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OPEN Group, Inc. 6572

Company
オープングループ株式会社OPEN Group, Inc.
Investors
2
Buys
0
Total Value
—
Avg Return
—
Last Filing
2025-12-18

OPEN Group, Inc. (6572) has 0 disclosed large-shareholding filings and 6 disclosed disposals on record, filed by 2 distinct investors. The earliest filing StockDrifts holds for OPEN Group, Inc. is dated 2021-05-11; the most recent is 2025-12-18.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-09-01BUYunknown
有限会社オフィス高橋
activist4.8M¥292-¥1.4B ($9.0M)
2026-09-01SELLunknown
髙橋 知道
activist18.9M¥292+6.8%¥1.4B ($9.0M)
2026-07-24SELLunknown
髙橋 知道
TAKAHASHI TOMOMICHI
activist23.7M¥241-12.9%¥113M ($728K)
2025-12-18BUYunknown
大角 暢之
Nobuyuki Osumi
other6.7M¥323--
2025-06-20SELLunknown
大角 暢之
Nobuyuki Osumi
other6.7M¥336+19.1%¥4M ($27K)
2024-08-29SELLunknown
大角 暢之
Nobuyuki Osumi
other6.7M¥224-21.4%¥6M ($36K)
2023-09-27SELLunknown
髙橋 知道
Tomomichi Takahashi
activist23.7M¥333+18.3%¥14M ($93K)
2023-09-27SELLunknown
髙橋 知道
Tomomichi Takahashi
activist23.7M¥333+18.3%¥1.6B ($10.1M)
2023-01-10SELLunknown
大角 暢之
Nobuyuki Osumi
other6.7M¥263-3.4%¥41M ($263K)
2021-10-11BUYunknown
大角 暢之
Nobuyuki Osumi
other6.7M¥581--
2021-05-11SELLunknown
大角 暢之
Nobuyuki Osumi
other6.7M¥715+62.0%¥87M ($558K)

Frequently asked questions

Who has been buying OPEN Group, Inc. stock?
2 distinct investors have filed 0 disclosed large-shareholding filings in OPEN Group, Inc. (6572), most recently on 2025-12-18. 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 OPEN Group, Inc. have?
OPEN Group, Inc. has 0 buy-side and 6 sell-side disclosures on record, spanning 2021-05-11 to 2025-12-18.
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.