Who has been buying Tadano Ltd. stock?

14 distinct investors have filed 13 disclosed large-shareholding filings in Tadano Ltd. (6395), most recently on 2026-04-09. 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 Tadano Ltd. have?

Tadano Ltd. has 13 buy-side and 17 sell-side disclosures on record, covering ¥53.5B ($345.5M) in total reported value, spanning 2021-09-21 to 2026-04-09.

Where does StockDrifts get Tadano 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.

Tadano Ltd. 6395

Company

株式会社タダノTadano Ltd.

Investors

Buys

Total Value

¥53.5B ($345.5M)

Avg Return

+29.22%

Last Filing

2026-04-09

Tadano Ltd. (6395) has 13 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥53.5B ($345.5M) in reported transaction value. The earliest filing StockDrifts holds for Tadano Ltd. is dated 2021-09-21; the most recent is 2026-04-09. 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 +29.22%, 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
2026-08-14	SELL	unknown	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	7.5M	¥1,431	+0.0%	¥1.9B ($12.4M)
2026-04-09	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	8.8M	¥1,439	+11.9%	¥2.0B ($13.0M)
2026-02-05	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	10.2M	¥1,265	-9.6%	¥1.7B ($11.0M)
2026-01-19	BUY	Market Buy	野村アセットマネジメント株式会社	other	8.6M	¥1,156	+19.9%	¥11.9B ($77.0M)
2026-01-19	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	159.5K	¥1,156	-19.9%	¥221M ($1.4M)
2026-01-19	BUY	Market Buy	野村證券株式会社	other	797.6K	¥1,156	-19.9%	¥1.1B ($7.1M)
2025-10-29	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	11.6M	¥1,090.5	-27.1%	¥1.5B ($9.7M)
2025-10-06	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	7.6M	¥1,055	+31.4%	¥1.6B ($10.0M)
2025-10-06	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	670.4K	¥1,055	+31.4%	¥21.9B ($141.0M)
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	3.1M	¥1,069	-29.6%	¥2.1B ($13.3M)
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	2.7M	¥1,069	-29.6%	¥540M ($3.5M)
2025-08-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	5.1M	¥1,131	-22.6%	¥1.0B ($6.5M)
2025-08-06	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	3.2M	¥1,131	-22.6%	¥776M ($5.0M)
2025-07-23	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.0M	¥1,089.5	+27.2%	¥2.1B ($13.7M)
2025-07-23	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	799	¥1,089.5	-27.2%	¥5.7B ($36.9M)
2025-07-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	6.1M	¥1,039.5	+33.3%	¥6.4B ($41.1M)
2025-07-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	462.2K	¥1,039.5	+33.3%	¥480M ($3.1M)
2025-07-14	BUY	acquisition	ジャパン・アクティベーション・キャピタル株式会社 Japan Activation Capital, Inc.	activist	14.0M	¥1,069	+29.6%	¥15.0B ($96.6M)
2025-03-24	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	13.0M	¥1,150	+20.5%	¥864M ($5.6M)
2024-10-22	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.3M	¥939	-47.6%	¥24M ($157K)
2024-10-22	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	strategic	110.4K	¥939	-47.6%	¥973M ($6.3M)
2024-10-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	5.2M	¥939	+47.6%	¥4.9B ($31.8M)
2024-09-24	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	5.2M	¥946	+46.5%	¥5.0B ($32.0M)
2024-09-24	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.3M	¥946	-46.5%	¥306M ($2.0M)
2024-09-24	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	strategic	1.2M	¥946	+46.5%	¥1.1B ($7.0M)
2024-07-29	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	3.4M	¥1,140	+21.6%	¥3.8B ($24.8M)
2024-07-29	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	144.6K	¥1,140	-21.6%	¥192M ($1.2M)
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	718.9K	¥1,140	+21.6%	¥369M ($2.4M)
2024-07-29	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.7M	¥1,140	-21.6%	¥871M ($5.6M)
2024-02-29	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	12.2M	¥1,266	-9.5%	¥1.8B ($11.3M)
2024-01-17	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	13.6M	¥1,182	-17.3%	¥1.6B ($10.4M)
2022-09-05	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	15.0M	¥929	+49.2%	¥1.2B ($7.9M)
2022-06-15	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	13.6M	¥957	+44.8%	¥1.3B ($8.2M)
2021-11-19	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	5.9M	¥1,167	+18.8%	¥952M ($6.1M)
2021-11-19	BUY	Market Buy	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	3.9M	¥1,167	+18.8%	¥801M ($5.2M)
2021-09-21	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	12.3M	¥1,197	-15.8%	¥1.6B ($10.1M)

Frequently asked questions

Who has been buying Tadano Ltd. stock?: 14 distinct investors have filed 13 disclosed large-shareholding filings in Tadano Ltd. (6395), most recently on 2026-04-09. 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 Tadano Ltd. have?: Tadano Ltd. has 13 buy-side and 17 sell-side disclosures on record, covering ¥53.5B ($345.5M) in total reported value, spanning 2021-09-21 to 2026-04-09.
Where does StockDrifts get Tadano 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 Tadano Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.