, representing the initial public offering price of the Issuer's common stock (the &quot;Option Repricing&quot;). Except as modified by the Option Repricing, all other terms and conditions of the repriced options, including, without limitation, any provisions with respect to vesting, remain in full force and effect.</footnote>
        <footnote id="F3">One fourth (1/4) of the shares subject to the option award vested on August 25, 2024 and the remaining shares subject to the option vested or shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continuous service through such vesting date.</footnote>
        <footnote id="F4">One fourth (1/4) of the shares subject to the option award vested on June 28, 2025 and the remaining shares subject to the option vested or shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continuous service through such vesting date.</footnote>
        <footnote id="F5">The option award shall vest in three (3) equal annual installments on September 10, 2026, September 10, 2027 and September 10, 2028, subject to the Reporting Person's continuous service through such vesting date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Marc Panoff, Attorney-in-Fact</signatureName>
        <signatureDate>2025-09-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
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</SEC-DOCUMENT>
