Who has been buying OPTEX Group Company, Limited stock?

9 distinct investors have filed 10 disclosed large-shareholding filings in OPTEX Group Company, Limited (6914), most recently on 2026-03-23. 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 OPTEX Group Company, Limited have?

OPTEX Group Company, Limited has 10 buy-side and 11 sell-side disclosures on record, covering ¥25.8B ($166.4M) in total reported value, spanning 2021-06-22 to 2026-03-23.

Where does StockDrifts get OPTEX Group Company, Limited 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.

OPTEX Group Company, Limited 6914

Company

オプテックスグループ株式会社OPTEX Group Company, Limited

Investors

Buys

Total Value

¥25.8B ($166.4M)

Avg Return

+22.13%

Last Filing

2026-03-23

OPTEX Group Company, Limited (6914) has 10 disclosed large-shareholding filings and 11 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥25.8B ($166.4M) in reported transaction value. The earliest filing StockDrifts holds for OPTEX Group Company, Limited is dated 2021-06-22; the most recent is 2026-03-23. 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 +22.13%, 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
2026-07-06	SELL	unknown	野村アセットマネジメント株式会社	other	1.9M	¥4,155	+9.3%	¥314M ($2.0M)
2026-07-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	29.0K	¥4,155	+9.3%	¥1.1B ($7.2M)
2026-07-06	BUY	Market Buy	野村證券株式会社	other	713.6K	¥4,155	-9.3%	¥2.1B ($13.9M)
2026-06-22	SELL	Market Buy	グランサム、マヨ、ヴァンオッテルローアンドカンパニーエルエルシー(Grantham, Mayo, Van Otterloo & Co. LLC) Grantham, Mayo, Van Otterloo & Co. LLC	activist	1.4M	¥4,255	+17.5%	¥2.2B ($14.3M)
2026-06-05	BUY	Market Buy	野村アセットマネジメント株式会社	other	2.0M	¥4,610	-6.3%	¥261M ($1.7M)
2026-06-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	298.2K	¥4,610	-6.3%	¥1.4B ($8.9M)
2026-06-05	BUY	Market Buy	野村證券株式会社	other	195.5K	¥4,610	-6.3%	¥609M ($3.9M)
2026-03-23	SELL	unknown	野村證券株式会社	other	65.0K	¥2,604	-11.6%	¥189M ($1.2M)
2026-03-23	BUY	unknown	野村アセットマネジメント株式会社	other	1.9M	¥2,604	+11.6%	¥5.5B ($35.8M)
2026-02-25	BUY	Market Buy	グランサム、マヨ、ヴァンオッテルローアンドカンパニーエルエルシー(Grantham, Mayo, Van Otterloo & Co. LLC) Grantham, Mayo, Van Otterloo & Co. LLC	activist	1.9M	¥3,140	-7.4%	¥5.9B ($38.2M)
2026-02-17	BUY	unknown	野村アセットマネジメント株式会社	other	1.8M	¥2,931	-0.8%	¥5.2B ($33.7M)
2026-02-17	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-415	¥2,931	+0.8%	¥1M ($8K)
2026-02-17	BUY	unknown	野村證券株式会社	other	144.0K	¥2,931	+0.8%	¥419M ($2.7M)
2025-12-19	BUY	unknown	野村アセットマネジメント株式会社	other	1.8M	¥2,710	+7.3%	¥5.2B ($33.6M)
2025-12-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	315.6K	¥2,710	+7.3%	¥918M ($5.9M)
2024-08-22	SELL	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	407.2K	¥1,668	-74.3%	¥31M ($203K)
2024-08-22	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.1M	¥1,668	-74.3%	¥617M ($4.0M)
2023-08-21	SELL	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	426.6K	¥1,632	-78.1%	¥209M ($1.4M)
2023-08-21	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.5M	¥1,632	-78.1%	¥499M ($3.2M)
2023-07-21	SELL	unknown	インベスコアドバイザーズインク(Invesco Advisers, Inc.) Invesco Advisers, Inc.	other	1.6M	¥1,835	-58.4%	¥831M ($5.4M)
2023-04-20	BUY	Market Buy	インベスコアドバイザーズインク(Invesco Advisers, Inc.) Invesco Advisers, Inc.	other	2.0M	¥1,973	+47.3%	¥67M ($432K)
2023-04-20	BUY	unknown	インベスコアドバイザーズインク(Invesco Advisers, Inc.) Invesco Advisers, Inc.	other	2.0M	¥1,973	+47.3%	¥67M ($432K)
2023-03-06	BUY	Market Buy	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.8M	¥2,042	+42.4%	¥378M ($2.4M)
2023-03-06	BUY	Market Buy	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	556.1K	¥2,042	+42.4%	¥532M ($3.4M)
2022-06-07	BUY	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.6M	¥2,143	+35.6%	¥3.4B ($22.2M)
2022-06-07	BUY	unknown	ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited	other	293.2K	¥2,143	+35.6%	¥628M ($4.1M)
2022-05-02	SELL	unknown	有本達也 Tatsuya Arimoto	strategic	1.9M	¥1,714	-69.6%	¥660M ($4.3M)
2021-09-07	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	1.5M	¥1,565	-85.8%	¥1.0B ($6.7M)
2021-07-26	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	2.1M	¥1,762	-65.0%	¥1.2B ($7.5M)
2021-06-22	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	2.8M	¥1,943	-49.6%	¥982M ($6.3M)

Frequently asked questions

Who has been buying OPTEX Group Company, Limited stock?: 9 distinct investors have filed 10 disclosed large-shareholding filings in OPTEX Group Company, Limited (6914), most recently on 2026-03-23. 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 OPTEX Group Company, Limited have?: OPTEX Group Company, Limited has 10 buy-side and 11 sell-side disclosures on record, covering ¥25.8B ($166.4M) in total reported value, spanning 2021-06-22 to 2026-03-23.
Where does StockDrifts get OPTEX Group Company, Limited 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 OPTEX Group Company, Limited. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.