Who has been buying Hodogaya Chemical Co., Ltd. stock?

16 distinct investors have filed 37 disclosed large-shareholding filings in Hodogaya Chemical Co., Ltd. (4112), most recently on 2026-04-23. 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 Hodogaya Chemical Co., Ltd. have?

Hodogaya Chemical Co., Ltd. has 37 buy-side and 12 sell-side disclosures on record, covering ¥7.6B ($48.9M) in total reported value, spanning 2021-03-19 to 2026-04-23.

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.

Hodogaya Chemical Co., Ltd. 4112

Company

保土谷化学工業株式会社Hodogaya Chemical Co., Ltd.

Investors

Buys

Total Value

¥7.6B ($48.9M)

Avg Return

+12.69%

Last Filing

2026-04-23

Hodogaya Chemical Co., Ltd. (4112) has 37 disclosed large-shareholding filings and 12 disclosed disposals on record, filed by 16 distinct investors. Together those filings cover ¥7.6B ($48.9M) in reported transaction value. The earliest filing StockDrifts holds for Hodogaya Chemical Co., Ltd. is dated 2021-03-19; the most recent is 2026-04-23. Across these filings the average return since disclosure is +12.69%, 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
2026-09-17	BUY	Market Buy	株式会社KANKURO	activist	7.3K	¥2,101	+2.8%	¥14M ($91K)
2026-09-17	BUY	Market Buy	株式会社ドリームキャリア	activist	46.5K	¥2,101	+2.8%	¥99M ($639K)
2026-09-17	BUY	Market Buy	株式会社UESHIMA	activist	98.3K	¥2,101	+2.8%	¥141M ($912K)
2026-09-17	BUY	Market Buy	株式会社ドリームキャリアホールディングス	activist	292.1K	¥2,101	+2.8%	¥81M ($525K)
2026-09-17	BUY	unknown	株式会社ナチュラリ	activist	508.3K	¥2,101	-	-
2026-09-17	BUY	Market Buy	植島幹九郎	activist	835.1K	¥2,101	+2.8%	¥25M ($160K)
2026-09-17	BUY	unknown	株式会社DOE5パーセント	activist	651.1K	¥2,101	-	-
2026-07-06	BUY	unknown	野村證券株式会社	other	42.8K	¥2,086	-	¥89M ($576K)
2026-07-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	32.8K	¥2,086	-3.5%	¥312M ($2.0M)
2026-07-06	SELL	unknown	野村アセットマネジメント株式会社	other	871.6K	¥2,086	-3.5%	¥197M ($1.3M)
2026-06-16	BUY	Market Buy	株式会社DOE5パーセント	activist	651.1K	¥2,270	-4.8%	¥19M ($123K)
2026-06-16	BUY	unknown	植島幹九郎	activist	823.5K	¥2,270	-	-
2026-06-16	BUY	unknown	株式会社ナチュラリ	activist	508.3K	¥2,270	-	-
2026-06-16	BUY	unknown	株式会社ドリームキャリアホールディングス	activist	253.3K	¥2,270	-	-
2026-06-16	BUY	unknown	株式会社UESHIMA	activist	29.6K	¥2,270	-	-
2026-06-15	BUY	Market Buy	株式会社DOE5パーセント	activist	643.1K	¥2,280	-5.3%	¥844M ($5.4M)
2026-06-15	SELL	unknown	植島幹九郎	activist	823.5K	¥2,280	+5.3%	¥246M ($1.6M)
2026-06-15	SELL	unknown	株式会社ナチュラリ	activist	508.3K	¥2,280	+5.3%	¥307M ($2.0M)
2026-06-15	BUY	unknown	株式会社ドリームキャリアホールディングス	activist	253.3K	¥2,280	-	-
2026-06-15	BUY	Market Buy	株式会社UESHIMA	activist	29.6K	¥2,280	-5.3%	¥69M ($446K)
2026-06-15	SELL	unknown	植島幹九郎	activist	823.5K	¥2,280	+5.3%	¥246M ($1.6M)
2026-06-15	SELL	unknown	株式会社ナチュラリ	activist	508.3K	¥2,280	+5.3%	¥307M ($2.0M)
