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Softmax Co., Ltd 3671

Company
ソフトマックス株式会社Softmax Co., Ltd
Investors
2
Buys
4
Total Value
¥58M ($375K)
Avg Return
+30.50%
Last Filing
2025-09-26

Softmax Co., Ltd (3671) has 4 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥58M ($375K) in reported transaction value. The earliest filing StockDrifts holds for Softmax Co., Ltd is dated 2025-04-18; the most recent is 2025-09-26. Across these filings the average return since disclosure is +30.50%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-09-26BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive1.5M¥368-16.9%¥17M ($108K)
2025-09-26BUYMarket Buy
株式会社EPARK
EPARK , INC.
passive120.0K¥368-16.9%¥44M ($286K)
2025-05-02BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive365.8K¥213.24+43.5%¥14M ($89K)
2025-04-18BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive301.3K¥208.76+46.6%¥63M ($406K)

Frequently asked questions

Who has been buying Softmax Co., Ltd stock?
2 distinct investors have filed 4 disclosed large-shareholding filings in Softmax Co., Ltd (3671), most recently on 2025-09-26. 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 Softmax Co., Ltd have?
Softmax Co., Ltd has 4 buy-side and 0 sell-side disclosures on record, covering ¥58M ($375K) in total reported value, spanning 2025-04-18 to 2025-09-26.
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.