GlobalUnited StatesUnited KingdomGermanyFranceIndiaJapanBrazil
More regions
CountriesCanadaMexicoItalySpainIrelandNetherlandsSwitzerlandAustraliaChinaSouth KoreaSingapore
RegionsAmericasLatin AmericaEuropeNordicsAsia-Pacific
Wednesday 14 October 2026
M&A NEWS
Sign inDeal tracker

Top mergers and acquisitions in United States in May 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 May 2026, 25 of them with a disclosed value, worth $122.2bn in total. The largest was GameStop Corp.'s $55.5bn deal for eBay Inc., ahead of Fertitta Entertainment, Inc. and Caesars Entertainment, Inc. at $17.6bn.

Top mergers and acquisitions in United States in May 2026

United States M&A news →
  1. 13 MayGameStop Corp. → eBay Inc.GameStop bids US$55.5bn for eBayConsumer / E-commerceAnnounced$55.5bn
  2. 228 MayFertitta Entertainment, Inc. → Caesars Entertainment, Inc.Fertitta agrees US$17.6bn deal for CaesarsConsumer / Casinos and gamingAgreed$17.6bn
  3. 331 MayBerkshire Hathaway Inc. → Taylor Morrison Home CorporationBerkshire Hathaway agrees US$8.5bn deal for Taylor MorrisonConsumer / HomebuildingCompleted$8.5bn
  4. 46 MayAMETEK, Inc. → Indicor Instrumentation (portfolio of instrumentation businesses of Indicor, LLC)AMETEK agrees US$5bn deal for Indicor instrumentation businessesIndustrials / InstrumentationCompleted$5bn
  5. 529 MayCVC Capital Partners → IFF Food Ingredients businessCVC agrees US$4.3bn carve-out of IFF's food ingredients armConsumer / Food ingredientsAgreed$4.3bn
  6. 67 MayAngelini Pharma S.p.A. → Catalyst Pharmaceuticals, Inc.Angelini Pharma agrees US$4.1bn deal for Catalyst PharmaceuticalsHealthcare / Rare disease pharmaceuticalsCompleted$4.1bn
  7. 728 MayAutodesk, Inc. → MaintainXAutodesk agrees US$3.6bn deal for MaintainXTechnology / Maintenance softwareCompleted$3.6bn
  8. 84 MayHubbell Incorporated → NSI IndustriesHubbell agrees US$3bn deal for NSI IndustriesIndustrials / Electrical productsCompleted$3bn
  9. 917 MayPublicis Groupe S.A. → LiveRamp Holdings, Inc.Publicis agrees US$2.5bn deal for LiveRampTechnology / Data collaboration softwareAgreed$2.6bn
  10. 1021 MayParker-Hannifin Corporation → CIRCOR Aerospace (CIRCOR International's Commercial and Defense Aerospace business)Parker Hannifin agrees US$2.55bn deal for CIRCOR AerospaceIndustrials / Aerospace componentsAgreed$2.6bn
  11. 113 MayUCB S.A. → Candid Therapeutics, Inc.UCB agrees deal worth up to US$2.2bn for Candid TherapeuticsHealthcare / BiotechCompleted$2bn
  12. 124 MayLattice Semiconductor Corporation → AMILattice agrees US$1.65bn deal for AMITechnology / Firmware and semiconductorsCompleted$1.7bn
  13. 136 MayWestern Midstream Partners, LP → Brazos Delaware II, LLCWestern Midstream agrees US$1.6bn deal for Brazos DelawareEnergy / MidstreamCompleted$1.6bn
  14. 1411 MayApollo Global Management → Emerald Holding, Inc. and QuestexApollo takes Emerald private in US$1.5bn events roll-upMedia / B2B eventsCompleted$1.5bn
  15. 1518 MayBoston Scientific Corporation → MiRus LLC (c.34% stake, with option on TAVR business)Boston Scientific invests US$1.5bn in MiRus with TAVR buyout optionHealthcare / Medical devicesCompleted$1.5bn
  16. 1619 MayAnalog Devices, Inc. → Empower SemiconductorAnalog Devices agrees US$1.5bn deal for Empower SemiconductorTechnology / SemiconductorsCompleted$1.5bn
  17. 176 MayCarlyle (Global Credit) and Diversified Energy → Camino Natural Resources' Anadarko Basin assetsCarlyle and Diversified agree US$1.2bn Camino asset dealEnergy / Oil and gas productionCompleted$1.2bn
  18. 181 MayArchiMed → Esperion Therapeutics, Inc.ArchiMed agrees up to US$1.1bn take-private of EsperionHealthcare / PharmaceuticalsCompleted$1bn
  19. 197 MayRoche Holding AG → PathAI, Inc.Roche agrees deal worth up to US$1.05bn for PathAIHealthcare / Digital pathologyAgreed$750m
  20. 2021 MayAuthentic Brands Group → Lee business (from Kontoor Brands)Authentic Brands agrees deal for Lee jeans worth up to US$1bnConsumer / Apparel brandsAgreed$750m
  21. 2120 MayMedtronic plc → SPR Therapeutics, Inc.Medtronic agrees US$650m deal for SPR TherapeuticsHealthcare / Medical devicesCompleted$650m
  22. 2227 MayDigitalBridge Group, Inc. → ArcLight Capital Partners, LLCDigitalBridge agrees up to US$1.05bn deal for ArcLightFinancials / Asset managementAgreed$650m
  23. 236 MayKnox Lane → Cross Country Healthcare, Inc.Knox Lane takes Cross Country Healthcare private for US$437mHealthcare / StaffingCompleted$437m
  24. 246 MayBayer AG → Perfuse Therapeutics, Inc.Bayer agrees deal worth up to US$2.45bn for Perfuse TherapeuticsHealthcare / BiotechCompleted$300m
  25. 2527 MayAdvaya Capital (Flix Buyer Inc.) → Comscore Movies and Hollywood SoftwareAdvaya buys Comscore's movie data unit for US$70mMedia / Box office dataCompleted$70m
  26. 2611 MayStonepeak → BMO Transportation Finance and Vendor FinanceStonepeak buys BMO's C$14.5bn truck finance armFinancials / Equipment financeAgreedUndisclosed
  27. 2712 MayApollo Global Management → Noble Environmental, Inc. (majority stake)Apollo takes majority stake in Noble EnvironmentalIndustrials / Waste managementCompletedUndisclosed
  28. 2812 MayGoldman Sachs Alternatives (private equity) → FGI Worldwide LLCGoldman Sachs Alternatives buys commercial lender FGIFinancials / Commercial financeCompletedUndisclosed
  29. 2918 MayNextEra Energy, Inc. → Dominion Energy, Inc.NextEra and Dominion agree all-stock utility mergerEnergy / Electric utilitiesAgreedUndisclosed
  30. 3019 MayHull Street Energy → FirstLight USAHull Street Energy buys FirstLight's US hydro fleet from PSPEnergy / Hydro and pumped storageAgreedUndisclosed
  31. 3121 MayEquity Residential (now Vivmark Residential) → AvalonBay Communities, Inc.Equity Residential and AvalonBay agree apartment REIT mergerReal estate / Residential REITsCompletedUndisclosed
  32. 3226 MayEli Lilly and Company → Curevo, Inc.Lilly agrees deal worth up to US$1.5bn for shingles vaccine maker CurevoHealthcare / VaccinesAgreedUndisclosed
  33. 3328 MayNextpower Inc. → Prevalon EnergyNextpower agrees deal for Prevalon Energy worth up to US$365mEnergy / Battery storageCompletedUndisclosed