{"action":"elsewhere","city":"WILMINGTON","companyRegistrationNumber":null,"conformityFlag":"CONFORMING","country":"US","createdAt":"2007-06-11T00:00:00.000Z","entityCategory":"FUND","entityStatus":"ACTIVE","entitySubCategory":null,"expirationReason":null,"expiredAt":null,"family":{"children":[{"active":true,"country":"US","legalName":"ESG Prime Master Fund","lei":"549300IJT07W1XLI1C75","relationshipTypes":["IS_SUBFUND_OF"]},{"active":true,"country":"US","legalName":"Government Master Fund","lei":"54930015XY4J2ENG8G36","relationshipTypes":["IS_SUBFUND_OF"]},{"active":true,"country":"US","legalName":"Prime CNAV Master Fund","lei":"549300K8VKMIOPMVLW91","relationshipTypes":["IS_SUBFUND_OF"]},{"active":true,"country":"US","legalName":"Prime Master Fund","lei":"549300EFOVWITFDGF261","relationshipTypes":["IS_SUBFUND_OF"]},{"active":true,"country":"US","legalName":"Tax-Free Master Fund","lei":"5493006YO58S2QLZBI07","relationshipTypes":["IS_SUBFUND_OF"]},{"active":true,"country":"US","legalName":"Treasury Master Fund","lei":"549300XQ6V293JKF0677","relationshipTypes":["IS_SUBFUND_OF"]}],"childrenTotal":6,"exceptions":[{"category":"DIRECT_ACCOUNTING_CONSOLIDATION_PARENT","reasons":["NON_CONSOLIDATING"],"references":[]},{"category":"ULTIMATE_ACCOUNTING_CONSOLIDATION_PARENT","reasons":["NON_CONSOLIDATING"],"references":[]}],"parents":[{"active":true,"country":"US","legalName":"UBS ASSET MANAGEMENT (AMERICAS) LLC","lei":"F88SLSBEMHN5FUSNRO91","relationshipTypes":["IS_FUND-MANAGED_BY"]}]},"headquartersAddress":"C/O UBS ASSET MANAGEMENT (AMERICAS) LLC, 787 SEVENTH AVENUE","headquartersCity":"NEW YORK","headquartersCountry":"US","headquartersPostalCode":"10019","headquartersRegion":"US-NY","lastUpdatedAt":"2026-05-19T12:10:32.979Z","legalAddress":"C/O CORPORATION SERVICE COMPANY, 251 LITTLE FALLS DRIVE","legalFormAbbreviation":null,"legalFormCode":"8888","legalFormName":null,"legalJurisdiction":"US","legalName":"MASTER TRUST","lei":"549300EBIIAXTNCMYQ69","managingLou":"5493001KJTIIGC8Y1R12","managingLouName":"Bloomberg","managingLouWebsite":"http://lei.bloomberg.com","nextRenewalAt":"2027-05-25T00:00:00.000Z","otherLegalForm":"FUND","postalCode":"19808","region":"US-DE","registeredAt":"2019-03-27T15:32:00.000Z","registrationAuthorityId":"RA000665","registrationAuthorityName":"EDGAR","registrationAuthorityWebsite":"https://www.sec.gov/edgar/searchedgar/webusers.htm","registrationNumber":"0001403166","registrationNumberFormatted":"0001403166","registrationStatus":"ISSUED","served":false,"successorLeis":[],"validationAuthorityEntityId":"0001403166","validationAuthorityId":"RA000665","validationAuthorityName":"EDGAR","validationSources":"FULLY_CORROBORATED"}