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As filed with the Securities and Exchange Commission on March 22, 2019Registration No. 333-

UNITED STATESSECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-3

REGISTRATION STATEMENTUNDER

THE SECURITIES ACT OF 1933

ADT Inc.(Exact name of registrant as specified in its charter)

Delaware 47-4116383(State or other jurisdiction of

incorporation or organization) (I.R.S. Employer

Identification Number)1501 Yamato Road

Boca Raton, FL 33431(561) 322-7235

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

James D. DeVries

Chief Executive Officerc/o ADT Inc.

1501 Yamato RoadBoca Raton, FL 33431

(561) 322-7235

Copies of Communications to:

Tracey A. Zaccone, Esq.Paul, Weiss, Rifkind, Wharton & Garrison LLP

1285 Avenue of the AmericasNew York, New York 10019

(212) 373-3000(Name, address, including zip code, and telephone number, including area code, of agent for service)

From time-to-time following effectiveness of this Registration Statement.

(Approximate date of commencement of proposed sale to the public)IftheonlysecuritiesbeingregisteredonthisFormarebeingofferedpursuanttodividendorinterestreinvestmentplans,pleasecheckthefollowingbox:☒IfanyofthesecuritiesbeingregisteredonthisFormaretobeofferedonadelayedorcontinuousbasispursuanttoRule415undertheSecuritiesActof1933,otherthansecuritiesofferedonlyinconnectionwithdividendorinterestreinvestmentplans,checkthefollowingbox:☐IfthisFormisfiledtoregisteradditionalsecuritiesforanofferingpursuanttoRule462(b)undertheSecuritiesAct,pleasecheckthefollowingboxandlisttheSecuritiesActregistrationstatementnumberoftheearliereffectiveregistrationstatementforthesameoffering.☐IfthisFormisapost-effectiveamendmentfiledpursuanttoRule462(c)undertheSecuritiesAct,checkthefollowingboxandlisttheSecuritiesActregistrationstatementnumberoftheearliereffectiveregistrationstatementforthesameoffering.☐IfthisFormisaregistrationstatementpursuanttoGeneralInstructionI.D.orapost-effectiveamendmenttheretothatshallbecomeeffectiveuponfilingwiththeCommissionpursuanttoRule462(e)undertheSecuritiesAct,checkthefollowingbox.☐IfthisFormisapost-effectiveamendmenttoaregistrationstatementfiledpursuanttoGeneralInstructionI.D.filedtoregisteradditionalsecuritiesoradditionalclassesofsecuritiespursuanttoRule413(b)undertheSecuritiesAct,checkthefollowingbox.☐Indicatebycheckmarkwhethertheregistrantisalargeacceleratedfiler,anacceleratedfiler,anon-acceleratedfiler,asmallerreportingcompany,oranemerginggrowthcompany.Seethedefinitionsof“largeacceleratedfiler,”“acceleratedfiler,”“smallerreportingcompany”and“emerginggrowthcompany”inRule12b-2oftheExchangeAct.

Largeacceleratedfiler ☐ Acceleratedfiler ☐Non-acceleratedfiler ☒ Smallerreportingcompany ☐

Emerginggrowthcompany ☐Ifanemerginggrowthcompany,indicatebycheckmarkiftheregistranthaselectednottousetheextendedtransitionperiodforcomplyingwithanyneworrevisedfinancial

accountingstandardsprovidedpursuanttoSection7(a)(2)(B)ofSecuritiesAct.☐

CALCULATION OF REGISTRATION FEE

Title of each class ofsecurities to be registered

Amount to be

registered(1)

Proposed maximum

offering price per share(2)

Proposed maximum aggregate

offering price(2) Amount of

registration feeCommonStock,parvalue$0.01pershare 18,750,000 $6.362 $119,287,500 $14,457.65

(1) PursuanttoRule416undertheSecuritiesActof1933,asamended(the“SecuritiesAct”),thisRegistrationStatementshallbedeemedtocoveranindeterminatenumberofadditionalsecuritiestobeofferedasaresultofsharesplits,sharedividendsorsimilartransactionswithrespecttothesharesofcommonstockbeingregisteredpursuanttothisregistrationstatement.

(2) EstimatedsolelyforthepurposeofcomputingtheregistrationfeeinaccordancewithRule457(c)undertheSecuritiesAct.TheofferingpriceandregistrationfeearebasedupontheaverageofthehighandlowsalepricesforthesharesofcommonstockofADTInc.reportedbytheNewYorkStockExchangeonMarch15,2019.

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PROSPECTUS

ADT Inc.DIVIDEND REINVESTMENT PLAN

18,750,000 Shares of Common Stock

WeareofferingtoourstockholdersofrecordtheopportunitytopurchasesharesofourcommonstockthroughourDividendReinvestmentPlan(the“Plan”).ThePlanprovidesyouwithaconvenientmethodofpurchasingcommonstockatmarketpriceswithouthavingtopayanyserviceorprocessingfees.IfyouelecttoparticipateinthePlan,youmayhaveyourcashdividendsautomaticallyreinvestedinadditionalsharesofcommonstock.

ToparticipateinthePlan,youmayvisitAST’swebsite,https://us.astfinancial.com/InvestOnline/Invest/AllPlan,andfollowtheinstructionsprovided,oryoumaycomplete,signandmailanenrollmentformto:

AmericanStockTransfer&TrustCompany,LLCP.O.Box922

WallStreetStationNewYork,NY10269-0560

StockholderswhodonotwishtoparticipateinthePlanwillreceivecashdividends,asdeclared.

WewillissuenewsharesofourcommonstocktomeettherequirementsofthePlan.ThepurchasepriceofsharesofcommonstockpurchasedfromuspursuanttothePlanwithreinvesteddividendswillbeequalto100%oftheweightedaverageofthehighandlowsalespriceofoursharesofcommonstockontheNewYorkStockExchange(“NYSE”)onthefivetradingdaysprecedingtherelevantcashdividendpaymentdate.

Ourboardofdirectorsmay,initssolediscretion,atanytime,witheffectatthetimeofdeclarationofthenextdividendpayment,determinetochangetheplan,includingbychangingthethen-applicablediscount,orterminatetheplanaltogether.

Wearecurrentlya“controlledcompany”underthecorporategovernancerulesforNewYorkStockExchange-listedcompaniesandareexemptfromcertaincorporategovernancerequirementsoftherules.See“RiskFactors.”OursharesofcommonstockarelistedontheNewYorkStockExchange,orthe“NYSE,”underthesymbol“ADT.”

YourparticipationinthePlanisvoluntary,andyoumayterminateyourparticipationatanytime.YoushouldreadthisprospectuscarefullysoyouwillknowhowourPlanworksandthenretainitforfuturereference.Investing in our shares ofcommon stock involves risks that are described in the “ Risk Factors ” section beginning on page 2 of this prospectusand “Item 1A. Risk Factors” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2018, which isincorporated by reference into this prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities ordetermined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is March 22, 2019.

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TABLE OF CONTENTSABOUTTHISPROSPECTUS iiINCORPORATIONOFDOCUMENTSBYREFERENCE iiiWHEREYOUCANFINDMOREINFORMATION ivCAUTIONARYNOTEREGARDINGFORWARD-LOOKINGSTATEMENTS vADTINC. 1RISKFACTORS 2THEPLAN 3USEOFPROCEEDS 9MATERIALU.S.FEDERALINCOMETAXCONSIDERATIONS 10PLANOFDISTRIBUTION 15LEGALMATTERS 16EXPERTS 16SIGNATURES II-5POWEROFATTORNEY II-5

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ABOUT THIS PROSPECTUS

Tounderstandthetermsofthesecuritiesofferedbythisprospectus,youshouldcarefullyreadthisprospectus.Youshouldalsoreadthedocumentsreferredtoundertheheading“WhereYouCanFindMoreInformation”forinformationonusandthebusinessconductedbyus.

ThisprospectusispartofaregistrationstatementonFormS-3thatADTInc.,aDelawarecorporation,hasfiledwiththeU.S.SecuritiesandExchangeCommission(the“SEC”).Unlessotherwiseindicatedorthecontextotherwiserequires,referencesinthisregistrationstatementonFormS-3to(i)“we,”“our,”“us,”“ADT,”andthe“Company”refertoADTInc.,aDelawarecorporation(formerlynamedPrimeSecurityServicesParent,Inc.)andeachofitsconsolidatedsubsidiaries,and(ii)“Apollo”referstoApolloGlobalManagement,LLC,itssubsidiariesanditsaffiliates.

THE SECURITIES OFFERED HEREBY HAVE NOT BEEN RECOMMENDED BY ANY UNITED STATES FEDERAL OR STATESECURITIES COMMISSION OR REGULATORY AUTHORITY. FURTHERMORE, THE FOREGOING AUTHORITIES HAVE NOTCONFIRMED THE ACCURACY OR DETERMINED THE ADEQUACY OF THIS DOCUMENT. ANY REPRESENTATION TO THECONTRARY IS A CRIMINAL OFFENSE.

Wehavenotauthorizedanyonetoprovideyouwithinformationortomakeanyrepresentationsaboutanythingnotcontainedinthisprospectusorthedocumentsincorporatedbyreferenceinthisprospectus.Youmustnotrelyonanyunauthorizedinformationorrepresentations.

Thisprospectusdoesnotconstituteanoffertosellorthesolicitationofanoffertobuyanysecuritiesotherthantheregisteredsecuritiestowhichtheyrelate.Thedistributionofthisprospectusandtheofferingandsaleofthesharesofcommonstockincertainjurisdictionsmayberestrictedbylaw.Werequirepersonsintowhosepossessionthisprospectuscomestoinformthemselvesaboutandtoobserveanysuchrestrictions.Thisprospectusdoesnotconstituteanofferof,oraninvitationtopurchase,anysharesofcommonstockinanyjurisdictioninwhichsuchofferorinvitationwouldbeunlawful.

The information contained or incorporated by reference in this prospectus is accurate as of the dates of the applicable documents. Ourbusiness, financial condition, results of operations and prospects may have changed since the applicable dates. When this prospectus is delivered orsale pursuant to this prospectus is made, we are not implying that the information is current as of the date of the delivery or sale.

You should not consider any information in this prospectus or in the documents incorporated by reference herein to be investment, legal ortax advice. We encourage you to consult your own counsel, accountant and other advisors for legal, tax, business, financial and related adviceregarding an investment in our shares of common stock under the Plan.

