Who has been buying Katsuragawa Electric Co., Ltd. stock?

12 distinct investors have filed 10 disclosed large-shareholding filings in Katsuragawa Electric Co., Ltd. (6416), most recently on 2025-10-09. 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 Katsuragawa Electric Co., Ltd. have?

Katsuragawa Electric Co., Ltd. has 10 buy-side and 11 sell-side disclosures on record, covering ¥241M ($1.6M) in total reported value, spanning 2021-11-30 to 2025-10-09.

Where does StockDrifts get Katsuragawa Electric 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.

Katsuragawa Electric Co., Ltd. 6416

Company

桂川電機株式会社Katsuragawa Electric Co., Ltd.

Investors

Buys

Total Value

¥241M ($1.6M)

Avg Return

+9.81%

Last Filing

2025-10-09

Katsuragawa Electric Co., Ltd. (6416) has 10 disclosed large-shareholding filings and 11 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥241M ($1.6M) in reported transaction value. The earliest filing StockDrifts holds for Katsuragawa Electric Co., Ltd. is dated 2021-11-30; the most recent is 2025-10-09. 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 +9.81%, 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
2025-10-09	BUY	acquisition	株式会社Lemon Lemon Co., Ltd.	activist	1.5M	¥960	-0.2%	¥93M ($600K)
2025-10-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	2.8K	¥955	-0.3%	¥47M ($300K)
2025-10-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.1K	¥955	-0.3%	¥43M ($278K)
2025-10-06	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	0	¥955	-0.3%	¥96M ($618K)
2025-09-29	BUY	unknown	本多容和 Masakazu Honda	unknown	0	¥956	+0.2%	¥75M ($481K)
2025-09-29	BUY	unknown	本多容和 Masakazu Honda	unknown	0	¥956	+0.2%	-
2025-09-25	SELL	unknown	渡邉佑子 Yuko Watanabe	other	0	¥948	-1.1%	¥250M ($1.6M)
2025-09-25	SELL	unknown	三桂精機株式会社 Sankei Seiki Co., Ltd.	other	0	¥948	-1.1%	¥1.0B ($6.5M)
2025-09-25	SELL	unknown	富士電化工業株式会社 Fuji Denka Kogyo Co., Ltd.	other	0	¥948	-1.1%	¥15M ($97K)
2025-09-25	SELL	unknown	三桂興産株式会社 Sankatsura Kosan Co., Ltd.	other	0	¥948	-1.1%	¥64M ($410K)
2025-09-25	SELL	unknown	株式会社三桂製作所 Mitsura Seisakusho Co., Ltd.	other	0	¥948	-1.1%	¥490M ($3.2M)
2025-09-25	SELL	unknown	渡邉正禮 Masayoshi Watanabe	other	0	¥948	-1.1%	¥142M ($915K)
2025-09-25	BUY	acquisition	株式会社Lemon Lemon Co., Ltd.	activist	1.4M	¥948	+1.1%	¥1.4B ($8.8M)
2025-09-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	51.5K	¥952	+0.6%	¥49M ($316K)
2025-09-22	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	48.3K	¥952	+0.6%	¥46M ($297K)
2025-09-19	BUY	Market Buy	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	100.3K	¥953	+0.5%	¥16M ($106K)
2025-09-04	BUY	Market Buy	本多容和 Masakazu Honda	passive	78.0K	¥956	+0.2%	¥75M ($481K)
2025-09-04	BUY	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	83.0K	¥956	+0.2%	¥79M ($512K)
2025-09-04	BUY	Market Buy	本多容和 Masakazu Honda	passive	78.0K	¥956	+0.2%	¥75M ($481K)
2025-08-12	BUY	unknown	渡邉佑子 Yuko Watanabe	strategic	2.6K	¥873	+9.7%	¥2M ($15K)
2025-08-12	BUY	unknown	三桂精機株式会社 Sankei Seiki Co., Ltd.	strategic	10.5K	¥873	+9.7%	¥9M ($59K)
2025-08-12	BUY	unknown	富士電化工業株式会社 Fuji Denka Kogyo Co., Ltd.	strategic	15.9K	¥873	+9.7%	¥14M ($90K)
2025-08-12	BUY	unknown	三桂興産株式会社 Sankatsura Kosan Co., Ltd.	strategic	67.1K	¥873	+9.7%	¥59M ($378K)
2025-08-12	BUY	unknown	株式会社三桂製作所 Mitsura Seisakusho Co., Ltd.	strategic	517.0K	¥873	+9.7%	¥451M ($2.9M)
2025-08-12	BUY	unknown	渡邉正禮 Masayoshi Watanabe	strategic	149.7K	¥873	+9.7%	¥131M ($843K)
2022-07-12	SELL	Market Buy	秋元利規 Toshinori AKIMOTO	passive	30.0K	¥729	-31.4%	¥82M ($527K)
2022-07-11	SELL	Market Buy	秋元利規 Toshinori AKIMOTO	passive	30.0K	¥735	-30.3%	¥82M ($532K)
2022-05-06	BUY	Market Buy	秋元利規 Toshinori AKIMOTO	passive	142.0K	¥660	+45.1%	¥11M ($74K)
2021-11-30	BUY	Market Buy	秋元利規 Toshinori AKIMOTO	passive	124.6K	¥640	+49.7%	¥20M ($126K)

Frequently asked questions

Who has been buying Katsuragawa Electric Co., Ltd. stock?: 12 distinct investors have filed 10 disclosed large-shareholding filings in Katsuragawa Electric Co., Ltd. (6416), most recently on 2025-10-09. 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 Katsuragawa Electric Co., Ltd. have?: Katsuragawa Electric Co., Ltd. has 10 buy-side and 11 sell-side disclosures on record, covering ¥241M ($1.6M) in total reported value, spanning 2021-11-30 to 2025-10-09.
Where does StockDrifts get Katsuragawa Electric 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 Katsuragawa Electric Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.