Who has been buying Rasa Industries, Ltd. stock?

17 distinct investors have filed 32 disclosed large-shareholding filings in Rasa Industries, Ltd. (4022), most recently on 2026-05-12. 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 Rasa Industries, Ltd. have?

Rasa Industries, Ltd. has 32 buy-side and 23 sell-side disclosures on record, covering ¥931M ($6.0M) in total reported value, spanning 2021-04-06 to 2026-05-12.

Where does StockDrifts get Rasa Industries, 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.

Rasa Industries, Ltd. 4022

Company

ラサ工業株式会社Rasa Industries, Ltd.

Investors

Buys

Total Value

¥931M ($6.0M)

Avg Return

+285.90%

Last Filing

2026-05-12

Rasa Industries, Ltd. (4022) has 32 disclosed large-shareholding filings and 23 disclosed disposals on record, filed by 17 distinct investors. Together those filings cover ¥931M ($6.0M) in reported transaction value. The earliest filing StockDrifts holds for Rasa Industries, Ltd. is dated 2021-04-06; the most recent is 2026-05-12. 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 +285.90%, 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
2026-08-07	BUY	unknown	ゴールドマン・サックス・インターナショナル(Goldman Sachs International) Goldman Sachs International	other	2.0M	¥2,296	+3.2%	¥4.7B ($30.3M)
2026-06-05	SELL	unknown	ゴールドマン・サックス・インターナショナル(Goldman Sachs International) Goldman Sachs International	other	424.8K	¥2,296	+9.3%	¥3.6B ($23.5M)
2026-05-22	BUY	unknown	ゴールドマン・サックス・インターナショナル(Goldman Sachs International) Goldman Sachs International	other	2.0M	¥1,854	+21.0%	¥3.7B ($24.1M)
2026-05-12	SELL	unknown	アセットマネジメントOne株式会社	other	975.6K	¥2,432	+5.6%	¥1.1B ($7.2M)
2026-05-12	SELL	unknown	みずほ証券株式会社	other	51.6K	¥2,432	+5.6%	¥87M ($561K)
2026-05-12	BUY	unknown	株式会社みずほ銀行	strategic	1.3M	¥2,432	-5.6%	¥3.0B ($19.7M)
2025-09-19	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	300.0K	¥971	-83.0%	¥94M ($607K)
2025-08-06	SELL	negotiated	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	162.2K	¥871	-104.0%	¥28M ($179K)
2025-08-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	100.0K	¥871	+104.0%	¥87M ($562K)
2025-08-06	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	103.5K	¥871	-104.0%	¥42M ($272K)
2024-12-02	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	128.4K	¥536.8	+231.0%	¥69M ($445K)
2024-12-02	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	38.0K	¥536.8	+231.0%	¥20M ($131K)
2024-12-02	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	200.1K	¥536.8	+231.0%	¥107M ($693K)
2024-12-02	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	44.3K	¥536.8	+231.0%	¥24M ($153K)
2024-09-30	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	4.1K	¥536	-231.5%	¥18M ($115K)
2024-09-30	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	48.4K	¥536	+231.5%	¥426K ($3K)
2024-09-30	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	137.5K	¥536	-231.5%	¥37M ($239K)
2024-09-30	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	200.1K	¥536	+231.5%	¥107M ($692K)
2024-09-20	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	30.9K	¥540.4	-228.8%	¥63M ($407K)
2024-09-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	236.0K	¥540.4	+228.8%	¥429K ($3K)
2024-09-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	39.0K	¥540.4	+228.8%	¥21M ($136K)
2024-07-29	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	200.1K	¥566	+214.0%	¥113M ($731K)
2024-07-29	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	37.3K	¥566	+214.0%	¥4M ($23K)
2024-07-29	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	47.9K	¥566	+214.0%	¥12M ($78K)
2024-07-29	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	206.5K	¥566	+214.0%	¥27M ($177K)
2024-07-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	287.1K	¥593	+199.7%	¥92M ($593K)
2024-07-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	17.3K	¥593	+199.7%	¥471K ($3K)
2024-07-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	250.8K	¥593	+199.7%	¥149M ($960K)
2024-07-03	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	235.4K	¥623	+185.2%	¥147M ($946K)
2024-07-03	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	147.7K	¥623	+185.2%	¥92M ($594K)
2024-07-03	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	39.3K	¥623	+185.2%	¥24M ($158K)
2024-01-22	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	16.3K	¥439.8	+304.1%	¥7M ($46K)
2024-01-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	250.8K	¥439.8	+304.1%	¥110M ($712K)
2024-01-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	131.5K	¥439.8	+304.1%	¥58M ($373K)
2023-10-06	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	130.3K	¥396.2	-348.5%	¥32M ($205K)
2023-10-06	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	13.0K	¥396.2	+348.5%	¥5M ($33K)
2023-10-06	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	250.8K	¥396.2	+348.5%	¥99M ($641K)
2023-01-27	BUY	unknown	ラサ工業取引先持株会理事長船橋光和 Rasa Industries Business Partner Shareholding Association Chairman MITSUKAZU FUNAHASHI	other	398.0K	¥393.4	+351.7%	¥157M ($1.0M)
2022-12-06	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	228.7K	¥402.6	-341.4%	¥7M ($43K)
2022-12-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	62.7K	¥402.6	-341.4%	¥9M ($58K)
2022-12-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	46.2K	¥402.6	-341.4%	¥22M ($142K)
2022-11-07	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	101.2K	¥454.4	-291.1%	¥38M ($247K)
2022-11-07	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	245.2K	¥454.4	-291.1%	¥722K ($5K)
2022-11-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	85.4K	¥454.4	+291.1%	¥3M ($16K)
2022-10-20	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	397.3K	¥422.2	+320.9%	¥168M ($1.1M)
2022-10-05	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	247.1K	¥452.8	+292.4%	¥719K ($5K)
2022-10-05	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	79.8K	¥452.8	-292.4%	¥99M ($636K)
2022-10-05	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	185.4K	¥452.8	+292.4%	¥61M ($392K)
2022-08-19	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	245.3K	¥505	-251.9%	¥2M ($13K)
2022-08-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	297.3K	¥505	+251.9%	¥57M ($370K)

Showing the 50 most recent of 68 filings.

Frequently asked questions

Who has been buying Rasa Industries, Ltd. stock?: 17 distinct investors have filed 32 disclosed large-shareholding filings in Rasa Industries, Ltd. (4022), most recently on 2026-05-12. 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 Rasa Industries, Ltd. have?: Rasa Industries, Ltd. has 32 buy-side and 23 sell-side disclosures on record, covering ¥931M ($6.0M) in total reported value, spanning 2021-04-06 to 2026-05-12.
Where does StockDrifts get Rasa Industries, 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 Rasa Industries, Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.