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

6 distinct investors have filed 19 disclosed large-shareholding filings in Euglena Co., Ltd. (2931), most recently on 2026-04-06. 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 Euglena Co., Ltd. have?

Euglena Co., Ltd. has 19 buy-side and 15 sell-side disclosures on record, covering ¥28.0B ($180.7M) in total reported value, spanning 2021-04-22 to 2026-04-06.

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.

Euglena Co., Ltd. 2931

Company

株式会社ユーグレナEuglena Co., Ltd.

Investors

Buys

Total Value

¥28.0B ($180.7M)

Avg Return

-29.54%

Last Filing

2026-04-06

Euglena Co., Ltd. (2931) has 19 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥28.0B ($180.7M) in reported transaction value. The earliest filing StockDrifts holds for Euglena Co., Ltd. is dated 2021-04-22; the most recent is 2026-04-06. Across these filings the average return since disclosure is -29.54%, 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
2026-08-13	SELL	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	6.3M	¥352	+0.3%	¥1.7B ($10.9M)
2026-04-06	BUY	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	10.9M	¥415	-	¥578M ($3.7M)
2026-04-03	BUY	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	10.7M	¥407	-	¥639M ($4.1M)
2026-04-03	SELL	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	10.7M	¥407	+13.8%	¥639M ($4.1M)
2025-11-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	618.5K	¥427	-	¥264M ($1.7M)
2025-11-21	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	532.4K	¥427	+17.8%	¥1.4B ($9.1M)
2025-11-21	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.5M	¥427	-17.8%	¥6M ($38K)
2025-11-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.9M	¥423	-17.0%	¥1.6B ($10.5M)
2025-11-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.5M	¥423	-17.0%	¥1.5B ($9.6M)
2025-07-07	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	2.5M	¥402	+12.7%	¥351M ($2.3M)
2025-07-07	BUY	unknown	ノムラセキュリテーズインターナショナル NOMURA SECURITIES INTERNATIONAL,Inc.	unknown	0	¥402	-	-
2025-07-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.0M	¥402	-12.7%	¥16M ($106K)
2025-07-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	836.5K	¥402	-12.7%	¥2.7B ($17.7M)
2025-05-21	SELL	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	12.3M	¥455	+22.9%	¥633M ($4.1M)
2025-04-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	3.4M	¥451	-22.2%	¥1.5B ($9.8M)
2025-04-22	BUY	unknown	ノムラセキュリテーズインターナショナル NOMURA SECURITIES INTERNATIONAL,Inc.	other	0	¥451	-22.2%	-
2025-04-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.0M	¥451	-22.2%	¥1.3B ($8.6M)
2025-04-22	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	761.4K	¥451	-22.2%	¥343M ($2.2M)
2025-01-24	SELL	unknown	出雲充 Mitsuru Izumo	activist	12.6M	¥434	+19.1%	¥2.2B ($14.2M)
2025-01-24	BUY	unknown	出雲充 Mitsuru Izumo	activist	12.6M	¥434	-	¥2.2B ($14.2M)
2024-09-24	SELL	unknown	株式会社綺麗創造ホールディングス代表取締役山﨑智士 Kirei Creation Holdings Inc.	other	13.7M	¥462	+24.0%	¥1.8B ($11.5M)
2024-09-24	BUY	unknown	株式会社綺麗創造ホールディングス代表取締役山﨑智士 Kirei Creation Holdings Inc.	other	13.7M	¥462	-	¥1.8B ($11.5M)
2024-09-03	SELL	unknown	株式会社綺麗創造ホールディングス代表取締役山﨑智士 Kirei Creation Holdings Inc.	other	17.5M	¥514	+31.7%	¥112M ($723K)
2024-08-05	BUY	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	17.5M	¥469	-	-
2024-08-05	BUY	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	17.5M	¥469	-	-
2024-02-08	BUY	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	17.5M	¥651	-	¥11.4B ($73.6M)
2024-02-08	BUY	unknown	株式会社綺麗創造ホールディングス Kirei Creation Holdings Inc.	other	17.5M	¥651	-46.1%	¥11.4B ($73.6M)
2023-09-21	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	76.9K	¥777	+54.8%	¥2.0B ($13.0M)
2023-09-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	202.3K	¥777	-	¥157M ($1.0M)
2023-09-21	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.4M	¥777	-	-
2023-09-05	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.7M	¥833	-57.9%	¥2.2B ($14.4M)
2023-09-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.4M	¥833	-57.9%	¥2.8B ($18.2M)
2023-08-21	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	194.4K	¥785	+55.3%	¥2.0B ($12.8M)
2023-08-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	380.0K	¥785	-	¥298M ($1.9M)
2023-08-21	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.1M	¥785	+55.3%	¥101M ($652K)
2023-07-20	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.7M	¥896	-60.8%	¥63M ($406K)
2023-07-20	SELL	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.3M	¥896	+60.8%	¥147M ($947K)
2023-06-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.7M	¥909	-61.4%	¥2.4B ($15.6M)
2023-06-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.4M	¥909	-61.4%	¥3.1B ($20.2M)
2023-06-05	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	99.3K	¥898	+60.9%	¥2.2B ($14.1M)
2023-06-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	140.4K	¥898	-	¥126M ($814K)
2023-06-05	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.4M	¥898	+60.9%	¥53M ($339K)
2023-04-19	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.5M	¥894	-60.7%	¥2.2B ($14.5M)
2023-04-19	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.5M	¥894	-60.7%	¥3.1B ($20.1M)
2023-03-07	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	147.8K	¥959	+63.4%	¥2.3B ($15.1M)
2023-03-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	199.0K	¥959	-	¥191M ($1.2M)
2023-03-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.3M	¥959	-	-
2023-02-21	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	2.6M	¥957	-63.3%	¥2.5B ($16.0M)
2023-02-21	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.3M	¥957	-63.3%	¥3.2B ($20.5M)
2021-04-22	SELL	unknown	出雲充 Mitsuru Izumo	activist	12.3M	¥947	+62.9%	¥1.6B ($10.0M)

Frequently asked questions

Who has been buying Euglena Co., Ltd. stock?: 6 distinct investors have filed 19 disclosed large-shareholding filings in Euglena Co., Ltd. (2931), most recently on 2026-04-06. 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 Euglena Co., Ltd. have?: Euglena Co., Ltd. has 19 buy-side and 15 sell-side disclosures on record, covering ¥28.0B ($180.7M) in total reported value, spanning 2021-04-22 to 2026-04-06.
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.