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.

International Conglomerate of Distribution for Automobile Holdings Co., Ltd. 3184

Company

ICDAホールディングス株式会社International Conglomerate of Distribution for Automobile Holdings Co., Ltd.

Investors

Buys

Total Value

¥175M ($1.1M)

Avg Return

+57.91%

Last Filing

2025-12-02

International Conglomerate of Distribution for Automobile Holdings Co., Ltd. (3184) has 4 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥175M ($1.1M) in reported transaction value. The earliest filing StockDrifts holds for International Conglomerate of Distribution for Automobile Holdings Co., Ltd. is dated 2023-05-01; the most recent is 2025-12-02. Across these filings the average return since disclosure is +57.91%, 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
2026-05-25	BUY	Market Buy	株式会社フラクタル・ビジネス	activist	119.2K	¥4,360	-	-
2026-05-25	BUY	Market Buy	奥村学	activist	80.6K	¥4,360	-	¥95M ($614K)
2025-12-02	BUY	unknown	株式会社フラクタル・ビジネス	other	119.2K	¥4,350	-	¥2M ($12K)
2025-12-02	BUY	unknown	奥村学	other	58.8K	¥4,350	-	¥94M ($607K)
2025-12-02	BUY	unknown	株式会社フラクタル・ビジネス	other	119.2K	¥4,350	-	¥2M ($12K)
2025-12-02	BUY	unknown	奥村学	other	58.8K	¥4,350	-	¥94M ($607K)
2025-04-08	BUY	unknown	株式会社フラクタル・ビジネス Fractal Business Inc.	other	118.9K	¥3,150	-	¥51M ($329K)
2025-04-08	BUY	unknown	奥村学 Manabu Okumura	other	37.2K	¥3,150	-	¥17M ($107K)
2024-06-10	BUY	unknown	株式会社フラクタル・ビジネス Fractal Business Inc.	other	102.7K	¥2,810	-	¥22M ($141K)
2024-06-10	BUY	unknown	株式会社フラクタル・ビジネス Fractal Business Inc.	other	102.7K	¥2,810	-	¥22M ($141K)
2024-06-10	BUY	unknown	奥村学 Manabu Okumura	other	32.0K	¥2,810	-	-
2024-06-10	BUY	unknown	奥村学 Manabu Okumura	other	32.0K	¥2,810	-	-
2024-01-26	BUY	unknown	株式会社フラクタル・ビジネス Fractal Business Inc.	other	95.0K	¥2,888	-	¥60M ($387K)
2024-01-26	BUY	unknown	奥村学 Manabu Okumura	other	30.3K	¥2,888	-	¥4M ($23K)
2024-01-26	BUY	unknown	奥村学 Manabu Okumura	other	32.0K	¥2,888	-	¥1M ($8K)
2024-01-26	BUY	unknown	株式会社フラクタル・ビジネス Fractal Business Inc.	other	96.7K	¥2,888	-	¥65M ($419K)
2023-05-01	BUY	unknown	株式会社フラクタル・ビジネス Fractal Business Inc.	other	74.1K	¥2,780	+48.9%	¥206M ($1.3M)
2023-05-01	BUY	unknown	株式会社フラクタル・ビジネス Fractal Business Inc.	other	74.1K	¥2,780	+48.9%	¥206M ($1.3M)
2023-05-01	BUY	unknown	奥村学 Manabu Okumura	other	31.5K	¥2,780	+48.9%	¥88M ($565K)
2023-05-01	BUY	unknown	奥村学 Manabu Okumura	other	31.5K	¥2,780	+48.9%	¥88M ($565K)

Frequently asked questions

Who has been buying International Conglomerate of Distribution for Automobile Holdings Co., Ltd. stock?: 2 distinct investors have filed 4 disclosed large-shareholding filings in International Conglomerate of Distribution for Automobile Holdings Co., Ltd. (3184), most recently on 2025-12-02. 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 International Conglomerate of Distribution for Automobile Holdings Co., Ltd. have?: International Conglomerate of Distribution for Automobile Holdings Co., Ltd. has 4 buy-side and 0 sell-side disclosures on record, covering ¥175M ($1.1M) in total reported value, spanning 2023-05-01 to 2025-12-02.
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.