Toyo Tire Corporation's correction to its interim securities report, filed August 28, 2026, looked like routine paperwork. It wasn't. Buried in the amended subsequent-events note is one of the more consequential ownership changes in the tire maker's recent history: a same-day buyback and stake exit that triggers the planned end of an eight-year alliance with Mitsubishi Corporation.
Toyo Tire's board approved on August 7, 2026 a buyback of up to 32,000,000 of its own shares, equal to 20.78% of shares outstanding excluding treasury stock, for as much as ¥156.77bn. The trade executed on August 10 through ToSTNeT-3, the Tokyo Stock Exchange's off-auction venue built for large negotiated block trades. All but 150,000 of the repurchased shares are due for cancellation by September 30, 2026.
| Item | Detail |
|---|---|
| Buyback size | Up to 32,000,000 shares (20.78% of shares outstanding excluding treasury stock) |
| Buyback value cap | Up to ¥156.77bn |
| Method and date | ToSTNeT-3 off-auction trade, August 10, 2026 |
| Shares to be cancelled | All but 150,000 of the repurchased shares, by September 30, 2026 |
| Mitsubishi Corp shares tendered | 30,822,200 shares (full holding) |
| Mitsubishi voting rights, before and after | 308,222 units (20.07%) to 0 units (0%), effective August 10, 2026 |
| Alliance formed | November 1, 2018, via capital and business alliance agreement |
| Alliance termination (planned) | August 10, 2026, contingent on the repurchase going through as planned, per the filing |
The counterparty is what makes this more than a capital-efficiency exercise. Mitsubishi Corporation, Toyo Tire's major shareholder, told the company it would tender its entire holding, 30,822,200 shares, into the buyback. A separate extraordinary report filed the same day confirms the arithmetic: Mitsubishi's voting rights fell from 308,222 units, 20.07% of the total, to zero, effective August 10, 2026.
Because Mitsubishi's tendered stake would fall below the threshold set in the two companies' November 2018 capital and business alliance agreement, Toyo Tire's board resolved that the alliance would terminate once the repurchase went through as planned, with August 10, 2026 listed as the termination date. The 2018 deal, sealed through a third-party share allotment, was built around joint work in three areas: sales strength, technology strength and resource strength. Toyo Tire's filing separately credits the allotment proceeds with helping fund production-capacity increases, and says both sides now judge the original goals achieved. The company adds that the wind-down has no impact on consolidated results.
The correction pulled two more filings in its wake on August 28: an amended bond shelf registration that formally incorporates the corrected interim report as a reference document, and a confirmation certificate signed by the company's representative director and president attesting the corrected filing is accurate, with nothing further to flag. Auditor Azusa & Co. reviewed the restated interim accounts, issued an unqualified conclusion, and flagged the buyback resolution in an emphasis-of-matter note alongside a separate note acknowledging the correction to the interim financial statements.
Toyo Tire heads toward its September 30 cancellation date without the shareholder that anchored its 2018 capital alliance.