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INCORPORATION OF DOCUMENTS BY REFERENCE

Inthisprospectus,we“incorporatebyreference”certaininformationthatwefilewiththeSEC,whichmeansthatwecandiscloseimportantinformationtoyoubyreferringyoutothatinformation.Theinformationweincorporatebyreferenceisanimportantpartofthisprospectus,andlaterinformationthatwefilewiththeSECwillautomaticallyupdateandsupersedethisinformation.ThefollowingdocumentshavebeenfiledbyuswiththeSECandareincorporatedbyreferenceintothisprospectus:

• OurAnnualReportonForm10-KforthefiscalyearendedDecember31,2018,filedwiththeSEConMarch11,2019(the“2018AnnualReport”);

• OurCurrentReportsonForm8-KfiledwiththeSEConJanuary2,2019,February1,2019,March11,2019,March18,2019andMarch21,2019(ineachcase,otherthaninformationfurnishedpursuanttoItem2.02orItem7.01ofanysuchCurrentReportonForm8-K);

• AlldocumentsfiledbytheCompanyunderSections13(a),13(c),14or15(d)oftheSecuritiesExchangeActof1934,asamended(the

“ExchangeAct”),afterthedateofthisprospectusandbeforetheterminationoftheofferingtowhichthisprospectusrelates(otherthaninformationfurnishedpursuanttoItem2.02orItem7.01ofanyCurrentReportonForm8-K,unlessexpresslystatedotherwisetherein);

• ThedescriptionofourcommonstocksetforthinourregistrationstatementfiledonForm8-ApursuanttoSection12oftheSecurities

ExchangeActof1934,asamended(the“ExchangeAct”),withtheSEConJanuary18,2018,andanyamendmentorreportfiledforthepurposeofupdatingthatdescription;and

• TheADTCorporation’s(a)UnauditedInterimCondensedConsolidatedFinancialStatementsfortheperiodsendedMarch31,2016andMarch27,2015and(b)theAuditedConsolidatedFinancialStatementsfortheyearsendedSeptember25,2015,September26,2014andSeptember27,2013,bothofwhichareincludedinourregistrationstatementfiledonFormS-1withtheSEC,asdeclaredeffectivebytheSEConJanuary18,2018.

AlldocumentsandreportsthatwefilewiththeSEC(otherthananyportionofsuchfilingsthatarefurnishedunderapplicableSECrulesratherthanfiled)underSections13(a),13(c),14or15(d)oftheExchangeActfromthedateofthisprospectusuntilthecompletionoftheofferingunderthisprospectusshallbedeemedtobeincorporatedinthisprospectusbyreference.Theinformationcontainedonoraccessiblethroughourwebsiteatwww.ADT.comisnotincorporatedintothisprospectus.

Youmayrequestacopyofthesefilings,otherthananexhibittothesefilingsunlesswehavespecificallyincludedorincorporatedthatexhibitbyreferenceintothefiling,fromtheSECasdescribedunder“WhereYouCanFindMoreInformation”or,atnocost,bywritingortelephoningADTInc.atthefollowingaddress:

ADTInc.1501YamatoRoad

BocaRaton,FL33431(561)322-7235

Attention:GeneralCounsel

Anystatementcontainedinadocumentincorporatedordeemedtobeincorporatedbyreferenceintothisprospectuswillbedeemedtobemodifiedorsupersededforpurposesofthisprospectustotheextentthatastatementcontainedinthisprospectusoranyothersubsequentlyfileddocumentthatisdeemedtobeincorporatedbyreferenceintothisprospectusmodifiesorsupersedesthestatement.Anystatementsomodifiedorsupersededwillnotbedeemed,exceptassomodifiedorsuperseded,toconstituteapartofthisprospectus.

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WHERE YOU CAN FIND MORE INFORMATION

WehavefiledwiththeSECaregistrationstatementonFormS-3withrespecttothesharesofcommonstockbeingissuedpursuanttothePlan.Thisprospectusconstitutesapartofthatregistrationstatement.Thisprospectusdoesnotcontainalltheinformationsetforthintheregistrationstatementandtheexhibitsandschedulestotheregistrationstatement,becausesomepartshavebeenomittedinaccordancewiththerulesandregulationsoftheSEC.ForfurtherinformationwithrespecttousandoursharesofcommonstockbeingissuedpursuanttothePlan,youshouldrefertotheregistrationstatement,includingthedocumentsincorporatedherein,andtheexhibitsandschedulesfiledaspartoftheregistrationstatement.Statementscontainedinthisprospectus,includingthedocumentsincorporatedherein,regardingthecontentsofanyagreement,contractorotherdocumentreferredtoarenotnecessarilycomplete.Referenceismadeineachinstancetothecopyofthedocumentfiledasanexhibittotheregistrationstatement,includingthedocumentsincorporatedherein.Eachsuchstatementisqualifiedbyreferencetotheapplicableexhibit.Youmayobtainacopyoftheregistrationstatement,includingthedocumentsincorporatedherein,withoutchargefromtheSEC’swebsite,whichiswww.sec.gov.

WearesubjecttotheinformationalrequirementsoftheExchangeActandarerequiredtofilereportsandotherinformationwiththeSEC.YoucanobtaincopiesofthesereportsandinformationorinspectthemwithoutchargeattheSEC’swebsite.Wefurnishourstockholderswithannualreportscontainingconsolidatedfinancialstatementsauditedbyourindependentregisteredpublicaccountingfirm.Wemaintainawebsiteatwww.ADT.com.Ourwebsiteandtheinformationcontainedthereinorconnectedtheretoshallnotbedeemedtobeincorporatedintothisprospectusortheregistrationstatementofwhichthisprospectusformsapart,andyoushouldnotrelyonanysuchinformationinmakingyourdecisionwhethertopurchaseoursharesofcommonstock.

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

Thisprospectuscontains“forward-lookingstatements”withinthemeaningoftheU.S.PrivateSecuritiesLitigationReformActof1995,whichinvolverisksanduncertainties.Allstatementsotherthanstatementsofhistoricalfactscontainedinthisprospectus,includingstatementsregardingourstrategy,futureoperations,futurefinancialposition,futurerevenue,projectedcosts,prospects,plans,objectivesofmanagement,andexpectedmarketgrowthareforward-lookingstatements.Theforward-lookingstatementsarecontainedprincipallyinthesectionsentitled“ADTInc.,”“RiskFactors,”“ThePlan,”“UseofProceeds,”and“PlanofDistribution.”Withoutlimitingthegeneralityoftheprecedingsentence,anytimeweusethewords“expects,”“intends,”“will,”“anticipates,”“believes,”“confident,”“continue,”“propose,”“seeks,”“could,”“may,”“should,”“estimates,”“forecasts,”“might,”“goals,”“objectives,”“targets,”“planned,”“projects,”and,ineachcase,theirnegativeorothervariousorcomparableterminologyandsimilarexpressions,weintendtoclearlyexpressthattheinformationdealswithpossiblefutureeventsandisforward-lookinginnature.However,theabsenceofthesewordsorsimilarexpressionsdoesnotmeanthatastatementisnotforward-looking.ForADT,particularuncertaintiesthatcouldcauseouractualresultstobemateriallydifferentthanthoseexpressedinourforward-lookingstatementsinclude,withoutlimitation:

• ourabilitytomaintainandgrowourexistingcustomerbase;

• ourabilitytointegratethebusinessesofADT,Protection1,RedHawkandothercompanieswehaveacquiredinanefficientandcost-effectivemanner;

• theamountandtimingofourcashflowsandearnings,whichmaybeimpactedbycustomer,competitive,supplierandotherdynamicsandconditions;

• ourabilitytomaintainorimprovemarginsthroughbusinessefficiencies;

• ourabilitytosuccessfullyupgradeobsoleteequipment,suchas3GandCDMAcommunicationsequipmentinstalledatourcustomers’premises,inanefficientandcost-effectivemanner;

• ourabilitytolaunchnewproductandserviceofferingsthatachievemarketacceptancewithacceptablemargins;

• changesinlaw,economicandfinancialconditions,includingtaxlawchanges,changestoprivacyrequirements,changestotelemarketing,emailmarketingandsimilarconsumerprotectionlaws,interestandexchangeratevolatility,andtradetariffsapplicabletotheproductswesell;

• theimpactofpotentialinformationtechnology,cybersecurityordatasecuritybreaches;

• theotherfactorsthataredescribedinthisreportundertheheading“RiskFactors.”

Theseforward-lookingstatementsreflectourviewswithrespecttofutureeventsasofthedateofthisprospectusandarebasedonassumptionsandsubjecttorisksanduncertainties.Thesefactorsshouldnotbeconstruedasexhaustiveandshouldbereadinconjunctionwiththeothercautionarystatementsthatareincludedorincorporatedbyreferenceinthisprospectusandinotherfilings.Giventheseuncertainties,youshouldnotplaceunduerelianceontheseforward-lookingstatements.Theseforward-lookingstatementsrepresentourestimatesandassumptionsonlyasofthedateofthisprospectusand,exceptasrequiredbylaw,weundertakenoobligationtoupdateorreviewpubliclyanyforward-lookingstatements,whetherasaresultofnewinformation,futureevents,orotherwiseafterthedateofthisprospectus.Weanticipatethatsubsequenteventsanddevelopmentswillcauseourviewstochange.Youshouldreadthisprospectusandthedocumentsfiledasexhibitstotheregistrationstatement,ofwhichthisprospectusisapartcompletelyandwiththeunderstandingthatouractualfutureresultsmaybemateriallydifferentfromwhatweexpect.Ourforward-lookingstatementsdonotreflectthepotentialimpactofanyfutureacquisitions,merger,dispositions,jointventures,orinvestmentswemayundertake.Wequalifyallofourforward-lookingstatementsbythesecautionarystatements.

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ADT INC.

WearealeadingproviderofmonitoredsecurityandinteractivehomeandbusinessautomationsolutionsintheUnitedStates(or“U.S.”)andCanada.Ourmissionistohelpourcustomersprotectandconnecttowhatmattersmost—theirfamilies,homes,andbusinesses.TheADTbrandissynonymouswithsecurityand,asthemostrecognizedandtrustedbrandintheindustry,isakeydriverofoursuccess.Wecurrentlyserveapproximately7.2millioncustomers,excludingcontractsmonitoredbutnotowned,makingusoneofthelargestcompaniesofourkindintheU.S.andCanada.Wearealsooneofthelargestfull-servicecompanieswithanationalfootprintprovidingbothresidentialandcommercialmonitoredsecurity.Wedeliveranintegratedcustomerexperiencebymaintainingoneoftheindustry’slargestsales,installation,andservicefieldforces,aswellasa24/7professionalmonitoringnetwork,allsupportedbyapproximately19,000employees.Wehandleapproximately15millionalarmsannually.Weprovidesupportfromapproximately240salesandservicelocationsandthroughour12monitoringcenterslistedbyUnderwritersLaboratoriesintheU.S.andCanada.

ADTInc.isapubliccompanyincorporatedinDelaware.OurcommonstocktradesontheNYSEunderthesymbol“ADT.”Ourprincipalexecutiveofficesarelocatedat1501YamatoRoad,BocaRaton,Florida33431,anditstelephonenumberis(561)322-7235.

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RISK FACTORS

Investinginoursecuritiesinvolvesahighdegreeofrisk.Youshouldcarefullyconsiderthediscussionofrisksundertheheading“Item1A.RiskFactors”inthe2018AnnualReportandtheotherdocumentsthatareincorporatedbyreferenceinthisprospectus.Pleaseseethesectionofthisprospectusentitled“IncorporationofDocumentsbyReference.”Theoccurrenceofoneormoreofthoseriskfactorscouldadverselyimpactourbusiness,financialconditionorresultsofoperations.Insuchacase,youmayloseallorpartofyouroriginalinvestment.

InadditiontotheriskfactorsincorporatedbyreferenceintothisProspectusbytheprecedingparagraph,belowisadescriptionofcertainrisksthatyoumayfacebyvirtueofyourparticipationinthePlan.Theremaybeadditionalrisksthatarenotlistedbeloworinthereferenceddocuments,andyoushouldconsultyourfinancial,tax,legalandotheradvisorspriortodeterminingwhethertoparticipateinthePlan.

There is no price protection for your shares of common stock in the Plan.

