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Cyfuse Biomedical K.K. 4892

Company
株式会社サイフューズCyfuse Biomedical K.K.
Investors
9
Buys
24
Total Value
¥4.0B ($25.6M)
Avg Return
-33.44%
Last Filing
2026-05-12

Cyfuse Biomedical K.K. (4892) has 24 disclosed large-shareholding filings and 75 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥4.0B ($25.6M) in reported transaction value. The earliest filing StockDrifts holds for Cyfuse Biomedical K.K. is dated 2022-12-05; the most recent is 2026-05-12. 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 -33.44%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-05-12SELLunknown
株式会社SBI証券
other82.6K¥654+13.0%¥155M ($1.0M)
2026-05-12BUYMarket Buy
株式会社SBI新生銀行
passive223.0K¥654-13.0%¥146M ($941K)
2026-05-12BUYMarket Buy
SBI Ventures Two株式会社
passive462.7K¥654-13.0%¥303M ($2.0M)
2026-04-28SELLunknown
秋枝 静香
Shizuka Akieda
strategic746.2K¥711+11.7%¥73M ($469K)
2026-04-27SELLunknown
株式会社SBI証券
other327.9K¥710+11.6%¥51M ($329K)
2026-04-27BUYMarket Buy
株式会社SBI新生銀行
passive223.0K¥710-11.6%¥158M ($1.0M)
2026-04-27BUYMarket Buy
SBI Ventures Two株式会社
passive462.7K¥710-11.6%¥329M ($2.1M)
2026-01-23SELLMarket Buy
株式会社SBI証券
other401.0K¥689-2.9%¥284M ($1.8M)
2026-01-23SELLMarket Buy
株式会社SBI新生銀行
passive223.0K¥689-2.9%¥158M ($1.0M)
2026-01-23SELLMarket Buy
SBI Ventures Two株式会社
passive462.7K¥689-2.9%¥328M ($2.1M)
2025-10-01SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other464.1K¥598-18.6%¥35M ($228K)
2025-10-01SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥598-18.6%¥571K ($4K)
2025-10-01SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥598-18.6%¥2M ($11K)
2025-09-26SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥591-20.0%¥2M ($11K)
2025-09-26SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other525.2K¥591-20.0%¥55M ($354K)
2025-09-26SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥591-20.0%¥3M ($18K)
2025-09-12SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other622.2K¥584-21.4%¥55M ($354K)
2025-09-12SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥584-21.4%¥1M ($7K)
2025-09-12SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥584-21.4%¥3M ($18K)
2025-09-02SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other719.9K¥640-10.8%¥66M ($425K)
2025-09-02SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥640-10.8%¥2M ($11K)
2025-09-02SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥640-10.8%¥4M ($27K)
2025-08-22SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other830.2K¥650-9.1%¥121M ($781K)
2025-08-22SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥650-9.1%¥4M ($23K)
2025-08-22SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥650-9.1%¥7M ($42K)
2025-08-18SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥667-6.3%¥4M ($23K)
2025-08-18SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other1.0M¥667-6.3%¥70M ($452K)
2025-08-18SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥667-6.3%¥2M ($12K)
2025-08-04SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other1.1M¥660-7.4%¥57M ($366K)
2025-08-04SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥660-7.4%¥2M ($11K)
2025-08-04SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥660-7.4%¥4M ($23K)
2025-07-23SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other1.2M¥655-8.2%¥58M ($374K)
2025-07-23SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥655-8.2%¥2M ($11K)
2025-07-23SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥655-8.2%¥4M ($26K)
2025-07-14SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other1.3M¥702-1.0%¥63M ($408K)
2025-07-14SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥702-1.0%¥2M ($12K)
2025-07-14SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥702-1.0%¥4M ($24K)
2025-07-08SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other1.4M¥694-2.2%¥142M ($919K)
2025-07-08SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥694-2.2%¥5M ($31K)
2025-07-08SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥694-2.2%¥9M ($61K)
2025-06-23BUYMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other1.7M¥840-15.6%¥1.1B ($7.0M)
2025-06-23SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive462.7K¥840+15.6%¥13M ($86K)
2025-06-23SELLMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥840+15.6%¥2M ($14K)
2025-05-07BUYunknown
三條 真弘
Masahiro Sanjo
strategic566.9K¥973-27.1%¥101M ($650K)
2025-05-07BUYMarket Buy
三條 真弘
Masahiro Sanjo
strategic566.9K¥973-27.1%¥101M ($650K)
2025-05-07BUYMarket Buy
秋枝 静香
Shizuka Akieda
strategic701.2K¥973-27.1%¥116M ($749K)
2025-03-13SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other123.2K¥1,160+38.9%¥13M ($86K)
2025-03-13BUYMarket Buy
株式会社SBI新生銀行
SBI Shinsei Bank, Limited
passive223.0K¥1,160-38.9%¥259M ($1.7M)
2025-03-13SELLMarket Buy
SBI Ventures Two株式会社
SBI Ventures Two Co., Ltd.
passive471.8K¥1,160+38.9%¥22M ($141K)
2025-02-20SELLMarket Buy
株式会社SBI証券
SBI SECURITIES Co.,Ltd.
other134.9K¥920+22.9%¥52M ($335K)

Showing the 50 most recent of 152 filings.

Frequently asked questions

Who has been buying Cyfuse Biomedical K.K. stock?
9 distinct investors have filed 24 disclosed large-shareholding filings in Cyfuse Biomedical K.K. (4892), most recently on 2026-05-12. 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 Cyfuse Biomedical K.K. have?
Cyfuse Biomedical K.K. has 24 buy-side and 75 sell-side disclosures on record, covering ¥4.0B ($25.6M) in total reported value, spanning 2022-12-05 to 2026-05-12.
Where does StockDrifts get Cyfuse Biomedical K.K. 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 Cyfuse Biomedical K.K.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.