Who has been buying Kamigumi Co., Ltd. stock?

6 distinct investors have filed 7 disclosed large-shareholding filings in Kamigumi Co., Ltd. (9364), most recently on 2025-12-12. 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 Kamigumi Co., Ltd. have?

Kamigumi Co., Ltd. has 7 buy-side and 3 sell-side disclosures on record, covering ¥47.8B ($308.2M) in total reported value, spanning 2021-04-08 to 2025-12-12.

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.

Kamigumi Co., Ltd. 9364

Company

株式会社上組Kamigumi Co., Ltd.

Investors

Buys

Total Value

¥47.8B ($308.2M)

Avg Return

+67.38%

Last Filing

2025-12-12

Kamigumi Co., Ltd. (9364) has 7 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥47.8B ($308.2M) in reported transaction value. The earliest filing StockDrifts holds for Kamigumi Co., Ltd. is dated 2021-04-08; the most recent is 2025-12-12. Across these filings the average return since disclosure is +67.38%, 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
2026-09-07	SELL	unknown	野村アセットマネジメント株式会社	other	4.0M	¥4,873	+0.0%	¥6.1B ($39.2M)
2026-09-07	BUY	unknown	野村證券株式会社	other	217.3K	¥4,873	-	¥1.1B ($6.8M)
2026-09-07	BUY	Market Buy	株式会社杉村倉庫	strategic	123.9K	¥4,873	-0.0%	¥52M ($335K)
2025-12-12	BUY	Market Buy	かみぐみ共栄会理事長谷川龍二 RYUJI TANIGAWA	strategic	7.5M	¥5,082	-4.1%	¥5.5B ($35.3M)
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	1.8M	¥4,564	-6.8%	¥3.8B ($24.8M)
2025-09-19	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	2.7M	¥4,564	-6.8%	¥146M ($941K)
2024-02-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	5.5M	¥3,447	+41.3%	¥18.9B ($121.9M)
2024-02-22	BUY	unknown	株式会社杉村倉庫 Sugimura Warehouse Co., Ltd.	strategic	123.9K	¥3,447	+41.3%	¥427M ($2.8M)
2023-12-06	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	2.9M	¥3,443	+41.5%	¥9.9B ($63.6M)
2023-12-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	2.8M	¥3,443	+41.5%	¥9.5B ($61.2M)
2022-07-13	BUY	Market Buy	かみぐみ共栄会理事長谷川龍二 RYUJI TANIGAWA	strategic	7.3M	¥2,676	+82.1%	¥3.3B ($21.1M)
2022-06-13	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	4.7M	¥2,584	-88.5%	¥3.5B ($22.5M)
2021-04-08	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	6.5M	¥2,135	+128.2%	¥13.9B ($89.8M)

Frequently asked questions

Who has been buying Kamigumi Co., Ltd. stock?: 6 distinct investors have filed 7 disclosed large-shareholding filings in Kamigumi Co., Ltd. (9364), most recently on 2025-12-12. 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 Kamigumi Co., Ltd. have?: Kamigumi Co., Ltd. has 7 buy-side and 3 sell-side disclosures on record, covering ¥47.8B ($308.2M) in total reported value, spanning 2021-04-08 to 2025-12-12.
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.