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Nishikawa Rubber Co., Ltd. 5161

Company
西川ゴム工業株式会社Nishikawa Rubber Co., Ltd.
Investors
7
Buys
2
Total Value
¥2.6B ($16.8M)
Avg Return
+199.79%
Last Filing
2025-09-12

Nishikawa Rubber Co., Ltd. (5161) has 2 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥2.6B ($16.8M) in reported transaction value. The earliest filing StockDrifts holds for Nishikawa Rubber Co., Ltd. is dated 2021-05-19; the most recent is 2025-09-12. Across these filings the average return since disclosure is +199.79%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-09-12SELLMarket Buy
Be Brave株式会社 代表取締役 泉田和人
Be Brave Inc.
activist453.5K¥3,090-12.8%¥4.8B ($30.9M)
2025-02-17BUYMarket Buy
Be Brave株式会社 代表取締役 泉田和人
Be Brave Inc.
activist1.0M¥2,437.5+43.0%¥2.4B ($15.7M)
2023-11-22SELLunknown
西川 正洋
Masahiro Nishikawa
activist1.0M¥757.5-360.1%¥106M ($684K)
2023-11-22BUYunknown
西川 明美
Akemi Nishikawa
strategic43.6K¥757.5--
2023-11-22SELLunknown
株式会社大宮クラブ
Omiya Club Co., Ltd.
strategic199.6K¥757.5-360.1%¥61M ($391K)
2023-11-22BUYunknown
西和興産株式会社
Seiwa Kosan Co., Ltd.
strategic287.6K¥757.5--
2023-11-22BUYunknown
中村 暢子
Nobuko Nakamura
strategic93.8K¥757.5--
2021-05-19BUYunknown
公益財団法人西川記念財団
Nishikawa Memorial Foundation
strategic1.4M¥723.5-¥166M ($1.1M)
2021-05-19BUYMarket Buy
公益財団法人西川記念財団
Nishikawa Memorial Foundation
strategic1.4M¥723.5+381.7%¥166M ($1.1M)

Frequently asked questions

Who has been buying Nishikawa Rubber Co., Ltd. stock?
7 distinct investors have filed 2 disclosed large-shareholding filings in Nishikawa Rubber Co., Ltd. (5161), most recently on 2025-09-12. 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 Nishikawa Rubber Co., Ltd. have?
Nishikawa Rubber Co., Ltd. has 2 buy-side and 3 sell-side disclosures on record, covering ¥2.6B ($16.8M) in total reported value, spanning 2021-05-19 to 2025-09-12.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.