Who has been buying Tobu Railway Co., Ltd. stock?

21 distinct investors have filed 20 disclosed large-shareholding filings in Tobu Railway Co., Ltd. (9001), 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 Tobu Railway Co., Ltd. have?

Tobu Railway Co., Ltd. has 20 buy-side and 26 sell-side disclosures on record, covering ¥44.5B ($286.8M) in total reported value, spanning 2022-03-22 to 2026-05-12.

Where does StockDrifts get Tobu Railway Co., 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.

Tobu Railway Co., Ltd. 9001

Company

東武鉄道株式会社Tobu Railway Co., Ltd.

Investors

Buys

Total Value

¥44.5B ($286.8M)

Avg Return

-3.44%

Last Filing

2026-05-12

Tobu Railway Co., Ltd. (9001) has 20 disclosed large-shareholding filings and 26 disclosed disposals on record, filed by 21 distinct investors. Together those filings cover ¥44.5B ($286.8M) in reported transaction value. The earliest filing StockDrifts holds for Tobu Railway Co., Ltd. is dated 2022-03-22; 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 -3.44%, 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
2026-05-12	BUY	unknown	野村アセットマネジメント株式会社	other	9.4M	¥2,806	+0.9%	¥26.3B ($169.4M)
2026-05-12	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	599.1K	¥2,806	+0.9%	¥1.7B ($10.8M)
2026-05-12	BUY	unknown	野村證券株式会社	other	25.1K	¥2,806	+0.9%	¥70M ($455K)
2025-09-19	BUY	unknown	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	other	1.4M	¥2,698.5	+7.1%	¥16.3B ($105.1M)
2025-09-19	SELL	unknown	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	4.0M	¥2,698.5	-7.1%	¥54M ($350K)
2025-09-19	SELL	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	5.7M	¥2,698.5	-7.1%	¥1.2B ($7.7M)
2024-09-24	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	8.6M	¥2,530	+14.2%	¥3.8B ($24.3M)
2024-09-24	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	-47.8K	¥2,530	-14.2%	¥9.5B ($61.4M)
2024-09-24	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	313.8K	¥2,530	+14.2%	¥916M ($5.9M)
2024-09-05	SELL	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	6.5M	¥2,554.5	-13.1%	¥161M ($1.0M)
2024-09-05	SELL	unknown	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	other	1.4M	¥2,554.5	-13.1%	¥1.6B ($10.4M)
2024-09-05	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	4.2M	¥2,554.5	-13.1%	¥161M ($1.0M)
2024-06-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	7.5M	¥2,682.5	+7.7%	¥20.1B ($129.4M)
2024-06-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	3.9M	¥2,682.5	+7.7%	¥10.4B ($67.1M)
2024-06-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	-39.2K	¥2,682.5	+7.7%	-
2024-06-06	SELL	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	189.8K	¥2,726.5	-6.0%	¥114M ($738K)
2024-06-06	SELL	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	1.6M	¥2,726.5	-6.0%	¥4.3B ($27.7M)
2024-06-06	SELL	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	2.1M	¥2,726.5	-6.0%	¥7.3B ($46.9M)
2024-06-06	SELL	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	359.0K	¥2,726.5	-6.0%	¥4.5B ($28.8M)
2024-06-06	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	511.0K	¥2,726.5	+6.0%	¥343M ($2.2M)
2024-06-06	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	314.7K	¥2,726.5	+6.0%	¥858M ($5.5M)
2024-06-06	SELL	Market Buy	ブラックロック・インベストメント・マネジメント・エルエルシー BlackRock Investment Management LLC	passive	5.6K	¥2,726.5	-6.0%	¥572M ($3.7M)
2024-06-06	SELL	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	3.8M	¥2,726.5	-6.0%	¥801M ($5.2M)
2024-05-21	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	4.2M	¥2,795	+3.4%	¥645M ($4.2M)
2024-05-21	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	6.5M	¥2,795	-3.4%	¥2.9B ($18.9M)
2024-05-21	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	2.1M	¥2,795	-3.4%	¥1.9B ($12.1M)
2023-12-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	5.0M	¥3,747	+22.9%	¥2.5B ($16.2M)
2023-12-22	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.6M	¥3,747	-22.9%	¥2.2B ($14.2M)
2023-12-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	3.9M	¥3,747	-22.9%	¥14.5B ($93.7M)
2023-07-05	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	4.1M	¥3,673	-21.3%	¥1.9B ($12.4M)
2023-07-05	SELL	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	222.8K	¥3,673	+21.3%	¥1.2B ($8.0M)
2023-07-05	SELL	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	3.1M	¥3,673	+21.3%	¥539M ($3.5M)
2023-07-05	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	4.8M	¥3,673	-21.3%	¥2.6B ($16.9M)
2023-07-05	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	2.0M	¥3,673	-21.3%	¥3.9B ($25.4M)
2023-07-05	BUY	Market Buy	ブラックロック・ライフ・リミテッド BlackRock Life Limited	passive	57.0K	¥3,673	-21.3%	¥22.1B ($142.7M)
2023-07-05	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	379.8K	¥3,673	-21.3%	¥385M ($2.5M)
2023-07-05	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	322.7K	¥3,673	-21.3%	¥1.2B ($7.6M)
2023-07-05	BUY	Market Buy	ブラックロック・インベストメント・マネジメント・エルエルシー BlackRock Investment Management LLC	passive	216.9K	¥3,673	-21.3%	¥797M ($5.1M)
2023-02-22	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	3.9M	¥2,939	+1.7%	¥2.1B ($13.5M)
2023-02-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	5.7M	¥2,939	+1.7%	¥5.4B ($35.0M)
2023-02-22	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.0M	¥2,939	+1.7%	¥555M ($3.6M)
2023-02-20	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.9M	¥3,005	-3.8%	¥378M ($2.4M)
2023-02-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	4.6M	¥3,005	+3.8%	¥6.0B ($38.6M)
2023-02-20	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.9M	¥3,005	+3.8%	¥1.6B ($10.2M)
2022-04-06	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	4.0M	¥2,956	+2.3%	¥62M ($400K)
2022-04-06	BUY	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	7.6M	¥2,956	-2.3%	¥558M ($3.6M)
2022-04-06	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	2.7M	¥2,956	+2.3%	¥3.0B ($19.2M)
2022-03-22	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	2.5M	¥2,945	+1.9%	¥3.0B ($19.1M)
2022-03-22	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.7M	¥2,945	-1.9%	¥989M ($6.4M)
2022-03-22	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	6.6M	¥2,945	+1.9%	¥4.8B ($30.7M)

Frequently asked questions

Who has been buying Tobu Railway Co., Ltd. stock?: 21 distinct investors have filed 20 disclosed large-shareholding filings in Tobu Railway Co., Ltd. (9001), 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 Tobu Railway Co., Ltd. have?: Tobu Railway Co., Ltd. has 20 buy-side and 26 sell-side disclosures on record, covering ¥44.5B ($286.8M) in total reported value, spanning 2022-03-22 to 2026-05-12.
Where does StockDrifts get Tobu Railway Co., 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 Tobu Railway Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.