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Wednesday 14 October 2026
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Top mergers and acquisitions in Japan in May 2026

Every verified merger and acquisition involving Japan in this period, ranked by disclosed value. Updated every morning.

We tracked 11 deals involving Japan in May 2026, 7 of them with a disclosed value, worth $6.2bn in total. The largest was EQT (BPEA Private Equity Fund IX)'s $3.8bn deal for Kakaku.com, Inc., ahead of MEDIPAL HOLDINGS CORPORATION and PALTAC CORPORATION (47.6% minority) at $1.2bn.

Top mergers and acquisitions in Japan in May 2026

Japan M&A news →
  1. 112 MayEQT (BPEA Private Equity Fund IX) → Kakaku.com, Inc.EQT bids ¥594bn to take Kakaku.com private, sparking contestTechnology / Online marketplacesAnnounced$3.8bn
  2. 211 MayMEDIPAL HOLDINGS CORPORATION → PALTAC CORPORATION (47.6% minority)Medipal takes PALTAC private in ¥192bn buyoutConsumer / Wholesale distributionCompleted$1.2bn
  3. 325 MayKINDEN CORPORATION → The Kodensha Co., Ltd.Kinden wins auction for Mitsubishi Electric's KodenshaIndustrials / Electrical contractingCompleted$540m
  4. 415 MayKaga Electronics Co., Ltd. → Shinko Shoji Co., Ltd.Kaga Electronics wins control of Shinko Shoji after drawn-out bidTechnology / Electronic components distributionCompleted$290m
  5. 529 MaySamyang Corporation (via Samyang Corporation Japan) → Soda Aromatic Co., Ltd.Samyang buys Soda Aromatic from Toray and Mitsui for ¥41bnChemicals / Flavours and fragrancesCompleted$260m
  6. 615 MayCulture Convenience Club Co., Ltd. → Jimoty Inc.CCC takes classifieds site Jimoty private for about ¥14bnTechnology / Online classifiedsCompleted$90m
  7. 713 MayAkatsuki Inc. → SUNNY SIDE UP GROUP Inc.Akatsuki takes control of Sunny Side Up in IP mergerMedia / PR and entertainment IPCompleted$80m
  8. 812 MayNSK Ltd. and NTN Corporation (joint holding company) → NTN CorporationNSK and NTN agree to merge Japan's bearing makersIndustrials / BearingsAnnouncedUndisclosed
  9. 912 MayMBK Partners → ALTEMIRA Holdings Co., Ltd.MBK buys Japanese can maker Altemira from ApolloMaterials / Aluminium packagingCompletedUndisclosed
  10. 1013 MayAichi Financial Group, Inc. → San ju San Financial Group, Inc.Aichi and San ju San abandon ¥11.6tn regional bank mergerFinancials / Regional banksTerminatedUndisclosed
  11. 1128 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