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

10 distinct investors have filed 3 disclosed large-shareholding filings in Fukoku Co.,Ltd. (5185), most recently on 2026-01-26. 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 Fukoku Co.,Ltd. have?

Fukoku Co.,Ltd. has 3 buy-side and 20 sell-side disclosures on record, covering ¥4.3B ($27.7M) in total reported value, spanning 2021-05-24 to 2026-01-26.

Where does StockDrifts get Fukoku 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.

Fukoku Co.,Ltd. 5185

Company

株式会社フコクFukoku Co.,Ltd.

Investors

Buys

Total Value

¥4.3B ($27.7M)

Avg Return

+2.78%

Last Filing

2026-01-26

Fukoku Co.,Ltd. (5185) has 3 disclosed large-shareholding filings and 20 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥4.3B ($27.7M) in reported transaction value. The earliest filing StockDrifts holds for Fukoku Co.,Ltd. is dated 2021-05-24; the most recent is 2026-01-26. 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 +2.78%, 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
2026-08-07	SELL	unknown	SMBC日興証券株式会社	other	6.6K	¥1,992	-3.7%	¥22M ($143K)
2026-08-07	SELL	Market Buy	三井住友DSアセットマネジメント株式会社	passive	824.5K	¥1,992	-3.7%	¥301M ($1.9M)
2026-01-26	BUY	unknown	フコク取引先持株会理事長小菅敏一 Kosuge Toshikazu	strategic	21.2K	¥1,999	-9.0%	¥2.5B ($15.9M)
2026-01-08	SELL	unknown	KAWAMOTO CMK株式会社	other	573.7K	¥1,974	+7.9%	¥1.0B ($6.7M)
2026-01-08	BUY	unknown	河本太郎	other	517.5K	¥1,974	+7.9%	¥941M ($6.1M)
2026-01-08	SELL	unknown	株式会社MWホールディングス	other	426.0K	¥1,974	+7.9%	¥775M ($5.0M)
2026-01-08	BUY	unknown	渡邉文時	other	95.2K	¥1,974	+7.9%	¥173M ($1.1M)
2026-01-08	BUY	unknown	渡邉まり	other	717.3K	¥1,974	+7.9%	¥1.3B ($8.4M)
2026-01-05	BUY	unknown	J河本株式会社 JKawamoto Co.,Ltd	unknown	0	¥1,945	-6.5%	¥2.1B ($13.9M)
2026-01-05	BUY	unknown	J河本株式会社 JKawamoto Co.,Ltd	unknown	0	¥1,945	-6.5%	¥2.1B ($13.9M)
2026-01-05	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	unknown	0	¥1,945	+6.5%	¥2.1B ($13.9M)
2025-12-09	BUY	unknown	KAWAMOTO CMK株式会社	other	1.2M	¥1,806	-0.7%	¥2.1B ($13.8M)
2025-12-09	BUY	unknown	河本太郎	other	517.5K	¥1,806	-0.7%	¥941M ($6.1M)
2025-12-09	BUY	unknown	株式会社MWホールディングス	other	626.0K	¥1,806	-0.7%	¥1.1B ($7.3M)
2025-12-09	BUY	unknown	渡邉文時	other	95.2K	¥1,806	-0.7%	¥173M ($1.1M)
2025-12-09	BUY	unknown	渡邉まり	other	717.3K	¥1,806	-0.7%	¥1.3B ($8.4M)
2025-12-08	BUY	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.1M	¥1,834	-0.8%	¥2.0B ($13.1M)
2025-11-07	SELL	unknown	KAWAMOTO CMK株式会社 KAWAMOTO CMK Co., Ltd.	other	1.2M	¥1,800	-1.1%	¥244M ($1.6M)
2025-11-07	BUY	unknown	株式会社MWホールディングス MW Holdings Co., Ltd.	other	626.0K	¥1,800	+1.1%	¥1.1B ($7.3M)
2025-11-07	BUY	unknown	渡邉文時 Fumitoki Watanabe	other	95.2K	¥1,800	+1.1%	¥171M ($1.1M)
2025-11-07	BUY	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.1M	¥1,800	+1.1%	¥133M ($859K)
2025-11-07	BUY	unknown	河本太郎 Kawamoto Taro	other	517.5K	¥1,800	+1.1%	¥931M ($6.0M)
2025-11-07	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.1M	¥1,800	-1.1%	¥133M ($859K)
2025-11-07	BUY	unknown	渡邉まり Mari Watanabe	other	717.3K	¥1,800	+1.1%	¥1.3B ($8.3M)
