Who has been buying 株式会社エコノス stock?

7 distinct investors have filed 3 disclosed large-shareholding filings in 株式会社エコノス (3136), most recently on 2025-10-23. 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 株式会社エコノス have?

株式会社エコノス has 3 buy-side and 9 sell-side disclosures on record, spanning 2021-11-26 to 2025-10-23.

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.

株式会社エコノス 3136

Company

株式会社エコノス

Investors

Buys

Total Value

—

Avg Return

—

Last Filing

2025-10-23

株式会社エコノス (3136) has 3 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 7 distinct investors. The earliest filing StockDrifts holds for 株式会社エコノス is dated 2021-11-26; the most recent is 2025-10-23.

Price & insider activity (12 months)

No price data available

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2025-10-23	BUY	acquisition	株式会社ハードオフコーポレーション HARD OFF CORPORATION Co., Ltd.	activist	1.3M	-	-	-
2025-10-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	unknown	0	-	-	-
2025-10-02	SELL	unknown	ブックオフグループホールディングス株式会社 BOOKOFF GROUP HOLDINGS LIMITED	unknown	0	-	-	-
2025-09-29	BUY	Market Buy	株式会社ハードオフコーポレーション HARD OFF CORPORATION Co., Ltd.	activist	1.3M	-	-	-
2025-09-29	SELL	Market Buy	木下勝寿 Kinoshita Katsuhisa	passive	0	-	-	-
2025-09-26	SELL	unknown	石澤淳一 junichi ishizawa	activist	0	-	-	-
2025-09-26	SELL	negotiated	長谷川勝也 katsuya hasegawa	activist	0	-	-	-
2025-09-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	74.5K	-	-	-
2025-08-19	SELL	Market Buy	木下勝寿 Kinoshita Katsuhisa	passive	371.0K	-	-	-
2025-08-15	SELL	negotiated	ブックオフグループホールディングス株式会社 BOOKOFF GROUP HOLDINGS LIMITED	strategic	81.0K	-	-	-
2021-12-15	SELL	Market Buy	マイルストーン・キャピタル・マネジメント株式会社 Milestone Capital Management,Ltd.	passive	35.0K	-	-	-
2021-11-26	SELL	unknown	株式会社ハードオフコーポレーション HARD OFF CORPORATION Co,Ltd.	other	210.4K	-	-	-

Frequently asked questions

Who has been buying 株式会社エコノス stock?: 7 distinct investors have filed 3 disclosed large-shareholding filings in 株式会社エコノス (3136), most recently on 2025-10-23. 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 株式会社エコノス have?: 株式会社エコノス has 3 buy-side and 9 sell-side disclosures on record, spanning 2021-11-26 to 2025-10-23.
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.