Tokio Marine Holdings (8766.T), Japan's largest property and casualty insurer by market value, is moving toward what could be its biggest acquisition ever, with Brisbane-based Suncorp Group (SUN.AX) emerging as the preferred target after months of due diligence on Australian and Canadian insurers.
The pursuit of a multibillion-dollar international takeover is part of Chief Executive Masahiro Koike's strategy to diversify operations beyond Japan's shrinking domestic market. Over the past several months, the company has reviewed a range of candidates including Suncorp and Insurance Australia Group (IAG.AX) — two of Australia's largest general insurers — as well as Canada's Intact Financial Corporation (IFC.TO).
Two people with direct knowledge of the matter said Suncorp has become the favored option, while Intact, with a market value of roughly $34 billion, was deemed too large. Suncorp and IAG carry market capitalizations of approximately $14 billion and $13 billion, respectively.
The same people cautioned that discussions remain ongoing and there is no certainty a transaction will materialize. Tokio Marine declined to comment on what it called market speculation, while Suncorp, IAG, and Intact all declined to comment.
The potential deal comes just months after Berkshire Hathaway (BRK.A) acquired a 2.5 percent stake in Tokio Marine in March, an investment that included an agreement to cooperate on large-scale international mergers and acquisitions. The arrangement is designed to let the two groups pursue sizeable takeovers together, pairing Berkshire's balance sheet with Tokio Marine's operational expertise and track record in identifying acquisition targets.
While the specifics of Berkshire's role in any Suncorp transaction remain unclear, the cooperation framework is intended to focus on insurance M&A outside Japan, preserving Tokio Marine's capital for domestic investment.
Shares of Suncorp jumped more than 7 percent in Sydney trading on Tuesday, trimming their decline over the past 12 months to roughly 10 percent. IAG climbed about 4.5 percent. Tokio Marine's stock rose more than 2 percent in Tokyo.
A Record-Setting Ambition
Since 2008, Tokio Marine has completed five major international property and casualty insurance deals worth approximately $19 billion in total, including the $7.5 billion acquisition of US-based HCC Insurance Holdings — its largest transaction to date. A Suncorp takeover would likely eclipse that figure.
The Japanese insurer has deep ties to Australia. It previously acquired Sydney-based Bond & Credit Co, a provider of insurance cover to supply chain finance firm Greensill Capital, which collapsed in 2021. Tokio Marine was Greensill's main insurer. The BCC acquisition was part of an aggressive global expansion that also included buying out IAG's 50 percent stake in the business.
Suncorp, which operates under brands including AAMI and GIO, has been viewed as a consolidation candidate since selling its banking arm to ANZ Group (ANZ.AX) in 2024, transforming itself into a pure-play general insurer focused on Australia and New Zealand. The company posted a net profit of A$1 billion ($714.2 million) for fiscal 2026, paid a special dividend, and announced a share buyback in its annual results released this month.
Long-serving Chief Executive Steve Johnston said Suncorp has invested in new IT systems, simplified its business, and struck a fresh reinsurance arrangement that will reduce earnings volatility and natural hazard risk. "This result demonstrated that a well-run insurance company can deliver for both customers and shareholders," he said.
IAG offers vehicle and rural insurance policies in Australia and New Zealand under brands including NRMA and CGU.
Japanese Capital Flows Down Under
Australia has long been a hunting ground for Japanese investors, with energy, logistics, industrial, consumer, and real estate sectors attracting high-profile takeover moves. Japanese foreign direct investment reached a record $113 billion last year across 77 completed transactions, according to a report by law firm Herbert Smith Freehills and the Australian National University, including Mitsui's $5.4 billion investment in the Rhodes Ridge iron ore joint venture.
The report noted that Australia's life insurance and financial services sectors are particularly attractive to Japanese investors due to the country's population growth and affluent consumer base. Daiichi Life and Tokio Marine have both acquired smaller Australian insurance players in the past.
For Japanese property and casualty insurers facing demographic decline at home, overseas expansion has become a critical growth lever. The Suncorp pursuit represents the first major test of the Berkshire partnership announced in March, and market attention now turns to whether Tokio Marine will formalize a bid and how the collaboration with the US conglomerate will be structured.
