Who has been buying Medical Data Vision Co., Ltd. stock?

14 distinct investors have filed 33 disclosed large-shareholding filings in Medical Data Vision Co., Ltd. (3902), most recently on 2026-02-20. 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 Medical Data Vision Co., Ltd. have?

Medical Data Vision Co., Ltd. has 33 buy-side and 13 sell-side disclosures on record, covering ¥19.6B ($126.3M) in total reported value, spanning 2021-08-18 to 2026-02-20.

Where does StockDrifts get Medical Data Vision Co., Ltd. insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

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.

Medical Data Vision Co., Ltd. 3902

Company

メディカル・データ・ビジョン株式会社Medical Data Vision Co., Ltd.

Investors

Buys

Total Value

¥19.6B ($126.3M)

Avg Return

+79.84%

Last Filing

2026-02-20

Medical Data Vision Co., Ltd. (3902) has 33 disclosed large-shareholding filings and 13 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥19.6B ($126.3M) in reported transaction value. The earliest filing StockDrifts holds for Medical Data Vision Co., Ltd. is dated 2021-08-18; the most recent is 2026-02-20. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +79.84%, 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
2026-02-20	BUY	Market Buy	ゴールドマン・サックス・アンド・カンパニー・エルエルシー Goldman Sachs & Co. LLC	other	0	¥1,680	-0.2%	-
2026-02-20	SELL	Market Buy	ゴールドマン・サックス・インターナショナル Goldman Sachs International	other	70.3K	¥1,680	-0.2%	¥118M ($764K)
2026-02-20	BUY	Market Buy	ゴールドマン・サックス証券株式会社	other	3.7K	¥1,680	+0.2%	¥6M ($40K)
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	79.7K	¥1,682	-0.1%	¥134M ($865K)
2026-02-19	BUY	unknown	野村アセットマネジメント株式会社	other	647.6K	¥1,682	+0.1%	¥1.1B ($7.0M)
2026-02-19	SELL	unknown	野村證券株式会社	other	5.9K	¥1,682	-0.1%	¥10M ($64K)
2026-02-10	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings Co., Ltd.	passive	14.5M	¥1,680	+0.2%	¥24.4B ($157.2M)
2026-02-09	BUY	private	日本生命保険相互会社 Nippon Life Insurance Company	activist	20.1M	¥1,682	+0.1%	¥9.4B ($60.5M)
2026-02-06	SELL	unknown	株式会社メディパルホールディングス MEDIPAL HOLDINGS CORPORATION	-	0	¥1,683	-0.1%	¥5.4B ($34.9M)
2026-02-04	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.1M	¥1,681	-0.2%	¥61M ($391K)
2026-01-22	BUY	unknown	ゴールドマン・サックス・アンド・カンパニー・エルエルシー Goldman Sachs & Co. LLC	other	0	¥1,690	-0.4%	-
2026-01-22	BUY	unknown	ゴールドマン・サックス・インターナショナル Goldman Sachs International	other	2.3M	¥1,690	-0.4%	¥3.8B ($24.5M)
2026-01-22	BUY	unknown	ゴールドマン・サックス証券株式会社	other	-2.1K	¥1,690	-0.4%	¥4M ($23K)
2026-01-21	BUY	unknown	野村アセットマネジメント株式会社	other	646.4K	¥1,689	-0.3%	¥1.1B ($7.0M)
2026-01-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.5M	¥1,689	-0.3%	¥2.5B ($16.1M)
2025-12-24	BUY	negotiated	株式会社メディパルホールディングス MEDIPAL HOLDINGS CORPORATION	strategic	3.2M	¥1,687	-0.2%	¥5.4B ($35.0M)
2025-12-22	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	14.5M	¥1,686	-0.1%	¥661M ($4.3M)
2024-10-21	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	14.1M	¥530	+217.7%	¥216M ($1.4M)
2024-09-30	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	13.7M	¥538	+213.0%	¥226M ($1.5M)
2024-09-06	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	13.3M	¥525	+220.8%	¥225M ($1.5M)
2024-07-03	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	12.9M	¥609	+176.5%	¥293M ($1.9M)
2024-05-30	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	12.4M	¥500	+236.8%	¥212M ($1.4M)
2024-03-26	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	12.0M	¥575	+192.9%	¥237M ($1.5M)
2024-03-11	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	11.5M	¥555	+203.4%	¥229M ($1.5M)
