Who has been buying Yamazawa Co., Ltd. stock?

7 distinct investors have filed 4 disclosed large-shareholding filings in Yamazawa Co., Ltd. (9993), most recently on 2026-01-22. 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 Yamazawa Co., Ltd. have?

Yamazawa Co., Ltd. has 4 buy-side and 7 sell-side disclosures on record, covering ¥2.5B ($15.8M) in total reported value, spanning 2025-02-10 to 2026-01-22.

Where does StockDrifts get Yamazawa 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.

Yamazawa Co., Ltd. 9993

Company

株式会社ヤマザワYamazawa Co., Ltd.

Investors

Buys

Total Value

¥2.5B ($15.8M)

Avg Return

+2.65%

Last Filing

2026-01-22

Yamazawa Co., Ltd. (9993) has 4 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥2.5B ($15.8M) in reported transaction value. The earliest filing StockDrifts holds for Yamazawa Co., Ltd. is dated 2025-02-10; the most recent is 2026-01-22. 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 +2.65%, 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
2026-01-22	BUY	unknown	ヤマザワ産業株式会社	other	834.4K	¥1,203	-0.6%	¥998M ($6.4M)
2026-01-22	SELL	unknown	山澤廣	activist	206.3K	¥1,203	+0.6%	¥247M ($1.6M)
2026-01-22	BUY	unknown	有限会社ヤマザワ興産	other	491.6K	¥1,203	+0.6%	¥588M ($3.8M)
2026-01-22	BUY	unknown	有限会社ヤマザワホーム	other	487.9K	¥1,203	+0.6%	¥583M ($3.8M)
2026-01-22	BUY	unknown	有限会社ヤマザワコーポレーション	other	531.6K	¥1,203	+0.6%	¥636M ($4.1M)
2026-01-22	BUY	unknown	株式会社ヤマザワ・エージェンシー	other	481.1K	¥1,203	+0.6%	¥575M ($3.7M)
2025-12-26	SELL	unknown	有限会社ヤマザワ興産	other	491.6K	¥1,165	-2.7%	¥588M ($3.8M)
2025-12-26	BUY	unknown	有限会社ヤマザワホーム	other	487.9K	¥1,165	-2.7%	¥583M ($3.8M)
2025-12-26	BUY	unknown	有限会社ヤマザワコーポレーション	other	531.6K	¥1,165	-2.7%	¥636M ($4.1M)
2025-12-26	BUY	unknown	株式会社ヤマザワ・エージェンシー	other	481.1K	¥1,165	-2.7%	¥575M ($3.7M)
2025-12-26	BUY	unknown	ヤマザワ産業株式会社	other	634.4K	¥1,165	-2.7%	¥759M ($4.9M)
2025-12-26	BUY	unknown	山澤廣	activist	406.3K	¥1,165	-2.7%	¥486M ($3.1M)
2025-12-26	SELL	unknown	有限会社ヤマザワ興産	other	491.6K	¥1,165	-2.7%	¥588M ($3.8M)
2025-12-26	BUY	unknown	有限会社ヤマザワホーム	other	487.9K	¥1,165	-2.7%	¥583M ($3.8M)
2025-12-26	BUY	unknown	有限会社ヤマザワコーポレーション	other	531.6K	¥1,165	-2.7%	¥636M ($4.1M)
2025-12-26	BUY	unknown	株式会社ヤマザワ・エージェンシー	other	481.1K	¥1,165	-2.7%	¥575M ($3.7M)
2025-12-26	BUY	unknown	ヤマザワ産業株式会社	other	634.4K	¥1,165	-2.7%	¥759M ($4.9M)
2025-12-26	BUY	unknown	山澤廣	activist	406.3K	¥1,165	-2.7%	¥486M ($3.1M)
2025-12-26	SELL	unknown	有限会社ヤマザワ興産	other	491.6K	¥1,165	-2.7%	¥588M ($3.8M)
2025-12-26	BUY	unknown	有限会社ヤマザワホーム	other	487.9K	¥1,165	-2.7%	¥583M ($3.8M)
2025-12-26	BUY	unknown	有限会社ヤマザワコーポレーション	other	531.6K	¥1,165	-2.7%	¥636M ($4.1M)
2025-12-26	BUY	unknown	株式会社ヤマザワ・エージェンシー	other	481.1K	¥1,165	-2.7%	¥575M ($3.7M)
