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Shobunsha Holdings, Inc. 9475

Company
株式会社昭文社ホールディングスShobunsha Holdings, Inc.
Investors
11
Buys
10
Total Value
¥3.6B ($23.2M)
Avg Return
+28.76%
Last Filing
2026-04-20

Shobunsha Holdings, Inc. (9475) has 10 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥3.6B ($23.2M) in reported transaction value. The earliest filing StockDrifts holds for Shobunsha Holdings, Inc. is dated 2021-03-19; the most recent is 2026-04-20. Across these filings the average return since disclosure is +28.76%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-04-20BUYMarket Buy
光通信株式会社
passive921.5K¥502+8.2%¥17M ($112K)
2026-04-20BUYMarket Buy
株式会社UH Partners 2
passive150.2K¥502-¥75M ($486K)
2026-04-20SELLMarket Buy
株式会社UH5
unknown0¥502-8.2%¥11M ($71K)
2026-04-20BUYMarket Buy
株式会社UH6
passive21.8K¥502-¥11M ($71K)
2025-10-20BUYMarket Buy
株式会社UH5
UH5 Co., Ltd.
passive21.8K¥419+29.6%¥9M ($59K)
2025-10-20BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive888.0K¥419+29.6%¥372M ($2.4M)
2025-10-20BUYMarket Buy
株式会社UH5
passive21.8K¥419+29.6%¥9M ($59K)
2025-10-20BUYMarket Buy
光通信株式会社
passive888.0K¥419+29.6%¥372M ($2.4M)
2024-09-02SELLMarket Buy
株式会社MGSHD(消滅会社)
MGSHD Co., Ltd. (extinct company)
other0¥374-45.2%¥626M ($4.0M)
2024-09-02BUYMarket Buy
株式会社エムティーアイ
MTI Ltd.
strategic5.4M¥374+45.2%¥1.4B ($8.9M)
2024-09-02SELLMarket Buy
SPSHD株式会社(消滅会社)
SPSHD Co., Ltd. (disappeared company)
other0¥374-45.2%¥626M ($4.0M)
2024-09-02SELLMarket Buy
株式会社MTーApp(消滅会社)
MT-App Co., Ltd. (extinct company)
other0¥374-45.2%¥85M ($548K)
2024-08-09BUYunknown
株式会社MSE
MSE Co., Ltd.
activist3.4M¥350+55.1%¥256M ($1.7M)
2024-08-09SELLunknown
黒田 茂夫
Shigeo Kuroda
activist1.9M¥350-55.1%¥255M ($1.6M)
2023-11-17BUYunknown
黒田 喜容子
Kiyoko Kuroda
activist0¥370-¥998M ($6.4M)
2023-11-17SELLunknown
黒田 喜容子
Kiyoko Kuroda
activist0¥370-46.8%¥998M ($6.4M)
2023-11-17BUYunknown
黒田 茂夫
Shigeo Kuroda
activist2.6M¥370--
2023-11-17BUYunknown
株式会社MSE
MSE Co., Ltd.
activist2.7M¥370-¥998M ($6.4M)
2023-09-12BUYunknown
黒田 喜容子
Kiyoko Kuroda
activist2.7M¥313+73.5%¥845M ($5.4M)
2023-09-08BUYMarket Buy
黒田 茂夫
Shigeo Kuroda
activist2.6M¥307+76.9%¥276M ($1.8M)
2021-07-19BUYnegotiated
株式会社エムティーアイ
MTI Ltd.
strategic1.7M¥483--
2021-07-19BUYnegotiated
株式会社MGSHD
MGSHD Co., Ltd.
strategic1.7M¥483--
2021-07-19BUYnegotiated
SPSHD株式会社
SPSHD Co., Ltd.
strategic1.7M¥483--
2021-07-19SELLnegotiated
株式会社MT-App
MT-App Co., Ltd.
strategic227.2K¥483-12.4%¥1.8B ($11.8M)
2021-03-19BUYnegotiated
株式会社エムティーアイ
MTI Ltd.
strategic1.7M¥477.983--
2021-03-19BUYnegotiated
株式会社MGSHD
MGSHD Co., Ltd.
strategic1.7M¥477.983--
2021-03-19BUYnegotiated
SPSHD株式会社
SPSHD Co., Ltd.
strategic1.7M¥477.983+13.6%¥69M ($443K)
2021-03-19BUYnegotiated
株式会社MT-App
MT-App Co., Ltd.
strategic39.6K¥477.983-¥19M ($122K)

Frequently asked questions

Who has been buying Shobunsha Holdings, Inc. stock?
11 distinct investors have filed 10 disclosed large-shareholding filings in Shobunsha Holdings, Inc. (9475), most recently on 2026-04-20. 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 Shobunsha Holdings, Inc. have?
Shobunsha Holdings, Inc. has 10 buy-side and 7 sell-side disclosures on record, covering ¥3.6B ($23.2M) in total reported value, spanning 2021-03-19 to 2026-04-20.
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.