Who has been buying Septeni Holdings Co., Ltd. stock?

10 distinct investors have filed 13 disclosed large-shareholding filings in Septeni Holdings Co., Ltd. (4293), most recently on 2026-05-01. 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 Septeni Holdings Co., Ltd. have?

Septeni Holdings Co., Ltd. has 13 buy-side and 16 sell-side disclosures on record, covering ¥63.2B ($408.0M) in total reported value, spanning 2021-10-07 to 2026-05-01.

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.

Septeni Holdings Co., Ltd. 4293

Company

株式会社セプテーニ・ホールディングスSepteni Holdings Co., Ltd.

Investors

Buys

Total Value

¥63.2B ($408.0M)

Avg Return

-4.95%

Last Filing

2026-05-01

Septeni Holdings Co., Ltd. (4293) has 13 disclosed large-shareholding filings and 16 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥63.2B ($408.0M) in reported transaction value. The earliest filing StockDrifts holds for Septeni Holdings Co., Ltd. is dated 2021-10-07; the most recent is 2026-05-01. Across these filings the average return since disclosure is -4.95%, 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
2026-05-01	SELL	unknown	オアシスマネジメントカンパニーリミテッド(Oasis Management Company Ltd.) Oasis Management Company Ltd.	activist	14.5M	¥422	-18.5%	¥2.7B ($17.6M)
2025-05-02	BUY	unknown	七村美恵子 Mieko Nanamura	strategic	142.0K	¥358	+39.7%	¥3.0B ($19.5M)
2025-05-02	SELL	unknown	七村守 Mamoru Nanamura	strategic	9.5M	¥358	-39.7%	¥348M ($2.2M)
2025-05-02	SELL	unknown	七村守 Mamoru Nanamura	strategic	9.5M	¥358	-39.7%	¥348M ($2.2M)
2025-05-02	SELL	unknown	株式会社ビレッジセブン Village Seven Co., Ltd.	strategic	12.8M	¥358	-39.7%	¥590M ($3.8M)
2025-05-02	BUY	unknown	七村美恵子 Mieko Nanamura	strategic	142.0K	¥358	+39.7%	¥3.0B ($19.5M)
2025-05-02	SELL	unknown	株式会社ビレッジセブン Village Seven Co., Ltd.	strategic	12.8M	¥358	-39.7%	¥590M ($3.8M)
2023-12-28	BUY	unknown	オアシスマネジメントカンパニーリミテッド(Oasis Management Company Ltd.) Oasis Management Company Ltd.	activist	20.9M	¥515	-2.9%	¥10.8B ($69.4M)
2023-12-21	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	9.7M	¥482	+3.7%	¥4.6B ($29.7M)
2023-12-21	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	0	¥482	-3.7%	¥234M ($1.5M)
2022-11-18	SELL	unknown	七村守 Mamoru Nanamura	strategic	10.5M	¥410	-21.9%	¥788M ($5.1M)
2022-11-18	BUY	unknown	株式会社ビレッジセブン Village Seven Co., Ltd.	strategic	14.4M	¥410	-	-
2022-11-18	BUY	unknown	七村美恵子 Mieko Nanamura	strategic	72.0K	¥410	-	-
2022-11-18	BUY	unknown	株式会社ビレッジセブン Village Seven Co., Ltd.	strategic	14.4M	¥410	-	-
2022-11-18	BUY	unknown	七村美恵子 Mieko Nanamura	strategic	72.0K	¥410	-	-
2022-11-18	SELL	unknown	七村守 Mamoru Nanamura	strategic	10.5M	¥410	-21.9%	¥788M ($5.1M)
2022-10-06	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	12.2M	¥460	+8.7%	¥952M ($6.1M)
2022-10-06	BUY	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	485.3K	¥460	+8.7%	¥39M ($251K)
2022-08-04	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	10.2M	¥517	-3.3%	¥5.3B ($33.9M)
2022-08-04	BUY	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	406.9K	¥517	-3.3%	¥210M ($1.4M)
2022-03-08	SELL	unknown	七村守 Mamoru Nanamura	strategic	12.4M	¥635	+21.3%	¥4.2B ($26.8M)
2022-03-08	SELL	unknown	七村守 Mamoru Nanamura	strategic	12.4M	¥635	+21.3%	¥4.2B ($26.8M)
2022-03-08	SELL	unknown	株式会社ビレッジセブン Village Seven Co., Ltd.	strategic	14.4M	¥635	+21.3%	¥4.8B ($30.7M)
2022-03-08	SELL	unknown	七村美恵子 Mieko Nanamura	strategic	72.0K	¥635	+21.3%	¥2.7B ($17.3M)
2022-03-08	SELL	unknown	株式会社ビレッジセブン Village Seven Co., Ltd.	strategic	14.4M	¥635	+21.3%	¥4.8B ($30.7M)
2022-03-08	SELL	unknown	七村美恵子 Mieko Nanamura	strategic	72.0K	¥635	+21.3%	¥2.7B ($17.3M)
2022-01-11	BUY	Market Buy	株式会社電通グループ DENTSU GROUP INC.	activist	109.8M	¥471	+6.2%	¥32.5B ($209.4M)
2021-11-08	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	2.8M	¥554	-9.8%	¥1.5B ($10.0M)
2021-11-08	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	0	¥554	+9.8%	¥816M ($5.3M)
2021-11-08	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	800	¥554	+9.8%	¥277M ($1.8M)
2021-10-07	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	5.5M	¥455	+9.9%	¥2.5B ($16.3M)
2021-10-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.5M	¥455	+9.9%	¥669M ($4.3M)
2021-10-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	504.9K	¥455	+9.9%	¥230M ($1.5M)

Frequently asked questions

Who has been buying Septeni Holdings Co., Ltd. stock?: 10 distinct investors have filed 13 disclosed large-shareholding filings in Septeni Holdings Co., Ltd. (4293), most recently on 2026-05-01. 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 Septeni Holdings Co., Ltd. have?: Septeni Holdings Co., Ltd. has 13 buy-side and 16 sell-side disclosures on record, covering ¥63.2B ($408.0M) in total reported value, spanning 2021-10-07 to 2026-05-01.
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.