Stock Markets March 23, 2026

Tokio Marine forges strategic tie-up with Berkshire Hathaway via initial 2.49% stake sale

Japanese insurer to sell treasury shares to Berkshire’s National Indemnity and deploy proceeds for shareholder buybacks

By Leila Farooq
Tokio Marine forges strategic tie-up with Berkshire Hathaway via initial 2.49% stake sale

Tokio Marine Holdings said it will enter a strategic partnership with Berkshire Hathaway by initially transferring a 2.49% holding through a third-party allotment of treasury shares to Berkshire’s core reinsurance unit, National Indemnity. Proceeds of up to 287.4 billion yen will be used to repurchase Tokio Marine shares to avoid dilution, and any further purchases by National Indemnity are expected to be made on the open market, subject to a board-approved cap on direct accumulation.

Key Points

  • Tokio Marine will sell an initial 2.49% stake to Berkshire Hathaway via a third-party allotment of treasury shares to National Indemnity.
  • Proceeds of up to 287.4 billion yen (about $1.80 billion) will be used by Tokio Marine to repurchase its own shares to prevent dilution of existing shareholders.
  • Any further accumulation of Tokio Marine shares by National Indemnity is expected to be conducted mainly on the open market, with a pre-condition that it will not buy over 9.9% of outstanding shares without Tokio Marine board approval.

TOKYO, March 23 - Tokio Marine Holdings Inc announced on Monday that it will establish a strategic partnership with Warren Buffett’s Berkshire Hathaway, beginning with an initial sale of 2.49% of its shares. The transfer will take place through a third-party allotment of treasury shares to Berkshire’s principal reinsurance business, National Indemnity.

Tokio Marine said it expects to use the funds from the allotment - up to 287.4 billion yen, equivalent to approximately $1.80 billion - to repurchase its own stock. Management framed the buyback as a measure to prevent dilution for existing shareholders following the transaction. The filing included an exchange-rate reference of $1 = 159.4100 yen.

Under the terms disclosed, after the initial allocation to National Indemnity any additional purchases of Tokio Marine shares by Berkshire are anticipated to occur primarily through the open market. Separately, National Indemnity has agreed not to acquire more than 9.9% of Tokio Marine’s outstanding shares without first obtaining approval from Tokio Marine’s board.

The company characterized the transaction as the start of a strategic relationship with Berkshire Hathaway. Tokio Marine’s statement specified the mechanics of the initial stake transfer and the intended use of proceeds, and it set out the prospective approach for any subsequent share accumulation by National Indemnity.

The deal structure centers on a third-party allotment of treasury stock for the initial stake, followed by open-market activity for potential additional purchases, constrained by the 9.9% threshold absent board approval. The insurer will channel up to 287.4 billion yen in proceeds into its share repurchase program to offset dilution that could arise from the allotment.

Details in the filing emphasize the limited scope of the initial equity transfer and the governance mechanism that Tokio Marine retains through the board approval requirement for larger accumulations by National Indemnity. The filing did not provide further commentary on timing for open-market purchases or on operational aspects of the strategic partnership beyond the equity arrangements.


Contextual note: The filing states the transaction terms and the buyback plan; it does not provide additional forecasts, timing for further purchases, or other commercial terms of the wider strategic relationship.

Risks

  • Uncertainty around the timing and scale of any open-market purchases by National Indemnity could affect Tokio Marine share supply and market dynamics - impacts the equity and financial markets sector.
  • The effectiveness of the buyback in preventing dilution depends on final execution; any deviation in repurchase size or timing could influence shareholder outcomes - relevant to corporate finance and investor relations.
  • The agreement limits direct accumulation beyond 9.9% without board approval, but future changes or approvals could alter ownership concentration and governance - relevant to governance and regulatory oversight in the insurance sector.

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