Who has been buying SmartDrive inc. stock?

6 distinct investors have filed 13 disclosed large-shareholding filings in SmartDrive inc. (5137), most recently on 2026-04-22. 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 SmartDrive inc. have?

SmartDrive inc. has 13 buy-side and 15 sell-side disclosures on record, covering ¥3.1B ($19.8M) in total reported value, spanning 2022-12-21 to 2026-04-22.

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.

SmartDrive inc. 5137

Company

株式会社スマートドライブSmartDrive inc.

Investors

Buys

Total Value

¥3.1B ($19.8M)

Avg Return

+2.29%

Last Filing

2026-04-22

SmartDrive inc. (5137) has 13 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥3.1B ($19.8M) in reported transaction value. The earliest filing StockDrifts holds for SmartDrive inc. is dated 2022-12-21; the most recent is 2026-04-22. Across these filings the average return since disclosure is +2.29%, 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
2026-08-20	SELL	unknown	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	1.8M	¥297	-4.4%	¥140M ($902K)
2026-04-22	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.3M	¥299	+3.7%	¥115M ($739K)
2026-04-06	SELL	unknown	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	2.2M	¥290	-6.9%	¥144M ($929K)
2026-03-05	SELL	unknown	株式会社OMU	activist	18.0M	¥283	-9.5%	¥13M ($83K)
2026-03-05	BUY	unknown	北川烈	activist	1.2M	¥283	+9.5%	¥42M ($269K)
2026-02-20	SELL	unknown	株式会社OMU	activist	18.0M	¥307	-1.0%	¥14M ($90K)
2026-02-20	SELL	unknown	北川烈	activist	1.0M	¥307	-1.0%	¥1M ($7K)
2025-12-19	SELL	unknown	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	2.7M	¥378	+18.0%	¥164M ($1.1M)
2025-09-25	SELL	negotiated	モノフル・ピーティーイー・リミテッド(Monoful Pte. Ltd.) Monoful Pte. Ltd.	strategic	1.6M	¥463	+33.0%	¥418M ($2.7M)
2025-09-19	SELL	unknown	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	3.2M	¥473	+34.5%	¥123M ($796K)
2025-07-08	SELL	unknown	株式会社OMU OMU Inc.	activist	18.0M	¥392	+20.9%	¥25M ($162K)
2025-07-08	SELL	unknown	北川烈 Retsu Kitagawa	activist	1.0M	¥392	+20.9%	¥1M ($10K)
2025-03-28	SELL	unknown	株式会社OMU OMU Inc.	activist	3.0M	¥315.67	+1.8%	¥3M ($17K)
2025-03-28	BUY	unknown	北川烈 Retsu Kitagawa	activist	171.8K	¥315.67	-	-
2025-02-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	316.9K	¥289.67	+7.0%	¥92M ($592K)
2024-10-01	SELL	unknown	株式会社OMU OMU Inc.	activist	3.0M	¥316.67	+2.1%	¥4M ($23K)
2024-10-01	SELL	unknown	北川烈 Retsu Kitagawa	activist	171.8K	¥316.67	+2.1%	¥202K ($1K)
2024-06-19	BUY	unknown	北川烈 Retsu Kitagawa	activist	171.8K	¥306.67	+1.1%	¥27M ($176K)
2024-06-19	SELL	unknown	株式会社OMU OMU Inc.	activist	3.0M	¥306.67	-1.1%	¥4M ($25K)
2023-10-02	SELL	unknown	株式会社OMU OMU Inc.	activist	3.0M	¥332.34	+6.7%	¥3M ($17K)
2023-10-02	SELL	unknown	北川烈 Retsu Kitagawa	activist	79.8K	¥332.34	+6.7%	¥4M ($28K)
2023-08-04	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	562.0K	¥428.34	-27.6%	¥34M ($219K)
2023-07-06	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	481.4K	¥554.18	-44.1%	¥40M ($259K)
2023-06-27	BUY	unknown	株式会社OMU OMU Inc.	activist	3.0M	¥539.18	-	-
2023-06-27	BUY	unknown	北川烈 Retsu Kitagawa	activist	92.3K	¥539.18	-	-
2023-06-06	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	409.0K	¥557.51	-44.4%	¥50M ($325K)
2023-05-18	BUY	unknown	株式会社OMU OMU Inc.	activist	3.0M	¥393.84	-21.3%	¥1.2B ($7.5M)
2023-05-09	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	318.8K	¥390.34	-20.6%	¥124M ($803K)
2023-02-17	BUY	Market Buy	モノフル・ピーティーイー・リミテッド(Monoful Pte. Ltd.) Monoful Pte. Ltd.	strategic	400.0K	¥310.67	-	-
2022-12-22	BUY	Market Buy	ティージェーニゼロイチゴーファンドエルピー TJ2015.FUND LP	passive	457.5K	¥190.84	-	¥87M ($563K)
2022-12-22	BUY	Market Buy	モノフル・ピーティーイー・リミテッド(Monoful Pte. Ltd.) Monoful Pte. Ltd.	strategic	400.0K	¥190.84	+62.4%	¥76M ($493K)
2022-12-22	BUY	Market Buy	ティージェーニゼロイチゴーファンドエルピー TJ2015.FUND LP	passive	457.5K	¥190.84	+62.4%	¥87M ($563K)
2022-12-21	BUY	unknown	株式会社OMU OMU Inc.	activist	3.0M	¥200.17	+54.9%	¥601M ($3.9M)
2022-12-21	BUY	unknown	株式会社OMU OMU Inc.	activist	3.0M	¥200.17	+54.9%	¥601M ($3.9M)

Frequently asked questions

Who has been buying SmartDrive inc. stock?: 6 distinct investors have filed 13 disclosed large-shareholding filings in SmartDrive inc. (5137), most recently on 2026-04-22. 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 SmartDrive inc. have?: SmartDrive inc. has 13 buy-side and 15 sell-side disclosures on record, covering ¥3.1B ($19.8M) in total reported value, spanning 2022-12-21 to 2026-04-22.
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.