Who has been buying Kyowa Electronic Instruments Co., Ltd. stock?

8 distinct investors have filed 8 disclosed large-shareholding filings in Kyowa Electronic Instruments Co., Ltd. (6853), most recently on 2025-09-29. 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 Kyowa Electronic Instruments Co., Ltd. have?

Kyowa Electronic Instruments Co., Ltd. has 8 buy-side and 6 sell-side disclosures on record, covering ¥220M ($1.4M) in total reported value, spanning 2021-09-14 to 2025-09-29.

Where does StockDrifts get Kyowa Electronic Instruments 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.

Kyowa Electronic Instruments Co., Ltd. 6853

Company

株式会社共和電業Kyowa Electronic Instruments Co., Ltd.

Investors

Buys

Total Value

¥220M ($1.4M)

Avg Return

+71.62%

Last Filing

2025-09-29

Kyowa Electronic Instruments Co., Ltd. (6853) has 8 disclosed large-shareholding filings and 6 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥220M ($1.4M) in reported transaction value. The earliest filing StockDrifts holds for Kyowa Electronic Instruments Co., Ltd. is dated 2021-09-14; the most recent is 2025-09-29. 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 +71.62%, 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
2026-06-16	SELL	unknown	株式会社UH Partners 2	unknown	0	¥880	+11.8%	¥171M ($1.1M)
2026-06-16	SELL	Market Buy	光通信株式会社	passive	1.8M	¥880	+11.8%	¥62M ($398K)
2025-09-29	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	207.4K	¥700	+5.4%	¥145M ($937K)
2025-09-29	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	2.0M	¥700	+5.4%	¥1.4B ($9.2M)
2025-08-01	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	2.0M	¥545	+35.4%	¥42M ($273K)
2025-08-01	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	207.4K	¥545	+35.4%	¥113M ($729K)
2025-05-20	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	2.0M	¥526	+40.3%	¥150M ($971K)
2024-08-22	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.7M	¥398	+85.4%	¥115M ($742K)
2024-01-17	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.4M	¥400	+84.5%	¥557M ($3.6M)
2023-12-04	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	497.6K	¥431	-71.2%	¥116M ($749K)
2023-12-04	SELL	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	63.3K	¥431	-71.2%	¥20M ($131K)
2023-12-04	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	550.0K	¥431	+71.2%	¥2M ($15K)
2022-06-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	440.9K	¥319	-131.3%	¥81M ($520K)
2022-06-22	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	801.0K	¥319	-131.3%	¥16M ($104K)
2022-03-23	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	692.9K	¥375	-96.8%	¥120M ($774K)
2022-03-23	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	850.3K	¥375	+96.8%	¥319M ($2.1M)
2022-01-07	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	550.0K	¥387	+90.7%	¥213M ($1.4M)
2022-01-07	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	112.5K	¥387	+90.7%	¥17M ($112K)
2022-01-07	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	775.8K	¥387	-90.7%	¥118M ($764K)
2021-11-17	BUY	Market Buy	アジア電子工業株式会社 ASIAELECTRONICS IND.CO.,LTD.	passive	1.4M	¥402	+83.6%	¥7M ($44K)
2021-11-17	BUY	Market Buy	アジア電子工業株式会社 ASIAELECTRONICS IND.CO.,LTD.	passive	1.7M	¥402	+83.6%	¥114M ($735K)
2021-09-14	BUY	Market Buy	アジア電子工業株式会社 ASIA ELECTRONICS IND.CO.,LTD.	passive	1.4M	¥406	+81.8%	¥580M ($3.7M)
2021-09-14	BUY	Market Buy	アジア電子工業株式会社 ASIA ELECTRONICS IND.CO.,LTD.	passive	1.4M	¥406	+81.8%	¥580M ($3.7M)

Frequently asked questions

Who has been buying Kyowa Electronic Instruments Co., Ltd. stock?: 8 distinct investors have filed 8 disclosed large-shareholding filings in Kyowa Electronic Instruments Co., Ltd. (6853), most recently on 2025-09-29. 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 Kyowa Electronic Instruments Co., Ltd. have?: Kyowa Electronic Instruments Co., Ltd. has 8 buy-side and 6 sell-side disclosures on record, covering ¥220M ($1.4M) in total reported value, spanning 2021-09-14 to 2025-09-29.
Where does StockDrifts get Kyowa Electronic Instruments 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 Kyowa Electronic Instruments Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.