An individual investor named Yuji Yamamoto now controls 14.55% of Sakurajima Futo Co., Ltd. (9353), a Tokyo-listed port operator, after a run of market purchases that pushed his stake up from 13.51%. The increase was large enough, and came with a change to a related contract, to trigger Japan's large shareholding disclosure rules on July 10, 2026, with the amendment filed on July 14.
The numbers matter because Sakurajima Futo has only 1,540,000 shares outstanding in total. Yamamoto's 224,000 shares, bought for a combined ¥576.5mn, make him one of the largest single holders of a company with a genuinely thin float. The filing states the entire purchase was funded from his own resources: zero yen came from borrowings and zero from other outside sources. His listed occupation on the filing is unemployed, a self-reported field in the disclosure rather than a claim about his broader finances or background.
The buying was not one large block trade. Regulatory records show near-daily market purchases from May 11 through July 10, in lots ranging from roughly 100 to 10,100 shares, with two small disposals of 100 shares apiece early in the run. The pattern reads as steady accumulation rather than a single opportunistic trade, and this is at least his eighth amendment to the original large shareholding report, according to the document's own numbering.
The more unusual detail sits in the collateral section of the filing. Yamamoto has lent out his entire 224,000-share position: 138,800 shares to Rakuten Securities and 85,200 shares to SBI Securities under stock-lending agreements.
| Lending counterparty | Shares lent |
|---|---|
| Rakuten Securities | 138,800 |
| SBI Securities | 85,200 |
| Total shares held (all lent out) | 224,000 |
Lending shares to brokerages is a routine part of Japan's securities market, typically used to support margin trading and short-selling by other investors, and the filing does not say why Yamamoto structured the position this way. He describes the purpose of his holding simply as pure investment. What the filing does confirm is that a single individual now holds a disclosed, near-15% stake in a small-float Tokyo issuer, funded without leverage, while making his shares available to the market through two of Japan's largest online brokerages.