2025-11-06	BUY	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.1M	¥1,829	-0.6%	¥135M ($873K)
2025-11-06	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.1M	¥1,829	+0.6%	¥19M ($125K)
2025-08-15	SELL	unknown	KAWAMOTO CMK株式会社 KAWAMOTO CMK Co., Ltd.	other	1.3M	¥1,834	+0.8%	¥336M ($2.2M)
2025-08-15	BUY	unknown	河本太郎 Kawamoto Taro	other	517.5K	¥1,834	-0.8%	¥949M ($6.1M)
2025-07-22	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.2M	¥1,677	-8.5%	¥310M ($2.0M)
2025-06-20	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	19.6K	¥1,642	+10.8%	¥32M ($208K)
2025-06-20	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.1M	¥1,642	+10.8%	¥301M ($1.9M)
2024-12-05	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	897.0K	¥1,707	+6.6%	¥1.5B ($9.9M)
2024-11-27	SELL	unknown	KAWAMOTO CMK株式会社 KAWAMOTO CMK Co., Ltd.	other	1.5M	¥1,720	-5.8%	¥306M ($2.0M)
2024-11-27	BUY	unknown	河本太郎 Kawamoto Taro	other	517.5K	¥1,720	+5.8%	¥890M ($5.7M)
2024-07-08	BUY	unknown	河本太郎 Kawamoto Taro	other	517.5K	¥2,194	-17.1%	¥1.1B ($7.3M)
2024-07-08	SELL	unknown	KAWAMOTO CMK株式会社 KAWAMOTO CMK Co., Ltd.	other	1.7M	¥2,194	+17.1%	¥382M ($2.5M)
2024-03-01	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.4M	¥1,670	-8.9%	¥306M ($2.0M)
2024-02-19	SELL	unknown	KAWAMOTO CMK株式会社 KAWAMOTO CMK Co., Ltd.	other	1.8M	¥1,550	-17.4%	¥229M ($1.5M)
2024-02-19	SELL	unknown	河本千佳子 Chikako Kawamoto	other	0	¥1,550	-17.4%	¥44M ($282K)
2024-02-19	BUY	unknown	河本太郎 Kawamoto Taro	other	517.5K	¥1,550	+17.4%	¥802M ($5.2M)
2023-05-31	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.5M	¥1,139	-59.7%	¥205M ($1.3M)
2023-04-17	SELL	unknown	KAWAMOTO CMK株式会社 KAWAMOTO CMK Co., Ltd.	other	2.0M	¥1,024	-77.6%	¥182M ($1.2M)
2023-04-17	BUY	unknown	河本千佳子 Chikako Kawamoto	other	29.0K	¥1,024	+77.6%	¥30M ($191K)
2023-04-17	BUY	unknown	河本太郎 Kawamoto Taro	other	517.5K	¥1,024	+77.6%	¥530M ($3.4M)
2022-10-28	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.7M	¥1,018	-78.7%	¥122M ($786K)
2022-09-07	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.8M	¥992	-83.4%	¥180M ($1.2M)
2022-09-07	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.8M	¥992	-83.4%	¥180M ($1.2M)
2022-09-07	BUY	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.8M	¥992	+83.4%	¥180M ($1.2M)
2022-09-07	BUY	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	1.8M	¥992	+83.4%	¥180M ($1.2M)
2022-02-25	SELL	unknown	J河本株式会社 JKawamoto Co.,Ltd	other	2.0M	¥970	-87.5%	¥483M ($3.1M)

Showing the 50 most recent of 55 filings.

Frequently asked questions

Who has been buying Fukoku Co.,Ltd. stock?: 10 distinct investors have filed 3 disclosed large-shareholding filings in Fukoku Co.,Ltd. (5185), most recently on 2026-01-26. 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 Fukoku Co.,Ltd. have?: Fukoku Co.,Ltd. has 3 buy-side and 20 sell-side disclosures on record, covering ¥4.3B ($27.7M) in total reported value, spanning 2021-05-24 to 2026-01-26.
Where does StockDrifts get Fukoku 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 Fukoku Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.