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StemRIM 4599

Company
株式会社ステムリムStemRIM
Investors
5
Buys
4
Total Value
¥2.5B ($16.0M)
Avg Return
-56.47%
Last Filing
2024-06-14

StemRIM (4599) has 4 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥2.5B ($16.0M) in reported transaction value. The earliest filing StockDrifts holds for StemRIM is dated 2021-08-26; the most recent is 2024-06-14. 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 -56.47%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-07-21SELLunknown
冨田 憲介
strategic4.6M¥299-16.4%¥144M ($931K)
2026-07-21SELLunknown
有限会社イー・シー・エス
strategic425.0K¥299-16.4%¥43M ($278K)
2026-07-07SELLunknown
冨田 憲介
strategic5.1M¥310+2.6%¥150M ($965K)
2026-07-07SELLunknown
有限会社イー・シー・エス
strategic569.0K¥310+2.6%¥52M ($338K)
2024-06-14BUYMarket Buy
五味 大輔
Gomi Daisuke
passive4.5M¥408-22.6%¥281M ($1.8M)
2023-10-24BUYunknown
有限会社イー・シー・エス
ECS Ltd.
strategic717.0K¥648-51.2%¥465M ($3.0M)
2023-10-24SELLunknown
冨田 憲介
Tomita Kensuke
activist5.4M¥648+51.2%¥75M ($485K)
2023-05-26SELLunknown
有限会社イー・シー・エス
ECS Ltd.
strategic717.0K¥1,007+68.6%¥31M ($197K)
2023-05-26SELLunknown
冨田 憲介
Tomita Kensuke
activist5.5M¥1,007+68.6%¥92M ($592K)
2023-05-02BUYunknown
玉井 克人
Tamai Katsuto
strategic10.2M¥1,254-74.8%¥2.2B ($14.2M)
2023-05-02BUYunknown
玉井 克人
Tamai Katsuto
strategic10.2M¥1,254-74.8%¥2.2B ($14.2M)
2023-05-02BUYunknown
玉井 克人
Tamai Katsuto
strategic10.2M¥1,254-74.8%¥2.2B ($14.2M)
2022-10-14BUYMarket Buy
五味 大輔
Gomi Daisuke
passive3.7M¥796-60.3%¥558M ($3.6M)
2022-10-14BUYMarket Buy
五味 大輔
Gomi Daisuke
passive3.7M¥796-60.3%¥558M ($3.6M)
2022-09-02BUYMarket Buy
五味 大輔
Gomi Daisuke
passive3.0M¥995-68.2%¥3.0B ($19.1M)
2021-08-26SELLunknown
大久保 俊幸
OKUBO TOSHIYUKI
strategic2.7M¥705+55.2%¥419M ($2.7M)

Frequently asked questions

Who has been buying StemRIM stock?
5 distinct investors have filed 4 disclosed large-shareholding filings in StemRIM (4599), most recently on 2024-06-14. 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 StemRIM have?
StemRIM has 4 buy-side and 4 sell-side disclosures on record, covering ¥2.5B ($16.0M) in total reported value, spanning 2021-08-26 to 2024-06-14.
Where does StockDrifts get StemRIM 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 StemRIM. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.