Who has been buying Sumitomo Precision Products Co., Ltd. stock?

8 distinct investors have filed 9 disclosed large-shareholding filings in Sumitomo Precision Products Co., Ltd. (6355), most recently on 2023-01-11. 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 Sumitomo Precision Products Co., Ltd. have?

Sumitomo Precision Products Co., Ltd. has 9 buy-side and 4 sell-side disclosures on record, covering ¥12.2B ($78.9M) in total reported value, spanning 2022-07-19 to 2023-01-11.

Where does StockDrifts get Sumitomo Precision Products 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.

Sumitomo Precision Products Co., Ltd. 6355

Company

住友精密工業株式会社Sumitomo Precision Products Co., Ltd.

Investors

Buys

Total Value

¥12.2B ($78.9M)

Avg Return

+8.17%

Last Filing

2023-01-11

Sumitomo Precision Products Co., Ltd. (6355) has 9 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥12.2B ($78.9M) in reported transaction value. The earliest filing StockDrifts holds for Sumitomo Precision Products Co., Ltd. is dated 2022-07-19; the most recent is 2023-01-11. 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 +8.17%, 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
2023-01-11	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	5.2K	¥3,645	+0.0%	¥12M ($76K)
2023-01-11	SELL	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	75.9K	¥3,645	+0.0%	¥2M ($13K)
2023-01-11	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	7.3K	¥3,645	+0.0%	¥27M ($175K)
2023-01-06	SELL	Market Buy	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	15.4K	¥3,640	-0.1%	¥97M ($624K)
2023-01-06	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	148.2K	¥3,640	+0.1%	¥532M ($3.4M)
2023-01-05	BUY	acquisition	住友商事株式会社 SUMITOMO CORPORATION	activist	4.4M	¥3,635	+0.3%	¥10.8B ($69.7M)
2022-12-27	SELL	unknown	日本製鉄株式会社 NIPPON STEEL CORPORATION	unknown	0	¥3,635	-0.3%	¥2.8B ($17.9M)
2022-12-27	SELL	unknown	日鉄精密加工株式会社 Nippon Steel Precision Processing Co., Ltd.	unknown	0	¥3,635	-0.3%	¥7.9B ($51.1M)
2022-12-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	76.5K	¥3,645	+0.0%	¥279M ($1.8M)
2022-12-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	207.8K	¥3,645	+0.0%	¥757M ($4.9M)
2022-12-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	200	¥3,645	+0.0%	¥729K ($5K)
2022-11-17	BUY	negotiated	日鉄精密加工株式会社 Nippon Steel Precision Processing Co., Ltd.	strategic	21.7K	¥3,640	+0.1%	¥79M ($509K)
2022-11-17	BUY	negotiated	日本製鉄株式会社 NIPPON STEEL CORPORATION	strategic	764.9K	¥3,640	+0.1%	¥2.8B ($18.0M)
2022-07-19	BUY	Market Buy	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	42.2K	¥2,669	+36.6%	¥113M ($727K)
2022-07-19	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	225.9K	¥2,669	+36.6%	¥603M ($3.9M)

Frequently asked questions

Who has been buying Sumitomo Precision Products Co., Ltd. stock?: 8 distinct investors have filed 9 disclosed large-shareholding filings in Sumitomo Precision Products Co., Ltd. (6355), most recently on 2023-01-11. 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 Sumitomo Precision Products Co., Ltd. have?: Sumitomo Precision Products Co., Ltd. has 9 buy-side and 4 sell-side disclosures on record, covering ¥12.2B ($78.9M) in total reported value, spanning 2022-07-19 to 2023-01-11.
Where does StockDrifts get Sumitomo Precision Products 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 Sumitomo Precision Products Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.