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マルサンアイ株式会社 2551

Company
マルサンアイ株式会社
Investors
5
Buys
1
Total Value
—
Avg Return
—
Last Filing
2026-01-27

マルサンアイ株式会社 (2551) has 1 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 5 distinct investors. The earliest filing StockDrifts holds for マルサンアイ株式会社 is dated 2025-10-15; the most recent is 2026-01-27. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan).

Price & insider activity (12 months)

No price data available

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-01-27BUYunknown
マルサンアイ取引先持株会理事長 古川 宏
Kou Furukawa
strategic142.5K---
2026-01-07SELLunknown
マルサンアイ取引先持株会 理事長 土屋 仁朗
Kimio Tsuchiya
strategic0---
2025-10-15BUYunknown
佐藤明子
Akiko Sato
unknown41.7K---
2025-10-15BUYunknown
株式会社K&M associates
K&M associates Co., Ltd.
other305.1K---
2025-10-15BUYunknown
佐藤明子
Akiko Sato
strategic41.7K---
2025-10-15BUYunknown
佐藤公信
Kiminobu Sato
strategic180.7K---
2025-10-15BUYunknown
佐藤公信
Kiminobu Sato
strategic180.7K---

Frequently asked questions

Who has been buying マルサンアイ株式会社 stock?
5 distinct investors have filed 1 disclosed large-shareholding filings in マルサンアイ株式会社 (2551), most recently on 2026-01-27. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does マルサンアイ株式会社 have?
マルサンアイ株式会社 has 1 buy-side and 1 sell-side disclosures on record, spanning 2025-10-15 to 2026-01-27.
Where does StockDrifts get マルサンアイ株式会社 insider data?
From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
Do insider buys in Japanese stocks predict returns?
Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for マルサンアイ株式会社. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.