<SEC-DOCUMENT>0001534969-14-000001.txt : 20140313
<SEC-HEADER>0001534969-14-000001.hdr.sgml : 20140313
<ACCEPTANCE-DATETIME>20140313112948
ACCESSION NUMBER:		0001534969-14-000001
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		<ITEMS>06b
FILED AS OF DATE:		20140313
DATE AS OF CHANGE:		20140313
EFFECTIVENESS DATE:		20140313

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SERA PROGNOSTICS, INC.
		CENTRAL INDEX KEY:			0001534969
		IRS NUMBER:				261911522
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-203866
		FILM NUMBER:		14690097

	BUSINESS ADDRESS:	
		STREET 1:		417 WAKARA WAY
		STREET 2:		SUITE 3510
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84108
		BUSINESS PHONE:		(801) 505-0278

	MAIL ADDRESS:	
		STREET 1:		417 WAKARA WAY
		STREET 2:		SUITE 3510
		CITY:			SALT LAKE CITY
		STATE:			UT
		ZIP:			84108
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0707</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001534969</cik>
        <entityName>SERA PROGNOSTICS, INC.</entityName>
        <issuerAddress>
            <street1>2749 East Parleys Way, Suite 200</street1>
            <city>SALT LAKE CITY</city>
            <stateOrCountry>UT</stateOrCountry>
            <stateOrCountryDescription>UTAH</stateOrCountryDescription>
            <zipCode>84109</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(801) 990-0520</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gregory</firstName>
                <middleName>C.</middleName>
                <lastName>Critchfield</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2749 East Parleys Way, Suite 200</street1>
                <city>Salt Lake City</city>
                <stateOrCountry>UT</stateOrCountry>
                <stateOrCountryDescription>UTAH</stateOrCountryDescription>
                <zipCode>84109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Andrew</firstName>
                <middleName>A.</middleName>
                <lastName>Sauter</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2749 East Parleys Way, Suite 200</street1>
                <city>Salt Lake City</city>
                <stateOrCountry>UT</stateOrCountry>
                <stateOrCountryDescription>UTAH</stateOrCountryDescription>
                <zipCode>84109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Dennis</firstName>
                <middleName>B.</middleName>
                <lastName>Farrar</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2749 East Parleys Way, Suite 200</street1>
                <city>Salt Lake City</city>
                <stateOrCountry>UT</stateOrCountry>
                <stateOrCountryDescription>UTAH</stateOrCountryDescription>
                <zipCode>84109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <middleName>L.</middleName>
                <lastName>Novak</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2749 East Parleys Way, Suite 200</street1>
                <city>Salt Lake City</city>
                <stateOrCountry>UT</stateOrCountry>
                <stateOrCountryDescription>UTAH</stateOrCountryDescription>
                <zipCode>84109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ryan</firstName>
                <middleName>M.</middleName>
                <lastName>Trimble</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2749 East Parleys Way, Suite 200</street1>
                <city>Salt Lake City</city>
                <stateOrCountry>UT</stateOrCountry>
                <stateOrCountryDescription>UTAH</stateOrCountryDescription>
                <zipCode>84109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Douglas</firstName>
                <lastName>Fisher</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2749 East Parleys Way, Suite 200</street1>
                <city>Salt Lake City</city>
                <stateOrCountry>UT</stateOrCountry>
                <stateOrCountryDescription>UTAH</stateOrCountryDescription>
                <zipCode>84109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Joshua</firstName>
                <lastName>Phillips</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2749 East Parleys Way, Suite 200</street1>
                <city>Salt Lake City</city>
                <stateOrCountry>UT</stateOrCountry>
                <stateOrCountryDescription>UTAH</stateOrCountryDescription>
                <zipCode>84109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Kim</firstName>
                <lastName>Kamdar</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2749 East Parleys Way, Suite 200</street1>
                <city>Salt Lake City</city>
                <stateOrCountry>UT</stateOrCountry>
                <stateOrCountryDescription>UTAH</stateOrCountryDescription>
                <zipCode>84109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other Health Care</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001534969-13-000003</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2013-09-20</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>4500000</totalOfferingAmount>
            <totalAmountSold>4500000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>11</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</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>SERA PROGNOSTICS, INC.</issuerName>
                <signatureName>/s/ Andrew A. Sauter</signatureName>
                <nameOfSigner>Andrew A. Sauter</nameOfSigner>
                <signatureTitle>Chief Financial Officer</signatureTitle>
                <signatureDate>2014-03-12</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
