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Iida Group Holdings Co., Ltd. 3291

Company
飯田グループホールディングス株式会社Iida Group Holdings Co., Ltd.
Investors
2
Buys
5
Total Value
¥3.4B ($22.0M)
Avg Return
+5.10%
Last Filing
2026-04-10

Iida Group Holdings Co., Ltd. (3291) has 5 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥3.4B ($22.0M) in reported transaction value. The earliest filing StockDrifts holds for Iida Group Holdings Co., Ltd. is dated 2022-04-01; the most recent is 2026-04-10. 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 +5.10%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-04-10BUYacquisition
西河 洋一
Yoichi Nishikawa
activist27.9M¥2,460.5-11.3%¥483M ($3.1M)
2026-04-10BUYacquisition
西河 洋一
Yoichi Nishikawa
activist27.9M¥2,460.5-11.3%¥483M ($3.1M)
2025-03-21BUYsubscription
シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP)
Silchester International Investors LLP
activist27.0M¥2,342-0.6%¥3.4B ($22.0M)
2023-08-21BUYsubscription
シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP)
Silchester International Investors LLP
activist25.5M¥2,317.5+0.4%¥6.6B ($42.3M)
2022-11-08BUYsubscription
シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP)
Silchester International Investors LLP
activist23.4M¥2,093+11.2%¥6.3B ($40.5M)
2022-08-01BUYsubscription
シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP)
Silchester International Investors LLP
activist20.4M¥2,218+4.9%¥6.4B ($41.3M)
2022-04-01BUYsubscription
シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP)
Silchester International Investors LLP
activist17.8M¥2,125+9.5%¥6.6B ($42.8M)

Frequently asked questions

Who has been buying Iida Group Holdings Co., Ltd. stock?
2 distinct investors have filed 5 disclosed large-shareholding filings in Iida Group Holdings Co., Ltd. (3291), most recently on 2026-04-10. 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 Iida Group Holdings Co., Ltd. have?
Iida Group Holdings Co., Ltd. has 5 buy-side and 0 sell-side disclosures on record, covering ¥3.4B ($22.0M) in total reported value, spanning 2022-04-01 to 2026-04-10.
Where does StockDrifts get Iida Group Holdings 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 Iida Group Holdings Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.