• Japan Post Bank will acquire 51,489,700 Matsui Securities common shares from Maruroku through an off-market bilateral transaction.
• The stake represents 19.86% of issued shares and 19.99% of voting rights.
• The bank will become Matsui Securities’ largest shareholder, with the brokerage expected to become an equity-method affiliate.
• Agreements were signed November 4, 2026; the capital and business alliance is scheduled to begin December 28, 2026.
• The partnership includes mutual customer referrals and distribution of asset management products created by the bank’s subsidiary, JPAM.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Japan Post Bank Co. Ltd. published the original content used to generate this news brief on November 04, 2026, and is solely responsible for the information contained therein.