<SEC-DOCUMENT>0001596771-17-000025.txt : 20170330
<SEC-HEADER>0001596771-17-000025.hdr.sgml : 20170330
<ACCEPTANCE-DATETIME>20170330163308
ACCESSION NUMBER:		0001596771-17-000025
CONFORMED SUBMISSION TYPE:	D
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		<ITEMS>06b
FILED AS OF DATE:		20170330
DATE AS OF CHANGE:		20170330
EFFECTIVENESS DATE:		20170330

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Gemphire Therapeutics Inc.
		CENTRAL INDEX KEY:			0001638287
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				472389984
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-283723
		FILM NUMBER:		17726195

	BUSINESS ADDRESS:	
		STREET 1:		17199 N. LAUREL PARK DRIVE
		STREET 2:		SUITE 401
		CITY:			LIVONIA
		STATE:			MI
		ZIP:			48152
		BUSINESS PHONE:		248-980-6538

	MAIL ADDRESS:	
		STREET 1:		17199 N. LAUREL PARK DRIVE
		STREET 2:		SUITE 401
		CITY:			LIVONIA
		STATE:			MI
		ZIP:			48152
</SEC-HEADER>
<DOCUMENT>
<TYPE>D
<SEQUENCE>1
<FILENAME>primary_doc.xml
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        <cik>0001638287</cik>
        <entityName>Gemphire Therapeutics Inc.</entityName>
        <issuerAddress>
            <street1>17199 N. LAUREL PARK DRIVE</street1>
            <street2>SUITE 401</street2>
            <city>LIVONIA</city>
            <stateOrCountry>MI</stateOrCountry>
            <stateOrCountryDescription>MICHIGAN</stateOrCountryDescription>
            <zipCode>48152</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>248-681-9815</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
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        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2014</value>
        </yearOfInc>
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    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Mina</firstName>
                <lastName>Sooch</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>17199 N. Laurel Park Drive</street1>
                <street2>Suite 401</street2>
                <city>Livonia</city>
                <stateOrCountry>MI</stateOrCountry>
                <stateOrCountryDescription>MICHIGAN</stateOrCountryDescription>
                <zipCode>48152</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Charles</firstName>
                <lastName>Bisgaier</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>17199 N. Laurel Park Drive</street1>
                <street2>Suite 401</street2>
                <city>Livonia</city>
                <stateOrCountry>MI</stateOrCountry>
                <stateOrCountryDescription>MICHIGAN</stateOrCountryDescription>
                <zipCode>48152</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Kenneth</firstName>
                <lastName>Kousky</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>8687 Winding Brook Circle</street1>
                <city>Freeland</city>
                <stateOrCountry>MI</stateOrCountry>
                <stateOrCountryDescription>MICHIGAN</stateOrCountryDescription>
                <zipCode>48623</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification>Board of Directors Member</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Andy</firstName>
                <lastName>Sassine</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>P.O. Box 9826</street1>
                <city>Rancho Santa Fe</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>92067</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            <relatedPersonName>
                <firstName>P.</firstName>
                <middleName>Kent</middleName>
                <lastName>Hawryluk</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>12406 Horesham Street</street1>
                <city>Carmel</city>
                <stateOrCountry>IN</stateOrCountry>
                <stateOrCountryDescription>INDIANA</stateOrCountryDescription>
                <zipCode>46032</zipCode>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Pedro</firstName>
                <lastName>Lichtinger</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>322 W. 57th St.</street1>
                <street2>Apt. 35B</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10019</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification>Board of Directors Member</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeffrey</firstName>
                <lastName>Mathiesen</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>17199 N. Laurel Park Drive</street1>
                <street2>Suite 401</street2>
                <city>Livonia</city>
                <stateOrCountry>MI</stateOrCountry>
                <stateOrCountryDescription>MICHIGAN</stateOrCountryDescription>
                <zipCode>48152</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Seth</firstName>
                <lastName>Reno</lastName>
            </relatedPersonName>
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                <street1>17199 N. Laurel Park Drive</street1>
                <street2>Suite 401</street2>
                <city>Livonia</city>
                <stateOrCountry>MI</stateOrCountry>
                <stateOrCountryDescription>MICHIGAN</stateOrCountryDescription>
                <zipCode>48152</zipCode>
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            <relatedPersonRelationshipList>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Steve</firstName>
                <lastName>Gullans</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>800 Boylston Street</street1>
                <street2>Suite 2825</street2>
                <city>Boston</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02199</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
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            <relationshipClarification>Board of Directors Member</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lee</firstName>
                <middleName>S.</middleName>
                <lastName>Golden</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>17199 N. Laurel Park Drive</street1>
                <street2>Suite 401</street2>
                <city>Livonia</city>
                <stateOrCountry>MI</stateOrCountry>
                <stateOrCountryDescription>MICHIGAN</stateOrCountryDescription>
                <zipCode>48152</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Pharmaceuticals</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2017-03-15</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
            <isOptionToAcquireType>true</isOptionToAcquireType>
            <isSecurityToBeAcquiredType>true</isSecurityToBeAcquiredType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Piper Jaffray &amp; Co.</recipientName>
                <recipientCRDNumber>665</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>800 Nicollet Mall</street1>
                    <city>Minneapolis</city>
                    <stateOrCountry>MN</stateOrCountry>
                    <stateOrCountryDescription>MINNESOTA</stateOrCountryDescription>
                    <zipCode>55402-7020</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>FL</state>
                    <description>FLORIDA</description>
                    <state>IL</state>
                    <description>ILLINOIS</description>
                    <state>IN</state>
                    <description>INDIANA</description>
                    <state>MD</state>
                    <description>MARYLAND</description>
                    <state>MA</state>
                    <description>MASSACHUSETTS</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>TX</state>
                    <description>TEXAS</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
            <recipient>
                <recipientName>LifeSci Capital LLC</recipientName>
                <recipientCRDNumber>168404</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>250 West 55th Street</street1>
                    <street2>Suite 16B</street2>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                    <zipCode>10019</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>FL</state>
                    <description>FLORIDA</description>
                    <state>IL</state>
                    <description>ILLINOIS</description>
                    <state>IN</state>
                    <description>INDIANA</description>
                    <state>MD</state>
                    <description>MARYLAND</description>
                    <state>MA</state>
                    <description>MASSACHUSETTS</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                    <state>TX</state>
                    <description>TEXAS</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>12540704</totalOfferingAmount>
            <totalAmountSold>12540704</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse>These amounts exclude proceeds the company will receive in the future upon the exercise of the warrants.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>26</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>1000000</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Gemphire Therapeutics Inc.</issuerName>
                <signatureName>/s/ Mina Sooch</signatureName>
                <nameOfSigner>Mina Sooch</nameOfSigner>
                <signatureTitle>CEO</signatureTitle>
                <signatureDate>2017-03-30</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
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</SEC-DOCUMENT>
