Who has been buying Convano Inc. stock?

9 distinct investors have filed 13 disclosed large-shareholding filings in Convano Inc. (6574), most recently on 2026-01-20. 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 Convano Inc. have?

Convano Inc. has 13 buy-side and 16 sell-side disclosures on record, covering ¥11.8B ($76.1M) in total reported value, spanning 2023-06-12 to 2026-01-20.

Where does StockDrifts get Convano Inc. 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.

Convano Inc. 6574

Company

株式会社コンヴァノConvano Inc.

Investors

Buys

Total Value

¥11.8B ($76.1M)

Avg Return

+558.85%

Last Filing

2026-01-20

Convano Inc. (6574) has 13 disclosed large-shareholding filings and 16 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥11.8B ($76.1M) in reported transaction value. The earliest filing StockDrifts holds for Convano Inc. is dated 2023-06-12; the most recent is 2026-01-20. 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 +558.85%, 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
2026-01-20	SELL	Market Buy	川口佑	activist	21.8M	¥136	+16.9%	¥2.5B ($15.9M)
2026-01-20	BUY	Market Buy	株式会社ディメンショナル	passive	47.3M	¥136	-16.9%	¥5.3B ($34.5M)
2026-01-20	SELL	Market Buy	川口佑	activist	21.8M	¥136	+16.9%	¥2.5B ($15.9M)
2026-01-20	BUY	Market Buy	株式会社ディメンショナル	passive	55.9M	¥136	-16.9%	¥6.3B ($40.8M)
2025-11-25	BUY	Market Buy	川口佑	activist	21.8M	¥108	-4.6%	¥2.5B ($15.9M)
2025-11-25	SELL	Market Buy	株式会社ディメンショナル	passive	37.3M	¥108	-4.6%	¥4.2B ($27.2M)
2025-11-10	SELL	Market Buy	川口佑 kawaguchi yu	activist	21.8M	¥129	+12.4%	¥13M ($85K)
2025-11-10	SELL	Market Buy	川口佑 kawaguchi yu	activist	21.8M	¥129	+12.4%	¥13M ($85K)
2025-11-10	SELL	Market Buy	株式会社ディメンショナル Dimensional Co., Ltd.	passive	45.9M	¥129	+12.4%	¥736M ($4.7M)
2025-11-10	SELL	Market Buy	株式会社ディメンショナル Dimensional Co., Ltd.	passive	45.9M	¥129	+12.4%	¥736M ($4.7M)
2025-10-28	SELL	Market Buy	川口佑 kawaguchi yu	activist	21.8M	¥159	+28.9%	¥16M ($104K)
2025-10-28	SELL	Market Buy	川口佑 kawaguchi yu	activist	21.8M	¥159	+28.9%	¥16M ($104K)
2025-10-28	SELL	Market Buy	株式会社ディメンショナル Dimensional Co., Ltd.	passive	51.6M	¥159	+28.9%	¥971M ($6.3M)
2025-10-28	SELL	Market Buy	株式会社ディメンショナル Dimensional Co., Ltd.	passive	51.6M	¥159	+28.9%	¥955M ($6.2M)
2025-09-24	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	79.3M	¥226	-50.0%	¥1.4B ($8.9M)
2025-09-24	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	79.3M	¥226	-50.0%	¥1.4B ($8.9M)
2025-09-24	SELL	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	79.3M	¥226	+50.0%	¥1.4B ($8.9M)
2025-09-02	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	8.5M	¥216	-47.7%	¥139M ($898K)
2025-09-02	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	8.5M	¥216	-47.7%	¥139M ($898K)
2025-09-02	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	8.5M	¥216	-47.7%	¥1.8B ($11.9M)
2025-08-19	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	9.2M	¥254.7	-55.6%	¥2.3B ($15.1M)
2025-08-19	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	9.2M	¥254.7	-55.6%	¥2.3B ($15.1M)
