Who has been buying SMS Co., Ltd. stock?

14 distinct investors have filed 26 disclosed large-shareholding filings in SMS Co., Ltd. (2175), most recently on 2026-05-13. 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 SMS Co., Ltd. have?

SMS Co., Ltd. has 26 buy-side and 22 sell-side disclosures on record, covering ¥52.3B ($337.5M) in total reported value, spanning 2021-04-22 to 2026-05-13.

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.

SMS Co., Ltd. 2175

Company

株式会社エス・エム・エスSMS Co., Ltd.

Investors

Buys

Total Value

¥52.3B ($337.5M)

Avg Return

-10.35%

Last Filing

2026-05-13

SMS Co., Ltd. (2175) has 26 disclosed large-shareholding filings and 22 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥52.3B ($337.5M) in reported transaction value. The earliest filing StockDrifts holds for SMS Co., Ltd. is dated 2021-04-22; the most recent is 2026-05-13. Across these filings the average return since disclosure is -10.35%, 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
2026-09-24	BUY	Market Buy	野村アセットマネジメント株式会社	other	2.5M	¥2,652	-0.8%	¥46M ($300K)
2026-09-24	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.4M	¥2,652	-0.8%	¥2.3B ($15.0M)
2026-09-24	SELL	unknown	野村證券株式会社	other	1.1M	¥2,652	+0.8%	¥3.7B ($23.8M)
2026-09-16	BUY	Market Buy	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	23.6M	¥2,652	-0.8%	¥2.4B ($15.6M)
2026-09-10	BUY	Market Buy	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	22.7M	¥2,538	+3.6%	¥2.8B ($18.4M)
2026-09-04	BUY	Market Buy	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	21.6M	¥2,518	+4.5%	¥5.0B ($32.3M)
2026-09-01	BUY	Market Buy	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	19.6M	¥2,477	+6.2%	¥2.3B ($14.6M)
2026-08-20	BUY	Market Buy	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	18.7M	¥2,279	+15.4%	¥2.1B ($13.3M)
2026-08-06	BUY	Market Buy	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	17.8M	¥2,302	+14.3%	¥2.0B ($13.0M)
2026-07-23	BUY	Market Buy	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	16.9M	¥2,384	+10.3%	¥2.1B ($13.6M)
2026-07-22	BUY	Market Buy	野村證券株式会社	other	2.5M	¥2,457	+7.0%	¥1.9B ($11.9M)
2026-07-22	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	568.6K	¥2,457	+7.0%	¥602M ($3.9M)
2026-07-22	SELL	unknown	野村アセットマネジメント株式会社	other	2.4M	¥2,457	-7.0%	¥22M ($139K)
2026-06-04	BUY	unknown	野村證券株式会社	other	1.7M	¥2,001	+31.4%	¥3.5B ($22.5M)
2026-06-04	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	320.6K	¥2,001	+31.4%	¥642M ($4.1M)
2026-06-04	BUY	unknown	野村アセットマネジメント株式会社	other	2.5M	¥2,001	+31.4%	¥4.9B ($31.7M)
2026-05-13	BUY	unknown	リープラピーティーイーエルティーディー REAPRA PTE.LTD.	other	1.1M	¥1,729	-	-
2026-05-13	BUY	Market Buy	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	16.0M	¥1,729	+52.1%	¥1.1B ($7.0M)
2026-05-13	BUY	unknown	MORO合同会社	other	15.4M	¥1,729	-	-
2026-04-20	SELL	Market Buy	ラザード・アセット・マネージメント・エルエルシー(Lazard Asset Management LLC) Lazard Asset Management LLC	passive	3.2M	¥1,780	-47.8%	¥2.0B ($13.2M)
2026-04-06	SELL	unknown	野村アセットマネジメント株式会社	other	2.2M	¥1,680	-56.5%	¥412M ($2.7M)
