Who has been buying Hokko Chemical Industry Co., Ltd. stock?

12 distinct investors have filed 73 disclosed large-shareholding filings in Hokko Chemical Industry Co., Ltd. (4992), most recently on 2025-12-08. 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 Hokko Chemical Industry Co., Ltd. have?

Hokko Chemical Industry Co., Ltd. has 73 buy-side and 68 sell-side disclosures on record, covering ¥20.7B ($133.6M) in total reported value, spanning 2021-03-22 to 2025-12-08.

Where does StockDrifts get Hokko Chemical Industry 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.

Hokko Chemical Industry Co., Ltd. 4992

Company

北興化学工業株式会社Hokko Chemical Industry Co., Ltd.

Investors

Buys

Total Value

¥20.7B ($133.6M)

Avg Return

+58.14%

Last Filing

2025-12-08

Hokko Chemical Industry Co., Ltd. (4992) has 73 disclosed large-shareholding filings and 68 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥20.7B ($133.6M) in reported transaction value. The earliest filing StockDrifts holds for Hokko Chemical Industry Co., Ltd. is dated 2021-03-22; the most recent is 2025-12-08. 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 +58.14%, 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
2026-08-06	BUY	Market Buy	りそなアセットマネジメント株式会社	other	222.1K	¥1,981	+2.7%	¥16M ($105K)
2026-08-06	BUY	Market Buy	株式会社りそな銀行	strategic	1.7M	¥1,981	+2.7%	¥572M ($3.7M)
2026-06-22	SELL	unknown	りそなアセットマネジメント株式会社	other	214.7K	¥2,130	+9.5%	¥94M ($604K)
2026-06-22	BUY	Market Buy	株式会社りそな銀行	strategic	1.4M	¥2,130	-9.5%	¥386M ($2.5M)
2026-06-08	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	8.4K	¥1,889	-12.7%	¥114M ($737K)
2026-06-08	SELL	negotiated	野村ホールディングス株式会社	strategic	1.0K	¥1,889	-12.7%	¥1.6B ($10.2M)
2026-06-08	BUY	unknown	野村證券株式会社	other	884.1K	¥1,889	+12.7%	¥1.7B ($10.8M)
2026-06-08	BUY	Market Buy	野村プロパティーズ株式会社	passive	709.0K	¥1,889	+12.7%	¥1.3B ($8.6M)
2026-06-08	BUY	unknown	野村アセットマネジメント株式会社	other	983.6K	¥1,889	+12.7%	¥1.9B ($12.0M)
2026-06-03	SELL	unknown	野村證券株式会社	other	1.5K	¥1,785	-19.3%	¥1.7B ($10.8M)
2026-06-03	BUY	Market Buy	野村プロパティーズ株式会社	passive	709.0K	¥1,785	+19.3%	¥1.3B ($8.2M)
2026-06-03	SELL	unknown	野村アセットマネジメント株式会社	other	983.6K	¥1,785	-19.3%	¥113M ($728K)
2026-06-03	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	69.5K	¥1,785	+19.3%	¥128M ($823K)
2026-06-03	BUY	Market Buy	野村ホールディングス株式会社	strategic	836.0K	¥1,785	+19.3%	¥1.5B ($9.6M)
2025-12-08	BUY	Market Buy	野村プロパティーズ株式会社	passive	709.0K	¥1,623	-9.7%	¥1.3B ($8.1M)
2025-12-08	BUY	Market Buy	野村アセットマネジメント株式会社	other	1.0M	¥1,623	+9.7%	¥1.9B ($12.0M)
2025-12-08	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-3.9K	¥1,623	-9.7%	¥7M ($45K)
2025-12-08	SELL	Market Buy	野村ホールディングス株式会社	strategic	1.0K	¥1,623	-9.7%	¥2M ($11K)
2025-12-08	BUY	Market Buy	野村證券株式会社	other	943.7K	¥1,623	+9.7%	¥1.7B ($10.8M)
2025-12-05	BUY	unknown	野村プロパティーズ株式会社	passive	709.0K	¥1,619	+9.9%	¥1.3B ($8.1M)
2025-12-05	SELL	unknown	野村アセットマネジメント株式会社	other	1.0M	¥1,619	-9.9%	¥1.9B ($12.0M)
2025-12-05	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	47	¥1,619	-9.9%	¥84K ($540)
2025-12-05	BUY	unknown	野村ホールディングス株式会社	strategic	836.0K	¥1,619	+9.9%	¥1.5B ($9.6M)
2025-12-05	SELL	unknown	野村證券株式会社	other	106.5K	¥1,619	-9.9%	¥190M ($1.2M)
2025-11-07	SELL	negotiated	りそなアセットマネジメント株式会社 Resona Asset Management Co., Ltd.	other	268.1K	¥1,622	-9.7%	¥23M ($149K)
