Who has been buying LeTech Corporation stock?

7 distinct investors have filed 18 disclosed large-shareholding filings in LeTech Corporation (3497), most recently on 2025-07-07. 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 LeTech Corporation have?

LeTech Corporation has 18 buy-side and 36 sell-side disclosures on record, covering ¥28.9B ($186.2M) in total reported value, spanning 2021-12-27 to 2025-07-07.

Where does StockDrifts get LeTech 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.

LeTech Corporation 3497

Company

株式会社LeTechLeTech Corporation

Investors

Buys

Total Value

¥28.9B ($186.2M)

Avg Return

+35.38%

Last Filing

2025-07-07

LeTech Corporation (3497) has 18 disclosed large-shareholding filings and 36 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥28.9B ($186.2M) in reported transaction value. The earliest filing StockDrifts holds for LeTech Corporation is dated 2021-12-27; the most recent is 2025-07-07. 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 +35.38%, 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
2025-07-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	9.0K	¥1,493	-0.1%	¥495M ($3.2M)
2025-06-26	SELL	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,493	+0.1%	¥2M ($10K)
2025-06-26	SELL	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,493	+0.1%	¥2M ($10K)
2025-06-24	SELL	Market Buy	株式会社リーガルアセット Legal Asset Co., Ltd.	unknown	1.1M	¥1,494	+0.1%	¥2M ($10K)
2025-06-24	BUY	Market Buy	住友林業株式会社 Sumitomo Forestry Co.,Ltd.	corporate	8.5M	¥1,494	-0.1%	¥1.8B ($11.6M)
2025-05-21	BUY	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,494	-0.1%	¥1.7B ($10.8M)
2025-05-21	BUY	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,494	-0.1%	¥1.7B ($10.8M)
2025-05-21	BUY	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,494	-0.1%	¥669M ($4.3M)
2025-05-21	BUY	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,494	-0.1%	¥669M ($4.3M)
2025-05-16	BUY	unknown	合同会社エメラルド Emerald	unknown	0	¥1,493	-0.1%	¥10.9B ($70.2M)
2025-05-16	SELL	unknown	合同会社エメラルド Emerald	unknown	0	¥1,493	+0.1%	¥10.9B ($70.2M)
2025-05-15	BUY	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	unknown	1.1M	¥1,492	+0.0%	¥1.7B ($10.8M)
2025-05-15	BUY	unknown	住友林業株式会社 Sumitomo Forestry Co.,Ltd.	corporate	7.3M	¥1,492	+0.0%	¥10.9B ($70.2M)
2025-04-23	SELL	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,492	+0.0%	¥2.0B ($12.7M)
2025-04-23	SELL	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,492	+0.0%	¥786M ($5.1M)
2025-04-23	SELL	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,492	+0.0%	¥786M ($5.1M)
2025-04-23	SELL	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,492	+0.0%	¥2.0B ($12.7M)
2025-04-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	260.3K	¥1,492	+0.0%	¥388M ($2.5M)
2025-04-18	BUY	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,492	+0.0%	¥1.7B ($10.8M)
2025-04-18	BUY	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,492	+0.0%	¥1.7B ($10.8M)
2025-04-18	BUY	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,492	+0.0%	¥1.7B ($10.8M)
2025-04-18	BUY	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,492	+0.0%	¥668M ($4.3M)
2025-04-18	BUY	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,492	+0.0%	¥668M ($4.3M)
2025-04-18	BUY	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,492	+0.0%	¥668M ($4.3M)
2025-04-17	BUY	unknown	合同会社エメラルド GK Emerald	activist	7.3M	¥1,493	-0.1%	¥10.9B ($70.2M)
2025-04-17	BUY	unknown	平野哲司 Tetsuji Hirano	unknown	447.7K	¥1,493	-0.1%	¥668M ($4.3M)
2025-04-04	SELL	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,491	-0.1%	¥11M ($70K)
2025-04-04	SELL	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,491	-0.1%	¥11M ($70K)
2025-04-04	SELL	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,491	-0.1%	¥2.0B ($12.8M)
2025-04-04	SELL	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥1,491	-0.1%	¥2.0B ($12.8M)
2025-04-04	SELL	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,491	-0.1%	¥736M ($4.7M)
2025-04-04	SELL	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,491	-0.1%	¥736M ($4.7M)
2025-04-04	BUY	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,491	+0.1%	¥23M ($145K)
2025-04-04	BUY	unknown	平野哲司 Tetsuji Hirano	strategic	447.7K	¥1,491	+0.1%	¥23M ($145K)
2025-04-03	SELL	Market Buy	平野哲司 Tetsuji Hirano	unknown	447.7K	¥1,491	-0.1%	¥785M ($5.1M)
2025-04-03	BUY	Market Buy	株式会社エルティ― LT Co., Ltd.	activist	7.3M	¥1,491	+0.1%	¥5.8B ($37.7M)
2025-04-03	BUY	unknown	株式会社エルティ― LT Co., Ltd.	activist	7.3M	¥1,491	+0.1%	¥5.8B ($37.7M)
2025-04-03	SELL	unknown	平野哲司 Tetsuji Hirano	unknown	447.7K	¥1,491	-0.1%	¥785M ($5.1M)
2025-04-02	BUY	unknown	平野哲司 Tetsuji Hirano	unknown	447.7K	¥1,490	+0.1%	¥23M ($145K)
2025-04-02	SELL	unknown	株式会社エルティ― LT Co., Ltd.	activist	1.6M	¥1,490	-0.1%	¥15M ($94K)
2022-10-07	BUY	unknown	平野哲司 Tetsuji Hirano	unknown	430.0K	¥716	+108.4%	¥308M ($2.0M)
2022-10-07	BUY	unknown	平野哲司 Tetsuji Hirano	unknown	430.0K	¥716	+108.4%	¥308M ($2.0M)
2022-10-07	BUY	unknown	株式会社エルティー LT Co., Ltd.	activist	1.6M	¥716	+108.4%	¥1.1B ($7.2M)
2022-10-07	BUY	unknown	株式会社エルティー LT Co., Ltd.	activist	1.6M	¥716	+108.4%	¥1.1B ($7.2M)
2022-10-03	SELL	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥733	-103.5%	¥386M ($2.5M)
2022-10-03	BUY	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥733	+103.5%	¥809M ($5.2M)
2022-10-03	SELL	unknown	平野哲司 Tetsuji Hirano	strategic	430.0K	¥733	-103.5%	¥148M ($955K)
2022-10-03	SELL	unknown	平野哲司 Tetsuji Hirano	strategic	430.0K	¥733	-103.5%	¥148M ($958K)
2022-08-30	BUY	unknown	平野哲司 Tetsuji Hirano	strategic	430.0K	¥715	+108.7%	¥307M ($2.0M)
2022-08-30	BUY	unknown	株式会社リーガルアセット Legal Asset Co., Ltd.	strategic	1.1M	¥715	+108.7%	¥801M ($5.2M)

Showing the 50 most recent of 77 filings.

Frequently asked questions

Who has been buying LeTech Corporation stock?: 7 distinct investors have filed 18 disclosed large-shareholding filings in LeTech Corporation (3497), most recently on 2025-07-07. 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 LeTech Corporation have?: LeTech Corporation has 18 buy-side and 36 sell-side disclosures on record, covering ¥28.9B ($186.2M) in total reported value, spanning 2021-12-27 to 2025-07-07.
Where does StockDrifts get LeTech 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 LeTech Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.