Top mergers and acquisitions in May 2026
Every verified merger and acquisition in this period, ranked by disclosed value. Updated every morning.
We tracked 94 deals in May 2026, 58 of them with a disclosed value, worth $153.2bn 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 May 2026
- 13 MayGameStop Corp. → eBay Inc.GameStop bids US$55.5bn for eBayConsumer / E-commerceAnnounced$55.5bn
- 228 MayFertitta Entertainment, Inc. → Caesars Entertainment, Inc.Fertitta agrees US$17.6bn deal for CaesarsConsumer / Casinos and gamingAgreed$17.6bn
- 331 MayBerkshire Hathaway Inc. → Taylor Morrison Home CorporationBerkshire Hathaway agrees US$8.5bn deal for Taylor MorrisonConsumer / HomebuildingCompleted$8.5bn
- 45 MayVodafone Group Plc → VodafoneThree (CK Hutchison's 49% stake)Vodafone agrees £4.3bn buyout of CK Hutchison's VodafoneThree stakeTelecom / Mobile networksCompleted$5.8bn
- 56 MayAMETEK, Inc. → Indicor Instrumentation (portfolio of instrumentation businesses of Indicor, LLC)AMETEK agrees US$5bn deal for Indicor instrumentation businessesIndustrials / InstrumentationCompleted$5bn
- 629 MayCVC Capital Partners → IFF Food Ingredients businessCVC agrees US$4.3bn carve-out of IFF's food ingredients armConsumer / Food ingredientsAgreed$4.3bn
- 75 MayBullish → EquinitiBullish agrees US$4.2bn deal for transfer agent EquinitiFinancials / Shareholder servicesAgreed$4.2bn
- 87 MayAngelini Pharma S.p.A. → Catalyst Pharmaceuticals, Inc.Angelini Pharma agrees US$4.1bn deal for Catalyst PharmaceuticalsHealthcare / Rare disease pharmaceuticalsCompleted$4.1bn
- 912 MayEQT (BPEA Private Equity Fund IX) → Kakaku.com, Inc.EQT bids ¥594bn to take Kakaku.com private, sparking contestTechnology / Online marketplacesAnnounced$3.8bn
- 105 MayRegis Resources Limited → Vault Minerals LimitedRegis and Vault agree A$10.7bn gold merger, then Genesis cuts inMining / GoldTerminated$3.7bn
- 1128 MayAutodesk, Inc. → MaintainXAutodesk agrees US$3.6bn deal for MaintainXTechnology / Maintenance softwareCompleted$3.6bn
- 124 MayHubbell Incorporated → NSI IndustriesHubbell agrees US$3bn deal for NSI IndustriesIndustrials / Electrical productsCompleted$3bn
- 1313 MayBharti Airtel Limited → Airtel Africa plc (16.31% stake)Bharti Airtel swaps INR282bn of shares for bigger Airtel Africa stakeTelecom / Mobile operatorsCompleted$2.9bn
- 1417 MayPublicis Groupe S.A. → LiveRamp Holdings, Inc.Publicis agrees US$2.5bn deal for LiveRampTechnology / Data collaboration softwareAgreed$2.6bn
- 1521 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
- 1622 MayApollo Global Management (Apollo Management X) → Bodycote plcApollo walks away from £1.5bn Bodycote approachIndustrials / Heat treatment servicesTerminated$2bn
- 173 MayUCB S.A. → Candid Therapeutics, Inc.UCB agrees deal worth up to US$2.2bn for Candid TherapeuticsHealthcare / BiotechCompleted$2bn
- 183 MayMittal family (Westview Cricket) and Adar Poonawalla → Rajasthan Royals (Royals Sports Group)Mittals and Poonawalla agree US$1.65bn deal for Rajasthan RoyalsMedia / Sports franchisesIn review$1.7bn
- 194 MayLattice Semiconductor Corporation → AMILattice agrees US$1.65bn deal for AMITechnology / Firmware and semiconductorsCompleted$1.7bn
- 206 MayWestern Midstream Partners, LP → Brazos Delaware II, LLCWestern Midstream agrees US$1.6bn deal for Brazos DelawareEnergy / MidstreamCompleted$1.6bn
- 2111 MayApollo Global Management → Emerald Holding, Inc. and QuestexApollo takes Emerald private in US$1.5bn events roll-upMedia / B2B eventsCompleted$1.5bn
- 2218 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
- 2319 MayAnalog Devices, Inc. → Empower SemiconductorAnalog Devices agrees US$1.5bn deal for Empower SemiconductorTechnology / SemiconductorsCompleted$1.5bn
