Who has been buying SIG Group Co.,Ltd. stock?

2 distinct investors have filed 1 disclosed large-shareholding filings in SIG Group Co.,Ltd. (4386), most recently on 2023-12-25. 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 SIG Group Co.,Ltd. have?

SIG Group Co.,Ltd. has 1 buy-side and 10 sell-side disclosures on record, covering ¥800M ($5.2M) in total reported value, spanning 2021-11-19 to 2023-12-25.

Where does StockDrifts get SIG Group 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.

SIG Group Co.,Ltd. 4386

Company

株式会社SIGグループSIG Group Co.,Ltd.

Investors

Buys

Total Value

¥800M ($5.2M)

Avg Return

+77.71%

Last Filing

2023-12-25

SIG Group Co.,Ltd. (4386) has 1 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥800M ($5.2M) in reported transaction value. The earliest filing StockDrifts holds for SIG Group Co.,Ltd. is dated 2021-11-19; the most recent is 2023-12-25. 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 +77.71%, 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
2023-12-25	BUY	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	1.6M	¥498	+77.7%	¥800M ($5.2M)
2023-12-25	BUY	unknown	石川純生 SUMIO ISHIKAWA	activist	118.4K	¥498	+77.7%	¥59M ($380K)
2022-01-05	SELL	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	1.9M	¥526	-68.3%	¥37M ($239K)
2022-01-05	BUY	unknown	石川純生 SUMIO ISHIKAWA	activist	118.4K	¥526	+68.3%	¥62M ($402K)
2021-12-10	BUY	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	2.0M	¥545	+62.4%	¥1.1B ($6.9M)
2021-12-10	SELL	unknown	石川純生 SUMIO ISHIKAWA	activist	118.4K	¥545	-62.4%	¥208M ($1.3M)
2021-12-02	BUY	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	2.0M	¥566	+56.4%	¥1.1B ($7.2M)
2021-12-02	BUY	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	2.0M	¥566	+56.4%	¥1.1B ($7.2M)
2021-12-02	SELL	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	2.0M	¥566	-56.4%	¥30M ($190K)
2021-12-02	BUY	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	2.0M	¥566	+56.4%	¥1.1B ($7.2M)
2021-12-02	SELL	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	2.0M	¥566	-56.4%	¥30M ($190K)
2021-12-02	SELL	unknown	石川純生 SUMIO ISHIKAWA	activist	618.4K	¥566	-56.4%	¥6M ($39K)
2021-12-02	SELL	unknown	石川純生 SUMIO ISHIKAWA	activist	500.4K	¥566	-56.4%	¥67M ($431K)
2021-12-02	SELL	unknown	石川純生 SUMIO ISHIKAWA	activist	500.4K	¥566	-56.4%	¥67M ($431K)
2021-12-02	SELL	unknown	石川純生 SUMIO ISHIKAWA	activist	618.4K	¥566	-56.4%	¥6M ($39K)
2021-12-02	SELL	unknown	石川純生 SUMIO ISHIKAWA	activist	500.4K	¥566	-56.4%	¥67M ($431K)
2021-11-19	SELL	unknown	株式会社IGカンパニー IG Company Co., Ltd.	strategic	2.0M	¥675	-31.1%	¥779K ($5K)
2021-11-19	BUY	unknown	石川純生 SUMIO ISHIKAWA	activist	615.6K	¥675	+31.1%	¥416M ($2.7M)

Frequently asked questions

Who has been buying SIG Group Co.,Ltd. stock?: 2 distinct investors have filed 1 disclosed large-shareholding filings in SIG Group Co.,Ltd. (4386), most recently on 2023-12-25. 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 SIG Group Co.,Ltd. have?: SIG Group Co.,Ltd. has 1 buy-side and 10 sell-side disclosures on record, covering ¥800M ($5.2M) in total reported value, spanning 2021-11-19 to 2023-12-25.
Where does StockDrifts get SIG Group 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 SIG Group Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.