YourinvestmentinthesharesofcommonstockheldinthePlanwillbeexposedtochangesinmarketconditionsandchangesinthemarketvalueofsharesofcommonstock.YourabilitytoliquidateorotherwisedisposeofsharesofcommonstockinthePlanissubjecttothetermsofthePlanandthewithdrawalproceduresunderthePlan.YoumaynotbeabletowithdraworsellyoursharesofcommonstockinthePlanintimetoreacttomarketconditions.

The purchase price for shares of common stock purchased or sold under the Plan will vary.

ThepurchasepriceforanysharesofcommonstockthatyoupurchaseorsellunderthePlanwillvaryandcannotbepredicted.Youmaypurchaseorsellsharesofcommonstockatapurchasepricethatisdifferentfrom(moreorlessthan)thepricethatyouwouldfaceifyouacquiredorsoldsharesontheopenmarketontherelateddividendpaymentdate.

The market price for our shares of common stock varies, and you should purchase shares of common stock for long-term investment only.

AlthoughoursharesofcommonstockarelistedontheNYSE,oursharesofcommonstockmaynotbeactivelytraded.Wecannotassureyouthattherewill,atanytimeinthefuture,beanactivetradingmarketforoursharesofcommonstock.Evenifthereisanactivetradingmarketforoursharesofcommonstock,wecannotassureyouthatyouwillbeabletosellallofyoursharesofcommonstockatonetimeoratafavorableprice,ifatall.Asaresult,youshouldparticipateinthePlanonlyifyouarecapableof,andseeking,tomakealong-terminvestmentinsharesofcommonstock.

We may not be able to pay dividends.

Althoughwehavepaiddividendsonoursharesofcommonstockinthepast,thereisnoassurancethatwewillcontinuetopaydividendsatthesamerateasinthepast,oratall.Pursuanttoouramendedandrestatedcertificateofincorporationandamendedandrestatedbylaws,ourboardofdirectorshasthediscretiontoauthorizedividends,subjecttocertainlimitationsimposedunderDelawarelaw.Ifweareunabletomaintainprofitabilityorifourboardofdirectorsdoesnotauthorizedividends,wemaynotbeabletomakecashdistributionstoourstockholders.

You may incur tax obligations without receiving cash with which to pay those obligations.

IfyoureinvestdividendsunderthePlan,youwillbetreatedforU.S.federalincometaxpurposesashavingreceivedadistributiononthedividendpaymentdate,whichmaygiverisetoataxpaymentobligationwithoutprovidingyouwithcashtopaysuchtaxwhenitbecomesdue.SeeQuestion18under“ThePlan—CommonlyAskedQuestions”and“MaterialU.S.FederalIncomeTaxConsiderations”foradescriptionofcertainU.S.federalincometaxconsequencesofparticipatinginthePlan.

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THE PLAN

Plan Overview

ThePlanoffersasimple,convenientandno-costwayforownersofoursharesofcommonstocktoinvestalloraportionoftheircashdividendsinoursharesofcommonstock.ThePlanisdesignedforlong-terminvestorswhowishtoinvestandbuildtheirownershipofoursharesofcommonstockovertime.Unlikeanindividualbrokerageaccount,thetimingofpurchasesissubjecttotheprovisionsofthePlan.TheprincipaltermsandconditionsofthePlanaresummarizedunder“CommonlyAskedQuestions”below.

WehaveappointedAmericanStockTransfer&TrustCompany,LLC,orthe“Administrator,”toadministerthePlan,andcertainadministrativesupportwillbeprovidedtotheAdministratorbyitsdesignatedaffiliates.Together,theAdministratoranditsaffiliateswillpurchaseandholdsharesofcommonstockforPlanparticipants,keeprecords,sendstatementsandperformotherdutiesrequiredbythePlan.

OnlyregisteredholdersofoursharesofcommonstockcanparticipatedirectlyinthePlan.Ifyouareabeneficialownerofsharesofcommonstockinabrokerageaccountandwishtoreinvestyourcashdividends,youcanmakearrangementswithyourbrokerornomineetoparticipateinthePlanonyourbehalf,oryoucanrequestthatyoursharesofcommonstockbecomeregisteredinyourname.

PleasereadthisentireprospectusforamoredetaileddescriptionofthePlan.IfyouarearegisteredholderofoursharesofcommonstockandwouldliketoparticipateinthePlan,youcanenrollonlinebyfollowingtheenrollmentproceduresspecifiedontheAdministrator’swebsiteathttps://us.astfinancial.com/InvestOnline/Invest/AllPlanorbycompletingandsigninganenrollmentformandreturningittotheAdministratorattheaddressandtelephonenumberprovidedinQuestion6,orviatheInternetattheAdministrator’swebsiteatwww.astfinancial.com.

Commonly Asked Questions

1. How can I participate in the Plan?

Ifyouareacurrentholderofrecord,orregisteredholder,ofoursharesofcommonstock,youmayparticipatedirectlyinthePlan.Ifyouownsharesofcommonstockthatareregisteredinsomeoneelse’sname(forexample,abank,brokerortrustee),thePlanallowsyoutoparticipatethroughsuchperson,shouldtheyelecttoparticipate,withouthavingtowithdrawyoursharesofcommonstockfromsuchbank,brokerortrustee.IfyourbrokerorbankelectsnottoparticipateinthePlanonyourbehalf,youcanparticipatebywithdrawingyoursharesofcommonstockfromsuchbankorbrokerandregisteringyoursharesofcommonstockinyourname.

2. How do I get started?

Ifyouarearegisteredholderofoursharesofcommonstock,onceyouhavereadthisprospectus,youcangetstartedbyenrollinginthePlanonlinebyfollowingtheenrollmentproceduresspecifiedontheAdministrator’swebsiteathttps://us.astfinancial.com/InvestOnline/Invest/AllPlanorbycompletingandsigninganenrollmentform(seeQuestion6)andreturningittotheAdministrator.Ifyouareabeneficialownerofsharesofcommonstockinabrokerageaccount,onceyouhavereadthisprospectus,youshouldmakearrangementswithyourbrokerornomineetoparticipateinthePlanonyourbehalf.

IftheAdministratorreceivesyourenrollmentformonorbeforetherecorddateforthepaymentofthenextcashdividend,theamountofthecashdividendthatyouelecttobereinvestedwillbeinvestedinadditionalsharesofcommonstockforyourPlanaccount.Iftheenrollmentformisreceivedintheperiodafteranyrecorddate,thatcashdividendwillbepaidtoyouandyourinitialcashdividendreinvestmentwillcommencewiththefollowingcashdividend.

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Onceyouhaveenrolled,yourparticipationcontinuesautomatically,foraslongasyouwish(seeQuestion3onhowtoterminateyourparticipationandQuestion4onhowtomodifyyourparticipation).Ifyouownsharesofcommonstockthatareregisteredinsomeoneelse’sname(forexampleabank,brokerortrustee),thenyoushouldcontactsuchpersontoarrangeforthemtoparticipateinthePlanonyourbehalf.

3. How can I withdraw from the Plan?

IfyouarearegisteredholderofoursharesofcommonstockandyouareparticipatinginthePlan,youmaydiscontinuethereinvestmentofyourcashdividendsatanytimebyprovidingnoticetotheAdministrator.Inaddition,youmaychangeyourcashdividendelectiononlineundertheAdministrator’saccountmanagementservice,accessibleatwww.astfinancial.com.AnoticeofwithdrawalforanyparticularcashdividendpaymentwillbeeffectiveonlyiftheAdministratorreceivessuchnoticepriortotherecorddateforsuchcashdividend.Futuredividendspaidafterreceiptofyourrequesttowithdrawwillbepaidincash.

IfyouareabeneficialownerofoursharescommonstockandyouareparticipatinginthePlanthroughyourbroker,youshoulddirectyourbrokertodiscontinueparticipationinthePlanonyourbehalf.

Generally,anownerofsharesofcommonstockmayagainbecomeaparticipantinthePlan.However,wereservetherighttorejecttheenrollmentofapreviousparticipantinthePlanongroundsofexcessivejoiningandtermination.ThisreservationisintendedtominimizeadministrativeexpenseandtoencourageuseofthePlanasalong-terminvestmentservice.

Pleasenotethatuponreceiptofwrittennoticeofaparticipant’sdeath,theAdministratorshallterminatesuchparticipantsenrollmentinthePlan.

4. How can I modify my participation in the Plan?

IfyouarearegisteredholderofoursharesofcommonstockandyouareparticipatinginthePlan,youmaymodifythereinvestmentofyourcashdistributionsatanytimebyprovidingnoticetotheAdministrator.Inaddition,youmaymodifyyourcashdistributionelectiononlineundertheAdministrator’saccountmanagementservice,accessibleatwww.astfinancial.com.AnoticeofmodificationforanyparticularcashdistributionpaymentwillbeeffectiveonlyiftheAdministratorreceivessuchnoticepriortotherecorddateforsuchcashdividend.

IfyouareabeneficialownerofoursharescommonstockandyouareparticipatinginthePlanthroughyourbroker,youshoulddirectyourbrokertomodifyyourparticipationinthePlanonyourbehalf.

5. How are dividends reinvested?

ByenrollinginthePlan,youdirecttheAdministratortoapplycashdividendstothepurchaseofadditionalsharesofcommonstockinaccordancewiththetermsandconditionsofthePlan.Youmayelecttoreinvestalloraportionofyourcashdividendsinadditionalsharesofcommonstock.TheAdministratorwillinvestdividendsinwholeandfractionalsharesofcommonstockonthequarterlydividendpaymentdate(whichwillbetheinvestmentdate).NointerestwillbepaidonfundsheldbytheAdministratorpendinginvestment,ifany.

IftheAdministratorreceivesyourenrollmentformonorbeforetherecorddateforthepaymentofthenextcashdividend,theamountofthecashdividendthatyouelecttobereinvestedwillbeinvestedinadditionalsharesofcommonstockforyourPlanaccount.Ifyoursharesofcommonstockareheldinsomeoneelse’sname(forexample,abank,brokerortrustee),anysharesofcommonstockpurchasedthroughthePlanmaytakeupanumberofdaystobetransferredtotheaccountofsuchotherperson.Iftheenrollmentformisreceivedintheperiodafteranyrecorddate,thatcashdividendwillbepaidtoyouandyourinitialcashdividendreinvestmentwillcommencewiththefollowingcashdividend.

Youmaywithdrawormodifyyourcashdividendreinvestmentelectionatanytime.SeeQuestions3and4.

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6. When are dividends reinvested?

Theinvestmentdatewillbethecashdividendpaymentdateforeachquarter.Therecorddateforeligibilitytoreceivecashdividendsgenerallywillbeatleast15daysbeforethedateuponwhichcashdividendsarepaid.Ifyoursharesofcommonstockareheldinsomeoneelse’sname(forexample,abank,brokerortrustee),anysharesofcommonstockpurchasedthroughthePlanmaytakeupanumberofdaystobetransferredtotheaccountofsuchotherperson.