- 2411 MayMEDIPAL HOLDINGS CORPORATION → PALTAC CORPORATION (47.6% minority)Medipal takes PALTAC private in ¥192bn buyoutConsumer / Wholesale distributionCompleted$1.2bn
- 256 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
- 261 MayArchiMed → Esperion Therapeutics, Inc.ArchiMed agrees up to US$1.1bn take-private of EsperionHealthcare / PharmaceuticalsCompleted$1bn
- 277 MayRoche Holding AG → PathAI, Inc.Roche agrees deal worth up to US$1.05bn for PathAIHealthcare / Digital pathologyAgreed$750m
- 2821 MayAuthentic Brands Group → Lee business (from Kontoor Brands)Authentic Brands agrees deal for Lee jeans worth up to US$1bnConsumer / Apparel brandsAgreed$750m
- 2920 MayMedtronic plc → SPR Therapeutics, Inc.Medtronic agrees US$650m deal for SPR TherapeuticsHealthcare / Medical devicesCompleted$650m
- 3027 MayDigitalBridge Group, Inc. → ArcLight Capital Partners, LLCDigitalBridge agrees up to US$1.05bn deal for ArcLightFinancials / Asset managementAgreed$650m
- 315 MayMSA Safety Incorporated → Autronica Fire and SecurityMSA Safety agrees US$555m deal for Norway's AutronicaIndustrials / Fire and gas detectionCompleted$555m
- 3225 MayKINDEN CORPORATION → The Kodensha Co., Ltd.Kinden wins auction for Mitsubishi Electric's KodenshaIndustrials / Electrical contractingCompleted$540m
- 337 MayCentrica plc → Severn CCGT power station (Severn Power Limited)Centrica buys Severn gas plant for about £370mEnergy / Gas-fired power generationCompleted$500m
- 3412 MayVerdane → Telenor Connexion (50% stake)Verdane takes half of Telenor Connexion at SEK 7.5bn valueTelecom / IoT connectivityCompleted$500m
- 356 MayKnox Lane → Cross Country Healthcare, Inc.Knox Lane takes Cross Country Healthcare private for US$437mHealthcare / StaffingCompleted$437m
- 365 MayLoomis AB → Hermes Transportes Blindados S.A.Loomis agrees SEK 4bn deal for Peru's HermesIndustrials / Cash handling and secure logisticsCompleted$436m
- 3725 MayLoxam SAS → Mills Locação, Serviços e Logística S.A. (50.3% controlling stake)Loxam agrees R$1.9bn deal for control of Brazil's MillsIndustrials / Equipment rentalAgreed$380m
- 386 MayZakłady Farmaceutyczne Polpharma S.A. → Biofarm S.A.Polpharma agrees €270m takeover of Romania's BiofarmHealthcare / Generic pharmaceuticalsCompleted$320m
- 396 MayBayer AG → Perfuse Therapeutics, Inc.Bayer agrees deal worth up to US$2.45bn for Perfuse TherapeuticsHealthcare / BiotechCompleted$300m
- 4015 MayKaga Electronics Co., Ltd. → Shinko Shoji Co., Ltd.Kaga Electronics wins control of Shinko Shoji after drawn-out bidTechnology / Electronic components distributionCompleted$290m
- 4126 MayOlympus Corporation → BioProtect Ltd.Olympus pays US$270m for Israel's BioProtectHealthcare / Medical devicesCompleted$270m
- 4229 MaySamyang Corporation (via Samyang Corporation Japan) → Soda Aromatic Co., Ltd.Samyang buys Soda Aromatic from Toray and Mitsui for ¥41bnChemicals / Flavours and fragrancesCompleted$260m
- 435 MayExpro → Enhanced Drilling (Enhanced Well Technologies Group AS)Expro agrees NOK2bn deal for Enhanced DrillingEnergy / Oilfield servicesCompleted$215m
- 4414 MayAkamai Technologies, Inc. → LayerXAkamai agrees US$205m deal for browser-security firm LayerXTechnology / CybersecurityCompleted$205m
- 4518 MayOndas Holdings Inc. → Omnisys Ltd.Ondas buys Israel's Omnisys for US$200m in sharesIndustrials / Defence technologyCompleted$200m
- 4621 MayIntegrated Media Company (VantageCo Limited) → Playstack Limited (TruFin's 84.5% stake)TruFin agrees £125m sale of Balatro publisher PlaystackMedia / Video game publishingCompleted$168m
- 4711 MayCimpress plc → SAXOPRINT and viaprinto (CEWE commercial online print)Cimpress agrees to buy SAXOPRINT and viaprinto from CEWEIndustrials / Online printingCompleted$140m
- 487 MayArtivion, Inc. → Endospan Ltd.Artivion exercises option to buy Endospan after NEXUS approvalHealthcare / Medical devicesCompleted$135m