2024-03-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.6M	¥560	-200.7%	¥356M ($2.3M)
2024-01-05	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	11.1M	¥667	+152.5%	¥267M ($1.7M)
2023-11-16	BUY	negotiated	株式会社メディパルホールディングス MEDIPAL HOLDINGS CORPORATION	strategic	3.2M	¥678	+148.4%	¥2.2B ($14.1M)
2023-09-29	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	10.7M	¥805	+109.2%	¥329M ($2.1M)
2023-09-21	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	10.3M	¥791	+112.9%	¥345M ($2.2M)
2023-09-11	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	9.9M	¥787	+114.0%	¥328M ($2.1M)
2023-08-25	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	9.5M	¥659	+155.5%	¥264M ($1.7M)
2023-06-07	SELL	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	unknown	0	¥746	-125.7%	¥33M ($212K)
2023-06-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.2M	¥746	+125.7%	¥1.6B ($10.6M)
2022-06-07	BUY	Market Buy	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	43.5K	¥946	+78.0%	¥41M ($265K)
2022-06-07	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	3.2M	¥946	+78.0%	¥386M ($2.5M)
2022-03-22	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings, Inc.	passive	9.1M	¥1,092	+54.2%	¥463M ($3.0M)
2022-01-31	BUY	Market Buy	レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc.	passive	37.4K	¥1,002	+68.1%	¥3.1B ($20.3M)
2022-01-31	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings Co., Ltd.	passive	8.6M	¥1,002	+68.1%	¥84M ($543K)
2022-01-18	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings Co., Ltd.	passive	8.6M	¥1,151	+46.3%	¥465M ($3.0M)
2022-01-18	SELL	Market Buy	レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc.	passive	469.8K	¥1,151	-46.3%	¥433M ($2.8M)
2021-12-23	SELL	Market Buy	レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc.	passive	846.4K	¥1,199	-40.5%	¥490M ($3.2M)
2021-12-23	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings Co., Ltd.	passive	8.2M	¥1,199	+40.5%	¥9.8B ($63.1M)
2021-12-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.8M	¥1,341	+25.6%	¥676M ($4.4M)
2021-12-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	14.6K	¥1,341	+25.6%	¥2.1B ($13.4M)
2021-12-06	SELL	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.1M	¥1,284	-31.1%	¥385M ($2.5M)
2021-12-06	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	149.0K	¥1,284	-31.1%	¥447M ($2.9M)
2021-12-06	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	188.0K	¥1,284	+31.1%	¥5M ($33K)
2021-08-25	SELL	Market Buy	レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc.	passive	1.3M	¥1,647	-2.3%	¥534M ($3.4M)
2021-08-25	SELL	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	0	¥1,647	-2.3%	¥165M ($1.1M)
2021-08-25	BUY	Market Buy	SBIホールディングス株式会社 SBI Holdings Co., Ltd.	passive	8.2M	¥1,647	+2.3%	¥13.4B ($86.6M)

Showing the 50 most recent of 53 filings.

Frequently asked questions

Who has been buying Medical Data Vision Co., Ltd. stock?: 14 distinct investors have filed 33 disclosed large-shareholding filings in Medical Data Vision Co., Ltd. (3902), most recently on 2026-02-20. 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 Medical Data Vision Co., Ltd. have?: Medical Data Vision Co., Ltd. has 33 buy-side and 13 sell-side disclosures on record, covering ¥19.6B ($126.3M) in total reported value, spanning 2021-08-18 to 2026-02-20.
Where does StockDrifts get Medical Data Vision Co., Ltd. insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
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.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Medical Data Vision Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.