2025-08-19	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	9.2M	¥254.7	-55.6%	¥2.3B ($15.1M)
2025-07-29	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	918.1K	¥90.2	+25.3%	¥83M ($534K)
2025-07-29	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	918.1K	¥90.2	+25.3%	¥83M ($534K)
2025-07-29	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	918.1K	¥90.2	+25.3%	¥83M ($534K)
2025-07-29	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	918.1K	¥90.2	+25.3%	¥83M ($534K)
2025-07-24	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	918.1K	¥94.7	+19.3%	¥87M ($561K)
2025-07-24	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	918.1K	¥94.7	+19.3%	¥87M ($561K)
2025-07-24	BUY	Market Buy	株式会社ディメンショナル DIMENSIONAL,Ltd.	passive	918.1K	¥94.7	+19.3%	¥87M ($561K)
2024-09-09	BUY	Market Buy	山下奈津紀 Natsuki Yamashita	passive	200.8K	¥25.97	+335.1%	¥5M ($34K)
2024-09-09	BUY	Market Buy	株式会社メディカルフロンティア medical frontier co ltd	passive	72.4K	¥25.97	+335.1%	¥1M ($8K)
2024-08-30	BUY	Market Buy	山下奈津紀 Natsuki Yamashita	passive	200.8K	¥20	+465.0%	¥4M ($26K)
2024-08-30	BUY	Market Buy	山下奈津紀 Natsuki Yamashita	passive	200.8K	¥20	+465.0%	¥4M ($26K)
2024-08-30	BUY	Market Buy	株式会社メディカルフロンティア medical frontier co ltd	passive	27.3K	¥20	+465.0%	¥546K ($4K)
2024-08-30	BUY	Market Buy	株式会社メディカルフロンティア medical frontier co ltd	passive	27.3K	¥20	+465.0%	¥546K ($4K)
2024-08-16	BUY	unknown	川口佑 kawaguchi yu	activist	218.1K	¥13.87	+714.7%	¥3M ($19K)
2024-08-16	BUY	unknown	川口佑 kawaguchi yu	activist	218.1K	¥13.87	+714.7%	¥3M ($19K)
2024-06-10	BUY	unknown	川口佑 Kawaguchi Yu	activist	217.8K	¥15.14	+646.4%	¥3M ($21K)
2024-06-10	BUY	unknown	川口佑 Kawaguchi Yu	activist	217.8K	¥15.14	+646.4%	¥3M ($21K)
2024-04-22	BUY	Market Buy	株式会社NT代表取締役青木剛志 NT Co., Ltd.	passive	3.1M	¥9.43	+1098.3%	¥30M ($190K)
2024-04-17	SELL	Market Buy	青木剛志 Aoki Tsuyoshi	passive	0	¥7.8	-1348.7%	¥24M ($158K)
2024-02-15	BUY	Market Buy	青木剛志 Aoki Tsuyoshi	passive	3.1M	¥9	+1155.6%	¥10M ($63K)
2024-02-15	BUY	Market Buy	青木剛志 Aoki Tsuyoshi	passive	3.1M	¥9	+1155.6%	¥10M ($63K)
2023-06-16	SELL	Market Buy	インテグラルパートナーズ (ケイマン) ツー (エー) リミテッドII Integral Partners (Cayman	passive	0	¥7.27	-1454.3%	¥595K ($4K)
2023-06-16	SELL	Market Buy	インテグラル株式会社 Integral Corporation	passive	0	¥7.27	-1454.3%	¥912K ($6K)
2023-06-16	SELL	Market Buy	インテグラル・パートナーズ株式会社 Integral Partners Corporation	passive	0	¥7.27	-1454.3%	¥6M ($42K)
2023-06-12	BUY	Market Buy	青木剛志 Tsuyoshi Aoki	passive	1.1M	¥7.2	+1469.4%	¥8M ($50K)

Frequently asked questions

Who has been buying Convano Inc. stock?: 9 distinct investors have filed 13 disclosed large-shareholding filings in Convano Inc. (6574), most recently on 2026-01-20. 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 Convano Inc. have?: Convano Inc. has 13 buy-side and 16 sell-side disclosures on record, covering ¥11.8B ($76.1M) in total reported value, spanning 2023-06-12 to 2026-01-20.
Where does StockDrifts get Convano Inc. 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 Convano Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.