Who has been buying SE Holdings and Incubations Co., Ltd. stock?

3 distinct investors have filed 6 disclosed large-shareholding filings in SE Holdings and Incubations Co., Ltd. (9478), most recently on 2025-07-09. 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 SE Holdings and Incubations Co., Ltd. have?

SE Holdings and Incubations Co., Ltd. has 6 buy-side and 1 sell-side disclosures on record, covering ¥641M ($4.1M) in total reported value, spanning 2023-03-08 to 2025-07-09.

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.

SE Holdings and Incubations Co., Ltd. 9478

Company

SEホールディングス・アンド・インキュベーションズ株式会社SE Holdings and Incubations Co., Ltd.

Investors

Buys

Total Value

¥641M ($4.1M)

Avg Return

+66.17%

Last Filing

2025-07-09

SE Holdings and Incubations Co., Ltd. (9478) has 6 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥641M ($4.1M) in reported transaction value. The earliest filing StockDrifts holds for SE Holdings and Incubations Co., Ltd. is dated 2023-03-08; the most recent is 2025-07-09. Across these filings the average return since disclosure is +66.17%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2025-07-09	BUY	Market Buy	速水浩二 KOJI HAYAMI	activist	2.8M	¥312	+63.1%	¥58M ($371K)
2025-07-08	BUY	unknown	篠﨑晃一 KOICHI SHINOZAKI	activist	935.2K	¥320	+59.1%	¥299M ($1.9M)
2025-07-08	BUY	unknown	篠﨑晃一 KOICHI SHINOZAKI	activist	934.9K	¥320	-	¥299M ($1.9M)
2025-02-20	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	704.1K	¥283	-79.9%	¥71M ($459K)
2024-11-07	BUY	unknown	速水浩二 KOJI HAYAMI	activist	2.8M	¥298	-	¥88M ($567K)
2024-11-07	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	954.0K	¥298	+70.8%	¥284M ($1.8M)
2024-11-07	BUY	Market Buy	速水浩二 KOJI HAYAMI	activist	2.8M	¥298	+70.8%	¥88M ($567K)
2023-11-06	BUY	unknown	速水浩二 KOJI HAYAMI	activist	2.7M	¥304	-	¥95M ($611K)
2023-11-06	BUY	Market Buy	速水浩二 KOJI HAYAMI	activist	2.7M	¥304	+67.4%	¥95M ($611K)
2023-03-08	BUY	unknown	速水浩二 KOJI HAYAMI	activist	2.7M	¥249	-	¥76M ($487K)
2023-03-08	BUY	Market Buy	速水浩二 KOJI HAYAMI	activist	2.7M	¥249	+104.4%	¥76M ($487K)

Frequently asked questions

Who has been buying SE Holdings and Incubations Co., Ltd. stock?: 3 distinct investors have filed 6 disclosed large-shareholding filings in SE Holdings and Incubations Co., Ltd. (9478), most recently on 2025-07-09. 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 SE Holdings and Incubations Co., Ltd. have?: SE Holdings and Incubations Co., Ltd. has 6 buy-side and 1 sell-side disclosures on record, covering ¥641M ($4.1M) in total reported value, spanning 2023-03-08 to 2025-07-09.
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.