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Asteria Corporation 3853

Company
アステリア株式会社Asteria Corporation
Investors
3
Buys
5
Total Value
¥513M ($3.3M)
Avg Return
+7.48%
Last Filing
2025-10-07

Asteria Corporation (3853) has 5 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥513M ($3.3M) in reported transaction value. The earliest filing StockDrifts holds for Asteria Corporation is dated 2025-09-19; the most recent is 2025-10-07. Across these filings the average return since disclosure is +7.48%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-10-07BUYunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other178.2K¥1,294-14.1%¥231M ($1.5M)
2025-10-07SELLunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other213.0K¥1,294+14.1%¥527M ($3.4M)
2025-10-07BUYunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other297.7K¥1,294-14.1%¥2M ($15K)
2025-09-19BUYunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other800¥1,731-35.8%¥1M ($9K)
2025-09-19BUYunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other295.2K¥1,731-35.8%¥511M ($3.3M)
2025-09-19BUYunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other620.9K¥1,731-35.8%¥1.1B ($6.9M)

Frequently asked questions

Who has been buying Asteria Corporation stock?
3 distinct investors have filed 5 disclosed large-shareholding filings in Asteria Corporation (3853), most recently on 2025-10-07. 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 Asteria Corporation have?
Asteria Corporation has 5 buy-side and 1 sell-side disclosures on record, covering ¥513M ($3.3M) in total reported value, spanning 2025-09-19 to 2025-10-07.
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.