Form D Raw Data - Electronic Filing Depository

EFDID: 532939EFD: Raw Data

Issuer: Mission BioCapital VI LP (0002039280) - D/A

Accession: 0002039280-25-000003 () (EDGAR Files) (Form D)

Edgar Posted: Sep. 26, 2025
EFD Posted: Sep. 26, 2025

- < edgarSubmission >

< schemaVersion > X0708 </ schemaVersion >

< submissionType > D/A </ submissionType >

< testOrLive > LIVE </ testOrLive >

- < primaryIssuer >

< cik > 0002039280 </ cik >

< entityName > Mission BioCapital VI LP </ entityName >

- < issuerAddress >

< street1 > 139 MAIN STREET, SUITE 401 </ street1 >

< city > CAMBRIDGE </ city >

< stateOrCountry > MA </ stateOrCountry >

< stateOrCountryDescription > MASSACHUSETTS </ stateOrCountryDescription >

< zipCode > 02142 </ zipCode >

</ issuerAddress >

< issuerPhoneNumber > 617-276-5578 </ issuerPhoneNumber >

< jurisdictionOfInc > DELAWARE </ jurisdictionOfInc >

- < issuerPreviousNameList >

< value > None </ value >

</ issuerPreviousNameList >

- < edgarPreviousNameList >

< value > None </ value >

</ edgarPreviousNameList >

< entityType > Limited Partnership </ entityType >

- < yearOfInc >

< withinFiveYears > true </ withinFiveYears >

< value > 2023 </ value >

</ yearOfInc >

</ primaryIssuer >

- < relatedPersonsList >

- < relatedPersonInfo >

- < relatedPersonName >

< firstName > General Partner </ firstName >

< lastName > Mission BioCapital VI GP LLC </ lastName >

</ relatedPersonName >

- < relatedPersonAddress >

< street1 > 139 Main Street, Suite 401 </ street1 >

< city > Cambridge </ city >

< stateOrCountry > MA </ stateOrCountry >

< stateOrCountryDescription > MASSACHUSETTS </ stateOrCountryDescription >

< zipCode > 02142 </ zipCode >

</ relatedPersonAddress >

- < relatedPersonRelationshipList >

< relationship > Promoter </ relationship >

</ relatedPersonRelationshipList >

< relationshipClarification > General Partner of the Issuer </ relationshipClarification >

</ relatedPersonInfo >

- < relatedPersonInfo >

- < relatedPersonName >

< firstName > Peter </ firstName >

< middleName > D. </ middleName >

< lastName > Parker </ lastName >

</ relatedPersonName >

- < relatedPersonAddress >

< street1 > 139 Main Street, Suite 401 </ street1 >

< city > Cambridge </ city >

< stateOrCountry > MA </ stateOrCountry >

< stateOrCountryDescription > MASSACHUSETTS </ stateOrCountryDescription >

< zipCode > 02142 </ zipCode >

</ relatedPersonAddress >

- < relatedPersonRelationshipList >

< relationship > Executive Officer </ relationship >

</ relatedPersonRelationshipList >

< relationshipClarification > Manager of the General Partner of the Issuer </ relationshipClarification >

</ relatedPersonInfo >

</ relatedPersonsList >

- < offeringData >

- < industryGroup >

< industryGroupType > Pooled Investment Fund </ industryGroupType >

- < investmentFundInfo >

< investmentFundType > Venture Capital Fund </ investmentFundType >

< is40Act > false </ is40Act >

</ investmentFundInfo >

</ industryGroup >

- < issuerSize >

< revenueRange > Decline to Disclose </ revenueRange >

</ issuerSize >

- < federalExemptionsExclusions >

< item > 06b </ item >

< item > 3C </ item >

< item > 3C.1 </ item >

< item > 3C.7 </ item >

</ federalExemptionsExclusions >

- < typeOfFiling >

- < newOrAmendment >

< isAmendment > true </ isAmendment >

< previousAccessionNumber > 0002039280-24-000001 </ previousAccessionNumber >

</ newOrAmendment >

- < dateOfFirstSale >

< value > 2024-09-30 </ value >

</ dateOfFirstSale >

</ typeOfFiling >

- < durationOfOffering >

< moreThanOneYear > false </ moreThanOneYear >

</ durationOfOffering >

- < typesOfSecuritiesOffered >

< isPooledInvestmentFundType > true </ isPooledInvestmentFundType >

</ typesOfSecuritiesOffered >

- < businessCombinationTransaction >

< isBusinessCombinationTransaction > false </ isBusinessCombinationTransaction >

< clarificationOfResponse />

</ businessCombinationTransaction >

< minimumInvestmentAccepted > 0 </ minimumInvestmentAccepted >

- < salesCompensationList >

- < recipient >

< recipientName > BHA Select Network, LLC </ recipientName >

< recipientCRDNumber > 168883 </ recipientCRDNumber >

< associatedBDName > None </ associatedBDName >

< associatedBDCRDNumber > None </ associatedBDCRDNumber >

- < recipientAddress >

< street1 > 1 Lincoln St. </ street1 >

< street2 > 29th Floor </ street2 >

< city > Boston </ city >

< stateOrCountry > MA </ stateOrCountry >

< stateOrCountryDescription > MASSACHUSETTS </ stateOrCountryDescription >

< zipCode > 02111 </ zipCode >

</ recipientAddress >

- < statesOfSolicitationList >

< value > All States </ value >

</ statesOfSolicitationList >

< foreignSolicitation > false </ foreignSolicitation >

</ recipient >

</ salesCompensationList >

- < offeringSalesAmounts >

< totalOfferingAmount > Indefinite </ totalOfferingAmount >

< totalAmountSold > 133750000 </ totalAmountSold >

< totalRemaining > Indefinite </ totalRemaining >

< clarificationOfResponse />

</ offeringSalesAmounts >

- < investors >

< hasNonAccreditedInvestors > false </ hasNonAccreditedInvestors >

< totalNumberAlreadyInvested > 9 </ totalNumberAlreadyInvested >

</ investors >

- < salesCommissionsFindersFees >

- < salesCommissions >

< dollarAmount > 156000 </ dollarAmount >

</ salesCommissions >

- < findersFees >

< dollarAmount > 0 </ dollarAmount >

</ findersFees >

< clarificationOfResponse > The Placement Agent's fees are dependent on the capital raised and will be paid by Mission BioCapital Management Company LLC. </ clarificationOfResponse >

</ salesCommissionsFindersFees >

- < useOfProceeds >

- < grossProceedsUsed >

< dollarAmount > 0 </ dollarAmount >

</ grossProceedsUsed >

< clarificationOfResponse > The General Partner of an affiliate may be entitled to receive a management fee or carried interest in in accordance with the Issuer's governing documentation, as amended from time to time. The amount of fees cannot be estimated at this time. </ clarificationOfResponse >

</ useOfProceeds >

- < signatureBlock >

< authorizedRepresentative > false </ authorizedRepresentative >

- < signature >

< issuerName > Mission BioCapital VI LP </ issuerName >

< signatureName > /s/ Peter D. Parker </ signatureName >

< nameOfSigner > Peter D. Parker </ nameOfSigner >

< signatureTitle > Manager of the General Partner of the Issuer </ signatureTitle >

< signatureDate > 2025-09-26 </ signatureDate >

</ signature >

</ signatureBlock >

</ offeringData >

</ edgarSubmission >