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Fuso Pharmaceutical Industries,Ltd. 4538

Company
扶桑薬品工業株式会社Fuso Pharmaceutical Industries,Ltd.
Investors
8
Buys
8
Total Value
¥2.8B ($18.2M)
Avg Return
-4.57%
Last Filing
2026-02-06

Fuso Pharmaceutical Industries,Ltd. (4538) has 8 disclosed large-shareholding filings and 13 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥2.8B ($18.2M) in reported transaction value. The earliest filing StockDrifts holds for Fuso Pharmaceutical Industries,Ltd. is dated 2023-09-22; the most recent is 2026-02-06. 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 -4.57%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-06-05BUYunknown
株式会社 三井住友銀行
other278.9K¥2,054+4.0%¥573M ($3.7M)
2026-06-05SELLunknown
SMBC日興証券株式会社
other97.0K¥2,054-4.0%¥427M ($2.8M)
2026-06-04BUYMarket Buy
アモーヴァ・アセットマネジメント株式会社
other115.0K¥2,017+5.9%¥4M ($25K)
2026-06-04SELLunknown
三井住友トラスト・アセットマネジメント株式会社
other128.8K¥2,017-5.9%¥19M ($123K)
2026-06-04BUYnegotiated
三井住友信託銀行株式会社
strategic245.5K¥2,017+5.9%¥495M ($3.2M)
2026-02-06BUYunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other584.0K¥2,343-2.7%¥1.4B ($8.8M)
2026-02-05SELLnegotiated
三井住友信託銀行株式会社
Sumitomo Mitsui Trust Bank,Limited
strategic497.0K¥2,353+3.1%¥31M ($201K)
2025-09-19SELLnegotiated
アモーヴァ・アセットマネジメント株式会社
Amova Asset Management Co., Ltd.
other112.0K¥2,151-6.0%¥2M ($13K)
2025-09-19SELLnegotiated
三井住友トラスト・アセットマネジメント株式会社
Sumitomo Mitsui Trust Asset Management Co.,Ltd.
other152.4K¥2,151-6.0%¥53M ($341K)
2025-09-19BUYnegotiated
三井住友信託銀行株式会社
Sumitomo Mitsui Trust Bank,Limited
strategic245.5K¥2,151+6.0%¥528M ($3.4M)
2025-05-22SELLunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other89.2K¥2,231-2.1%¥420M ($2.7M)
2025-05-22BUYunknown
株式会社 三井住友銀行
Sumitomo Mitsui Banking Corporation
other278.9K¥2,231+2.1%¥622M ($4.0M)
2025-04-21SELLnegotiated
日興アセットマネジメント株式会社
Nikko Asset Management Co.,Ltd.
other113.5K¥2,304+1.1%¥2M ($14K)
2025-04-21SELLnegotiated
三井住友トラスト・アセットマネジメント株式会社
Sumitomo Mitsui Trust Asset Management Co.,Ltd.
other176.7K¥2,304+1.1%¥2M ($14K)
2025-04-21BUYnegotiated
三井住友信託銀行株式会社
Sumitomo Mitsui Trust Bank,Limited
strategic245.5K¥2,304-1.1%¥566M ($3.6M)
2025-03-21BUYnegotiated
日興アセットマネジメント株式会社
Nikko Asset Management Co.,Ltd.
other113.9K¥2,597-12.2%¥64M ($412K)
2025-03-21BUYnegotiated
三井住友トラスト・アセットマネジメント株式会社
Sumitomo Mitsui Trust Asset Management Co.,Ltd.
other177.6K¥2,597-12.2%¥54M ($348K)
2025-03-21SELLnegotiated
三井住友信託銀行株式会社
Sumitomo Mitsui Trust Bank,Limited
strategic245.5K¥2,597+12.2%¥172M ($1.1M)
2025-03-07BUYunknown
株式会社 三井住友銀行
Sumitomo Mitsui Banking Corporation
other278.9K¥2,563-11.1%¥715M ($4.6M)
2025-03-07BUYunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other276.5K¥2,563-11.1%¥709M ($4.6M)
2024-04-22SELLunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other18.8K¥2,208-3.2%¥401M ($2.6M)
2024-04-22BUYunknown
株式会社 三井住友銀行
Sumitomo Mitsui Banking Corporation
other278.9K¥2,208+3.2%¥616M ($4.0M)
2024-03-25BUYunknown
株式会社 三井住友銀行
Sumitomo Mitsui Banking Corporation
other278.9K¥2,319-1.7%¥647M ($4.2M)
2024-03-25BUYunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other200.7K¥2,319-1.7%¥465M ($3.0M)
2023-10-02BUYnegotiated
三菱UFJ国際投信株式会社
Mitsubishi UFJ Financial Group Inc.
passive38.6K¥1,960+16.3%¥33M ($215K)
2023-10-02SELLnegotiated
三菱UFJ信託銀行株式会社
Mitsubishi UFJ Financial Group Inc.
passive93.4K¥1,960-16.3%¥93M ($598K)
2023-10-02SELLnegotiated
株式会社三菱UFJ銀行
Mitsubishi UFJ Financial Group Inc.
strategic224.5K¥1,960-16.3%¥237M ($1.5M)
2023-09-22SELLnegotiated
日興アセットマネジメント株式会社
Nikko Asset Management Co.,Ltd.
other89.8K¥2,020-12.8%¥50M ($320K)
2023-09-22SELLnegotiated
三井住友トラスト・アセットマネジメント株式会社
Sumitomo Mitsui Trust Asset Management Co.,Ltd.
other157.2K¥2,020-12.8%¥105M ($677K)
2023-09-22SELLnegotiated
三井住友信託銀行株式会社
Sumitomo Mitsui Trust Bank,Limited
strategic311.7K¥2,020-12.8%¥134M ($862K)

Frequently asked questions

Who has been buying Fuso Pharmaceutical Industries,Ltd. stock?
8 distinct investors have filed 8 disclosed large-shareholding filings in Fuso Pharmaceutical Industries,Ltd. (4538), most recently on 2026-02-06. 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 Fuso Pharmaceutical Industries,Ltd. have?
Fuso Pharmaceutical Industries,Ltd. has 8 buy-side and 13 sell-side disclosures on record, covering ¥2.8B ($18.2M) in total reported value, spanning 2023-09-22 to 2026-02-06.
Where does StockDrifts get Fuso Pharmaceutical Industries,Ltd. 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 Fuso Pharmaceutical Industries,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.