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

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-06-26</periodOfReport>

    <issuer>
        <issuerCik>0001638826</issuerCik>
        <issuerName>ServiceTitan, Inc.</issuerName>
        <issuerTradingSymbol>TTAN</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001506450</rptOwnerCik>
            <rptOwnerName>Deeter Byron B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O BESSEMER VENTURE PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>1865 PALMER AVENUE, SUITE 104</rptOwnerStreet2>
            <rptOwnerCity>LARCHMONT</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10538</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-06-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-06-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4937</value>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On June 26, 2026, Bessemer Venture Partners VIII L.P. (&quot;BVP VIII&quot;), Bessemer Venture Partners VIII Institutional L.P. (&quot;BVP VIII Inst&quot;) and 15 Angels II LLC (&quot;15 Angels&quot; and together with BVP VIII and BVP VIII Inst, the &quot;Bessemer Funds&quot;) sold 125,513 shares, 150,948 shares and 6,742 shares of Class A Common Stock of the Issuer, respectively. These shares were sold at a weighted average price of $68.58. These shares were sold in multiple transactions at prices ranging from $68.38 to $69.20. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 ranges set forth in this footnote.</footnote>
        <footnote id="F2">The Reporting Person is a partner at Bessemer Venture Partners and has an indirect, passive economic interest in the shares held by the Bessemer Funds by virtue of his interest in (1) Deer VIII &amp; Co. L.P., the general partner of the Bessemer Funds and (2) certain other indirect limited partnership interests in certain of the Bessemer Funds. The Reporting Person disclaims beneficial ownership of the securities held by the Bessemer Funds, except to the extent of his pecuniary interest, if any, in such securities by virtue of his indirect interest in the Bessemer Funds. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities.</footnote>
        <footnote id="F3">On June 29, 2026, BVP VIII, BVP VIII Inst and 15 Angels sold 49,014 shares, 58,946 shares and 2,632 shares of Class A Common Stock of the Issuer, respectively. These shares were sold at a weighted average price of $69.85. These shares were sold in multiple transactions at prices ranging from $69.85 to $69.95. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, 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 ranges set forth in this footnote.</footnote>
        <footnote id="F4">Includes an award of 3,046 restricted stock units (&quot;RSUs&quot;) granted pursuant to the Issuer's non-employee director compensation program. The RSUs will vest in full on September 15, 2027, subject to the Reporting Person's continued service on the Issuer's board of directors through such vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock.</footnote>
        <footnote id="F5">Includes an award of 1,891 RSUs granted pursuant to the Issuer's non-employee director compensation program. The RSUs will vest in full on September 15, 2026, subject to the Reporting Person's continued service on the Issuer's board of directors through such vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock</footnote>
        <footnote id="F6">The Reporting Person has agreed to assign to Deer Management Co. LLC (&quot;DMC&quot;) the right to any RSUs or Class A Common Stock issuable pursuant to these grants or any proceeds from the sale thereof.</footnote>
        <footnote id="F7">After the June 26 and June 29 trades, BVP VIII, BVP VIII Inst and 15 Angels, own 2,189,269 shares, 2,632,904 shares, and 117,512 shares of Class A Common Stock, respectively.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Augie Wilkinson, Attorney-in-Fact</signatureName>
        <signatureDate>2026-06-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
