Who has been buying Yamada Corporation stock?

4 distinct investors have filed 10 disclosed large-shareholding filings in Yamada Corporation (6392), most recently on 2026-01-19. 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 Yamada Corporation have?

Yamada Corporation has 10 buy-side and 3 sell-side disclosures on record, covering ¥411M ($2.7M) in total reported value, spanning 2021-10-07 to 2026-01-19.

Where does StockDrifts get Yamada 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.

Yamada Corporation 6392

Company

株式会社ヤマダコーポレーションYamada Corporation

Investors

Buys

Total Value

¥411M ($2.7M)

Avg Return

+22.46%

Last Filing

2026-01-19

Yamada Corporation (6392) has 10 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥411M ($2.7M) in reported transaction value. The earliest filing StockDrifts holds for Yamada Corporation is dated 2021-10-07; the most recent is 2026-01-19. 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 +22.46%, 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
2026-07-21	BUY	Market Buy	Charon Finance GmbH	activist	223.3K	¥7,510	+0.8%	¥193M ($1.2M)
2026-06-19	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	12.4K	¥7,250	+2.6%	¥90M ($582K)
2026-06-19	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	11.7K	¥7,250	+2.6%	¥3M ($22K)
2026-06-19	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	12.8K	¥7,250	+2.6%	¥93M ($599K)
2026-06-19	BUY	Market Buy	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	125.3K	¥7,250	+2.6%	¥97M ($629K)
2026-06-19	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	12.4K	¥7,250	+2.6%	¥5M ($34K)
2026-06-19	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	28.3K	¥7,250	+2.6%	¥113M ($730K)
2026-06-19	BUY	Market Buy	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	139.8K	¥7,250	+2.6%	¥104M ($674K)
2026-06-19	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	49.1K	¥7,250	+2.6%	¥151M ($977K)
2026-06-19	BUY	Market Buy	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	144.2K	¥7,250	+2.6%	¥33M ($213K)
2026-06-09	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	11.3K	¥7,330	-2.6%	¥83M ($536K)
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	111.8K	¥7,330	-2.6%	¥819M ($5.3M)
2026-01-19	BUY	Market Buy	Charon Finance GmbH	activist	197.5K	¥6,950	-8.2%	¥168M ($1.1M)
2025-05-22	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	205.7K	¥5,080	+25.6%	¥128M ($826K)
2025-04-07	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	180.5K	¥4,805	+32.8%	¥148M ($952K)
2024-11-21	BUY	Market Buy	Charon Finance GmbH	activist	173.3K	¥4,965	+28.5%	¥124M ($800K)
2024-11-21	BUY	negotiated	Charon Finance GmbH	activist	173.3K	¥4,965	+28.5%	¥124M ($800K)
2024-08-13	BUY	negotiated	Charon Finance GmbH	activist	148.4K	¥5,290	+20.6%	¥150M ($967K)
2024-08-13	BUY	negotiated	Charon Finance GmbH	activist	148.4K	¥5,290	+20.6%	¥150M ($967K)
2024-05-09	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	149.8K	¥6,340	+0.6%	¥169M ($1.1M)
2024-04-08	BUY	negotiated	りそなリース株式会社 Resona Lease Co., Ltd.	strategic	25.0K	¥5,660	+12.7%	¥142M ($913K)
2024-04-08	BUY	negotiated	株式会社埼玉りそな銀行 Saitama Resona Bank, Limited	strategic	117.6K	¥5,660	+12.7%	¥666M ($4.3M)
2024-03-11	BUY	negotiated	Charon Finance GmbH	activist	120.1K	¥5,550	+14.9%	¥667M ($4.3M)
2024-01-22	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	123.1K	¥4,855	+31.4%	¥598M ($3.9M)
2024-01-12	BUY	negotiated	首都圏リース株式会社 Shutoken Lease Co., Ltd.	strategic	25.0K	¥4,585	+39.1%	¥115M ($740K)
2024-01-12	BUY	negotiated	株式会社埼玉りそな銀行 Saitama Resona Bank, Limited	strategic	117.6K	¥4,585	+39.1%	¥539M ($3.5M)
2022-04-22	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	65.2K	¥2,519	-153.3%	¥189M ($1.2M)
2021-12-22	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	140.2K	¥2,429	-162.7%	¥61M ($391K)
2021-10-07	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	165.2K	¥2,342	-172.4%	¥125M ($809K)

Frequently asked questions

Who has been buying Yamada Corporation stock?: 4 distinct investors have filed 10 disclosed large-shareholding filings in Yamada Corporation (6392), most recently on 2026-01-19. 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 Yamada Corporation have?: Yamada Corporation has 10 buy-side and 3 sell-side disclosures on record, covering ¥411M ($2.7M) in total reported value, spanning 2021-10-07 to 2026-01-19.
Where does StockDrifts get Yamada 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 Yamada Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.