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Brains Technology, Inc. 4075

Company
ブレインズテクノロジー株式会社Brains Technology, Inc.
Investors
3
Buys
3
Total Value
¥10.1B ($65.0M)
Avg Return
-53.89%
Last Filing
2025-06-27

Brains Technology, Inc. (4075) has 3 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥10.1B ($65.0M) in reported transaction value. The earliest filing StockDrifts holds for Brains Technology, Inc. is dated 2021-08-02; the most recent is 2025-06-27. 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 -53.89%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-06-27SELLunknown
中澤 宣貴
Nobutaka Nakazawa
strategic700.0K¥803-59.9%¥49M ($317K)
2024-01-26SELLMarket Buy
日本ベンチャーキャピタル株式会社
Nippon Venture Capital Co., Ltd.
passive98.5K¥1,325+3.1%¥282M ($1.8M)
2023-12-28SELLMarket Buy
日本ベンチャーキャピタル株式会社
Nippon Venture Capital Co., Ltd.
passive276.4K¥583-120.2%¥20M ($130K)
2023-12-28BUYMarket Buy
日本ベンチャーキャピタル株式会社
Nippon Venture Capital Co., Ltd.
passive276.4K¥583+120.2%¥20M ($130K)
2021-09-01SELLunknown
齋藤 佐和子
saito sawako
strategic2.7M¥2,602+50.6%¥320M ($2.1M)
2021-08-04BUYunknown
中澤 宣貴
Nakazawa Nobutaka
strategic700.0K¥2,600-50.6%¥1.8B ($11.7M)
2021-08-04BUYunknown
齋藤 佐和子
Saito Sawako
strategic2.8M¥2,600-50.6%¥7.3B ($47.0M)
2021-08-02BUYMarket Buy
日本ベンチャーキャピタル株式会社
Nippon Venture Capital Co., Ltd.
passive300.0K¥3,245-60.4%¥974M ($6.3M)

Frequently asked questions

Who has been buying Brains Technology, Inc. stock?
3 distinct investors have filed 3 disclosed large-shareholding filings in Brains Technology, Inc. (4075), most recently on 2025-06-27. 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 Brains Technology, Inc. have?
Brains Technology, Inc. has 3 buy-side and 4 sell-side disclosures on record, covering ¥10.1B ($65.0M) in total reported value, spanning 2021-08-02 to 2025-06-27.
Where does StockDrifts get Brains Technology, Inc. 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 Brains Technology, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.