2026-06-15	BUY	unknown	株式会社ドリームキャリアホールディングス	activist	253.3K	¥2,280	-	-
2026-06-15	BUY	Market Buy	株式会社UESHIMA	activist	29.6K	¥2,280	-5.3%	¥69M ($446K)
2026-06-15	BUY	Market Buy	株式会社DOE5パーセント	activist	643.2K	¥2,280	-5.3%	¥844M ($5.4M)
2026-04-23	BUY	Market Buy	株式会社DOE5パーセント	activist	273.3K	¥2,248	-3.9%	¥113M ($732K)
2026-04-23	BUY	Market Buy	植島幹九郎	activist	930.2K	¥2,248	-3.9%	¥8M ($49K)
2026-04-23	BUY	Market Buy	株式会社ナチュラリ	activist	643.3K	¥2,248	-3.9%	¥272M ($1.8M)
2026-04-23	BUY	unknown	株式会社ドリームキャリアホールディングス	activist	253.3K	¥2,248	-	-
2026-04-07	BUY	Market Buy	植島幹九郎	activist	927.5K	¥2,343	-7.8%	¥114M ($738K)
2026-04-07	BUY	Market Buy	株式会社ナチュラリ	activist	521.2K	¥2,343	-	-
2026-04-07	BUY	Market Buy	株式会社ドリームキャリアホールディングス	activist	253.3K	¥2,343	-7.8%	¥331M ($2.1M)
2026-04-07	BUY	Market Buy	株式会社DOE5パーセント	activist	222.5K	¥2,343	-	-
2026-03-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	182.9K	¥2,295	-5.9%	¥290M ($1.9M)
2026-03-19	SELL	unknown	野村アセットマネジメント株式会社	other	966.1K	¥2,295	+5.9%	¥224M ($1.4M)
2026-03-11	BUY	Market Buy	株式会社DOE5パーセント	activist	222.5K	¥2,419	-10.7%	¥4M ($26K)
2026-03-11	BUY	Market Buy	植島幹九郎	activist	877.8K	¥2,419	-10.7%	¥220M ($1.4M)
2026-03-11	BUY	Market Buy	株式会社ナチュラリ	activist	521.2K	¥2,419	-10.7%	¥228M ($1.5M)
2026-03-11	BUY	Market Buy	株式会社ドリームキャリアホールディングス	activist	112.8K	¥2,419	-10.7%	¥16M ($105K)
2026-01-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	57.5K	¥2,316	-6.7%	¥86M ($553K)
2026-01-21	SELL	unknown	野村アセットマネジメント株式会社	other	1.1M	¥2,316	+6.7%	¥160M ($1.0M)
2026-01-15	BUY	Market Buy	株式会社DOE5パーセント	activist	220.7K	¥2,400	-10.0%	¥279M ($1.8M)
2026-01-15	BUY	Market Buy	植島幹九郎	activist	787.9K	¥2,400	-10.0%	¥109M ($703K)
2026-01-15	BUY	Market Buy	株式会社ナチュラリ	activist	427.2K	¥2,400	-10.0%	¥36M ($234K)
2026-01-15	BUY	Market Buy	株式会社ドリームキャリアホールディングス	activist	105.9K	¥2,400	-10.0%	¥57M ($365K)
2026-01-08	BUY	Market Buy	植島幹九郎	activist	741.8K	¥2,297	-6.0%	¥325M ($2.1M)
2026-01-08	BUY	Market Buy	株式会社DOE5パーセント	activist	103.6K	¥2,297	-6.0%	¥228M ($1.5M)
2026-01-08	BUY	Market Buy	株式会社ナチュラリ	activist	412.7K	¥2,297	-	-
2026-01-08	BUY	Market Buy	株式会社ドリームキャリアホールディングス	activist	83.2K	¥2,297	-	-
2025-12-05	BUY	Market Buy	株式会社DOE5パーセント	activist	5.0K	¥1,898	-	-

Showing the 50 most recent of 93 filings.

Frequently asked questions

Who has been buying Hodogaya Chemical Co., Ltd. stock?: 16 distinct investors have filed 37 disclosed large-shareholding filings in Hodogaya Chemical Co., Ltd. (4112), most recently on 2026-04-23. 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 Hodogaya Chemical Co., Ltd. have?: Hodogaya Chemical Co., Ltd. has 37 buy-side and 12 sell-side disclosures on record, covering ¥7.6B ($48.9M) in total reported value, spanning 2021-03-19 to 2026-04-23.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.