Who has been buying BLUE INNOVATION Co., Ltd. stock?

5 distinct investors have filed 5 disclosed large-shareholding filings in BLUE INNOVATION Co., Ltd. (5597), most recently on 2025-11-07. 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 BLUE INNOVATION Co., Ltd. have?

BLUE INNOVATION Co., Ltd. has 5 buy-side and 11 sell-side disclosures on record, covering ¥4.2B ($27.0M) in total reported value, spanning 2023-12-19 to 2025-11-07.

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.

BLUE INNOVATION Co., Ltd. 5597

Company

ブルーイノベーション株式会社BLUE INNOVATION Co., Ltd.

Investors

Buys

Total Value

¥4.2B ($27.0M)

Avg Return

+7.85%

Last Filing

2025-11-07

BLUE INNOVATION Co., Ltd. (5597) has 5 disclosed large-shareholding filings and 11 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥4.2B ($27.0M) in reported transaction value. The earliest filing StockDrifts holds for BLUE INNOVATION Co., Ltd. is dated 2023-12-19; the most recent is 2025-11-07. Across these filings the average return since disclosure is +7.85%, 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
2025-11-07	BUY	Market Buy	シンプレクス・アセット・マネジメント株式会社 Simplex Asset Management Co., Ltd.	passive	417.6K	¥1,804	-	¥753M ($4.9M)
2025-10-30	BUY	Market Buy	シンプレクス・キャピタル・インベストメント株式会社 Simplex Capital Investment	passive	412.3K	¥1,992	-29.4%	¥821M ($5.3M)
2024-05-14	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	156.3K	¥1,437	+2.2%	¥92M ($595K)
2024-05-13	BUY	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	220.6K	¥1,404	-	¥87M ($560K)
2024-05-13	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	220.6K	¥1,404	-0.1%	¥87M ($560K)
2024-05-10	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	282.5K	¥1,359	-3.5%	¥81M ($522K)
2024-05-07	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	342.1K	¥1,408	+0.1%	¥63M ($408K)
2024-04-24	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	386.8K	¥1,214	-15.8%	¥62M ($398K)
2024-04-17	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	437.6K	¥1,130	-24.4%	¥51M ($327K)
2024-04-11	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	482.5K	¥1,220	-15.3%	¥62M ($397K)
2024-04-08	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	533.0K	¥1,281	-9.8%	¥69M ($446K)
2024-04-03	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	586.8K	¥1,284	-9.5%	¥69M ($444K)
2024-03-28	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	640.6K	¥1,141	-23.2%	¥53M ($342K)
2024-03-21	SELL	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	686.8K	¥1,192	-17.9%	¥49M ($315K)
2023-12-19	BUY	unknown	熊田貴之 kumada takayuki	activist	1.5M	¥1,518	-7.4%	¥2.3B ($14.6M)
2023-12-19	BUY	unknown	熊田貴之 kumada takayuki	activist	1.5M	¥1,518	-7.4%	¥2.3B ($14.6M)
2023-12-19	BUY	Market Buy	日本ベンチャーキャピタル株式会社 Nippon Venture Capital Co., Ltd.	passive	707.8K	¥1,518	-7.4%	¥1.1B ($6.9M)
2023-12-19	BUY	unknown	熊田明日香 Asuka Kumada	activist	21.3K	¥1,518	-7.4%	¥32M ($209K)

Frequently asked questions

Who has been buying BLUE INNOVATION Co., Ltd. stock?: 5 distinct investors have filed 5 disclosed large-shareholding filings in BLUE INNOVATION Co., Ltd. (5597), most recently on 2025-11-07. 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 BLUE INNOVATION Co., Ltd. have?: BLUE INNOVATION Co., Ltd. has 5 buy-side and 11 sell-side disclosures on record, covering ¥4.2B ($27.0M) in total reported value, spanning 2023-12-19 to 2025-11-07.
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.