Who has been buying ZIGExN Co., Ltd. stock?

5 distinct investors have filed 8 disclosed large-shareholding filings in ZIGExN Co., Ltd. (3679), most recently on 2026-04-24. 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 ZIGExN Co., Ltd. have?

ZIGExN Co., Ltd. has 8 buy-side and 1 sell-side disclosures on record, covering ¥5.1B ($32.6M) in total reported value, spanning 2021-05-12 to 2026-04-24.

Where does StockDrifts get ZIGExN 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.

ZIGExN Co., Ltd. 3679

Company

株式会社じげんZIGExN Co., Ltd.

Investors

Buys

Total Value

¥5.1B ($32.6M)

Avg Return

-0.38%

Last Filing

2026-04-24

ZIGExN Co., Ltd. (3679) has 8 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥5.1B ($32.6M) in reported transaction value. The earliest filing StockDrifts holds for ZIGExN Co., Ltd. is dated 2021-05-12; the most recent is 2026-04-24. 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 -0.38%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2026-06-09	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	4.1M	¥386	+3.1%	¥1.6B ($10.2M)
2026-06-09	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	2.1M	¥386	+3.1%	¥830M ($5.4M)
2026-04-24	BUY	unknown	株式会社じょうげん	activist	48.9M	¥410	-2.4%	¥20.0B ($129.3M)
2026-04-24	BUY	unknown	平尾丈	activist	5.3M	¥410	-2.4%	¥2.2B ($14.0M)
2025-12-05	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	6.2M	¥467	-10.7%	¥2.9B ($18.8M)
2025-08-06	BUY	Market Buy	平尾丈 Jo Hirao	activist	5.3M	¥515	-19.0%	¥40M ($256K)
2025-08-06	BUY	Market Buy	株式会社じょうげん Jogen Co., Ltd.	activist	48.9M	¥515	-19.0%	¥385M ($2.5M)
2025-03-05	BUY	Market Buy	株式会社じょうげん Jogen Co., Ltd.	activist	48.9M	¥440	-5.2%	¥21.5B ($138.8M)
2025-03-05	BUY	Market Buy	平尾丈 Jo Hirao	activist	5.3M	¥440	-5.2%	¥103M ($666K)
2023-11-08	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	4.1M	¥500	+16.6%	¥804M ($5.2M)
2022-12-02	BUY	unknown	平尾丈 Jo Hirao	activist	5.1M	¥356	+17.1%	¥1.8B ($11.6M)
2022-12-02	BUY	unknown	株式会社じょうげん Jogen Co., Ltd.	activist	48.9M	¥356	+17.1%	¥17.4B ($112.3M)
2022-05-11	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	5.7M	¥290	+43.8%	¥1.7B ($10.6M)
2022-02-18	BUY	unknown	株式会社じょうげん Jogen Co., Ltd.	activist	48.9M	¥298	+39.9%	¥14.6B ($94.0M)
2022-02-18	BUY	unknown	平尾丈 Jo Hirao	activist	5.1M	¥298	+39.9%	¥1.5B ($9.7M)
2021-11-04	BUY	unknown	株式会社じょうげん Jogen Co., Ltd.	activist	48.9M	¥405	+3.0%	¥19.8B ($127.8M)
2021-11-04	BUY	unknown	平尾丈 Jo Hirao	activist	5.1M	¥405	+3.0%	¥2.0B ($13.2M)
2021-06-25	BUY	unknown	株式会社じょうげん Jogen Co., Ltd.	activist	48.9M	¥419	-0.5%	¥20.5B ($132.2M)
2021-06-25	BUY	unknown	株式会社じょうげん Jogen Co., Ltd.	activist	48.9M	¥419	-0.5%	¥20.5B ($132.2M)
2021-06-25	BUY	unknown	平尾丈 Jo Hirao	activist	5.3M	¥419	-0.5%	¥2.2B ($14.4M)
2021-06-25	BUY	unknown	平尾丈 Jo Hirao	activist	5.1M	¥419	-0.5%	¥2.1B ($13.7M)
2021-06-22	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	484.0K	¥423	-1.4%	¥5M ($30K)
2021-06-22	BUY	Market Buy	レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc.	passive	4.1M	¥423	-1.4%	¥1.7B ($11.1M)
2021-05-12	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	471.1K	¥379	+10.0%	¥179M ($1.2M)
2021-05-12	BUY	Market Buy	レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc.	passive	5.3M	¥379	+10.0%	¥2.0B ($12.8M)

Frequently asked questions

Who has been buying ZIGExN Co., Ltd. stock?: 5 distinct investors have filed 8 disclosed large-shareholding filings in ZIGExN Co., Ltd. (3679), most recently on 2026-04-24. 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 ZIGExN Co., Ltd. have?: ZIGExN Co., Ltd. has 8 buy-side and 1 sell-side disclosures on record, covering ¥5.1B ($32.6M) in total reported value, spanning 2021-05-12 to 2026-04-24.
Where does StockDrifts get ZIGExN 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 ZIGExN Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.