- 498 MayTenaris S.A. → Artrom Steel Tubes S.A.Tenaris agrees €86m deal for Romania's Artrom Steel TubesMaterials / Seamless steel pipesAgreed$100m
- 5029 MayHydra Investimenti S.p.A. (Volta family) → Datalogic S.p.A.Volta family's Hydra bids to take Datalogic privateTechnology / Automatic data captureCompleted$100m
- 5115 MayCulture Convenience Club Co., Ltd. → Jimoty Inc.CCC takes classifieds site Jimoty private for about ¥14bnTechnology / Online classifiedsCompleted$90m
- 5213 MayAkatsuki Inc. → SUNNY SIDE UP GROUP Inc.Akatsuki takes control of Sunny Side Up in IP mergerMedia / PR and entertainment IPCompleted$80m
- 5314 MayAMG Critical Materials N.V. (AMG Lithium B.V.) → Zinnwald Lithium plcAMG agrees £57m takeover of Zinnwald LithiumMining / LithiumCompleted$78m
- 5427 MayAdvaya Capital (Flix Buyer Inc.) → Comscore Movies and Hollywood SoftwareAdvaya buys Comscore's movie data unit for US$70mMedia / Box office dataCompleted$70m
- 5514 MayIntuitive Machines, Inc. → Goonhilly Earth Station Ltd (and COMSAT)Intuitive Machines agrees £37m deal for Goonhilly Earth StationTechnology / Satellite ground stationsCompleted$50m
- 5613 MayVossloh AG (Vossloh Digital Solutions GmbH) → Cordel Group plcVossloh agrees £29m takeover of CordelTechnology / Rail monitoring softwareCompleted$39m
- 575 MayGoMore ApS → Getaround Europe (Getaround SAS and Getaround Norway AS)GoMore buys Getaround Europe to form largest peer-to-peer car-sharing networkTechnology / Car-sharing platformsCompleted$37m
- 586 MayKPIT Technologies Limited → Cymotive Technologies LtdKPIT agrees staged buyout of Israel's CymotiveTechnology / Automotive cybersecurityAgreed$10m
- 594 MayCisco Systems, Inc. → Astrix SecurityCisco buys Astrix to police AI agents' credentialsTechnology / CybersecurityCompletedUndisclosed
- 604 MaySAP SE → Prior LabsSAP agrees to buy Freiburg AI lab Prior LabsTechnology / Artificial intelligenceCompletedUndisclosed
- 615 MayPAI Partners and Fondo Italiano d'Investimento → Mecaer Aviation Group S.p.A.PAI and Fondo Italiano agree to buy Mecaer Aviation GroupIndustrials / Aerospace componentsAgreedUndisclosed
- 626 MayCinven → Ongoing WarehouseCinven backs Swedish warehouse software maker OngoingTechnology / Logistics softwareAgreedUndisclosed
- 637 MayISS A/S → Tomagruppen ASISS agrees to buy Norway's TomagruppenIndustrials / Facility servicesCompletedUndisclosed
- 6411 MayDubai Holding (via Emirates Power Investment) → Emaar Properties PJSC (22.27% stake)Dubai Holding takes ICD's Emaar stake to become top shareholderReal estate / Property developmentCompletedUndisclosed
- 6511 MayStonepeak → BMO Transportation Finance and Vendor FinanceStonepeak buys BMO's C$14.5bn truck finance armFinancials / Equipment financeAgreedUndisclosed
- 6611 MayBlackstone → Skroutz (majority stake)Blackstone buys control of Greek marketplace Skroutz from CVCTechnology / E-commerce marketplaceAgreedUndisclosed
- 6712 MayNSK Ltd. and NTN Corporation (joint holding company) → NTN CorporationNSK and NTN agree to merge Japan's bearing makersIndustrials / BearingsAnnouncedUndisclosed
- 6812 MaySaica Group → Thimm GroupSaica agrees to buy German packaging maker ThimmMaterials / Corrugated packagingCompletedUndisclosed
- 6912 MayMBK Partners → ALTEMIRA Holdings Co., Ltd.MBK buys Japanese can maker Altemira from ApolloMaterials / Aluminium packagingCompletedUndisclosed
- 7012 MayApollo Global Management → Noble Environmental, Inc. (majority stake)Apollo takes majority stake in Noble EnvironmentalIndustrials / Waste managementCompletedUndisclosed
- 7112 MayGoldman Sachs Alternatives (private equity) → FGI Worldwide LLCGoldman Sachs Alternatives buys commercial lender FGIFinancials / Commercial financeCompletedUndisclosed