2025-11-07	SELL	negotiated	株式会社りそな銀行 Resona Bank, Limited.	strategic	1.3M	¥1,622	-9.7%	¥541M ($3.5M)
2025-09-19	SELL	Market Buy	りそなアセットマネジメント株式会社 Resona Asset Management Co., Ltd.	other	281.1K	¥1,659	-7.3%	¥71M ($457K)
2025-09-19	BUY	Market Buy	株式会社りそな銀行 Resona Bank, Limited.	strategic	1.6M	¥1,659	+7.3%	¥487M ($3.1M)
2025-07-22	BUY	Market Buy	りそなアセットマネジメント株式会社 Resona Asset Management Co., Ltd.	other	324.0K	¥1,446	+23.1%	¥16M ($106K)
2025-07-22	BUY	Market Buy	株式会社りそな銀行 Resona Bank, Limited.	strategic	1.4M	¥1,446	+23.1%	¥99M ($638K)
2025-06-09	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.3M	¥1,331	+33.7%	¥1.7B ($10.8M)
2025-06-09	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	5.5K	¥1,331	-33.7%	¥8M ($49K)
2025-06-09	SELL	unknown	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	1.0K	¥1,331	-33.7%	¥1.1B ($7.2M)
2025-06-09	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	936.1K	¥1,331	+33.7%	¥1.1B ($7.2M)
2025-06-09	BUY	unknown	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	passive	709.0K	¥1,331	+33.7%	¥944M ($6.1M)
2025-06-05	BUY	Market Buy	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	passive	709.0K	¥1,327	+34.1%	¥941M ($6.1M)
2025-06-05	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.3M	¥1,327	+34.1%	¥4M ($24K)
2025-06-05	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	12.1K	¥1,327	+34.1%	¥16M ($104K)
2025-06-05	BUY	Market Buy	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	836.0K	¥1,327	+34.1%	¥1.1B ($7.1M)
2025-06-05	SELL	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	94.7K	¥1,327	-34.1%	¥1.1B ($7.1M)
2025-05-12	BUY	Market Buy	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	passive	709.0K	¥1,238	+43.8%	¥46M ($296K)
2025-05-12	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.3M	¥1,238	+43.8%	¥257M ($1.7M)
2025-05-12	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	11.5K	¥1,238	+43.8%	¥1.1B ($6.8M)
2025-05-12	BUY	Market Buy	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	1.0K	¥1,238	+43.8%	¥1M ($8K)
2025-05-12	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	925.2K	¥1,238	+43.8%	¥53M ($341K)
2025-02-20	BUY	negotiated	りそなアセットマネジメント株式会社 Resona Asset Management Co., Ltd.	other	330.0K	¥1,296	+37.4%	¥428M ($2.8M)
2025-02-20	SELL	negotiated	株式会社りそな銀行 Resona Bank, Limited.	strategic	1.4M	¥1,296	-37.4%	¥85M ($552K)
2025-01-06	BUY	unknown	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	passive	709.0K	¥1,328	+34.0%	¥942M ($6.1M)
2025-01-06	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.1M	¥1,328	-34.0%	¥8M ($51K)
2025-01-06	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	2.8K	¥1,328	+34.0%	¥4M ($24K)

Showing the 50 most recent of 200 filings.

Frequently asked questions

Who has been buying Hokko Chemical Industry Co., Ltd. stock?: 12 distinct investors have filed 73 disclosed large-shareholding filings in Hokko Chemical Industry Co., Ltd. (4992), most recently on 2025-12-08. 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 Hokko Chemical Industry Co., Ltd. have?: Hokko Chemical Industry Co., Ltd. has 73 buy-side and 68 sell-side disclosures on record, covering ¥20.7B ($133.6M) in total reported value, spanning 2021-03-22 to 2025-12-08.
Where does StockDrifts get Hokko Chemical Industry 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 Hokko Chemical Industry Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.