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Asti Corporation 6899

Company
ASTI株式会社Asti Corporation
Investors
2
Buys
3
Total Value
¥71M ($457K)
Avg Return
+17.72%
Last Filing
2025-07-16

Asti Corporation (6899) has 3 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥71M ($457K) in reported transaction value. The earliest filing StockDrifts holds for Asti Corporation is dated 2021-03-22; the most recent is 2025-07-16. 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 +17.72%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-07-16BUYMarket Buy
ASTI共栄会 理事長 渡邊唯志
Tadashi Watanabe
strategic250.9K¥1,802+32.6%¥65M ($421K)
2024-04-22SELLunknown
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other140.3K¥3,215+25.7%¥143M ($921K)
2024-03-07SELLunknown
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other184.7K¥3,525+32.2%¥143M ($925K)
2024-02-07SELLunknown
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other225.6K¥3,260+26.7%¥114M ($733K)
2023-12-22SELLunknown
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other260.3K¥2,939+18.7%¥122M ($784K)
2023-11-08SELLunknown
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other301.6K¥3,645+34.4%¥143M ($924K)
2023-04-07BUYunknown
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other340.9K¥2,832-15.6%¥965M ($6.2M)
2023-02-22BUYMarket Buy
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other340.9K¥2,705-11.7%¥6M ($36K)
2021-03-22BUYMarket Buy
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other338.9K¥1,808.01+32.2%¥86M ($558K)

Frequently asked questions

Who has been buying Asti Corporation stock?
2 distinct investors have filed 3 disclosed large-shareholding filings in Asti Corporation (6899), most recently on 2025-07-16. 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 Asti Corporation have?
Asti Corporation has 3 buy-side and 5 sell-side disclosures on record, covering ¥71M ($457K) in total reported value, spanning 2021-03-22 to 2025-07-16.
Where does StockDrifts get Asti Corporation 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 Asti Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.