7. What is the source and price of shares of common stock purchased under the Plan?

WewilluseourauthorizedbutunissuedsharesofcommonstockforallsharesofcommonstocktobepurchasedunderthePlan.Thepriceforauthorizedbutunissuedsharesofcommonstockpurchasedwithreinvestedcashdividendswillbethevolume-weightedaveragepriceofoursharesofcommonstockontheNewYorkStockExchangeforthefivetradingdayperiodimmediatelyprecedingtheinvestmentdate,lessadiscountrangingfrom0%to5%.Ourboardofdirectorshassettheinitialdiscountat0.0%.Therefore,theinitialpurchasepriceforauthorizedbutunissuedsharesofcommonstockpurchasedwithreinvestedcashdividendswillbe100%ofsuchaverageclosingprice.(Note:IfyouparticipateinthePlanthroughyourbroker,youshouldconsultwithyourbrokertodetermineifyourbrokerwillchargeyouaservicefee.)Pleasenote,however,thatourboardofdirectorsmay,fromtimetotime,changethediscountrate.Wewillprovidenoticetoyouofanychangesinthediscountrateatleast15dayspriortothefollowingrecorddate.

8. Who is the Administrator of the Plan?

AmericanStockTransfer&TrustCompany,LLCistheAdministratorofthePlan.CertainadministrativesupportwillbeprovidedtotheAdministratorbyitsdesignatedaffiliates.Fortransactionrequests,pleasewritetotheAdministratoratthefollowingaddress:

AmericanStockTransfer&TrustCompany,LLCWallStreetStationP.O.Box922

NewYork,NewYork10269-0560.

ForallothercorrespondenceregardingthePlan,pleasewritetotheAdministratoratthefollowingaddress:

AmericanStockTransfer&TrustCompany,LLC6201FifteenthAvenue

Brooklyn,NewYork11219

Inaddition,youmaycalltheAdministratorat(800)278-4353orcontacttheAdministratorviatheInternetatwww.astfinancial.com.

PleaseincludeareferencetoADTInc.andthisPlaninallcorrespondence.

9. What is the cost of participating in the Plan?

ThereisnofeeforreinvestingyourcashdividendsthroughthePlan.YoumayberesponsibleforcertainchargesifyouwithdrawfromthePlan.Additionally,ifyouareabeneficialownerofoursharesofcommonstockandareparticipatinginthePlanthroughyourbroker,youshouldconsultwithyourbrokerwhomaychargeyouafeeforparticipatinginthePlanonyourbehalf.

10. How many shares of common stock will be purchased for my account?

IfyouarearegisteredholderofoursharesofcommonstockandaredirectlyparticipatinginthePlan,thenumberofsharesofcommonstock,includingfractionalsharesofcommonstock,purchasedunderthePlanwill

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dependontheamountofyourcashdividendyouelecttoreinvestandthepriceofthesharesofcommonstockdeterminedasprovidedabove.SharesofcommonstockpurchasedunderthePlan,includingfractionalsharesofcommonstock,willbecreditedtoyouraccount.Bothwholeandfractionalsharesofcommonstockwillbepurchased.Fractionalsharesofcommonstockwillbecomputedtothreedecimalplaces.

IfyouareabeneficialownerandareparticipatinginthePlanthroughyourbroker,youshouldcontactyourbrokerforthedetailsofhowthenumberofsharesofcommonstockyoupurchasewillbedetermined.

Thisprospectusrelatesto18,750,000sharesofourcommonstockregisteredforsaleunderthePlan.WecannotassureyoutherewillbeenoughsharesofcommonstocktomeettherequirementsunderthePlan.IfwedonothaveasufficientnumberofauthorizedbutunissuedsharesofcommonstocktomeetthePlanrequirementsduringanyquarter,anyreinvesteddividendsreceivedbytheAdministratorbutnotinvestedinoursharesofcommonstockunderthePlanwillbereturnedtoparticipantswithoutinterest.

11. How will my shares of common stock be held under the Plan?

IfyouarearegisteredholderofoursharesofcommonstockandyouaredirectlyparticipatinginthePlan,thesharesofcommonstockthatyouacquireunderthePlanwillbemaintainedinyourPlanaccountinbook-entryform.

IfyouareabeneficialownerofoursharesofcommonstockandyouareparticipatinginthePlanthroughyourbroker,thesharesofcommonstockthatarepurchasedonyourbehalfunderthePlanwillbemaintainedinyouraccountwithyourbroker.

12. How do I sell shares of common stock held under the Plan?

IfyouarearegisteredholderofoursharesofcommonstockandyouaredirectlyparticipatinginthePlan,youcansellyourPlancommonstockatanytimebycontactingtheAdministrator.Yoursalerequestwillbeprocessed,andyoursharesofcommonstockwill,subjecttomarketconditionsandotherfacts,generallybesoldwithin24hoursofreceiptandprocessingofyourrequest.PleasenotethattheAdministratorcannotanddoesnotguaranteetheactualsaledateorprice,norcanitstoporcancelanyoutstandingsaleorissuancerequests.Allrequestsarefinal.WhenyoursharesofcommonstockaresoldthroughtheAdministrator,youwillreceivetheproceedsofsuchsalelessaservicefeeof$15.00andanybrokeragetradingfees,whicharecurrentlysetat$0.12pershareofcommonstock.TheAdministratorwillmailachecktoyou(lessapplicablesalesfees)onthesettlementdate,whichistwobusinessdaysafteryoursharesofcommonstockhavebeensold.

Alternatively,youmaychoosetowithdrawyoursharesofcommonstockfromyourPlanaccountandsellthemthroughabrokerofyourchoice,inwhichcaseyouwouldhavetorequestthattheAdministratorelectronicallytransferyoursharesofcommonstocktothebrokerthroughtheDirectRegistrationSystem.

IfyouareabeneficialownerofoursharesofcommonstockandyouareparticipatinginthePlanthroughyourbroker,youshouldcontactyourbrokertosellyoursharesofcommonstock.

Ifyoudisposeofallthesharesofcommonstockregisteredinyourname,butdonotgivenoticeofwithdrawaltotheAdministrator,theAdministratorwillcontinuetocomplywithyourparticipation,ifany,inthePlanonanysharesofcommonstockheldinyouraccountunderthePlanuntiltheAdministratorisnotifiedotherwise.

13. How will I keep track of my investments?

IfyouarearegisteredholderofoursharesofcommonstockandyouaredirectlyparticipatinginthePlan,theAdministratorwillsendyouatransactionnoticeconfirmingthedetailsofeachtransactionthatyoumakeandaquarterlystatementofyouraccount.

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IfyouareabeneficialownerofoursharesofcommonstockandyouareparticipatinginthePlanthroughyourbroker,thedetailsofthereinvestmenttransactionswillbemaintainedbyyourbroker.Youshouldcontactyourbrokertodeterminehowthisinformationwillbeprovidedtoyou.

14. Can the Plan be suspended, modified or terminated?

ThePlanwillterminateupontheearlierof(a)February27,2021and(b)thedateuponwhichanaggregateof18,750,000sharesofcommonstockhavebeenissuedpursuanttothePlan.

Additionally,wereservetherighttosuspend,modifyorterminatethePlanatanytime,andfromtimetotime.Participantswillbenotifiedofanysuspension,modificationorterminationofthePlan.IfyouarearegisteredholderofoursharesofcommonstockandyouaredirectlyparticipatinginthePlan,uponourterminationofthePlan,wewillissuetoyouthenumberofwholesharesofcommonstockinyouraccountanddocumentsuchissuancetoyournameinbook-entryformontheaccountsofourtransferagent.AnyfractionalsharesofcommonstockinyourPlanaccountwillbeconvertedtocashandremittedtoyoubycheck.

15. What would be the effect of any stock splits or distributions?

Ifwedistributeanypropertyotherthancashtotheholdersofoursharesofcommonstock,orifweeffectasplitofoursharesofcommonstock,suchpropertydistributedtoyoursharesofcommonstockunderthePlanshallbefullycreditedtoyouraccountunderthePlan.

Intheeventofarightsoffering,yourentitlementwillbebaseduponyourtotalholdings,includingthosecreditedtoyouraccountunderthePlan.RightsapplicabletosharesofcommonstockcreditedtoyouraccountunderthePlanwillbesoldbytheAdministratorandtheproceedswillbecreditedtoyouraccountunderthePlanandappliedtothepurchaseofsharesofcommonstockonthenextinvestmentdate.Ifyouwanttoexercise,transferorsellanyportionoftherightsapplicabletothesharesofcommonstockcreditedtoyouraccountunderthePlan,youmustrequest,atleasttwodayspriortotherecorddatefortheissuanceofanysuchrights,thataportionofthesharesofcommonstockcreditedtoyouraccountbetransferredfromyouraccountandregisteredinyourname.Transactionprocessingmayeitherbecurtailedorsuspendeduntilthecompletionofanydividend,stocksplitorothercorporateaction.

16. Can I vote shares of common stock acquired through the Plan?

Sharesofcommonstockheldinaparticipant’saccountbytheTrusteearevotedinthesamemannerassharesofcommonstockbeneficiallyownedbyastockholder,eitherbyproxyorbytheparticipantinperson.

17. May shares held in a Plan account be pledged?

No.Ifyouwishtopledgesharesofcommonstockthatarecreditedtoyouraccount,youwillfirsthavetorequestthatsuchsharesarewithdrawnfromthePlanandareissuedtoyournameinbook-entryformontheaccountsofourtransferagent.

18. What are the U.S. federal income tax consequences of purchasing shares of common stock under the Plan?

Ingeneral,youwillbetreated,forU.S.federalincometaxpurposes,ashavingreceived,onthedividendpaymentdate,adistributioninanamountequaltothefairmarketvalueofthesharesofcommonstock(withoutreductionforanydiscount,ifany)creditedtoyouraccountunderthePlan.SuchdistributionwillbetaxableasadividendforU.S.federalincometaxpurposestotheextentofADT’scurrentoraccumulatedearningsandprofits.AnyportionofthedistributioninexcessofADT’scurrentandaccumulatedearningsandprofitswillfirstbetreatedasatax-freereturnofcapitaltotheextentofyouradjustedtaxbasisinyoursharesofcommonstockin

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respectofwhichthedistributionwasreceivedandwillbeappliedagainstandreducesuchbasisonadollar-for-dollarbasis.Totheextentthatsuchdistributionexceedsyouradjustedtaxbasisinsuchsharesofcommonstock,thedistributionwillbetreatedascapitalgain.

PurchasingsharesofcommonstockpursuanttothePlanwillnotaffectthetaxobligationsassociatedwiththecommonstockyoucurrentlyown.However,participationinthePlanwillreducetheamountofcashdistributionsavailabletoyoutosatisfyanytaxobligationsassociatedwithowningsuchsharesofcommonstock.Pleaseread“MaterialU.S.FederalIncomeTaxConsiderations”forinformationrelevanttoholdersofsharesofcommonstockgenerally.

19. What provision is made for shareholders subject to income tax withholding?

Backupwithholdingatthethen-applicableratemayapplytotheamountofdividendsandtheproceedsofanysaleofsharesofcommonstockif:(i)youfailtofurnishaproperlycompletedFormW-9orappropriateFormW-8,ifapplicable,ortheequivalentthereof,or(ii)theIRSnotifiesusthatyouaresubjecttobackupwithholding.Thewithheldamountswillbedeductedfromthedividendsand/orproceedsofanysaleofsharesofcommonstockandtheremainingamountwillbesenttoyou.

Inthecaseofnon-U.S.shareholderswhosedividendsaresubjecttoU.S.incometaxwithholding,theamountoftaxtobewithheldwillbedeductedfromtheamountofdividendsotherwisereceivableandtheremainingamountofdividendswillbereinvested.Inthecaseofthosenon-U.S.shareholderswhosesaleproceedsaresubjecttowithholding,theamountoftaxtobewithheldwillbedeductedfromtheproceedsofthesaleofsharesofcommonstock.

