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Medical Net, Inc. 3645

Company
株式会社メディカルネットMedical Net, Inc.
Investors
3
Buys
7
Total Value
¥317M ($2.0M)
Avg Return
-18.61%
Last Filing
2025-10-31

Medical Net, Inc. (3645) has 7 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥317M ($2.0M) in reported transaction value. The earliest filing StockDrifts holds for Medical Net, Inc. is dated 2021-07-01; the most recent is 2025-10-31. 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 -18.61%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-10-31BUYnegotiated
平川 大
Hirakawa Dai
activist886.5K¥306-1.3%¥32M ($208K)
2025-10-31BUYMarket Buy
平川 大
Hirakawa Dai
activist886.5K¥306-1.3%¥32M ($208K)
2024-12-19SELLunknown
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other451.6K¥311+2.9%¥64M ($415K)
2024-10-21BUYunknown
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other658.2K¥327-7.7%¥215M ($1.4M)
2024-05-21SELLunknown
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other477.3K¥379+20.3%¥71M ($461K)
2023-11-21BUYMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other665.8K¥364-17.0%¥45M ($293K)
2023-10-19BUYunknown
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other540.6K¥335-9.8%¥181M ($1.2M)
2023-10-05SELLunknown
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other454.1K¥360+16.1%¥49M ($318K)
2023-07-21BUYunknown
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other591.2K¥363-16.8%¥215M ($1.4M)
2022-10-05BUYMarket Buy
平川 裕司
Hirakawa Yuji
activist783.5K¥429-29.6%¥70M ($450K)
2021-09-30BUYMarket Buy
平川 大
Hirakawa Dai
activist780.7K¥581-48.0%¥93M ($602K)
2021-07-01BUYnegotiated
平川 裕司
Hirakawa Yuji
activist310.3K¥660-54.2%¥205M ($1.3M)
2021-07-01BUYnegotiated
平川 裕司
Hirakawa Yuji
activist310.3K¥660-54.2%¥205M ($1.3M)

Frequently asked questions

Who has been buying Medical Net, Inc. stock?
3 distinct investors have filed 7 disclosed large-shareholding filings in Medical Net, Inc. (3645), most recently on 2025-10-31. 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 Medical Net, Inc. have?
Medical Net, Inc. has 7 buy-side and 3 sell-side disclosures on record, covering ¥317M ($2.0M) in total reported value, spanning 2021-07-01 to 2025-10-31.
Where does StockDrifts get Medical Net, 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 Medical Net, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.