Who has been buying St.Cousair Co., Ltd. stock?

9 distinct investors have filed 11 disclosed large-shareholding filings in St.Cousair Co., Ltd. (2937), most recently on 2025-02-28. 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 St.Cousair Co., Ltd. have?

St.Cousair Co., Ltd. has 11 buy-side and 14 sell-side disclosures on record, covering ¥7.2B ($46.3M) in total reported value, spanning 2022-12-27 to 2025-02-28.

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.

St.Cousair Co., Ltd. 2937

Company

株式会社サンクゼールSt.Cousair Co., Ltd.

Investors

Buys

Total Value

¥7.2B ($46.3M)

Avg Return

-27.76%

Last Filing

2025-02-28

St.Cousair Co., Ltd. (2937) has 11 disclosed large-shareholding filings and 14 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥7.2B ($46.3M) in reported transaction value. The earliest filing StockDrifts holds for St.Cousair Co., Ltd. is dated 2022-12-27; the most recent is 2025-02-28. Across these filings the average return since disclosure is -27.76%, 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
2026-08-10	SELL	negotiated	久世良太	activist	850.0K	¥1,741	-2.8%	¥8M ($52K)
2026-08-10	SELL	negotiated	久世良三	activist	608.5K	¥1,741	-2.8%	¥1.1B ($6.8M)
2026-08-10	SELL	unknown	株式会社Joseph‘s Arrows Trust	strategic	1.3M	¥1,741	-2.8%	¥13M ($84K)
2026-08-10	SELL	unknown	ABRAHAM‘SWAYFOUNDATION,LLC	strategic	839.6K	¥1,741	-2.8%	¥8M ($52K)
2026-08-10	SELL	unknown	KUZE FAMILY OFFICE,LLC	strategic	370.0K	¥1,741	-2.8%	¥3M ($21K)
2026-08-10	SELL	unknown	KUZE GLOBAL FAMILY OFFICE,LLC	strategic	370.0K	¥1,741	-2.8%	¥3M ($21K)
2026-08-10	BUY	unknown	久世直樹	unknown	0	¥1,741	-	-
2026-08-10	SELL	unknown	久世まゆみ	strategic	520.0K	¥1,741	-2.8%	¥5M ($31K)
2026-08-10	BUY	unknown	公益財団法人サンクゼール財団 St.Cousair Foundation	strategic	600.0K	¥1,741	+2.8%	¥1.0B ($6.7M)
2025-02-28	SELL	negotiated	久世直樹 Naoki Kuze	unknown	0	¥1,576	-13.6%	¥1.2B ($7.9M)
2025-02-28	SELL	negotiated	久世良太 Ryota Kuze	activist	850.0K	¥1,576	-13.6%	¥64M ($414K)
2025-02-28	SELL	negotiated	久世良太 Ryota Kuze	activist	850.0K	¥1,576	-13.6%	¥64M ($414K)
2025-02-28	SELL	negotiated	久世良三 Ryozo Kuze	activist	1.2M	¥1,576	-13.6%	¥89M ($574K)
2025-02-28	SELL	negotiated	久世まゆみ Mayumi Kuze	strategic	520.0K	¥1,576	-13.6%	¥38M ($245K)
2025-02-28	SELL	negotiated	株式会社Joseph‘s Arrows Trust Joseph’s Arrows Trust Co., Ltd.	strategic	1.3M	¥1,576	-13.6%	¥99M ($640K)
2025-02-28	SELL	negotiated	ABRAHAM‘SWAYFOUNDATION,LLC	strategic	839.6K	¥1,576	-13.6%	¥63M ($405K)
2025-02-28	BUY	negotiated	KUZE FAMILY OFFICE,LLC	strategic	370.0K	¥1,576	+13.6%	¥584M ($3.8M)
2025-02-28	BUY	negotiated	KUZE GLOBAL FAMILY OFFICE,LLC	strategic	370.0K	¥1,576	+13.6%	¥584M ($3.8M)