Pleaseread“MaterialU.S.FederalIncomeTaxConsiderations”forinformationrelevanttoholdersofsharesofcommonstockgenerally.

Responsibilities Under the Plan

We,theAdministratorandanyagentwillnotbeliableinadministeringthePlanforanyactdoneingoodfaith,orforanyomissiontoactingoodfaithwithregardstopurchasingand/orsellingcommonstockforparticipantsand,including,withoutlimitation,anyclaimofliabilityarisingoutoffailuretoterminateaparticipant’saccountuponthatparticipant’sdeathpriortothereceiptofnoticeinwritingofsuchdeath.SincewehavedelegatedallresponsibilityforadministeringthePlantotheAdministrator,wespecificallydisclaimanyresponsibilityforanyofitsactionsorinactionsinconnectionwiththeadministrationofthePlan.

Youshouldrecognizethatneitherwe,theAdministrator,noranyagentcanassureyouofaprofitorprotectyouagainstaneconomiclossoncommonstockpurchasedunderthePlan.

General

WereservetherighttointerpretandregulatethePlanaswedeemnecessaryordesirableandanysuchinterpretationorregulationwillbefinal.

Anyreferencehereintoarecorddateorapaymentdatemeanssuchdatewithrespecttoacashdividendpayableonoursharesofcommonstock.

ThetermsandconditionsofthePlananditsoperationsaregovernedbythelawsoftheStateofDelaware.

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USE OF PROCEEDS

Thenetproceeds,ifany,werealizefromsalesofoursharesofcommonstockpursuanttothePlanwillbeusedforgeneralcorporatepurposes.

WedonotexpecttoinitiallyreceiveanyproceedsfromthesalesofsharesofcommonstockpursuanttothePlanasourboardofdirectorshassettheinitialdiscountforsalesofoursharesofcommonstockpursuanttothePlanat0.0%.

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MATERIAL U.S. FEDERAL INCOME TAX CONSIDERATIONS

ThefollowingsummarydescribescertainmaterialU.S.federalincometaxconsiderationswhichmaybeapplicabletoaholderofsharesofcommonstockthatparticipatesinthePlan.Asusedinthissection,theterm“U.S.Holder”meansabeneficialownerofashareofcommonstockthatis(i)acitizenorindividualresidentoftheUnitedStatesasdeterminedforU.S.federalincometaxpurposes,(ii)acorporationorotherentitytaxableasacorporationforU.S.federalincometaxpurposesthatisorganizedinorunderthelawsoftheUnitedStates,anystatethereofortheDistrictofColumbia,(iii)anestatetheincomeofwhichissubjecttoU.S.federalincometaxationwithoutregardtothesourcethereofor(iv)atrustifaU.S.courthasprimarysupervisionoveritsadministrationandoneormoreU.S.personshavetheauthoritytocontrolallsubstantialdecisionsofthetrust,orifthetrusthasavalidelectionineffectunderapplicableTreasuryRegulationstobetreatedasaU.S.person.Asusedinthissection,theterm“Non-U.S.Holder”meansabeneficialownerofashareofcommonstockthatisneitheraU.S.Holdernorapass-throughentity(includingapartnership),asdeterminedforU.S.federalincometaxpurposes.Ifapass-throughentity,includingapartnershiporotherentityclassifiedasapartnershipforU.S.federalincometaxpurposes,isabeneficialownerofsharesofcommonstock,theU.S.federalincometaxtreatmentofanownerorpartnergenerallywilldependuponthestatusofsuchownerorpartnerandupontheactivitiesofthepass-throughentity.Anyownerorpartnerofapass-throughentityholdingsharesofcommonstockisurgedtoconsultitsowntaxadvisor.

ThisdiscussionisbasedontheU.S.InternalRevenueCodeof1986,asamended(the“Code”),administrativepronouncements,judicialdecisions,existingandproposedTreasuryRegulationsandinterpretationsoftheforegoing,allasofthedatehereof.Alloftheforegoingauthoritiesaresubjecttochange(possiblywithretroactiveeffect),andanysuchchangemayresultinU.S.federalincometaxconsequencestoaholderthataremateriallydifferentfromthosedescribedbelow.NorulingsfromtheU.S.InternalRevenueService(the“IRS”)havebeenorwillbesoughtwithrespecttothemattersdescribedbelow,andconsequently,theIRSmaynottakeasimilarviewoftheconsequencesdescribedbelow.

ThissummarydoesnotpurporttobeafulldescriptionofallU.S.federalincometaxconsiderationsthatmayberelevanttoaholderinlightofsuchholder’sparticularcircumstancesandonlyaddressesholdersthatholdsharesofcommonstockascapitalassets(generally,propertyheldforinvestment)withinthemeaningofSection1221oftheCode.Furthermore,thissummarydoesnotaddresstheU.S.federalincometaxconsiderationsapplicabletoholderssubjecttospecialrules,suchascertainfinancialinstitutions,realestateinvestmenttrusts,regulatedinvestmentcompaniesorinsurancecompanies;tax-exemptorganizations,charitableremaindertrusts,qualifiedretirementplans,individualretirementaccounts,orothertax-deferredaccounts;tradersinsecuritiesthatelecttouseamark-to-marketmethodofaccounting;dealersinsecuritiesorcurrencies;personsholdingsharesofcommonstockinconnectionwithahedgingtransaction,“straddle”,conversiontransactionorotherintegratedtransaction;personsthatowndirectly,indirectlyorconstructivelytenpercentormore,byvotingpower,oftheoutstandingequityinterestsofADT;personsthatacquiredthesharesofcommonstockinconnectionwiththeexerciseofemployeestockoptionsorotherwiseascompensationforservices;personswhose“functionalcurrency”isnottheU.S.dollar;personssubjecttothealternativeminimumtax;personsthatarerequiredtoreportincomenolaterthanwhensuchincomeisreportedinan“applicablefinancialstatement”;U.S.expatriatesandforeigngovernmentsandotherentitiesthatareeligibleforthebenefitsofSection892oftheCode.Inaddition,thisdiscussiondoesnotincludeanydescriptionofanyestateandgifttaxconsequences,orthetaxlawsofanystate,local,non-U.S.orothergovernmentthatmaybeapplicable.

Thefollowingdiscussionisforgeneralinformationonlyandisnotintendedtobe,norshoulditbeconstruedtobe,legalortaxadvicetoanyparticularPlanparticipantorprospectivePlanparticipant,andnoopinionorrepresentationwithrespecttotheU.S.federalincometaxconsequencestoanyparticularPlanparticipantorprospectivePlanparticipantismade.HoldersofsharesofcommonstockareurgedtoconsulttheirtaxadvisorswithrespecttotheU.S.federal,stateandlocaltaxconsequences,thenon-U.S.taxconsequencesandthenon-taxconsequencesofparticipatinginthePlan.

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U.S. Holders

Amount Includible in Income

ForU.S.federalincometaxpurposes,aU.S.Holderwillbetreatedasreceivingadistributioninanamountequaltothesumof(i)thefairmarketvalueofsharesofcommonstockacquiredpursuanttothePlan(withoutreductionforanydiscount,ifany)and(ii)anytaxeswithheldunderthebackupwithholdingruleswithrespecttothedistribution,ifany.Forthesepurposes,weintendtotreatthe“fairmarketvalue”ofsharesofcommonstockacquiredunderthePlanastheweightedaverageofthehighandlowsalespriceofoursharesofcommonstockontheNYSEonthefivetradingdaysprecedingtherelevantcashdividendpaymentdate.ThedistributionwillbeincludibleinincomebyaU.S.HolderasdividendincometotheextentsuchdistributionismadeoutofthecurrentoraccumulatedearningsandprofitsofADTasdeterminedunderU.S.federalincometaxprinciples.Anysuchdividendreceivedbynon-corporateU.S.Holderswillgenerallybe“qualifieddividendincome”tosuchU.S.Holders,whichwillbesubjecttoU.S.federalincometaxatpreferentialrates.CertaincorporateU.S.Holdersmaybeentitledtoadividendsreceiveddeductionwithrespecttoamountstreatedasordinarydividendincome.Corporateparticipantsareurgedtoconsulttheirowntaxadvisorsregardingtheireligibilityforandtheextentofsuchdeduction.AnyportionofthedistributioninexcessofADT’scurrentandaccumulatedearningsandprofitswillfirstbetreatedasatax-freereturnofcapitaltotheextentofaU.S.Holder’sadjustedtaxbasisinitssharesofcommonstockinrespectofwhichthedistributionwasmadeandwillbeappliedagainstandreducesuchbasisonadollar-for-dollarbasis(therebyincreasingtheamountofgainanddecreasingtheamountoflossrecognizedonasubsequentdispositionofsuchsharesofcommonstock).TotheextentthatsuchdistributionexceedstheU.S.Holder’sadjustedtaxbasis,thedistributionwillbetreatedascapitalgain,whichwillbetreatedaslong-termcapitalgainifsuchU.S.Holder’sholdingperiodinitssharesofcommonstockexceedsoneyearasofthedateofthedistributionandotherwisewillbeshort-termcapitalgain.

AU.S.Holder’staxbasisforsharesofcommonstockreceivedpursuanttothePlanwillequalthefairmarketvalueofthesharesofcommonstockonthedividendpaymentdate.AU.S.Holder’sholdingperiodforthesharesofcommonstockwillbeginonthedayafterthedividendpaymentdate.

AU.S.HolderwillnotrealizeanytaxableincomeuponthereceiptofcertificatesforwholesharesofcommonstockthatwerecreditedtotheU.S.Holder’saccountuponwithdrawalfromorterminationofthePlan.AU.S.HoldergenerallywillrecognizegainorlossuponthesaleorexchangeofsharesofcommonstockanduponreceiptofcashpaymentsforfractionalsharescreditedtotheiraccountsuponwithdrawalfromorterminationofthePlan.Theamountofsuchgainorlosswillbeequaltothedifference(ifany)between(i)theamountrealizedforthesharesofcommonstockorfractionalshareand(ii)theU.S.Holder’sadjustedtaxbasisinthesharesofcommonstock.Suchgainorlosswillbecapitalgainorlossandwillbelong-termcapitalgainorlossiftheU.S.Holder’sholdingperiodforthesharesofcommonstockismorethanoneyearatthetimeofthesaleorexchange.Capitalgainsofnon-corporatetaxpayersonassetsheldformorethanoneyeararegenerallysubjecttopreferentialrates.Thedeductibilityofcapitallossesissubjecttolimitations.ThePlanassumesthateachparticipantwillusethefirst-in,first-out(FIFO)methodwhendeterminingthetaxbasisofanysharesofcommonstocksold.ParticipantsmaydesignatetheirpreferenceforadifferentmethodofdeterminingthetaxbasisofsharesofcommonstockbyidentifyingthispreferenceinwritingtotheAdministrator.EachU.S.HoldershouldconsultitsowntaxadvisorwithrespecttothetaxtreatmentofthereceiptofcertificatesandcashinlieuoffractionalsharesuponwithdrawalfromorterminationofthePlan.

Additional Tax on Passive Income

U.S.Holdersthatareindividuals,estatesortrustsandwhoseincomeexceedscertainthresholdsgenerallywillbesubjecttoa3.8%taxontheir“netinvestmentincome”,whichincludes,amongotherthings,dividendson,andcapitalgainsfromthesaleorothertaxabledispositionof,thesharesofcommonstock,subjecttocertainlimitationsandexceptions.

