<SEC-DOCUMENT>0001562180-25-003689.txt : 20250509
<SEC-HEADER>0001562180-25-003689.hdr.sgml : 20250509
<ACCEPTANCE-DATETIME>20250509162048
ACCESSION NUMBER:		0001562180-25-003689
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250508
FILED AS OF DATE:		20250509
DATE AS OF CHANGE:		20250509

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Fallon Thomas J
		CENTRAL INDEX KEY:			0001399121
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	814-00702
		FILM NUMBER:		25930744

	MAIL ADDRESS:	
		STREET 1:		C/O HERCULES CAPITAL, INC.
		STREET 2:		1 NORTH B STREET
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94401

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Hercules Capital, Inc.
		CENTRAL INDEX KEY:			0001280784
		ORGANIZATION NAME:           	
		EIN:				743113410
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1 NORTH B STREET
		STREET 2:		SUITE 2000
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94401
		BUSINESS PHONE:		650-289-3060

	MAIL ADDRESS:	
		STREET 1:		1 NORTH B STREET
		STREET 2:		SUITE 2000
		CITY:			SAN MATEO
		STATE:			CA
		ZIP:			94401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HERCULES TECHNOLOGY GROWTH CAPITAL INC
		DATE OF NAME CHANGE:	20040219
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primarydocument.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-05-08</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0001280784</issuerCik>
        <issuerName>Hercules Capital, Inc.</issuerName>
        <issuerTradingSymbol>HTGC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001399121</rptOwnerCik>
            <rptOwnerName>Fallon Thomas J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O HERCULES CAPITAL, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1 NORTH B STREET, SUITE 2000</rptOwnerStreet2>
            <rptOwnerCity>SAN MATEO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94401</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-05-08</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5976.00</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>17.53</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>98882.00</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Trust</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6789.00</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Shares purchased based on reporting person's election to receive stock in lieu of cash compensation fee otherwise due to reporting person as a director of the Issuer.</footnote>
        <footnote id="F2">Average purchase price. Shares purchased at prices between $17.46 and $17.67.</footnote>
        <footnote id="F3">Includes 182, 170 and 154 dividend reinvestment shares acquired on August 20, 2024, November 20, 2024 and March 5, 2025 respectively.</footnote>
        <footnote id="F4">Held by the Fallon Family Revocable Trust</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Eileen Bagarella, Attorney-in-Fact for Thomas J. Fallon</signatureName>
        <signatureDate>2025-05-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
