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

11 distinct investors have filed 17 disclosed large-shareholding filings in Insource Co., Ltd. (6200), most recently on 2025-03-24. 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 Insource Co., Ltd. have?

Insource Co., Ltd. has 17 buy-side and 17 sell-side disclosures on record, covering ¥21.2B ($136.6M) in total reported value, spanning 2021-04-30 to 2025-03-24.

Where does StockDrifts get Insource 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.

Insource Co., Ltd. 6200

Company

株式会社インソースInsource Co., Ltd.

Investors

Buys

Total Value

¥21.2B ($136.6M)

Avg Return

-29.35%

Last Filing

2025-03-24

Insource Co., Ltd. (6200) has 17 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥21.2B ($136.6M) in reported transaction value. The earliest filing StockDrifts holds for Insource Co., Ltd. is dated 2021-04-30; the most recent is 2025-03-24. 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 -29.35%, 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
2025-03-24	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	3.7M	¥821	+16.0%	¥742M ($4.8M)
2025-03-13	SELL	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd.	other	4.1M	¥797	+13.4%	¥1.3B ($8.4M)
2025-02-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	4.6M	¥1,011	+31.8%	¥767M ($4.9M)
2025-02-07	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.	other	81.3K	¥1,011	+31.8%	¥17M ($111K)
2024-12-27	SELL	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd.	other	5.7M	¥1,133	+39.1%	¥1.2B ($7.9M)
2024-08-07	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.8M	¥821	-16.0%	¥3.1B ($19.8M)
2024-08-07	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	361.2K	¥821	-16.0%	¥175M ($1.1M)
2024-08-07	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	-6.4K	¥821	-16.0%	¥7M ($45K)
2024-05-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	4.5M	¥824	-16.3%	¥3.7B ($23.9M)
2024-05-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	146.2K	¥824	+16.3%	¥91M ($589K)
2024-05-07	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	-18.4K	¥824	+16.3%	¥1.4B ($9.2M)
2024-05-02	BUY	Market Buy	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd.	other	6.8M	¥779	-11.4%	¥777M ($5.0M)
2024-03-07	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	98.3K	¥875	-21.1%	¥86M ($555K)
2024-03-07	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	5.3M	¥875	-21.1%	¥709M ($4.6M)
2024-02-29	BUY	Market Buy	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd.	other	5.8M	¥881	-21.7%	¥1.1B ($7.3M)
2023-09-06	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	5.3M	¥1,105	-37.6%	¥885M ($5.7M)
2023-09-06	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	259.7K	¥1,105	-37.6%	¥122M ($790K)
2023-09-06	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	12.9K	¥1,105	-37.6%	¥14M ($92K)
2023-06-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	4.5M	¥1,276	-45.9%	¥5.7B ($36.8M)
2023-06-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	142.4K	¥1,276	-45.9%	¥182M ($1.2M)
2023-06-15	BUY	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	4.5M	¥1,261	-45.3%	¥5.7B ($36.8M)
2023-06-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	4.5M	¥1,340	+48.5%	¥1.3B ($8.5M)
2023-04-21	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.	other	77.0K	¥1,196	+42.3%	¥31M ($197K)
2023-04-21	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	5.5M	¥1,196	-42.3%	¥6.5B ($41.9M)
2023-03-17	SELL	unknown	BNYメロン・インベストメント・マネジメント・ジャパン株式会社 BNY Mellon Investment Management Japan Limited	other	0	¥1,386	+50.2%	¥62M ($403K)
2023-03-17	BUY	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd.	other	3.7M	¥1,386	-50.2%	¥5.1B ($32.9M)
2023-02-28	SELL	Market Buy	クープランド・カーディフ・アセット・マネジメント・エルエルピー(Coupland Cardiff Asset Management LLP) Coupland Cardiff Asset Management LLP	passive	4.2M	¥1,238	+44.3%	¥1.2B ($7.4M)
2022-09-13	SELL	unknown	株式会社ルプラス Luplus Co., Ltd.	strategic	13.0M	¥1,464.5	+52.9%	¥637M ($4.1M)
2022-09-13	BUY	unknown	舟橋孝之 funahashi takayuki	activist	2.7M	¥1,464.5	-52.9%	¥4.0B ($25.6M)
2022-06-30	BUY	unknown	BNYメロン・インベストメント・マネジメント・ジャパン株式会社 BNY Mellon Investment Management Japan Limited	other	2.3M	¥1,131	-39.0%	¥2.6B ($16.5M)
2022-06-02	SELL	unknown	株式会社ルプラス Luplus Co., Ltd.	strategic	13.4M	¥1,078	+36.0%	¥436M ($2.8M)
2022-06-02	BUY	unknown	株式会社ルプラス Luplus Co., Ltd.	strategic	13.9M	¥1,078	-36.0%	¥14.9B ($96.4M)
2022-06-02	SELL	unknown	舟橋孝之 funahashi takayuki	activist	2.7M	¥1,078	+36.0%	¥9M ($59K)
2022-06-02	SELL	unknown	舟橋孝之 funahashi takayuki	activist	2.7M	¥1,078	+36.0%	¥9M ($59K)
2022-03-07	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	49.8K	¥943	-26.8%	¥4M ($26K)
2022-03-07	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	¥943	-26.8%	¥418M ($2.7M)
2021-11-18	SELL	unknown	川端久美子 kawabata kumiko	strategic	1.9M	¥1,340.5	+48.5%	¥640M ($4.1M)
2021-11-18	BUY	unknown	川端久美子 kawabata kumiko	strategic	1.9M	¥1,340.5	-48.5%	¥640M ($4.1M)
2021-10-07	BUY	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.	other	47.4K	¥1,034.5	-33.3%	¥49M ($316K)
2021-10-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.7M	¥1,034.5	-33.3%	¥2.8B ($18.0M)
2021-04-30	SELL	unknown	BNYメロン・インベストメント・マネジメント・ジャパン株式会社 BNY Mellon Investment Management Japan Limited	other	2.0M	¥1,229.5	+43.9%	¥613M ($4.0M)

Frequently asked questions

Who has been buying Insource Co., Ltd. stock?: 11 distinct investors have filed 17 disclosed large-shareholding filings in Insource Co., Ltd. (6200), most recently on 2025-03-24. 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 Insource Co., Ltd. have?: Insource Co., Ltd. has 17 buy-side and 17 sell-side disclosures on record, covering ¥21.2B ($136.6M) in total reported value, spanning 2021-04-30 to 2025-03-24.
Where does StockDrifts get Insource 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 Insource Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.