Who has been buying SUSMED, Inc. stock?

11 distinct investors have filed 31 disclosed large-shareholding filings in SUSMED, Inc. (4263), most recently on 2025-01-07. 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 SUSMED, Inc. have?

SUSMED, Inc. has 31 buy-side and 21 sell-side disclosures on record, covering ¥23.9B ($154.3M) in total reported value, spanning 2021-12-27 to 2025-01-07.

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.

SUSMED, Inc. 4263

Company

株式会社サスメドSUSMED, Inc.

Investors

Buys

Total Value

¥23.9B ($154.3M)

Avg Return

-16.17%

Last Filing

2025-01-07

SUSMED, Inc. (4263) has 31 disclosed large-shareholding filings and 21 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥23.9B ($154.3M) in reported transaction value. The earliest filing StockDrifts holds for SUSMED, Inc. is dated 2021-12-27; the most recent is 2025-01-07. Across these filings the average return since disclosure is -16.17%, 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
2026-09-02	SELL	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	675.2K	¥441	+0.5%	¥86M ($557K)
2025-01-07	BUY	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	868.3K	¥625	-29.8%	¥543M ($3.5M)
2024-02-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	425.8K	¥664	+33.9%	¥365M ($2.4M)
2024-02-06	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	9.4K	¥665	-34.0%	¥8M ($50K)
2024-02-06	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	602.2K	¥665	-34.0%	¥396M ($2.6M)
2024-02-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	61.7K	¥665	+34.0%	¥48M ($308K)
2024-02-06	SELL	unknown	りそなアセットマネジメント株式会社 Resona Asset Management Co., Ltd.	other	0	¥665	+34.0%	¥690M ($4.5M)
2024-02-02	SELL	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	572.7K	¥740	+40.7%	¥202M ($1.3M)
2023-12-21	BUY	Market Buy	りそなアセットマネジメント株式会社 Resona Asset Management Co., Ltd.	other	1.0M	¥1,259	-65.1%	¥256M ($1.7M)
2023-10-31	SELL	unknown	上野太郎 Ueno Taro	activist	6.9M	¥1,400	+68.6%	¥345M ($2.2M)
2023-07-19	BUY	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	839.9K	¥1,613	-72.8%	¥1.4B ($8.7M)
2023-07-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	967.9K	¥1,660	+73.5%	¥324M ($2.1M)
2023-04-21	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.2M	¥1,440	-69.5%	¥302M ($1.9M)
2023-04-21	SELL	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	100	¥1,440	+69.5%	¥36M ($230K)
2023-03-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	722.0K	¥1,204	-63.5%	¥869M ($5.6M)
2023-03-20	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-2.0K	¥1,204	-22.4%	-
2023-03-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	131.3K	¥1,204	-63.5%	¥158M ($1.0M)
2023-03-06	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	155.9K	¥1,339	-67.2%	¥20M ($128K)
2023-03-06	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	606.0K	¥1,339	-67.2%	¥110M ($710K)
2023-03-06	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	-3.0K	¥1,339	+30.3%	¥304M ($2.0M)
2023-02-21	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	140.9K	¥1,344	+67.3%	¥367M ($2.4M)
2023-02-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	224.0K	¥1,344	-67.3%	¥99M ($641K)
2023-02-21	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	523.7K	¥1,344	+67.3%	¥35M ($228K)
2023-01-11	BUY	unknown	りそなアセットマネジメント株式会社 Resona Asset Management Co.,Ltd.	other	816.9K	¥1,388	-68.4%	¥1.1B ($7.3M)
2023-01-11	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	939.2K	¥1,388	-68.4%	¥1.3B ($8.3M)
2023-01-11	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	24.8K	¥1,388	-	¥34M ($222K)
2023-01-10	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	411.5K	¥1,266	-65.3%	¥387M ($2.5M)
2023-01-10	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	148.2K	¥1,266	+65.3%	¥381M ($2.5M)
2023-01-10	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	547.1K	¥1,266	-	-
2022-12-21	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	105.6K	¥1,230	-	¥130M ($838K)
2022-12-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	448.7K	¥1,230	-64.3%	¥96M ($620K)
2022-12-21	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	545.2K	¥1,230	+64.3%	¥50M ($323K)
2022-12-13	SELL	Market Buy	Beyond Next Ventures株式会社 Beyond Next Ventures Inc.	passive	812.4K	¥1,840	+76.1%	¥758M ($4.9M)
2022-12-05	SELL	Market Buy	Beyond Next Ventures株式会社 Beyond Next Ventures Inc.	passive	1.2M	¥1,254	+65.0%	¥208M ($1.3M)
2022-11-18	SELL	Market Buy	Beyond Next Ventures株式会社 Beyond Next Ventures Inc.	passive	1.4M	¥1,350	+67.5%	¥226M ($1.5M)
2022-11-08	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.1M	¥1,112	-60.5%	¥183M ($1.2M)
2022-08-05	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	953.8K	¥1,118	-60.7%	¥1.1B ($6.9M)
2022-07-25	BUY	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	636.9K	¥1,073	-59.1%	¥675M ($4.4M)
2022-07-25	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	48.7K	¥1,073	-59.1%	¥22M ($144K)
2022-07-21	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.5K	¥1,071	-59.0%	¥295M ($1.9M)
2022-07-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	368.4K	¥1,071	-59.0%	¥187M ($1.2M)
2022-07-21	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	583.3K	¥1,071	+59.0%	¥154M ($996K)
2022-07-08	BUY	Market Buy	SBIインベストメント株式会社 SBI Investment Co., Ltd.	passive	806.9K	¥985	-55.4%	¥786M ($5.1M)
2022-07-08	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	27.7K	¥985	-	¥27M ($176K)
2022-05-19	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	47.5K	¥838	+47.6%	¥59M ($382K)
2022-05-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	191.2K	¥838	-47.6%	¥120M ($773K)
2022-05-19	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	720.1K	¥838	-47.6%	¥58M ($373K)
2022-04-27	BUY	unknown	上野太郎 Ueno Taro	activist	6.9M	¥1,063	-	¥241M ($1.6M)
2022-04-27	BUY	unknown	上野太郎 Ueno Taro	activist	6.9M	¥1,063	-	¥7.4B ($47.5M)
2022-02-21	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	117.9K	¥1,049	-58.1%	¥124M ($798K)

Showing the 50 most recent of 59 filings.

Frequently asked questions

Who has been buying SUSMED, Inc. stock?: 11 distinct investors have filed 31 disclosed large-shareholding filings in SUSMED, Inc. (4263), most recently on 2025-01-07. 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 SUSMED, Inc. have?: SUSMED, Inc. has 31 buy-side and 21 sell-side disclosures on record, covering ¥23.9B ($154.3M) in total reported value, spanning 2021-12-27 to 2025-01-07.
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.