Who has been buying JTEC Corporation stock?

3 distinct investors have filed 4 disclosed large-shareholding filings in JTEC Corporation (3446), most recently on 2023-09-27. 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 JTEC Corporation have?

JTEC Corporation has 4 buy-side and 1 sell-side disclosures on record, covering ¥272M ($1.8M) in total reported value, spanning 2021-04-13 to 2023-09-27.

Where does StockDrifts get JTEC Corporation 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.

JTEC Corporation 3446

Company

株式会社ジェイテックコーポレーションJTEC Corporation

Investors

Buys

Total Value

¥272M ($1.8M)

Avg Return

-23.99%

Last Filing

2023-09-27

JTEC Corporation (3446) has 4 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥272M ($1.8M) in reported transaction value. The earliest filing StockDrifts holds for JTEC Corporation is dated 2021-04-13; the most recent is 2023-09-27. 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 -23.99%, 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
2023-09-27	BUY	unknown	津村優磨 Yuma Tsumura	strategic	15.0K	¥2,621	-21.5%	¥39M ($254K)
2023-09-27	BUY	unknown	津村尚史 Takashi Tsumura	activist	2.5M	¥2,621	-21.5%	¥64M ($413K)
2023-09-27	BUY	unknown	津村尚史 Takashi Tsumura	activist	2.5M	¥2,621	-21.5%	¥64M ($414K)
2023-09-27	BUY	unknown	津村茉鈴菜 Marina Tsumura	strategic	15.0K	¥2,621	-21.5%	¥39M ($254K)
2023-09-27	BUY	unknown	津村優磨 Yuma Tsumura	strategic	15.0K	¥2,621	-21.5%	¥39M ($254K)
2023-09-27	BUY	unknown	津村茉鈴菜 Marina Tsumura	strategic	15.0K	¥2,621	-21.5%	¥39M ($254K)
2023-09-27	BUY	unknown	津村優磨 Yuma Tsumura	strategic	15.0K	¥2,621	-21.5%	¥39M ($254K)
2023-09-27	BUY	unknown	津村茉鈴菜 Marina Tsumura	strategic	15.0K	¥2,621	-21.5%	¥39M ($254K)
2023-09-27	BUY	unknown	津村尚史 Takashi Tsumura	activist	2.5M	¥2,621	-21.5%	¥64M ($414K)
2022-08-31	BUY	unknown	津村茉鈴菜 Marina Tsumura	strategic	15.0K	¥1,828	+12.6%	¥27M ($177K)
2022-08-31	BUY	unknown	津村優磨 Yuma Tsumura	strategic	15.0K	¥1,828	+12.6%	¥27M ($177K)
2022-08-31	BUY	unknown	津村尚史 Takashi Tsumura	activist	2.7M	¥1,828	+12.6%	¥4.9B ($31.5M)
2022-01-06	BUY	unknown	津村茉鈴菜 Marina Tsumura	strategic	15.0K	¥1,726	+19.2%	¥26M ($167K)
2022-01-06	BUY	unknown	津村優磨 Yuma Tsumura	strategic	15.0K	¥1,726	+19.2%	¥26M ($167K)
2022-01-06	SELL	unknown	津村尚史 Takashi Tsumura	activist	2.7M	¥1,726	-19.2%	¥71K ($457)
2021-07-30	BUY	unknown	津村尚史 Takashi Tsumura	activist	2.7M	¥3,720	-44.7%	¥9.9B ($64.1M)
2021-07-30	BUY	unknown	津村茉鈴菜 Marina Tsumura	strategic	15.0K	¥3,720	-44.7%	¥56M ($360K)
2021-07-30	BUY	unknown	津村優磨 Yuma Tsumura	strategic	15.0K	¥3,720	-44.7%	¥56M ($360K)
2021-04-15	BUY	unknown	津村茉鈴菜 Marina Tsumura	strategic	15.0K	¥3,005	-31.5%	¥45M ($291K)
2021-04-15	BUY	unknown	津村優磨 Yuma Tsumura	strategic	15.0K	¥3,005	-31.5%	¥45M ($291K)
2021-04-15	BUY	unknown	津村尚史 Takashi Tsumura	activist	2.7M	¥3,005	-31.5%	¥79M ($512K)
2021-04-13	BUY	unknown	津村茉鈴菜 Marina Tsumura	strategic	15.0K	¥2,866	-28.2%	¥43M ($277K)
2021-04-13	BUY	unknown	津村優磨 Yuma Tsumura	strategic	15.0K	¥2,866	-28.2%	¥43M ($277K)
2021-04-13	BUY	unknown	津村尚史 Takashi Tsumura	activist	2.9M	¥2,866	-28.2%	¥8.2B ($53.1M)

Frequently asked questions

Who has been buying JTEC Corporation stock?: 3 distinct investors have filed 4 disclosed large-shareholding filings in JTEC Corporation (3446), most recently on 2023-09-27. 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 JTEC Corporation have?: JTEC Corporation has 4 buy-side and 1 sell-side disclosures on record, covering ¥272M ($1.8M) in total reported value, spanning 2021-04-13 to 2023-09-27.
Where does StockDrifts get JTEC Corporation 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 JTEC Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.