2025-02-28	SELL	negotiated	久世良三 Ryozo Kuze	activist	1.2M	¥1,576	-13.6%	¥89M ($574K)
2025-02-28	SELL	negotiated	久世まゆみ Mayumi Kuze	strategic	520.0K	¥1,576	-13.6%	¥38M ($245K)
2025-02-28	SELL	negotiated	久世直樹 Naoki Kuze	unknown	0	¥1,576	-13.6%	¥1.2B ($7.9M)
2025-02-28	SELL	negotiated	株式会社Joseph‘s Arrows Trust Joseph’s Arrows Trust Co., Ltd.	strategic	1.3M	¥1,576	-13.6%	¥99M ($640K)
2025-02-28	SELL	negotiated	ABRAHAM‘SWAYFOUNDATION,LLC	strategic	839.6K	¥1,576	-13.6%	¥63M ($405K)
2025-02-28	BUY	negotiated	KUZE FAMILY OFFICE,LLC	strategic	370.0K	¥1,576	+13.6%	¥584M ($3.8M)
2025-02-28	BUY	negotiated	KUZE GLOBAL FAMILY OFFICE,LLC	strategic	370.0K	¥1,576	+13.6%	¥584M ($3.8M)
2023-07-19	BUY	Market Buy	アイザワ証券株式会社 AIZAWA SECURITIES CO.,LTD	passive	346.7K	¥2,667	-	¥386M ($2.5M)
2023-07-19	SELL	Market Buy	アイザワ証券株式会社 AIZAWA SECURITIES CO.,LTD	passive	346.7K	¥2,667	+32.9%	¥386M ($2.5M)
2023-03-03	BUY	Market Buy	アイザワ証券株式会社 AIZAWA SECURITIES CO.,LTD.	passive	477.4K	¥3,900	-	¥1.9B ($12.0M)
2023-03-03	BUY	Market Buy	アイザワ証券株式会社 AIZAWA SECURITIES CO.,LTD.	passive	477.4K	¥3,900	-54.1%	¥1.9B ($12.0M)
2023-01-25	BUY	negotiated	久世良太 Ryota Kuze	activist	850.0K	¥2,859	-	-
2023-01-25	SELL	negotiated	久世良三 Ryozo Kuze	activist	1.2M	¥2,859	+37.4%	¥1.1B ($7.2M)
2023-01-25	BUY	negotiated	久世まゆみ Mayumi Kuze	strategic	520.0K	¥2,859	-	-
2023-01-25	BUY	negotiated	久世直樹 Naoki Kuze	activist	740.0K	¥2,859	-	-
2023-01-25	BUY	negotiated	株式会社Joseph‘s Arrows Trust Joseph’s Arrows Trust Co., Ltd.	strategic	1.3M	¥2,859	-	-
2023-01-25	BUY	negotiated	ABRAHAM‘SWAYFOUNDATION,LLC	strategic	839.6K	¥2,859	-	-
2022-12-27	BUY	negotiated	久世良太 Ryota Kuze	activist	850.0K	¥3,100	-42.3%	¥2.6B ($17.0M)
2022-12-27	BUY	negotiated	株式会社Joseph‘s Arrows Trust Joseph’s Arrows Trust Co., Ltd.	strategic	1.3M	¥3,100	-42.3%	¥4.2B ($26.8M)
2022-12-27	BUY	negotiated	ABRAHAM‘SWAYFOUNDATION,LLC	strategic	839.6K	¥3,100	-42.3%	¥2.6B ($16.8M)
2022-12-27	BUY	negotiated	久世良三 Ryozo Kuze	activist	1.6M	¥3,100	-42.3%	¥5.0B ($32.0M)
2022-12-27	BUY	negotiated	久世まゆみ Mayumi Kuze	strategic	520.0K	¥3,100	-42.3%	¥1.6B ($10.4M)
2022-12-27	BUY	negotiated	久世直樹 Naoki Kuze	activist	740.0K	¥3,100	-42.3%	¥2.3B ($14.8M)

Frequently asked questions

Who has been buying St.Cousair Co., Ltd. stock?: 9 distinct investors have filed 11 disclosed large-shareholding filings in St.Cousair Co., Ltd. (2937), most recently on 2025-02-28. 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 St.Cousair Co., Ltd. have?: St.Cousair Co., Ltd. has 11 buy-side and 14 sell-side disclosures on record, covering ¥7.2B ($46.3M) in total reported value, spanning 2022-12-27 to 2025-02-28.
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.