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Jason Co., Ltd. 3080

Company
株式会社ジェーソンJason Co., Ltd.
Investors
3
Buys
0
Total Value
—
Avg Return
—
Last Filing
2025-08-08

Jason Co., Ltd. (3080) has 0 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 3 distinct investors. The earliest filing StockDrifts holds for Jason Co., Ltd. is dated 2024-02-14; the most recent is 2025-08-08. 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)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-08-08BUYnegotiated
太田 磨草子
Masoko Ota
unknown800.0K¥692+10.7%¥554M ($3.6M)
2025-08-08SELLnegotiated
太田 万三彦
Masahiko Ota
activist3.3M¥692-10.7%¥89M ($572K)
2025-08-08BUYnegotiated
株式会社太田興産
Ota Kosan Co., Ltd.
unknown4.3M¥692+10.7%¥3.0B ($19.1M)
2025-02-04BUYnegotiated
株式会社太田興産
Ota Kosan Co., Ltd.
unknown4.3M¥707+8.3%¥3.0B ($19.5M)
2025-02-04SELLnegotiated
太田 万三彦
Masahiko Ota
activist3.4M¥707-8.3%¥297M ($1.9M)
2025-02-04BUYnegotiated
太田 磨草子
Masoko Ota
unknown800.0K¥707+8.3%¥566M ($3.6M)
2024-02-14BUYnegotiated
株式会社太田興産
Ota Kosan Co., Ltd.
unknown4.3M¥674+13.7%¥2.9B ($18.6M)
2024-02-14BUYnegotiated
太田 磨草子
Masoko Ota
unknown800.0K¥674+13.7%¥539M ($3.5M)
2024-02-14BUYnegotiated
株式会社太田興産
Ota Kosan Co., Ltd.
unknown4.3M¥674+13.7%¥2.9B ($18.6M)
2024-02-14BUYnegotiated
太田 磨草子
Masoko Ota
unknown800.0K¥674+13.7%¥539M ($3.5M)
2024-02-14SELLnegotiated
太田 万三彦
Masahiko Ota
activist3.8M¥674-13.7%¥472M ($3.0M)
2024-02-14SELLnegotiated
太田 万三彦
Masahiko Ota
activist3.8M¥674-13.7%¥472M ($3.0M)

Frequently asked questions

Who has been buying Jason Co., Ltd. stock?
3 distinct investors have filed 0 disclosed large-shareholding filings in Jason Co., Ltd. (3080), most recently on 2025-08-08. 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 Jason Co., Ltd. have?
Jason Co., Ltd. has 0 buy-side and 4 sell-side disclosures on record, spanning 2024-02-14 to 2025-08-08.
Where does StockDrifts get Jason 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 Jason Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.