- 7213 MayEquinox Gold Corp. → Orla Mining Ltd.Equinox Gold and Orla Mining agree all-share mergerMining / GoldCompletedUndisclosed
- 7313 MayAichi Financial Group, Inc. → San ju San Financial Group, Inc.Aichi and San ju San abandon ¥11.6tn regional bank mergerFinancials / Regional banksTerminatedUndisclosed
- 7413 MayRöko AB (publ) → Fri-Jado Holding BV (93%)Röko buys Dutch rotisserie maker Fri-JadoIndustrials / Food service equipmentCompletedUndisclosed
- 7513 MayElis → Wäsche PerleElis buys Interlaken laundry Wäsche PerleIndustrials / Laundry and linen servicesCompletedUndisclosed
- 7614 MaySiemens Mobility (Siemens AG) → MERMEC Group core businessesSiemens agrees to buy core MERMEC rail businessesIndustrials / Rail signalling and diagnosticsAgreedUndisclosed
- 7714 MayBrookfield (private equity) → World Freight CompanyBrookfield buys air cargo agent WFC from EQT and PAITransport / Air cargo servicesAgreedUndisclosed
- 7818 MayNextEra Energy, Inc. → Dominion Energy, Inc.NextEra and Dominion agree all-stock utility mergerEnergy / Electric utilitiesAgreedUndisclosed
- 7918 MayCritical Metals Corp. → European Lithium LtdCritical Metals moves to absorb European LithiumMining / Lithium and rare earthsAgreedUndisclosed
- 8018 MayMehiläinen Group → Aleris GroupMehiläinen agrees to buy Aleris from TritonHealthcare / Specialist care providersAgreedUndisclosed
- 8119 MayMistral AI → Emmi AIMistral AI buys Austria's Emmi AI to push into industrial engineeringTechnology / Artificial intelligenceAgreedUndisclosed
- 8219 MayHull Street Energy → FirstLight USAHull Street Energy buys FirstLight's US hydro fleet from PSPEnergy / Hydro and pumped storageAgreedUndisclosed
- 8320 MayPQ → BASF silicates business (Düsseldorf/Holthausen)BASF agrees to sell silicates business to PQChemicals / SilicatesAgreedUndisclosed
- 8420 MayGHO Capital → CBC Group (merger with GHO Capital)GHO and CBC agree merger to form US$21bn healthcare investorFinancials / Asset managementAgreedUndisclosed
- 8521 MayEquity Residential (now Vivmark Residential) → AvalonBay Communities, Inc.Equity Residential and AvalonBay agree apartment REIT mergerReal estate / Residential REITsCompletedUndisclosed
- 8621 MaySwiss Life Deutschland (Swiss Life Holding) → TELIS UnternehmensgruppeSwiss Life agrees to buy German adviser network TELISFinancials / Financial advice distributionAgreedUndisclosed
- 8722 MayAvista Healthcare Partners and Damier Group → sanotact Group GmbHAvista and Damier buy German supplements maker sanotactConsumer / Vitamins and supplementsCompletedUndisclosed
- 8825 MayPetroliam Nasional Berhad (PETRONAS) → PRefChem (Aramco's 50% in Pengerang Refining and Pengerang Petrochemical)Petronas to take full ownership of PRefChem from AramcoEnergy / Refining and petrochemicalsAgreedUndisclosed
- 8926 MayEli Lilly and Company → Curevo, Inc.Lilly agrees deal worth up to US$1.5bn for shingles vaccine maker CurevoHealthcare / VaccinesAgreedUndisclosed
- 9026 MayEli Lilly and Company → LimmaTech Biologics AGLilly agrees up-to-US$780m deal for Swiss vaccine maker LimmaTechHealthcare / VaccinesAgreedUndisclosed
- 9126 MayStonepeak-led consortium (with Axight Capital) → Estia HealthStonepeak consortium agrees to buy Estia Health from BainHealthcare / Aged careAgreedUndisclosed
- 9228 MayNextpower Inc. → Prevalon EnergyNextpower agrees deal for Prevalon Energy worth up to US$365mEnergy / Battery storageCompletedUndisclosed
- 9328 MayPan Pacific Copper Co., Ltd. (JX Advanced Metals, Mitsui Kinzoku, Marubeni) → Mitsubishi Materials' copper concentrate purchasing and sales businessMitsubishi Materials folds copper buying into Pan Pacific CopperMaterials / Copper smeltingAgreedUndisclosed
- 9428 MayEurazeo (Planetary Boundaries Fund) → T1A Group (majority stake)Eurazeo takes majority of Danish IT refurbisher T1ATechnology / IT asset dispositionCompletedUndisclosed