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Endo Manufacturing Co., Ltd. 7841

Company
株式会社遠藤製作所Endo Manufacturing Co., Ltd.
Investors
5
Buys
4
Total Value
¥948M ($6.1M)
Avg Return
+51.41%
Last Filing
2026-05-13

Endo Manufacturing Co., Ltd. (7841) has 4 disclosed large-shareholding filings and 6 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥948M ($6.1M) in reported transaction value. The earliest filing StockDrifts holds for Endo Manufacturing Co., Ltd. is dated 2021-04-21; the most recent is 2026-05-13. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +51.41%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-05-13BUYunknown
株式会社遠藤栄松ファンデーション
strategic1.9M¥1,055+2.1%¥2.0B ($13.2M)
2026-05-13BUYunknown
遠藤 栄之助
strategic380.0K¥1,055+2.1%¥401M ($2.6M)
2026-04-17SELLMarket Buy
清原 達郎
Tatsuro Kiyohara
passive471.1K¥1,111+2.9%¥111M ($717K)
2026-04-08SELLMarket Buy
清原 達郎
Tatsuro Kiyohara
passive571.6K¥1,120+3.6%¥117M ($757K)
2023-11-01SELLunknown
タワー投資顧問株式会社
TOWER INVESTMENT MANAGEMENT Co.,Ltd
unknown0¥777-44.1%¥525M ($3.4M)
2023-10-24BUYacquisition
清原 達郎
Tatsuro Kiyohara
passive676.2K¥771+45.3%¥521M ($3.4M)
2023-10-24BUYMarket Buy
清原 達郎
Tatsuro Kiyohara
passive676.2K¥771+45.3%¥521M ($3.4M)
2023-09-01SELLMarket Buy
タワー投資顧問株式会社
TOWER INVESTMENT MANAGEMENT Co.,Ltd
passive676.2K¥758-47.8%¥3M ($18K)
2023-08-08SELLMarket Buy
タワー投資顧問株式会社
TOWER INVESTMENT MANAGEMENT Co.,Ltd
activist680.0K¥768-45.8%¥96M ($618K)
2022-10-06BUYunknown
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other26.2K¥774+44.7%¥17M ($108K)
2022-09-22BUYunknown
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other478.5K¥804+39.3%¥385M ($2.5M)
2021-05-14SELLMarket Buy
タワー投資顧問株式会社
TOWER INVESTMENT MANAGEMENT Co.,Ltd
activist804.6K¥671-66.9%¥604M ($3.9M)
2021-04-21BUYMarket Buy
タワー投資顧問株式会社
TOWER INVESTMENT MANAGEMENT Co.,Ltd
activist1.7M¥635+76.4%¥25M ($162K)

Frequently asked questions

Who has been buying Endo Manufacturing Co., Ltd. stock?
5 distinct investors have filed 4 disclosed large-shareholding filings in Endo Manufacturing Co., Ltd. (7841), most recently on 2026-05-13. 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 Endo Manufacturing Co., Ltd. have?
Endo Manufacturing Co., Ltd. has 4 buy-side and 6 sell-side disclosures on record, covering ¥948M ($6.1M) in total reported value, spanning 2021-04-21 to 2026-05-13.
Where does StockDrifts get Endo Manufacturing Co., Ltd. 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 Endo Manufacturing Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.