Who has been buying Comture Corporation stock?

13 distinct investors have filed 9 disclosed large-shareholding filings in Comture Corporation (3844), most recently on 2025-05-09. 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 Comture Corporation have?

Comture Corporation has 9 buy-side and 23 sell-side disclosures on record, covering ¥7.8B ($50.1M) in total reported value, spanning 2021-04-19 to 2025-05-09.

Where does StockDrifts get Comture Corporation 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.

Comture Corporation 3844

Company

コムチュア株式会社Comture Corporation

Investors

Buys

Total Value

¥7.8B ($50.1M)

Avg Return

-28.24%

Last Filing

2025-05-09

Comture Corporation (3844) has 9 disclosed large-shareholding filings and 23 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥7.8B ($50.1M) in reported transaction value. The earliest filing StockDrifts holds for Comture Corporation is dated 2021-04-19; the most recent is 2025-05-09. 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 -28.24%, 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
2026-07-22	BUY	unknown	野村證券株式会社	other	658.5K	¥1,354	+8.7%	¥892M ($5.8M)
2026-07-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	134.9K	¥1,354	+8.7%	¥183M ($1.2M)
2026-07-22	BUY	unknown	野村アセットマネジメント株式会社	other	822.9K	¥1,354	+8.7%	¥1.1B ($7.2M)
2025-05-09	SELL	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	1.5M	¥1,783	+20.0%	¥1.0B ($6.7M)
2025-04-22	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	2.1M	¥1,656	-13.8%	¥3.4B ($22.0M)
2025-04-07	SELL	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	1.6M	¥1,375	-3.8%	¥647M ($4.2M)
2025-03-24	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	2.0M	¥1,736	-17.8%	¥677M ($4.4M)
2025-03-24	BUY	Market Buy	UBS Europe SE	other	17.0K	¥1,736	-17.8%	¥2.4B ($15.4M)
2025-02-21	BUY	Market Buy	UBS Europe SE	other	236.3K	¥1,896	-24.7%	¥448M ($2.9M)
2025-02-21	SELL	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	1.7M	¥1,896	+24.7%	¥92M ($592K)
2025-01-10	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	1.7M	¥2,123	-32.8%	¥3.6B ($23.3M)
2024-05-30	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	1.3M	¥1,779	+19.8%	¥591M ($3.8M)
2024-02-15	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	1.6M	¥1,711	+16.6%	¥612M ($4.0M)
2024-01-19	SELL	unknown	インベスコアドバイザーズインク(Invesco Advisors, Inc.) Invesco Advisors, Inc.	other	1.5M	¥1,820	+21.6%	¥604M ($3.9M)
2024-01-16	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.0M	¥1,887	+24.4%	¥645M ($4.2M)
2023-12-21	SELL	unknown	インベスコアドバイザーズインク(Invesco Advisors, Inc.) Invesco Advisors, Inc.	other	1.9M	¥1,772	+19.5%	¥760M ($4.9M)
2023-11-07	SELL	unknown	インベスコアドバイザーズインク(Invesco Advisors, Inc.) Invesco Advisors, Inc.	other	2.3M	¥2,006	+28.9%	¥770M ($5.0M)
2023-10-17	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.3M	¥2,233	+36.1%	¥749M ($4.8M)
2023-07-06	SELL	unknown	インベスコアドバイザーズインク(Invesco Advisors, Inc.) Invesco Advisors, Inc.	other	2.7M	¥1,964	+27.3%	¥716M ($4.6M)
2023-07-03	SELL	unknown	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	unknown	0	¥2,050	+30.4%	¥19M ($119K)
2023-07-03	SELL	unknown	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	24.3K	¥2,050	+30.4%	¥324M ($2.1M)
2023-07-03	BUY	unknown	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	151.0K	¥2,050	-30.4%	¥178M ($1.2M)
2023-07-03	SELL	unknown	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	537.0K	¥2,050	+30.4%	¥159M ($1.0M)
2023-04-21	BUY	unknown	インベスコアドバイザーズインク(Invesco Advisors Invesco Advisors, Inc.	other	3.1M	¥1,978	-27.9%	¥517M ($3.3M)
2023-04-21	BUY	unknown	インベスコアドバイザーズインク(Invesco Advisors Invesco Advisors, Inc.	other	3.1M	¥1,978	-27.9%	¥517M ($3.3M)
2023-04-21	SELL	unknown	インベスコ・アセット・マネジメント株式会社 Invesco Asset Management (Japan) Limited	other	0	¥1,978	+27.9%	¥96M ($617K)
2023-04-21	SELL	unknown	インベスコ・アセット・マネジメント株式会社 Invesco Asset Management (Japan) Limited	other	0	¥1,978	+27.9%	¥96M ($617K)
2023-01-19	BUY	unknown	有限会社コム Comu Co., Ltd	strategic	6.5M	¥2,376	-39.9%	¥15.5B ($100.3M)
2023-01-19	BUY	unknown	亀井貴裕 Takahiro Kamei	strategic	199.9K	¥2,376	-39.9%	¥475M ($3.1M)
2023-01-19	SELL	unknown	向浩一(相続人代表亀井真紀子) Koichi Mukai (Heir Representative Makiko Kamei)	unknown	0	¥2,376	+39.9%	¥1.8B ($11.8M)
2022-11-09	SELL	unknown	有限会社コム Comu Co., Ltd	strategic	6.5M	¥2,558	+44.2%	¥99M ($639K)
2022-11-09	SELL	unknown	向浩一(相続人代表亀井真紀子) Koichi Mukai (Heir Representative Makiko Kamei)	activist	771.9K	¥2,558	+44.2%	¥8M ($53K)
2022-11-09	BUY	unknown	亀井貴裕 Takahiro Kamei	strategic	199.6K	¥2,558	-44.2%	¥511M ($3.3M)
2022-10-07	BUY	Market Buy	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.7M	¥2,349	-39.3%	¥765M ($4.9M)
2022-07-26	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.4M	¥2,956	+51.7%	¥1.0B ($6.7M)
2022-06-27	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.7M	¥2,641	+46.0%	¥17M ($110K)
2022-06-02	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.7M	¥2,758	+48.3%	¥916M ($5.9M)
2021-04-19	BUY	Market Buy	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	3.0M	¥2,673	-46.6%	¥1.1B ($7.0M)
2021-04-19	SELL	Market Buy	カバウター・マネージメント・エルエルシー (Kabouter Management, LLC) Kabouter Management, LLC	passive	1.3M	¥2,673	+46.6%	¥1.1B ($7.2M)

Frequently asked questions

Who has been buying Comture Corporation stock?: 13 distinct investors have filed 9 disclosed large-shareholding filings in Comture Corporation (3844), most recently on 2025-05-09. 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 Comture Corporation have?: Comture Corporation has 9 buy-side and 23 sell-side disclosures on record, covering ¥7.8B ($50.1M) in total reported value, spanning 2021-04-19 to 2025-05-09.
Where does StockDrifts get Comture Corporation 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 Comture Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.