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U.S. Information Reporting and Backup Withholding

Undersomecircumstances,aU.S.HoldermaybesubjecttoU.S.informationreportingandbackupwithholdingtaxondistributionspaidonsharesofcommonstockorfromthedispositionofsharesofcommonstock.Informationreportingandbackupwithholdingwillnotapply,however,toaU.S.Holderthatisacorporationorisotherwiseexemptfrominformationreportingandbackupwithholdingand,whenrequired,demonstratesthisfact.BackupwithholdingalsowillnotapplytoaU.S.HolderthatfurnishesacorrecttaxpayeridentificationnumberandcertifiesonaFormW-9orsuccessorform,underpenaltyofperjury,thatitisnotsubjecttobackupwithholding,andotherwisecomplieswithapplicablerequirementsofthebackupwithholdingrules.AU.S.HolderthatfailstoprovidethecorrecttaxpayeridentificationnumberonFormW-9orsuccessorformmaybesubjecttopenaltiesimposedbytheIRS.Backupwithholding,currentlyata24%rate,isnotanadditionaltax,andanyamountwithheldundertheseruleswillbeallowedasarefundorcreditagainstaU.S.Holder’sU.S.federalincometaxliabilityiftherequiredinformationistimelyfurnishedtotheIRS.

U.S.Holdersareurgedtoconsulttheirtaxadvisorsregardingtheirreportingrequirements.

Non-U.S. Holders

Amount Includible in Income

ForU.S.federalincometaxpurposes,aNon-U.S.Holderwillbetreatedasreceivingadistributioninanamountequaltothesumof(i)thefairmarketvalueofsharesofcommonstockacquiredpursuanttothePlan(withoutreductionforanydiscount,ifany)and(ii)anytaxeswithheldwithrespecttothedistribution.Forthesepurposes,weintendtodeterminethe“fairmarketvalue”asdescribedaboveunder“—U.S.Holders—AmountIncludibleinIncome.”ThedistributionwillbetreatedasdividendincometoaNon-U.S.HoldertotheextentsuchdistributionismadeoutofthecurrentoraccumulatedearningsandprofitsofADTasdeterminedunderU.S.federalincometaxprinciples.Exceptasdescribedbelowunder“—Non-U.S.Holders—U.S.TradeorBusinessIncome,”Non-U.S.HoldersgenerallywillbesubjecttoU.S.federalwithholdingtaxata30%rate,oratareducedrateprescribedbyanapplicableincometaxtreaty,onanydividendsreceivedinrespectoftheirsharesofcommonstock.

AnyportionofthedistributioninexcessofADT’scurrentandaccumulatedearningsandprofitswillfirstbetreatedasatax-freereturnofcapitaltotheextentofaNon-U.S.Holder’sadjustedtaxbasisinitssharesofcommonstockinrespectofwhichsuchdistributionwasmadeandwillbeappliedagainstandreducesuchbasisonadollar-for-dollarbasis.TotheextentthatsuchdistributionexceedstheNon-U.S.Holder’sadjustedtaxbasis,thedistributionwillbetreatedascapitalgain.However,becauseADTgenerallycannotdetermineatthetimeitmakesadistributionwhetherornotthedistributionwillexceeditscurrentandaccumulatedearningsandprofits,ADTnormallywillwithholdtaxontheentireamountofanydistributionatthesamerateasADTwouldwithholdonadividend.IfitislaterdeterminedthatadistributioninfactexceededADT’scurrentandaccumulatedearningsandprofits,aNon-U.S.HolderwouldbeentitledtoarefundfromtheIRSforthewithholdingtaxontheportionofthedistributionthatexceededADT’scurrentandaccumulatedearningsandprofits.

InordertoobtainareducedrateofU.S.federalwithholdingtaxunderanapplicableincometaxtreaty,aNon-U.S.HolderwillberequiredtoprovideaproperlyexecutedapplicableIRSFormW-8(orsuccessorform)certifyingsuchNon-U.S.Holder’sentitlementtobenefitsundertheapplicabletreaty.IfaNon-U.S.HolderiseligibleforareducedrateofU.S.federalwithholdingtaxunderanincometaxtreaty,suchholdermayobtainarefundorcreditofanyexcessamountswithheldbyfilinganappropriateclaimforarefundwiththeIRS.Non-U.S.Holdersareurgedtoconsulttheirowntaxadvisorsregardingtheirpossibleentitlementtobenefitsunderanincometaxtreaty.

ANon-U.S.HolderwillnotrealizeanytaxableincomeforU.S.federalincometaxpurposesuponthereceiptofcertificatesforwholesharesofcommonstockthatwerecreditedtotheNon-U.S.Holder’saccount

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uponwithdrawalfromorterminationofthePlan.Exceptasdescribedbelowunder“—Non-U.S.Holders—U.S.TradeorBusinessIncome,”aNon-U.S.HoldergenerallywillnotbesubjecttoU.S.federalincomeorwithholdingtaxinrespectofanygainonasale,exchangeorotherdispositionofsharesofcommonstockunless:(i)thegainisU.S.tradeorbusinessincome;(ii)suchNon-U.S.HolderisanindividualwhoispresentintheUnitedStatesfor183ormoredaysinthetaxableyearofthedispositionandcertainotherconditionsaremet;or(iii)certainotherconditionsapply.EachNon-U.S.Holderisurgedtoconsultitsowntaxadvisorwithrespecttothetaxconsequencestoitofthedispositionofitssharesofcommonstock.

U.S. Trade or Business Income

Ifdividendincomeorgainonthesale,exchangeorothertaxabledispositionofsharesofcommonstockiseffectivelyconnectedwithaNon-U.S.Holder’sconductofatradeorbusinessintheUnitedStates(and,ifrequiredbyanapplicableincometaxtreaty,isattributabletoaU.S.permanentestablishmentorfixedbasemaintainedbytheholder),suchNon-U.S.HolderwillgenerallybetaxedinthesamemannerasaU.S.Holder(see“—U.S.Holders—AmountIncludibleinIncome”above).CorporateNon-U.S.Holdersmayalsobesubjecttoanadditional“branchprofitstax”ata30%rate(oratalowerrateprescribedbyanapplicableincometaxtreaty)withrespecttotheirU.S.tradeorbusinessincome.

U.S. Information Reporting, Backup Withholding and FATCA

Paymentsofdividendsonsharesofcommonstockwillnotbesubjecttobackupwithholding,providedtheapplicablewithholdingagentdoesnothaveactualknowledgeorreasontoknowthattheholderisaUnitedStatespersonandtheholdereithercertifiesitsnon-U.S.status,suchasbyfurnishingavalidapplicableIRSFormW-8(orotherapplicablesuccessorform)orotherwiseestablishesanexemption.However,informationreturnsarerequiredtobefiledwiththeIRSinconnectionwithanydividendsonsharesofcommonstockpaidtoaNon-U.S.Holder,regardlessofwhetheranytaxwasactuallywithheld.

Inaddition,proceedsofthesaleorothertaxabledispositionofsharesofcommonstockwithintheUnitedStatesorconductedthroughcertainU.S.-relatedbrokersgenerallywillnotbesubjecttobackupwithholdingorinformationreporting,iftheapplicablewithholdingagentreceivesthecertificationdescribedaboveanddoesnothaveactualknowledgeorreasontoknowthatsuchholderisaUnitedStatesperson,ortheholderotherwiseestablishesanexemption.Proceedsofadispositionofsharesofcommonstockconductedthroughanon-U.S.officeofanon-U.S.brokergenerallywillnotbesubjecttobackupwithholdingorinformationreporting.

AdditionallypursuanttotheForeignAccountTaxComplianceAct(“FATCA”),foreignfinancialinstitutions(whichincludemostforeignhedgefunds,privateequityfunds,mutualfunds,securitizationvehiclesandanyotherinvestmentvehicles)andcertainotherforeignentitiesmustcomplywithinformationreportingruleswithrespecttotheirU.S.accountholdersandinvestorsorconfrontawithholdingtaxonU.S.sourcepaymentsmadetothem(whetherreceivedasabeneficialownerorasanintermediaryforanotherparty).Morespecifically,aforeignfinancialinstitutionorotherforeignentitythatdoesnotcomplywiththeFATCAreportingrequirementswillgenerallybesubjecttoa30%withholdingtaxwithrespecttoany“withholdablepayment.”Forthispurpose,withholdablepaymentsincludegenerallyU.S.-sourcepaymentsotherwisesubjecttononresidentwithholdingtax(e.g.,U.S.-sourcedividends)andalsoincludetheentiregrossproceedsfromthesaleorotherdispositionofanyequityinstrumentsofU.S.issuers.TheU.S.DepartmentoftheTreasuryrecentlyreleasedproposedregulationswhich,iffinalizedintheirpresentform,wouldeliminatetheU.S.federalwithholdingtaxapplicabletothegrossproceedsofasaleordispositionofequity.Initspreambletotheproposedregulations,theU.S.Treasurystatedthattaxpayersmaygenerallyrelyontheproposedregulationsuntilfinalregulationsareissued.

CopiesofinformationreturnsthatarefiledwiththeIRSmayalsobemadeavailableundertheprovisionsofanapplicabletreatyoragreementtothetaxauthoritiesofthecountryinwhichtheNon-U.S.Holderresidesorisestablished.AnintergovernmentalagreementbetweentheUnitedStatesandanapplicableforeigncountrymay

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modifytherequirementsdescribedabove.Undercertaincircumstances,aNon-U.S.Holdermaybeeligibleforrefundsorcreditsofthewithholdingtaxesdescribedabove,andaNon-U.S.HoldermightberequiredtofileaU.S.federalincometaxreturntoclaimsuchrefundsorcredits.

Non-U.S.Holdersareurgedtoconsulttheirowntaxadvisorsregardingthepossibleimplicationsofinformationreporting,backwithholdingandFATCAwithrespecttotheirparticipationinthePlan.

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PLAN OF DISTRIBUTION

Subjecttothediscussionbelow,wewilldistributenewlyissuedsharesofcommonstocksoldunderthePlan.YouwillpaynoservicefeesorbrokeragetradingfeesforthesharesofcommonstockyouwillacquirepursuanttothePlan.WewillpayallbrokeragetradingfeesorotherchargesonsharesofcommonstockpurchasedthroughthePlan.However,ifyouareparticipatinginthePlanthroughyourbroker,youmaybechargedafeebyyourbrokerforparticipatinginthePlanonyourbehalf.Additionally,ifyourequestthatyoursharesofcommonstockheldbytheAdministratorbesold,youwillreceivetheproceedslessaservicefeeof$15.00andanybrokeragetradingfees,whicharecurrentlysetat$0.12pershareofcommonstock.OursharesofcommonstockarecurrentlylistedontheNYSE.

PersonswhoacquiresharesofcommonstockthroughthePlanandresellthemshortlyafteracquiringthem,includingcoverageofshortpositions,undercertaincircumstances,maybeparticipatinginadistributionofsecuritiesthatwouldrequirecompliancewithRegulationMundertheExchangeAct,andmaybeconsideredtobeunderwriterswithinthemeaningoftheSecuritiesActof1933,asamended.Wewillnotextendtoanysuchpersonanyrightsorprivilegesotherthanthosetowhichhe,sheoritwouldbeentitledasaparticipant,norwillweenterintoanyagreementwithanysuchpersonregardingtheresaleordistributionbyanysuchpersonofthesharesofcommonstock.

