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Chi-technology Co.,Ltd. 5581

Company
株式会社カイテクノロジーChi-technology Co.,Ltd.
Investors
4
Buys
10
Total Value
¥774M ($5.0M)
Avg Return
-12.96%
Last Filing
2025-11-05

Chi-technology Co.,Ltd. (5581) has 10 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥774M ($5.0M) in reported transaction value. The earliest filing StockDrifts holds for Chi-technology Co.,Ltd. is dated 2023-07-06; the most recent is 2025-11-05. 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 -12.96%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-11-05BUYunknown
勝屋 奈緒子
Naoko Katsuya
activist40.0K¥226-14.6%¥27M ($173K)
2025-11-05BUYunknown
株式会社リーブル
Libre Co., Ltd.
activist3.4M¥226-14.6%¥1M ($7K)
2025-11-05BUYunknown
勝屋 奈緒子
Naoko Katsuya
activist40.0K¥226-14.6%¥27M ($173K)
2025-11-05BUYunknown
株式会社リーブル
Libre Co., Ltd.
activist3.4M¥226-14.6%¥1M ($7K)
2025-11-05BUYunknown
勝屋 嘉恭
Katsuya Yoshiyasu
activist520.0K¥226-14.6%¥3M ($18K)
2025-11-05BUYunknown
勝屋 嘉恭
Katsuya Yoshiyasu
activist520.0K¥226-14.6%¥3M ($18K)
2025-11-04SELLMarket Buy
日本アジア投資株式会社
Japan Asia Investment Co., Ltd.
passive0¥226+14.6%¥50M ($321K)
2023-07-11BUYacquisition
日本アジア投資株式会社
Japan Asia Investment Co., Ltd.
passive220.0K¥215.639-10.5%¥47M ($306K)
2023-07-11BUYMarket Buy
日本アジア投資株式会社
Japan Asia Investment Co., Ltd.
passive220.0K¥215.639-10.5%¥47M ($306K)
2023-07-06BUYunknown
勝屋 奈緒子
Naoko Katsuya
activist160.0K¥215.639-10.5%¥35M ($223K)
2023-07-06BUYunknown
株式会社リーブル
Libre Co., Ltd.
activist3.4M¥215.639-10.5%¥723M ($4.7M)
2023-07-06BUYunknown
勝屋 嘉恭
Katsuya Yoshiyasu
activist533.4K¥215.639-10.5%¥115M ($742K)

Frequently asked questions

Who has been buying Chi-technology Co.,Ltd. stock?
4 distinct investors have filed 10 disclosed large-shareholding filings in Chi-technology Co.,Ltd. (5581), most recently on 2025-11-05. 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 Chi-technology Co.,Ltd. have?
Chi-technology Co.,Ltd. has 10 buy-side and 1 sell-side disclosures on record, covering ¥774M ($5.0M) in total reported value, spanning 2023-07-06 to 2025-11-05.
Where does StockDrifts get Chi-technology 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 Chi-technology Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.