Who has been buying Sanei Architecture Planning Co.,Ltd. stock?

8 distinct investors have filed 16 disclosed large-shareholding filings in Sanei Architecture Planning Co.,Ltd. (3228), most recently on 2023-10-05. 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 Sanei Architecture Planning Co.,Ltd. have?

Sanei Architecture Planning Co.,Ltd. has 16 buy-side and 20 sell-side disclosures on record, covering ¥48.7B ($314.3M) in total reported value, spanning 2021-04-05 to 2023-10-05.

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.

Sanei Architecture Planning Co.,Ltd. 3228

Company

株式会社三栄建築設計Sanei Architecture Planning Co.,Ltd.

Investors

Buys

Total Value

¥48.7B ($314.3M)

Avg Return

+19.01%

Last Filing

2023-10-05

Sanei Architecture Planning Co.,Ltd. (3228) has 16 disclosed large-shareholding filings and 20 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥48.7B ($314.3M) in reported transaction value. The earliest filing StockDrifts holds for Sanei Architecture Planning Co.,Ltd. is dated 2021-04-05; the most recent is 2023-10-05. Across these filings the average return since disclosure is +19.01%, 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
2023-10-05	SELL	unknown	小池信三 KOIKE SHINZO	other	0	¥2,022	-0.1%	¥27.4B ($176.7M)
2023-10-05	SELL	unknown	株式会社レイチェル Rachel Co., Ltd.	other	0	¥2,022	-0.1%	¥16.3B ($105.2M)
2023-09-29	BUY	acquisition	株式会社オープンハウスグループ Open House Group Co., Ltd.	activist	19.7M	¥2,020	+0.3%	¥39.9B ($257.2M)
2023-09-07	SELL	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	0	¥2,021	-0.2%	¥4.1B ($26.2M)
2023-09-07	BUY	unknown	小池信三 KOIKE SHINZO	activist	13.5M	¥2,021	-	-
2023-09-07	BUY	unknown	株式会社レイチェル Rachel Co., Ltd.	strategic	80.8K	¥2,021	-	-
2023-08-30	BUY	unknown	小池信三 KOIKE SHINZO	activist	13.5M	¥2,021	-	-
2023-08-30	BUY	unknown	株式会社レイチェル Rachel Co., Ltd.	strategic	80.8K	¥2,021	-	-
2023-08-28	BUY	unknown	小池信三 KOIKE SHINZO	activist	13.5M	¥2,024	-	-
2023-08-28	BUY	unknown	株式会社レイチェル Rachel Co., Ltd.	strategic	80.8K	¥2,024	-	-
2023-08-23	BUY	unknown	小池信三 KOIKE SHINZO	activist	13.5M	¥2,023	-	-
2023-08-23	BUY	unknown	株式会社レイチェル Rachel Co., Ltd.	strategic	80.8K	¥2,023	-	-
2022-07-26	SELL	unknown	株式会社三栄建築設計 SANEI ARCHITECTURE PLANNING CO.,LTD.	unknown	0	¥1,644	-23.2%	¥5.9B ($37.9M)
2022-06-28	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	13.6K	¥1,624	-24.7%	¥21M ($137K)
2022-06-28	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	52.2K	¥1,624	+24.7%	¥77M ($496K)
2022-06-28	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	428.1K	¥1,624	+24.7%	¥38M ($245K)
2022-06-23	BUY	subscription	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.5M	¥1,608	+25.9%	¥358M ($2.3M)
2022-06-23	SELL	subscription	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	684.7K	¥1,608	-25.9%	¥392M ($2.5M)
2022-06-23	BUY	subscription	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	405.3K	¥1,608	-	-
2022-06-21	BUY	subscription	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.2M	¥1,578	+28.3%	¥7M ($43K)
2022-06-21	BUY	subscription	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	990.0K	¥1,578	+28.3%	¥57M ($367K)
2022-06-21	SELL	subscription	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	405.0K	¥1,578	-28.3%	¥40M ($259K)
2022-06-14	BUY	subscription	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	943.5K	¥1,620	+25.0%	¥62M ($399K)
2022-06-14	SELL	subscription	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.2M	¥1,620	-25.0%	¥670M ($4.3M)
2022-06-14	SELL	subscription	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	430.4K	¥1,620	-25.0%	¥3M ($22K)
2022-06-13	BUY	subscription	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.2M	¥1,643	-	-
2022-06-13	BUY	subscription	株式会社三栄建築設計 SANEI ARCHITECTURE PLANNING CO.,LTD.	other	4.3M	¥1,643	+23.3%	¥7.1B ($45.6M)
2022-06-13	BUY	subscription	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	896.1K	¥1,643	+23.3%	¥572M ($3.7M)
2022-06-13	BUY	subscription	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	432.3K	¥1,643	+23.3%	¥21M ($135K)
2022-04-11	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	470.0K	¥1,634	+23.9%	¥385M ($2.5M)
2022-04-11	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.2M	¥1,634	-23.9%	¥350M ($2.3M)
2022-04-11	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	421.1K	¥1,634	-23.9%	¥55M ($358K)
2021-11-15	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.5M	¥1,799	-	-
2021-11-15	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	187.5K	¥1,799	+12.6%	¥11M ($74K)
2021-11-15	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	454.6K	¥1,799	-	-
2021-11-11	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	178.4K	¥1,753	-15.5%	¥744M ($4.8M)
2021-11-11	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	454.6K	¥1,753	+15.5%	¥30M ($192K)
2021-11-11	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.5M	¥1,753	+15.5%	¥800M ($5.2M)
2021-09-01	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	688.8K	¥1,914	+5.8%	¥223M ($1.4M)
2021-09-01	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	436.8K	¥1,914	-5.8%	¥65M ($419K)
2021-09-01	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.9M	¥1,914	-5.8%	¥296M ($1.9M)
2021-05-24	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.1M	¥2,056	-	-
2021-05-24	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	545.6K	¥2,056	+1.5%	¥22M ($141K)
2021-05-24	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	471.2K	¥2,056	+1.5%	¥17M ($113K)
2021-05-12	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.1M	¥1,915	-5.7%	¥8M ($52K)
2021-05-12	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	480.2K	¥1,915	-5.7%	¥77M ($498K)
2021-05-12	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	559.0K	¥1,915	-5.7%	¥77M ($498K)
2021-04-05	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.1M	¥1,951	-3.8%	¥517M ($3.3M)
2021-04-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	606.1K	¥1,951	+3.8%	¥563M ($3.6M)
2021-04-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	519.2K	¥1,951	-	-

Frequently asked questions

Who has been buying Sanei Architecture Planning Co.,Ltd. stock?: 8 distinct investors have filed 16 disclosed large-shareholding filings in Sanei Architecture Planning Co.,Ltd. (3228), most recently on 2023-10-05. 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 Sanei Architecture Planning Co.,Ltd. have?: Sanei Architecture Planning Co.,Ltd. has 16 buy-side and 20 sell-side disclosures on record, covering ¥48.7B ($314.3M) in total reported value, spanning 2021-04-05 to 2023-10-05.
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.