<SEC-DOCUMENT>0000899243-19-012926.txt : 20190509 <SEC-HEADER>0000899243-19-012926.hdr.sgml : 20190509 <ACCEPTANCE-DATETIME>20190509185114 ACCESSION NUMBER: 0000899243-19-012926 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20190508 FILED AS OF DATE: 20190509 DATE AS OF CHANGE: 20190509 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Sullivan Lynne Marie CENTRAL INDEX KEY: 0001727640 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38359 FILM NUMBER: 19812292 MAIL ADDRESS: STREET 1: C/O SOLID BIOSCIENCES, LLC STREET 2: 141 PORTLAND STREET, FIFTH FLOOR CITY: CAMBRIDGE STATE: MA ZIP: 02139 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: resTORbio, Inc. CENTRAL INDEX KEY: 0001720580 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 813305277 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 500 BOYLSTON STREET STREET 2: 12TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 617-482-2333 MAIL ADDRESS: STREET 1: 500 BOYLSTON STREET STREET 2: 12TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 </SEC-HEADER> <DOCUMENT> <TYPE>4 <SEQUENCE>1 <FILENAME>doc4.xml <DESCRIPTION>FORM 4 SUBMISSION <TEXT> <XML> <?xml version="1.0"?> <ownershipDocument> <schemaVersion>X0306</schemaVersion> <documentType>4</documentType> <periodOfReport>2019-05-08</periodOfReport> <notSubjectToSection16>0</notSubjectToSection16> <issuer> <issuerCik>0001720580</issuerCik> <issuerName>resTORbio, Inc.</issuerName> <issuerTradingSymbol>TORC</issuerTradingSymbol> </issuer> <reportingOwner> <reportingOwnerId> <rptOwnerCik>0001727640</rptOwnerCik> <rptOwnerName>Sullivan Lynne Marie</rptOwnerName> </reportingOwnerId> <reportingOwnerAddress> <rptOwnerStreet1>C/O RESTORBIO, INC.</rptOwnerStreet1> <rptOwnerStreet2>500 BOYLSTON STREET, 12TH FLOOR</rptOwnerStreet2> <rptOwnerCity>BOSTON</rptOwnerCity> <rptOwnerState>MA</rptOwnerState> <rptOwnerZipCode>02116</rptOwnerZipCode> <rptOwnerStateDescription></rptOwnerStateDescription> </reportingOwnerAddress> <reportingOwnerRelationship> <isDirector>1</isDirector> <isOfficer>0</isOfficer> <isTenPercentOwner>0</isTenPercentOwner> <isOther>0</isOther> </reportingOwnerRelationship> </reportingOwner> <derivativeTable> <derivativeTransaction> <securityTitle> <value>Stock Option (Right to Buy)</value> </securityTitle> <conversionOrExercisePrice> <value>7.99</value> </conversionOrExercisePrice> <transactionDate> <value>2019-05-08</value> </transactionDate> <deemedExecutionDate></deemedExecutionDate> <transactionCoding> <transactionFormType>4</transactionFormType> <transactionCode>A</transactionCode> <equitySwapInvolved>0</equitySwapInvolved> </transactionCoding> <transactionTimeliness> <value></value> </transactionTimeliness> <transactionAmounts> <transactionShares> <value>14414</value> </transactionShares> <transactionPricePerShare> <value>0.00</value> </transactionPricePerShare> <transactionAcquiredDisposedCode> <value>A</value> </transactionAcquiredDisposedCode> </transactionAmounts> <exerciseDate> <footnoteId id="F1"/> </exerciseDate> <expirationDate> <value>2029-05-07</value> </expirationDate> <underlyingSecurity> <underlyingSecurityTitle> <value>Common Stock</value> </underlyingSecurityTitle> <underlyingSecurityShares> <value>14414</value> </underlyingSecurityShares> </underlyingSecurity> <postTransactionAmounts> <sharesOwnedFollowingTransaction> <value>14414</value> </sharesOwnedFollowingTransaction> </postTransactionAmounts> <ownershipNature> <directOrIndirectOwnership> <value>D</value> </directOrIndirectOwnership> </ownershipNature> </derivativeTransaction> </derivativeTable> <footnotes> <footnote id="F1">This option was granted on May 8, 2019 with respect to 14,414 shares of Common Stock and vests in full on the earlier to occur of (a) the first anniversary of the grant date or (b) the date of the next annual meeting of stockholders following the date of grant.</footnote> </footnotes> <remarks></remarks> <ownerSignature> <signatureName>/s/ Lynne Marie Sullivan</signatureName> <signatureDate>2019-05-09</signatureDate> </ownerSignature> </ownershipDocument> </XML> </TEXT> </DOCUMENT> </SEC-DOCUMENT>