Who has been buying Enigmo Inc. stock?

6 distinct investors have filed 3 disclosed large-shareholding filings in Enigmo Inc. (3665), most recently on 2025-10-03. 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 Enigmo Inc. have?

Enigmo Inc. has 3 buy-side and 4 sell-side disclosures on record, covering ¥3.8B ($24.8M) in total reported value, spanning 2021-04-05 to 2025-10-03.

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.

Enigmo Inc. 3665

Company

株式会社エニグモEnigmo Inc.

Investors

Buys

Total Value

¥3.8B ($24.8M)

Avg Return

-33.37%

Last Filing

2025-10-03

Enigmo Inc. (3665) has 3 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥3.8B ($24.8M) in reported transaction value. The earliest filing StockDrifts holds for Enigmo Inc. is dated 2021-04-05; the most recent is 2025-10-03. Across these filings the average return since disclosure is -33.37%, 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
2025-10-03	BUY	unknown	須田将啓 SYOKEI SUDA	activist	5.3M	¥406	-	-
2024-07-09	BUY	unknown	須田もも子 Momoko Suda	activist	35.0K	¥338	-	-
2024-07-09	BUY	unknown	須田将啓 Shokei Suda	activist	5.3M	¥338	-	-
2023-07-31	BUY	Market Buy	須田将啓 Shokei Suda	activist	5.3M	¥392	+4.1%	¥48M ($313K)
2023-07-31	BUY	Market Buy	須田もも子 Momoko Suda	activist	35.0K	¥392	-	-
2022-04-21	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	1.7M	¥538	-24.2%	¥919M ($5.9M)
2022-04-21	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	308.7K	¥538	+24.2%	¥44M ($281K)
2021-08-19	SELL	unknown	大和アセットマネジメント株式会社 Daiwa Asset Management Co.Ltd.	other	1.6M	¥1,412	+71.1%	¥753M ($4.9M)
2021-06-04	BUY	unknown	大和アセットマネジメント株式会社 Daiwa Asset Management Co.Ltd.	other	2.1M	¥1,348	-69.7%	¥2.9B ($18.5M)
2021-04-06	SELL	unknown	大和アセットマネジメント株式会社 Daiwa Asset Management Co.Ltd.	other	2.0M	¥1,179.993	+65.4%	¥559M ($3.6M)
2021-04-05	SELL	negotiated	ソニーグループ株式会社 Sony Group Corporation	strategic	10.0M	¥1,231.521	+66.9%	¥520M ($3.4M)

Frequently asked questions

Who has been buying Enigmo Inc. stock?: 6 distinct investors have filed 3 disclosed large-shareholding filings in Enigmo Inc. (3665), most recently on 2025-10-03. 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 Enigmo Inc. have?: Enigmo Inc. has 3 buy-side and 4 sell-side disclosures on record, covering ¥3.8B ($24.8M) in total reported value, spanning 2021-04-05 to 2025-10-03.
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.