Who has been buying Good Com Asset Co., Ltd. stock?

4 distinct investors have filed 5 disclosed large-shareholding filings in Good Com Asset Co., Ltd. (3475), most recently on 2025-11-07. 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 Good Com Asset Co., Ltd. have?

Good Com Asset Co., Ltd. has 5 buy-side and 8 sell-side disclosures on record, covering ¥942M ($6.1M) in total reported value, spanning 2022-03-23 to 2025-11-07.

Where does StockDrifts get Good Com Asset 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.

Good Com Asset Co., Ltd. 3475

Company

株式会社グッドコムアセットGood Com Asset Co., Ltd.

Investors

Buys

Total Value

¥942M ($6.1M)

Avg Return

+102.49%

Last Filing

2025-11-07

Good Com Asset Co., Ltd. (3475) has 5 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥942M ($6.1M) in reported transaction value. The earliest filing StockDrifts holds for Good Com Asset Co., Ltd. is dated 2022-03-23; the most recent is 2025-11-07. 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 +102.49%, 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
2026-08-03	BUY	unknown	長嶋紗也乃	strategic	32.0K	¥1,506	+4.6%	¥48M ($311K)
2026-08-03	BUY	unknown	株式会社long-island	strategic	4.5M	¥1,506	+4.6%	¥6.8B ($43.7M)
2026-08-03	BUY	unknown	長嶋弘子	strategic	3.4M	¥1,506	+4.6%	¥5.1B ($33.0M)
2026-08-03	SELL	negotiated	長嶋義和	activist	5.2M	¥1,506	-4.6%	¥32M ($208K)
2026-08-03	BUY	unknown	長嶋真央	strategic	32.0K	¥1,506	+4.6%	¥48M ($311K)
2026-08-03	BUY	Market Buy	長嶋佑哉	strategic	33.0K	¥1,506	+4.6%	¥5M ($30K)
2025-11-07	BUY	Market Buy	長嶋佑哉 Yuya Nagashima	strategic	32.0K	¥1,307	+28.1%	¥42M ($270K)
2025-11-07	SELL	Market Buy	株式会社long-island long-island Co., Ltd.	strategic	4.5M	¥1,307	-28.1%	¥4M ($26K)
2025-11-07	BUY	Market Buy	長嶋弘子 Hiroko Nagashima	strategic	3.4M	¥1,307	+28.1%	¥4.4B ($28.6M)
2025-11-07	BUY	negotiated	長嶋佑哉 Yuya Nagashima	strategic	32.0K	¥1,307	+28.1%	¥42M ($270K)
2025-11-07	SELL	negotiated	株式会社long-island long-island Co., Ltd.	strategic	4.5M	¥1,307	-28.1%	¥4M ($26K)
2025-11-07	BUY	negotiated	長嶋弘子 Hiroko Nagashima	strategic	3.4M	¥1,307	+28.1%	¥4.4B ($28.6M)
2025-11-07	BUY	negotiated	長嶋義和 yoshikazu nagashima	activist	5.2M	¥1,307	+28.1%	¥100M ($644K)
2025-11-07	BUY	Market Buy	長嶋義和 yoshikazu nagashima	activist	5.2M	¥1,307	+28.1%	¥100M ($644K)
2023-04-24	BUY	Market Buy	長嶋弘子 Hiroko Nagashima	strategic	3.4M	¥773	+116.6%	¥2.6B ($16.9M)
2023-04-24	BUY	negotiated	長嶋佑哉 Yuya Nagashima	strategic	32.0K	¥773	+116.6%	¥25M ($160K)
2023-04-24	BUY	negotiated	株式会社long-island long-island Co., Ltd.	strategic	4.5M	¥773	+116.6%	¥3.5B ($22.4M)
2023-04-24	BUY	negotiated	長嶋弘子 Hiroko Nagashima	strategic	3.4M	¥773	+116.6%	¥2.6B ($16.9M)
2023-04-24	BUY	Market Buy	長嶋佑哉 Yuya Nagashima	strategic	32.0K	¥773	+116.6%	¥25M ($160K)
2023-04-24	BUY	Market Buy	株式会社long-island long-island Co., Ltd.	strategic	4.5M	¥773	+116.6%	¥3.5B ($22.4M)
2023-04-24	BUY	Market Buy	長嶋義和 yoshikazu nagashima	activist	5.1M	¥773	+116.6%	¥9M ($61K)
2023-04-24	BUY	negotiated	長嶋義和 yoshikazu nagashima	activist	5.1M	¥773	+116.6%	¥9M ($61K)
2023-03-10	SELL	negotiated	株式会社long-island long-island Co., Ltd.	strategic	4.5M	¥872	-92.0%	¥8M ($52K)
2023-03-10	SELL	negotiated	長嶋義和 yoshikazu nagashima	activist	5.1M	¥872	-92.0%	¥11M ($69K)
2023-03-10	SELL	negotiated	長嶋弘子 Hiroko Nagashima	strategic	3.4M	¥872	-92.0%	¥8M ($52K)
2023-03-10	SELL	negotiated	長嶋佑哉 Yuya Nagashima	strategic	32.0K	¥872	-92.0%	¥266M ($1.7M)
2022-03-23	BUY	negotiated	長嶋佑哉 Yuya Nagashima	strategic	16.0K	¥518	+223.2%	¥8M ($53K)
2022-03-23	BUY	negotiated	株式会社long-island long-island Co., Ltd.	strategic	2.2M	¥518	+223.2%	¥723M ($4.7M)
2022-03-23	SELL	negotiated	長嶋弘子 Hiroko Nagashima	strategic	1.7M	¥518	-223.2%	¥3M ($20K)
2022-03-23	SELL	negotiated	長嶋義和 yoshikazu nagashima	activist	2.6M	¥518	-223.2%	¥727M ($4.7M)

Frequently asked questions

Who has been buying Good Com Asset Co., Ltd. stock?: 4 distinct investors have filed 5 disclosed large-shareholding filings in Good Com Asset Co., Ltd. (3475), most recently on 2025-11-07. 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 Good Com Asset Co., Ltd. have?: Good Com Asset Co., Ltd. has 5 buy-side and 8 sell-side disclosures on record, covering ¥942M ($6.1M) in total reported value, spanning 2022-03-23 to 2025-11-07.
Where does StockDrifts get Good Com Asset 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 Good Com Asset Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.