Who has been buying Nomura Research Institute, Ltd. stock?

21 distinct investors have filed 41 disclosed large-shareholding filings in Nomura Research Institute, Ltd. (4307), most recently on 2026-03-18. 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 Nomura Research Institute, Ltd. have?

Nomura Research Institute, Ltd. has 41 buy-side and 26 sell-side disclosures on record, covering ¥517.3B ($3.3B) in total reported value, spanning 2021-04-01 to 2026-03-18.

Where does StockDrifts get Nomura Research Institute, 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.

Nomura Research Institute, Ltd. 4307

Company

株式会社野村総合研究所Nomura Research Institute, Ltd.

Investors

Buys

Total Value

¥517.3B ($3.3B)

Avg Return

+24.58%

Last Filing

2026-03-18

Nomura Research Institute, Ltd. (4307) has 41 disclosed large-shareholding filings and 26 disclosed disposals on record, filed by 21 distinct investors. Together those filings cover ¥517.3B ($3.3B) in reported transaction value. The earliest filing StockDrifts holds for Nomura Research Institute, Ltd. is dated 2021-04-01; the most recent is 2026-03-18. 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 +24.58%, 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
2026-03-18	SELL	Market Buy	ブラックロック・ジャパン株式会社	passive	8.0M	¥4,301	-15.4%	¥39.8B ($256.5M)
2026-03-18	BUY	Market Buy	ブラックロック・インベストメント・マネジメント(ユーケー)リミテッドLimited) BlackRock Investment Management (UK	passive	2.6M	¥4,301	+15.4%	¥12.9B ($83.3M)
2026-03-18	BUY	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ.(BlackRock Institutional Trust Company	passive	6.2M	¥4,301	+15.4%	¥30.7B ($198.0M)
2026-03-18	BUY	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	9.5M	¥4,301	+15.4%	¥47.3B ($305.0M)
2026-03-18	BUY	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	4.2M	¥4,301	+15.4%	¥21.1B ($135.8M)
2026-03-18	BUY	Market Buy	ブラックロック・アセット・マネジメント・カナダ・リミテッド BlackRock Asset Management Canada Limited	passive	838.1K	¥4,301	-15.4%	¥4.2B ($26.8M)
2026-03-18	BUY	Market Buy	ブラックロック(ルクセンブルグ)エス・エーS.A.) BlackRock (Luxembourg	passive	627.7K	¥4,301	-15.4%	¥3.1B ($20.1M)
2026-03-18	BUY	Market Buy	ブラックロック・ファンド・マネジャーズ・リミテッド BlackRock Fund Managers Limited	passive	1.8M	¥4,301	+15.4%	¥8.7B ($56.2M)
2026-03-18	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.5M	¥4,301	+15.4%	¥7.4B ($47.8M)
2026-03-18	BUY	Market Buy	ブラックロック・フィナンシャル・マネジメント・インク(BlackRock Financial Management	passive	626.3K	¥4,301	-15.4%	¥3.1B ($20.1M)
2026-03-18	BUY	Market Buy	ブラックロック・アドバイザーズ・エルエルシー(BlackRock Advisers	passive	602.8K	¥4,301	-15.4%	¥3.0B ($19.3M)
2025-01-06	BUY	unknown	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	passive	16.1M	¥4,591	+8.2%	¥74.1B ($477.9M)
2025-01-06	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	23.6M	¥4,591	+8.2%	¥10.4B ($67.1M)
2025-01-06	BUY	unknown	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	98.7M	¥4,591	+8.2%	¥453.2B ($2.9B)
2025-01-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	17.2M	¥4,591	-8.2%	¥11.2B ($72.3M)
2024-10-09	BUY	unknown	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	passive	16.1M	¥5,183	-4.2%	¥83.6B ($539.5M)
2024-10-09	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	21.3M	¥5,183	+4.2%	¥11.7B ($75.8M)
2024-10-09	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	19.6M	¥5,183	-4.2%	¥9.3B ($60.3M)
2024-10-09	BUY	unknown	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	98.7M	¥5,183	-4.2%	¥511.6B ($3.3B)
2024-10-07	SELL	Market Buy	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	passive	16.1M	¥5,121	+3.0%	¥24.4B ($157.5M)
2024-10-07	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	23.6M	¥5,121	-3.0%	¥44.6B ($288.1M)
2024-10-07	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	-1.9M	¥5,121	+3.0%	¥9.5B ($61.5M)
2024-10-07	BUY	Market Buy	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	98.7M	¥5,121	-3.0%	¥24.1B ($155.5M)
