Overview
- Tokyo police re-arrested 28-year-old Kentaro Yamatani on electronic-computer-use fraud allegations, and he has admitted to the charge, according to investigators.
- Police say Yamatani moved ¥5,324,100 in three transfers from a securities account he had transferred to another party into his own bank account between April 8 and 15, 2025.
- Investigators report he opened multiple bank and brokerage accounts in March–April 2025 for resale; one account opened April 7 was used the next day for repeated trades across 12 stocks that generated about ¥1,324,100 in profit.
- Authorities say several of the accounts tied to him were used for manipulative trading and received funds including stock-purchase capital and roughly ¥126 million in sale proceeds; the probe began after a tip from the Securities and Exchange Surveillance Commission.
- Separately on Feb. 20, Tokyo prosecutors re-arrested a former Mita Securities director and two company officers on insider-trading suspicions involving Toyo Securities dividend information, indicted the trio in a related Nidec–Makino takeover case, and re-arrested one suspect on additional market-manipulation allegations.