2026-04-06	SELL	unknown	野村證券株式会社	other	710.9K	¥1,680	-56.5%	¥397M ($2.6M)
2026-04-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	386.9K	¥1,680	-56.5%	¥1.4B ($9.0M)
2026-03-05	BUY	unknown	野村證券株式会社	other	944.9K	¥1,698	+54.9%	¥1.6B ($10.4M)
2026-03-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.2M	¥1,698	+54.9%	¥2.1B ($13.3M)
2026-03-05	BUY	unknown	野村アセットマネジメント株式会社	other	2.5M	¥1,698	+54.9%	¥4.2B ($27.0M)
2026-02-19	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	691.4K	¥1,708	-54.0%	¥643M ($4.1M)
2026-02-19	SELL	unknown	野村アセットマネジメント株式会社	other	2.5M	¥1,708	-54.0%	¥30M ($193K)
2026-02-19	SELL	unknown	野村證券株式会社	other	952.9K	¥1,708	-54.0%	¥374M ($2.4M)
2026-02-10	BUY	Market Buy	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	15.4M	¥1,785	+47.3%	¥9.6B ($61.7M)
2026-02-02	BUY	Market Buy	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	10.0M	¥1,613	+63.0%	¥5.2B ($33.7M)
2026-01-21	BUY	acquisition	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	6.8M	¥1,381	+90.4%	¥9.4B ($60.5M)
2026-01-09	BUY	unknown	野村證券株式会社	other	1.2M	¥1,386	+89.8%	¥1.6B ($10.5M)
2026-01-09	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.1M	¥1,386	+89.8%	¥1.5B ($9.6M)
2026-01-09	BUY	unknown	野村アセットマネジメント株式会社	other	2.5M	¥1,386	+89.8%	¥3.4B ($22.2M)
2025-11-20	SELL	Market Buy	ワサッチ・アドバイザーズ・エルピー Wasatch Advisors, LP	passive	3.5M	¥1,300	-102.3%	¥1.2B ($7.9M)
2025-11-10	BUY	unknown	MORO合同会社 MORO, LLC	other	15.4M	¥1,320	-	-
2025-11-10	BUY	unknown	リープラピーティーイーエルティーディー REAPRA PTE.LTD.	other	1.1M	¥1,320	-	-
2025-10-21	SELL	Market Buy	ワサッチ・アドバイザーズ・エルピー Wasatch Advisors, LP	passive	4.4M	¥1,563.5	-68.2%	¥1.5B ($9.9M)
2025-10-21	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	140.2K	¥1,563.5	-68.2%	¥96M ($618K)
2025-10-21	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.6M	¥1,563.5	-68.2%	¥1.4B ($9.3M)
2025-03-10	BUY	unknown	MORO合同会社 MORO, LLC	other	15.4M	¥1,216.5	-	-
2025-03-10	BUY	unknown	MORO合同会社 MORO, LLC	other	15.4M	¥1,216.5	-	-
2025-03-10	BUY	unknown	リープラピーティーイーエルティーディー REAPRA PTE.LTD.	other	1.1M	¥1,216.5	-	-
2025-03-10	BUY	unknown	リープラピーティーイーエルティーディー REAPRA PTE.LTD.	other	1.1M	¥1,216.5	-	-
2025-02-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	201.6K	¥1,265	-	¥255M ($1.6M)
2025-02-19	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	4.5M	¥1,265	+107.9%	¥5.6B ($36.2M)
2025-02-14	BUY	unknown	MORO合同会社 MORO, LLC	other	15.4M	¥1,321	-	-
2025-02-14	BUY	unknown	MORO合同会社 MORO, LLC	other	15.4M	¥1,321	-	-
2025-02-14	BUY	unknown	MORO合同会社 MORO, LLC	other	15.4M	¥1,321	-	-

Showing the 50 most recent of 90 filings.

Frequently asked questions

Who has been buying SMS Co., Ltd. stock?: 14 distinct investors have filed 26 disclosed large-shareholding filings in SMS Co., Ltd. (2175), most recently on 2026-05-13. 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 SMS Co., Ltd. have?: SMS Co., Ltd. has 26 buy-side and 22 sell-side disclosures on record, covering ¥52.3B ($337.5M) in total reported value, spanning 2021-04-22 to 2026-05-13.
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.