2025-12-26	BUY	unknown	ヤマザワ産業株式会社	other	634.4K	¥1,165	-2.7%	¥759M ($4.9M)
2025-12-26	BUY	unknown	山澤廣	activist	406.3K	¥1,165	-2.7%	¥486M ($3.1M)
2025-12-10	BUY	unknown	有限会社ヤマザワ興産	other	1.0M	¥1,153	-3.7%	¥1.2B ($7.8M)
2025-12-10	BUY	unknown	有限会社ヤマザワホーム	other	487.9K	¥1,153	-3.7%	¥583M ($3.8M)
2025-12-10	BUY	unknown	有限会社ヤマザワコーポレーション	other	531.6K	¥1,153	-3.7%	¥636M ($4.1M)
2025-12-10	BUY	unknown	株式会社ヤマザワ・エージェンシー	other	481.1K	¥1,153	-3.7%	¥575M ($3.7M)
2025-12-10	BUY	unknown	ヤマザワ産業株式会社	other	634.4K	¥1,153	-3.7%	¥759M ($4.9M)
2025-12-10	BUY	unknown	山澤廣	activist	406.3K	¥1,153	-3.7%	¥486M ($3.1M)
2025-12-10	BUY	unknown	有限会社ヤマザワ興産	other	1.0M	¥1,153	-3.7%	¥1.2B ($7.8M)
2025-12-10	BUY	unknown	有限会社ヤマザワホーム	other	487.9K	¥1,153	-3.7%	¥583M ($3.8M)
2025-12-10	BUY	unknown	有限会社ヤマザワコーポレーション	other	531.6K	¥1,153	-3.7%	¥636M ($4.1M)
2025-12-10	BUY	unknown	株式会社ヤマザワ・エージェンシー	other	481.1K	¥1,153	-3.7%	¥575M ($3.7M)
2025-12-10	BUY	unknown	ヤマザワ産業株式会社	other	634.4K	¥1,153	-3.7%	¥759M ($4.9M)
2025-12-10	BUY	unknown	山澤廣	activist	406.3K	¥1,153	-3.7%	¥486M ($3.1M)
2025-12-10	BUY	unknown	有限会社ヤマザワ興産	other	1.0M	¥1,153	-3.7%	¥1.2B ($7.8M)
2025-12-10	BUY	unknown	有限会社ヤマザワホーム	other	487.9K	¥1,153	-3.7%	¥583M ($3.8M)
2025-12-10	BUY	unknown	有限会社ヤマザワコーポレーション	other	531.6K	¥1,153	-3.7%	¥636M ($4.1M)
2025-12-10	BUY	unknown	株式会社ヤマザワ・エージェンシー	other	481.1K	¥1,153	-3.7%	¥575M ($3.7M)
2025-12-10	BUY	unknown	ヤマザワ産業株式会社	other	634.4K	¥1,153	-3.7%	¥759M ($4.9M)
2025-12-10	BUY	unknown	山澤廣	activist	406.3K	¥1,153	-3.7%	¥486M ($3.1M)
2025-12-09	BUY	unknown	有限会社ヤマザワ興産	other	1.0M	¥1,153	-3.7%	¥1.2B ($7.8M)
2025-12-09	BUY	unknown	有限会社ヤマザワホーム	other	487.9K	¥1,153	-3.7%	¥583M ($3.8M)
2025-12-09	BUY	unknown	有限会社ヤマザワコーポレーション	other	531.6K	¥1,153	-3.7%	¥636M ($4.1M)
2025-12-09	BUY	unknown	株式会社ヤマザワ・エージェンシー	other	481.1K	¥1,153	-3.7%	¥575M ($3.7M)
2025-12-09	BUY	unknown	ヤマザワ産業株式会社	other	634.4K	¥1,153	-3.7%	¥759M ($4.9M)
2025-12-09	BUY	unknown	山澤廣	activist	406.3K	¥1,153	+3.7%	¥486M ($3.1M)
2025-12-09	SELL	unknown	山澤進	unknown	0	¥1,153	-3.7%	-
2025-12-09	BUY	unknown	有限会社ヤマザワ興産	other	1.0M	¥1,153	-3.7%	¥1.2B ($7.8M)

Showing the 50 most recent of 77 filings.

Frequently asked questions

Who has been buying Yamazawa Co., Ltd. stock?: 7 distinct investors have filed 4 disclosed large-shareholding filings in Yamazawa Co., Ltd. (9993), most recently on 2026-01-22. 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 Yamazawa Co., Ltd. have?: Yamazawa Co., Ltd. has 4 buy-side and 7 sell-side disclosures on record, covering ¥2.5B ($15.8M) in total reported value, spanning 2025-02-10 to 2026-01-22.
Where does StockDrifts get Yamazawa 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 Yamazawa Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.