Wehavenoarrangementsorunderstandings,formalorinformal,withanypersonrelatingtothesaleofoursharesofcommonstocktobereceivedunderthePlan.Wereservetherighttomodify,suspendorterminateparticipationinthePlanbyotherwiseeligiblepersonstoeliminatepracticesthatareinconsistentwiththepurposesofthePlan.

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LEGAL MATTERS

ThevalidityofthesharesofferedbythisprospectuswillbepasseduponforusbyPaul,Weiss,Rifkind,Wharton&GarrisonLLP,NewYork,NewYork.

EXPERTS

TheconsolidatedfinancialstatementsofADTInc.andsubsidiariesincorporatedinthisprospectusbyreferencetoADTInc.’sAnnualReportonForm10-KforthefiscalyearendedDecember31,2018havebeensoincorporatedinrelianceonthereportofPricewaterhouseCoopersLLP,anindependentregisteredpublicaccountingfirm,givenontheauthorityofsaidfirmasexpertsinauditingandaccounting.

TheconsolidatedfinancialstatementsofTheADTCorporationasofSeptember25,2015andSeptember26,2014,andforeachofthethreeyearsintheperiodendedSeptember25,2015,incorporatedbyreferenceinthisprospectus,havebeenauditedbyDeloitte&ToucheLLP,anindependentregisteredpublicaccountingfirm,asstatedintheirreportincorporatedhereinbyreference.Suchfinancialstatementshavebeensoincludedinrelianceuponthereportofsuchfirmgivenupontheirauthorityasexpertsinaccountingandauditing.

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18,750,000 Shares

ADT Inc.

Common Stock

PROSPECTUS

March 22, 2019

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PART IIINFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

SetforthbelowisatableoftheregistrationfeefortheSECandestimatesofallotherexpensestobepaidbytheregistrantinconnectionwiththeissuanceanddistributionofthesecuritiesdescribedintheregistrationstatement:

SECregistrationfee $ 14,458Stockexchangelistingfee 1,500Printingexpenses 0Legalfeesandexpenses 0Accountingfeesandexpenses 100,000Miscellaneous 5,000

Total $ 120,958

Item 15. Indemnification of Directors and Officers.

Section145oftheDelawareGeneralCorporationLaw(the“DGCL”)providesthatacorporationmayindemnifydirectorsandofficersaswellasotheremployeesandindividualsagainstexpenses(includingattorneys’fees),judgments,finesandamountspaidinsettlementactuallyandreasonablyincurredbysuchpersoninconnectionwithanythreatened,pendingorcompletedactions,suitsorproceedingsinwhichsuchpersonismadeapartybyreasonofsuchpersonbeingorhavingbeenadirector,officer,employeeoragenttotheRegistrant.TheDGCLprovidesthatSection145isnotexclusiveofotherrightstowhichthoseseekingindemnificationmaybeentitledunderanybylaw,agreement,voteofstockholdersordisinteresteddirectorsorotherwise.TheCompany’samendedandrestatedbylawsprovideforindemnificationbytheregistrantofitsdirectors,officers,andemployeestothefullestextentpermittedbytheDGCL.

Section102(b)(7)oftheDelawareGeneralCorporationLawpermitsacorporationtoprovideinitscertificateofincorporationthatadirectorofthecorporationshallnotbepersonallyliabletothecorporationoritsstockholdersformonetarydamagesforbreachoffiduciarydutyasadirector,exceptforliability(i)foranybreachofthedirector’sdutyofloyaltytothecorporationoritsstockholders,(ii)foractsoromissionsnotingoodfaithorwhichinvolveintentionalmisconductoraknowingviolationoflaw,(iii)forunlawfulpaymentsofdividendsorunlawfulstockrepurchases,redemptionsorotherdistributions,or(iv)foranytransactionfromwhichthedirectorderivedanimproperpersonalbenefit.TheCompany’samendedandrestatedcertificateofincorporationprovidesforsuchlimitationofliability.

TheCompanymaintainsstandardpoliciesofinsuranceunderwhichcoverageisprovided(a)toitsdirectorsandofficersagainstlossrisingfromclaimsmadebyreasonofbreachofdutyorotherwrongfulact,and(b)totheCompanywithrespecttopaymentswhichmaybemadebytheCompanytosuchofficersanddirectorspursuanttotheaboveindemnificationprovisionorotherwiseasamatteroflaw.

ReferenceismadetoItem17forourundertakingswithrespecttoindemnificationforliabilitiesarisingundertheSecuritiesAct.

Wehaveenteredintocustomaryindemnificationagreementswithourexecutiveofficersanddirectorsthatprovidethem,ingeneral,withcustomaryindemnificationinconnectionwiththeirservicetousoronourbehalf.

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Item 16. Exhibits.

(a)Exhibits

TheexhibitsrequiredtobefiledpursuanttotherequirementsofItem601ofRegulationS-KaresetforthintheExhibitIndexaccompanyingthisRegistrationStatementonFormS-3andareincorporatedhereinbyreference.

Item 17. Undertakings

(a)Theundersignedregistrantherebyundertakes:

(1)Tofile,duringanyperiodinwhichoffersorsalesarebeingmade,apost-effectiveamendmenttothisregistrationstatement:

(i)ToincludeanyprospectusrequiredbySection10(a)(3)oftheSecuritiesActof1933,asamended,(the“SecuritiesAct”);

(ii)Toreflectintheprospectusanyfactsoreventsarisingaftertheeffectivedateoftheregistrationstatement(orthemostrecentpost-effectiveamendmentthereof)which,individuallyorintheaggregate,representafundamentalchangeintheinformationsetforthintheregistrationstatement.Notwithstandingtheforegoing,anyincreaseordecreaseinvolumeofsecuritiesoffered(ifthetotaldollarvalueofsecuritiesofferedwouldnotexceedthatwhichwasregistered)andanydeviationfromtheloworhighendoftheestimatedmaximumofferingrangemaybereflectedintheformofprospectusfiledwiththeSECpursuanttoRule424(b)if,intheaggregate,thechangesinvolumeandpricerepresentnomorethana20%changeinthemaximumaggregateofferingpricesetforthinthe“CalculationofRegistrationFee”tableintheeffectiveregistrationstatement;and

(iii)Toincludeanymaterialinformationwithrespecttotheplanofdistributionnotpreviouslydisclosedintheregistrationstatementoranymaterialchangetosuchinformationintheregistrationstatement;

provided,however,thatparagraphs(1)(i),(1)(ii)and(1)(iii)donotapplyiftheinformationrequiredtobeincludedinapost-effectiveamendmentbythoseparagraphsiscontainedinreportsfiledwithorfurnishedtotheSECbyaregistrantpursuanttoSection13orSection15(d)oftheExchangeActthatareincorporatedbyreferenceintheregistrationstatement,oriscontainedinaformofprospectusfiledpursuanttoRule424(b)thatispartoftheregistrationstatement.

(2)That,forthepurposeofdetermininganyliabilityundertheSecuritiesAct,eachsuchpost-effectiveamendmentshallbedeemedtobeanewregistrationstatementrelatingtothesecuritiesofferedtherein,andtheofferingofsuchsecuritiesatthattimeshallbedeemedtobetheinitialbonafideofferingthereof.

(3)Toremovefromregistrationbymeansofapost-effectiveamendmentanyofthesecuritiesbeingregisteredwhichremainunsoldattheterminationoftheoffering.

(4)That,forthepurposeofdeterminingliabilityundertheSecuritiesActtoanypurchaser:

(i)EachprospectusfiledbyaregistrantpursuanttoRule424(b)(3)shallbedeemedtobepartoftheregistrationstatementasofthedatethefiledprospectuswasdeemedpartofandincludedintheregistrationstatement;and

(ii)EachprospectusrequiredtobefiledpursuanttoRule424(b)(2),(b)(5),or(b)(7)aspartofaregistrationstatementinrelianceonRule430BrelatingtoanofferingmadepursuanttoRule415(a)(1)(i),(vii)or(x)forthepurposeofprovidingtheinformationrequiredbySection10(a)oftheSecuritiesActshallbedeemedtobepartofandincludedintheregistrationstatementasoftheearlierofthedatesuchformofprospectusisfirstusedaftereffectivenessorthedateofthefirstcontractofsaleofsecuritiesintheofferingdescribedintheprospectus.AsprovidedinRule430B,forliabilitypurposesoftheissuerandanypersonthatisatthatdateanunderwriter,suchdateshallbedeemedto

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beaneweffectivedateoftheregistrationstatementrelatingtothesecuritiesintheregistrationstatementtowhichthatprospectusrelates,andtheofferingofsuchsecuritiesatthattimeshallbedeemedtobetheinitialbonafideofferingthereof.Provided,however,thatnostatementmadeinaregistrationstatementorprospectusthatispartoftheregistrationstatementormadeinadocumentincorporatedordeemedincorporatedbyreferenceintotheregistrationstatementorprospectusthatispartoftheregistrationstatementwill,astoapurchaserwithatimeofcontractofsalepriortosucheffectivedate,supersedeormodifyanystatementthatwasmadeintheregistrationstatementorprospectusthatwaspartoftheregistrationstatementormadeinanysuchdocumentimmediatelypriortosucheffectivedate.

(5)That,forthepurposeofdeterminingliabilityoftheregistrantundertheSecuritiesActtoanypurchaserintheinitialdistributionofthesecurities,theundersignedregistrantundertakesthatinaprimaryofferingofsecuritiesoftheundersignedregistrantpursuanttothisregistrationstatement,regardlessoftheunderwritingmethodusedtosellthesecuritiestothepurchaser,ifthesecuritiesareofferedorsoldtosuchpurchaserbymeansofanyofthefollowingcommunications,theundersignedregistrantwillbeasellertothepurchaserandwillbeconsideredtoofferorsellsuchsecuritiestosuchpurchaser:

(i)AnypreliminaryprospectusorprospectusoftheundersignedregistrantrelatingtotheofferingrequiredtobefiledpursuanttoRule424;

(ii)Anyfreewritingprospectusrelatingtotheofferingpreparedbyoronbehalfoftheundersignedregistrantorusedorreferredtobytheundersignedregistrant;

(iii)Theportionofanyotherfreewritingprospectusrelatingtotheofferingcontainingmaterialinformationabouttheundersignedregistrantoritssecuritiesprovidedbyoronbehalfoftheundersignedregistrant;and

(iv)Anyothercommunicationthatisanofferintheofferingmadebytheundersignedregistranttothepurchaser.

(b)Theundersignedregistrantherebyfurtherundertakesthat,forpurposesofdetermininganyliabilityundertheSecuritiesAct,eachfilingofaregistrant’sannualreportpursuanttoSection13(a)orSection15(d)oftheExchangeAct(and,whereapplicable,eachfilingofanemployeebenefitplan’sannualreportpursuanttoSection15(d)oftheExchangeAct)thatisincorporatedbyreferenceintheregistrationstatementshallbedeemedtobeanewregistrationstatementrelatingtothesecuritiesofferedtherein,andtheofferingofsuchsecuritiesatthattimeshallbedeemedtobetheinitialbonafideofferingthereof.

