Who has been buying Tein, Inc. stock?

4 distinct investors have filed 12 disclosed large-shareholding filings in Tein, Inc. (7217), most recently on 2025-02-14. 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 Tein, Inc. have?

Tein, Inc. has 12 buy-side and 4 sell-side disclosures on record, covering ¥271M ($1.7M) in total reported value, spanning 2021-06-22 to 2025-02-14.

Where does StockDrifts get Tein, Inc. 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.

Tein, Inc. 7217

Company

株式会社テインTein, Inc.

Investors

Buys

Total Value

¥271M ($1.7M)

Avg Return

+4.32%

Last Filing

2025-02-14

Tein, Inc. (7217) has 12 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥271M ($1.7M) in reported transaction value. The earliest filing StockDrifts holds for Tein, Inc. is dated 2021-06-22; the most recent is 2025-02-14. 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 +4.32%, 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
2025-02-14	BUY	Market Buy	株式会社イチノホールディングス Ichino Holdings Co., Ltd.	strategic	1.8M	¥417	+4.3%	¥57M ($365K)
2025-02-14	BUY	Market Buy	市野澄恵 Sumie Ichino	activist	121.5K	¥417	+4.3%	¥4M ($24K)
2025-02-14	BUY	Market Buy	市野諮 Hakaru Ichino	activist	686.3K	¥417	+4.3%	¥11M ($70K)
2024-05-24	BUY	unknown	株式会社イチノホールディングス Ichino Holdings Co., Ltd.	strategic	1.8M	¥507.5	-14.3%	¥930M ($6.0M)
2024-05-24	BUY	unknown	市野澄恵 Sumie Ichino	activist	121.5K	¥507.5	-14.3%	¥62M ($398K)
2024-05-24	BUY	unknown	株式会社イチノホールディングス Ichino Holdings Co., Ltd.	strategic	1.8M	¥507.5	-14.3%	¥930M ($6.0M)
2024-05-24	BUY	unknown	市野澄恵 Sumie Ichino	activist	121.5K	¥507.5	-14.3%	¥62M ($398K)
2024-05-24	BUY	unknown	株式会社イチノホールディングス Ichino Holdings Co., Ltd.	strategic	1.8M	¥507.5	-14.3%	¥930M ($6.0M)
2024-05-24	BUY	unknown	市野澄恵 Sumie Ichino	activist	121.5K	¥507.5	-14.3%	¥62M ($398K)
2024-05-24	SELL	unknown	市野諮 Hakaru Ichino	activist	713.3K	¥507.5	+14.3%	¥30M ($193K)
2024-05-24	BUY	unknown	市野諮 Hakaru Ichino	activist	713.3K	¥507.5	-14.3%	¥30M ($193K)
2024-05-24	SELL	unknown	市野諮 Hakaru Ichino	activist	713.3K	¥507.5	+14.3%	¥30M ($193K)
2022-12-22	BUY	unknown	市野澄恵 Sumie Ichino	activist	121.5K	¥417	+4.3%	¥9M ($61K)
2022-12-22	BUY	unknown	株式会社イチノホールディングス Ichino Holdings Co., Ltd.	strategic	1.8M	¥417	+4.3%	¥144M ($928K)
2022-12-22	BUY	unknown	株式会社イチノホールディングス Ichino Holdings Co., Ltd.	strategic	1.8M	¥417	+4.3%	¥144M ($928K)
2022-12-22	BUY	Market Buy	株式会社イチノホールディングス Ichino Holdings Co., Ltd.	strategic	1.8M	¥417	+4.3%	¥144M ($928K)
2022-12-22	BUY	Market Buy	市野澄恵 Sumie Ichino	activist	121.5K	¥417	+4.3%	¥9M ($61K)
2022-12-22	BUY	unknown	市野澄恵 Sumie Ichino	activist	121.5K	¥417	+4.3%	¥9M ($61K)
2022-12-22	BUY	unknown	市野諮 Hakaru Ichino	activist	772.3K	¥417	+4.3%	¥61M ($395K)
2022-12-22	BUY	Market Buy	市野諮 Hakaru Ichino	activist	772.3K	¥417	+4.3%	¥61M ($395K)
2022-12-22	BUY	unknown	市野諮 Hakaru Ichino	activist	772.3K	¥417	+4.3%	¥61M ($395K)
2021-06-22	SELL	unknown	市野諮 Hakaru Ichino	activist	770.3K	¥648	+32.9%	¥137M ($882K)
2021-06-22	BUY	unknown	株式会社イチノホールディングス Ichino Holdings Co., Ltd.	strategic	1.8M	¥648	-32.9%	¥1.2B ($7.7M)
2021-06-22	BUY	unknown	市野澄恵 Sumie Ichino	activist	121.5K	¥648	-32.9%	¥79M ($508K)
2021-06-22	SELL	unknown	株式会社テイン Tein, Inc.	other	0	¥648	+32.9%	¥945M ($6.1M)

Frequently asked questions

Who has been buying Tein, Inc. stock?: 4 distinct investors have filed 12 disclosed large-shareholding filings in Tein, Inc. (7217), most recently on 2025-02-14. 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 Tein, Inc. have?: Tein, Inc. has 12 buy-side and 4 sell-side disclosures on record, covering ¥271M ($1.7M) in total reported value, spanning 2021-06-22 to 2025-02-14.
Where does StockDrifts get Tein, Inc. 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 Tein, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.