2024-10-07	SELL	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	17.8M	¥5,121	+3.0%	¥2.4B ($15.4M)
2024-04-05	BUY	Market Buy	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	passive	20.9M	¥4,222	+17.6%	¥1.7B ($11.1M)
2024-04-05	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	14.9M	¥4,222	+17.6%	¥8.8B ($57.0M)
2024-04-05	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-9.7K	¥4,222	+17.6%	-
2024-04-05	BUY	Market Buy	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	93.9M	¥4,222	+17.6%	¥8.6B ($55.4M)
2024-04-05	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	18.3M	¥4,222	+17.6%	¥6.1B ($39.6M)
2023-12-07	SELL	Market Buy	MFSインベストメント・マネジメント株式会社 MFS Investment Management K.K.	passive	323.1K	¥4,148	-19.7%	¥1.5B ($9.5M)
2023-12-07	BUY	Market Buy	マサチューセッツ・ファイナンシャル・サービセズ・カンパニー Massachusetts Financial Services Company	passive	24.3M	¥4,148	+19.7%	¥99.5B ($642.1M)
2023-11-20	BUY	Market Buy	ブラックロック・インベストメント・マネジメント(ユーケー)リミテッドLimited) BlackRock Investment Management (UK	passive	719.2K	¥4,157	+19.4%	¥3.0B ($19.3M)
2023-11-20	BUY	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	7.5M	¥4,157	+19.4%	¥31.1B ($200.4M)
2023-11-20	BUY	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ.(BlackRock Institutional Trust Company BlackRock Institutional Trust Company, N.A.	passive	5.5M	¥4,157	+19.4%	¥22.8B ($147.0M)
2023-11-20	BUY	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	3.5M	¥4,157	+19.4%	¥14.7B ($94.7M)
2023-11-20	BUY	Market Buy	ブラックロック・ファンド・マネジャーズ・リミテッド BlackRock Fund Managers Limited	passive	1.7M	¥4,157	+19.4%	¥7.0B ($44.9M)
2023-11-20	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.2M	¥4,157	+19.4%	¥5.0B ($32.0M)
2023-11-20	BUY	Market Buy	ブラックロック・アドバイザーズ・エルエルシー(BlackRock Advisers BlackRock Advisers, LLC	passive	596.8K	¥4,157	+19.4%	¥2.5B ($16.0M)
2023-11-20	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	9.2M	¥4,157	+19.4%	¥38.3B ($247.4M)
2023-07-05	SELL	unknown	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	strategic	20.9M	¥3,943	-25.9%	¥175.8B ($1.1B)
2023-07-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	13.1M	¥3,943	+25.9%	¥468M ($3.0M)
2023-07-05	BUY	unknown	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	93.9M	¥3,943	+25.9%	¥210.4B ($1.4B)
2023-07-05	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	17.2M	¥3,943	-25.9%	¥19.4B ($125.3M)
2023-05-10	BUY	Market Buy	マサチューセッツ・ファイナンシャル・サービセズ・カンパニー Massachusetts Financial Services Company	passive	30.6M	¥3,485	+42.5%	¥106.8B ($688.8M)
2023-05-10	BUY	Market Buy	MFSインベストメント・マネジメント株式会社 MFS Investment Management K.K.	passive	646.0K	¥3,485	+42.5%	¥2.3B ($14.5M)
2023-01-06	BUY	Market Buy	野村プロパティーズ株式会社 Nomura Properties Co., Ltd.	strategic	67.5M	¥3,100	+60.2%	¥209.3B ($1.4B)
2023-01-06	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	423.5K	¥3,100	-60.2%	¥94.8B ($611.4M)
2023-01-06	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	13.4M	¥3,100	-60.2%	¥379M ($2.4M)
2023-01-06	SELL	Market Buy	野村ホールディングス株式会社 Nomura Holdings, Inc.	strategic	41.8M	¥3,100	-60.2%	¥17.2B ($111.3M)
2023-01-06	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	22.8M	¥3,100	+60.2%	¥32.4B ($209.1M)

Showing the 50 most recent of 83 filings.

Frequently asked questions

Who has been buying Nomura Research Institute, Ltd. stock?: 21 distinct investors have filed 41 disclosed large-shareholding filings in Nomura Research Institute, Ltd. (4307), most recently on 2026-03-18. 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 Nomura Research Institute, Ltd. have?: Nomura Research Institute, Ltd. has 41 buy-side and 26 sell-side disclosures on record, covering ¥517.3B ($3.3B) in total reported value, spanning 2021-04-01 to 2026-03-18.
Where does StockDrifts get Nomura Research Institute, 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 Nomura Research Institute, Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.