Top mergers and acquisitions in United States in November 2026
Every verified merger and acquisition involving United States in this period, ranked by disclosed value. Updated every morning.
We tracked 33 deals involving United States in November 2026, 23 of them with a disclosed value, worth $198.1bn in total. The largest was Marvell Technology, Inc.'s $115bn deal for Lumentum Holdings Inc., ahead of Kimberly-Clark and Kenvue at $48.7bn.
Top mergers and acquisitions in United States in November 2026
- 12 NovMarvell Technology, Inc. → Lumentum Holdings Inc.Marvell agrees US$115bn all-stock deal for LumentumTechnology / Semiconductors and optical networkingAgreed$115bn
- 22 NovKimberly-Clark → KenvueKimberly-Clark completes US$48.7bn takeover of KenvueConsumer / Consumer healthCompleted$48.7bn
- 32 NovBrookfield Asset Management and CPP Investments → LXP Industrial TrustBrookfield and CPP Investments complete US$5.2bn LXP take-privateReal estate / Industrial REITCompleted$5.2bn
- 42 NovGrant Thornton Advisors LLC → CBIZ, Inc.Grant Thornton completes US$5bn acquisition of CBIZFinancials / Accounting and advisoryCompleted$5bn
- 53 NovCVR Energy, Inc. → Marathon Petroleum's St. Paul Park and Mandan refineries and related marketing businessCVR Energy agrees US$4.2bn deal for two Marathon refineriesEnergy / Oil refiningAgreed$4.2bn
- 62 NovIndivior Pharmaceuticals, Inc. → Supernus Pharmaceuticals, Inc.Indivior and Supernus complete merger to form CNS drugmakerHealthcare / CNS pharmaceuticalsCompleted$3.4bn
- 72 NovSalesforce, Inc. → CrestaSalesforce agrees to buy voice-AI start-up CrestaTechnology / Contact-centre AI softwareAgreed$2.7bn
- 82 NovPublicis Groupe S.A. → LiveRamp Holdings, Inc.Publicis completes LiveRamp acquisition after FTC clearanceTechnology / Data collaboration softwareCompleted$2.6bn
- 94 NovEmpower Brands Holdings Group, LLC (Spectrum Brands and Oaktree Capital Management) → Helen of Troy LimitedSpectrum and Oaktree's Empower Brands goes public with US$1.6bn Helen of Troy bidConsumer / Household and personal care productsAnnounced$1.6bn
- 103 NovMapfre S.A. → Safety Insurance Group, Inc.Safety Insurance holders back US$1.54bn Mapfre takeoverFinancials / InsuranceAgreed$1.5bn
- 113 NovSafe Harbor Marinas → MarineMaxMarineMax secures all regulatory approvals for Safe Harbor saleConsumer / Marine retailAgreed$1.5bn
- 124 NovARRAY Technologies, Inc. → Shoals Technologies Group, Inc.ARRAY and Shoals agree US$1.32bn all-stock solar equipment mergerEnergy / Solar equipmentAgreed$1.3bn
- 134 NovIonQ → ElisityIonQ completes all-stock acquisition of ElisityTechnology / CybersecurityCompleted$1.3bn
- 144 NovThe Andersons, Inc. → Harvestone Low Carbon Partners (HLCP)The Andersons agrees US$915m deal for ethanol producer Harvestone Low Carbon PartnersEnergy / Ethanol and low-carbon fuelsAgreed$915m
- 153 NovAuthentic Brands Group → Lee business (from Kontoor Brands)Authentic Brands completes acquisition of Lee from KontoorConsumer / Apparel brandsCompleted$750m
- 162 NovSelect Water Solutions → Pilot Water SolutionsSelect Water completes US$700m Pilot Water dealEnergy / Water midstreamCompleted$700m
- 172 Novonsemi (ON Semiconductor Corporation) → Ferric, Inc.onsemi to buy AI power-chip start-up Ferric for up to US$775mTechnology / Power semiconductorsAgreed$600m
- 183 NovAmdocs Limited → EIS (EIS Group)Amdocs buys insurance software provider EIS for US$340mTechnology / Insurance softwareCompleted$340m
- 192 NovBilt → LAVABilt buys sports loyalty platform LAVA in US$300m dealTechnology / Loyalty and fan-engagement softwareAgreed$300m
- 204 NovAgilent Technologies → ProsciaAgilent completes US$240m acquisition of ProsciaHealthcare / Digital pathology softwareCompleted$240m
- 213 NovAtkinsRéalis Group Inc. → David Evans Enterprises, Inc. (remaining 30% interest)AtkinsRéalis takes full control of David Evans for US$130mIndustrials / Engineering servicesCompleted$130m
- 223 NovRockwell Medical, Inc. → Vantive's in-centre hemodialysis businessRockwell Medical to buy Vantive's hemodialysis businessHealthcare / Medical devicesAgreed$125m
- 232 NovKewaunee Scientific Corporation → Nycom, Inc.Kewaunee Scientific agrees US$55m deal for lab dealer NycomIndustrials / Laboratory equipmentAgreed$55m
- 242 NovLS Power Equity Advisors → EVgo Inc.LS Power proposes US$2-a-share take-private of EVgoEnergy / EV chargingAnnouncedUndisclosed
- 252 NovCaterpillar Inc. → John Fabick Tractor Company (Fabick Cat)Caterpillar completes purchase of Fabick Cat dealershipIndustrials / Equipment dealershipCompletedUndisclosed
- 262 NovHull Street Energy → FirstLight USAHull Street Energy completes FirstLight US hydro dealEnergy / Hydro and pumped storageCompletedUndisclosed
- 273 NovKeyBanc Capital Markets Inc. (KeyCorp) → Atlantic-Pacific Capital, Inc.KeyBanc to buy private capital adviser Atlantic-PacificFinancials / Private capital advisoryAgreedUndisclosed
- 282 NovAyrmid Ltd. → Karyopharm Therapeutics Inc.Karyopharm files for Chapter 11 with Ayrmid merger planHealthcare / BiotechAnnouncedUndisclosed
- 292 NovPlatinum Equity → Warren ValvePlatinum Equity buys Warren Valve from Allied GroupIndustrials / Flow controlCompletedUndisclosed
- 304 NovWynnchurch Capital (Double Eagle Acquisition Buyer) → Luxfer Holdings PLCLuxfer shareholders approve Wynnchurch takeoverMaterials / Advanced materials and gas cylindersAgreedUndisclosed
- 313 NovCrowdStrike Holdings, Inc. → Fiddler AICrowdStrike agrees to buy AI observability firm FiddlerTechnology / Cybersecurity and AI observabilityAgreedUndisclosed
- 324 NovTransom Capital Group → Cree LED (from Penguin Solutions)Transom Capital agrees to buy Cree LED from Penguin SolutionsTechnology / LED componentsAgreedUndisclosed
- 334 NovSignia Aerospace (backed by Arcline Investment Management) → Heads Up TechnologiesArcline-backed Signia Aerospace to buy Heads Up Technologies from JLL PartnersIndustrials / Aerospace componentsAgreedUndisclosed