(c)Theundersignedregistrantherebyundertakestodeliverorcausetobedeliveredwiththeprospectus,toeachpersontowhomtheprospectusissentorgiven,thelatestannualreporttosecurityholdersthatisincorporatedbyreferenceintheprospectusandfurnishedpursuanttoandmeetingtherequirementsofRule14a-3orRule14c-3undertheSecuritiesExchangeActof1934;and,whereinterimfinancialinformationrequiredtobepresentedbyArticle3ofRegulationS-Xarenotsetforthintheprospectus,todeliver,orcausetobedeliveredtoeachpersontowhomtheprospectusissentorgiven,thelatestquarterlyreportthatisspecificallyincorporatedbyreferenceintheprospectustoprovidesuchinterimfinancialinformation.

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EXHIBIT INDEX5.1 OpinionofPaul,Weiss,Rifkind,Wharton&GarrisonLLPastolegalityofthecommonstock.

23.1 ConsentofPricewaterhouseCoopersLLP,independentregisteredpublicaccountingfirm.

23.2 ConsentofDeloitte&ToucheLLP,independentregisteredcertifiedpublicaccountingfirm.

23.3 ConsentofPaul,Weiss,Rifkind,Wharton&GarrisonLLP(includedinExhibit5.1tothisRegistrationStatement).

24.1 PowerofAttorney(includedonsignaturepagesofthisPartII).

99.1 DividendReinvestmentPlanEnrollmentForm.

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SIGNATURES

PursuanttotherequirementsoftheSecuritiesActof1933,theregistranthasdulycausedthisRegistrationStatementtobesignedonitsbehalfbytheundersigned,thereuntodulyauthorized,inBocaRaton,Floridaonthe22dayofMarch,2019.

ADT Inc.

By:/s/DavidW.SmailDavidW.Smail

ExecutiveVicePresident,ChiefLegalOfficerandSecretary

POWER OF ATTORNEY

KNOWALLPERSONSBYTHESEPRESENTS,thateachindividualwhosesignatureappearsbelowherebyconstitutesandappointsDavidW.Smail,hisorhertrueandlawfulagent,proxyandattorney-in-fact,withfullpowerofsubstitutionandresubstitution,forhimorherandinhisorhername,placeandstead,inanyandallcapacities,to(i)acton,signandfilewiththeSecuritiesandExchangeCommissionanyandallamendments(includingpost-effectiveamendments)tothisregistrationstatementtogetherwithallschedulesandexhibitstheretoandanysubsequentregistrationstatementfiledpursuanttoRule462(b)undertheSecuritiesActof1933,asamended,togetherwithallschedulesandexhibitsthereto,(ii)acton,signandfilesuchcertificates,instruments,agreementsandotherdocumentsasmaybenecessaryorappropriateinconnectiontherewith,(iii)actonandfileanysupplementtoanyprospectusincludedinthisregistrationstatementoranysuchamendmentoranysubsequentregistrationstatementfiledpursuanttoRule462(b)undertheSecuritiesActof1933,asamended,and(iv)takeanyandallactionswhichmaybenecessaryorappropriateinconnectiontherewith,grantinguntosuchagents,proxiesandattorneys-in-fact,andeachofthem,fullpowerandauthoritytodoandperformeachandeveryactandthingnecessaryorappropriatetobedone,asfullyforallintentsandpurposesasheorshemightorcoulddoinperson,herebyapproving,ratifyingandconfirmingallthatsuchagents,proxiesandattorneys-in-factoranyoftheirsubstitutesmaylawfullydoorcausetobedonebyvirtuethereof.

PursuanttotherequirementsoftheSecuritiesActof1933,thisRegistrationStatementhasbeensignedbythefollowingpersonsinthecapacitiesandonthedatesindicated.

Signature Title Date

/s/JamesD.DeVriesJamesD.DeVries

President,ChiefExecutiveOfficerandDirector(PrincipalExecutiveOfficer)

March22,2019

/s/JeffreyLikosarJeffreyLikosar

ChiefFinancialOfficer(PrincipalFinancialandAccountingOfficer)

March22,2019

/s/MarcE.BeckerMarcE.Becker

Director

March22,2019

/s/AndrewD.AfrickAndrewD.Africk

Director

March22,2019

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Signature Title Date

/s/StephanieDrescherStephanieDrescher

Director

March22,2019

/s/TraceyGriffinTraceyGriffin

Director

March22,2019

/s/MatthewH.NordMatthewH.Nord

Director

March22,2019

/s/EricL.PressEricL.Press

Director

March22,2019

/s/ReedB.RaymanReedB.Rayman

Director

March22,2019

/s/DavidRyanDavidRyan

Director

March22,2019

/s/LeeJ.SolomonLeeJ.Solomon

Director

March22,2019

/s/TimothyJ.WhallTimothyJ.Whall

Director

March22,2019

/s/MatthewE.WinterMatthewE.Winter

Director

March22,2019

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Exhibit 5.1

212-373-3000

212-757-3990

March22,2019

ADTInc.1501YamatoRoadBocaRaton,Florida33431

RegistrationStatementonFormS-3(RegistrationNo.333-)

LadiesandGentlemen:

WehaveactedascounseltoADTInc.,aDelawarecorporation(the“Company”)inconnectionwiththeRegistrationStatementonFormS-3,asamended(the“RegistrationStatement”)oftheCompany,filedwiththeSecuritiesandExchangeCommissionpursuanttotheSecuritiesActof1933,asamended(the“Act”),andtherulesandregulationsthereunder(the“Rules”).YouhaveaskedustofurnishouropinionastothelegalityofthesecuritiesbeingregisteredundertheRegistrationStatement.TheRegistrationStatementrelatestotheregistrationundertheActofupto18,750,000shares(the“Shares”)oftheCompany’scommonstock,parvalue$0.01pershare(the“CommonStock”),thatmaybeofferedbytheCompanypursuanttotheCompany’sDividendReinvestmentPlanapprovedbytheboardofdirectorsoftheCompanyonMarch22,2019(the“Plan”).

Inconnectionwiththefurnishingofthisopinion,wehaveexaminedoriginals,orcopiescertifiedorotherwiseidentifiedtooursatisfaction,ofthefollowingdocuments(collectively,the“Documents”):

1.theRegistrationStatement;and

2.theformofthePlan.

Inaddition,wehaveexamined(i)suchcorporaterecordsoftheCompanythatwehaveconsideredappropriate,includingacopyoftheamendedandrestatedcertificateofincorporationandamendedandrestatedbylawsoftheCompany,certifiedbytheCompanyasineffectonthedateofthisletterandcopiesofresolutionsoftheboardofdirectorsoftheCompanyrelatingtotheissuanceoftheShares,certifiedbytheCompanyand(ii)suchothercertificates,agreementsanddocumentsthatwedeemedrelevantandnecessaryasabasisfortheopinionsexpressedbelow.WehavealsorelieduponthefactualmatterscontainedintherepresentationsandwarrantiesoftheCompanymadeintheDocumentsanduponcertificatesofpublicofficialsandtheofficersoftheCompany.

Inourexaminationofthedocumentsreferredtoabove,wehaveassumed,withoutindependentinvestigation,thegenuinenessofallsignatures,thelegalcapacityofallindividualswhohaveexecutedanyofthedocumentsreviewedbyus,theauthenticityofalldocumentssubmittedtousasoriginals,theconformitytotheoriginalsofalldocumentssubmittedtousascertified,photostatic,reproducedorconformedcopiesofvalidexistingagreementsorotherdocuments,theauthenticityofallthelatterdocumentsandthatthestatementsregardingmattersoffactinthecertificates,records,agreements,instrumentsanddocumentsthatwehaveexaminedareaccurateandcomplete.

Basedupontheabove,andsubjecttothestatedassumptions,exceptionsandqualifications,weareoftheopinionthattheShareshavebeendulyauthorizedbyallnecessarycorporateactiononthepartoftheCompanyand,whenissued,deliveredandpaidforascontemplatedintheRegistrationStatementandinaccordancewiththetermsofthePlan,theShareswillbevalidlyissued,fullypaidandnon-assessable.

TheopinionexpressedaboveislimitedtotheGeneralCorporationLawoftheStateofDelaware.Ouropinionisrenderedonlywithrespecttothelaws,andtherules,regulationsandordersunderthoselaws,thatarecurrentlyineffect.

WeherebyconsenttouseofthisopinionasanexhibittotheRegistrationStatementandtotheuseofournameundertheheading“LegalMatters”containedintheprospectusincludedintheRegistrationStatement.Ingivingthisconsent,wedonottherebyadmitthatwecomewithinthecategoryofpersonswhoseconsentisrequiredbytheActortheRules.

Verytrulyyours,

/s/Paul,Weiss,Rifkind,Wharton&GarrisonLLPPAUL,WEISS,RIFKIND,WHARTON&GARRISONLLP

Exhibit 23.1

CONSENTOFINDEPENDENTREGISTEREDPUBLICACCOUNTINGFIRM

WeherebyconsenttotheincorporationbyreferenceinthisRegistrationStatementonFormS-3ofADTInc.ofourreportdatedMarch11,2019relatingtothefinancialstatements,whichappearsinADTInc.’sAnnualReportonForm10-KfortheyearendedDecember31,2018.Wealsoconsenttothereferencetousundertheheading“Experts”insuchRegistrationStatement.

/s/PricewaterhouseCoopersLLP

FortLauderdale,FloridaMarch22,2019

Exhibit 23.2

CONSENTOFINDEPENDENTREGISTEREDPUBLICACCOUNTINGFIRM

WeconsenttotheincorporationbyreferenceinthisRegistrationStatementonFormS-3ofADTInc.ofourreportdatedNovember12,2015relatingtotheconsolidatedfinancialstatementsofTheADTCorporationandsubsidiariesappearingintheProspectusincludedinRegistrationStatementNo.333-222233onFormS-1ofADTInc.andtothereferencetousundertheheading“Experts”inthisProspectus,whichispartofthisRegistrationStatement.

/s/Deloitte&ToucheLLPBocaRaton,FloridaMarch22,2019

Exhibit 99.1

CO#21971

DIVIDEND REINVESTMENT PLAN FOR SHARES OF COMMON STOCK OF

ADT Inc.

ENROLLMENT APPLICATION

I (We) hereby appoint American Stock Transfer & Trust Company, LLC as my (our ) Agent under the terms and conditions of the Plan, as described in thePlan which accompanied this form, to apply cash distributions of shares of common stock, par value $0.01 of ADT Inc. as indicated below.

NO INTEREST WILL BE PAID ON THE FUNDS HELD PENDING INVESTMENT.

This form, when completed and signed, should be mailed in the blue envelope provided. Please affix postage to ensure properprocessing. If you do not have the envelope, mail your form to:

ADT Inc.C/O American Stock Transfer & Trust Company, LLCP.O. Box 922, Wall Street Station, New York, New York 10269-0560Attn: Plan Administration Department

If your name is preprinted above, it is for mailing purposes only. Please complete one of the boxes below for the exact account registration.

ACCOUNT’S REGISTRATION (NAME):

ACCOUNT NUMBER:

SIGNATURE(s) All Joint Owners Must Sign

Please enroll this account as follows: Check one box only ☒.

If you do not check any box, then FULL DISTRIBUTION REINVESTMENT will beassumed.

☐ FULL DIVIDEND REINVESTMENT Reinvest all dividends for this account.

☐ PARTIAL DIVIDEND REINVESTMENT

Reinvest dividends on____________shares of common stock held by me and on all sharesof common stock held by you as Agent and pay distributions in cash on all remainingcommon stock held by me. You must reinvest distributions on a minimum of 10% of thecommon stock in your Plan account.

☐ NO DISTRIBUTION REINVESTMENT All distributions will be paid in cash.