Who has been buying Tsubaki Nakashima Co., Ltd. stock?

11 distinct investors have filed 39 disclosed large-shareholding filings in Tsubaki Nakashima Co., Ltd. (6464), most recently on 2025-10-21. 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 Tsubaki Nakashima Co., Ltd. have?

Tsubaki Nakashima Co., Ltd. has 39 buy-side and 15 sell-side disclosures on record, covering ¥33.9B ($218.6M) in total reported value, spanning 2021-04-22 to 2025-10-21.

Where does StockDrifts get Tsubaki Nakashima 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.

Tsubaki Nakashima Co., Ltd. 6464

Company

株式会社ツバキ・ナカシマTsubaki Nakashima Co., Ltd.

Investors

Buys

Total Value

¥33.9B ($218.6M)

Avg Return

-62.84%

Last Filing

2025-10-21

Tsubaki Nakashima Co., Ltd. (6464) has 39 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥33.9B ($218.6M) in reported transaction value. The earliest filing StockDrifts holds for Tsubaki Nakashima Co., Ltd. is dated 2021-04-22; the most recent is 2025-10-21. 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 -62.84%, 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
2025-10-21	BUY	unknown	アーカス・インベストメント・リミテッド Arcus Investment Limited Director/Executive Director Edward Cartwright	other	2.1M	¥399	-16.8%	¥835M ($5.4M)
2025-07-04	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	765.4K	¥345	-3.8%	¥4M ($28K)
2025-07-04	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	1.1M	¥345	+3.8%	¥165M ($1.1M)
2025-04-04	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	753.2K	¥359	+7.5%	¥13M ($87K)
2025-04-04	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	1.6M	¥359	+7.5%	¥193M ($1.2M)
2025-01-09	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	790.3K	¥454	+26.9%	¥25M ($158K)
2025-01-09	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	2.1M	¥454	-26.9%	¥127M ($816K)
2024-11-21	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	843.8K	¥535	-37.9%	¥2M ($14K)
2024-11-21	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	1.9M	¥535	-37.9%	¥89M ($574K)
2024-11-19	SELL	Market Buy	ジュピター・アセット・マネジメント・リミテッド(Jupiter Asset Management, Limited) Jupiter Asset Management, Limited	passive	1.1M	¥538	+38.3%	¥528M ($3.4M)
2024-08-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	839.8K	¥623	-46.7%	¥132M ($853K)
2024-08-06	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	1.7M	¥623	+46.7%	¥21M ($134K)
2024-04-04	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	1.7M	¥850	-60.9%	¥187M ($1.2M)
2024-04-04	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	629.7K	¥850	-60.9%	¥25M ($160K)
2024-01-19	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	597.8K	¥730	-54.5%	¥436M ($2.8M)
2024-01-19	BUY	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	1.5M	¥730	-54.5%	¥1.1B ($7.1M)
2023-11-16	BUY	Market Buy	エーエージーエス・インベストメント・インク(AAGS Investment, Inc.) AAGS Investment, Inc.	passive	18.8M	¥745	-55.4%	¥14.0B ($90.6M)
2023-08-04	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	576.2K	¥789	+57.9%	¥158M ($1.0M)
2023-08-04	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	1.3M	¥789	+57.9%	¥223M ($1.4M)
2023-07-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	776.3K	¥814	-59.2%	¥54M ($350K)
2023-07-06	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	1.6M	¥814	+59.2%	¥81M ($524K)
2023-06-06	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	712.9K	¥860	+61.4%	¥637M ($4.1M)
2023-06-06	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	1.7M	¥860	-61.4%	¥32M ($208K)
2023-03-20	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	60.5K	¥899	-63.1%	¥54M ($351K)
2023-03-20	BUY	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	1.8M	¥899	-63.1%	¥1.6B ($10.0M)
2023-03-06	BUY	unknown	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	2.2M	¥1,056	-68.6%	¥2.3B ($15.0M)
2023-03-06	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	1.7M	¥1,056	+68.6%	¥527M ($3.4M)
2023-03-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.5M	¥1,056	-68.6%	¥44M ($283K)
2023-03-06	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	60.5K	¥1,056	+68.6%	¥9M ($57K)
2023-01-10	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	2.2M	¥1,025	-67.6%	¥154M ($990K)
2023-01-10	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	1.4M	¥1,025	-67.6%	¥9M ($55K)
2022-12-06	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	1.4M	¥1,003	-66.9%	¥42M ($269K)
2022-12-06	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	2.0M	¥1,003	-66.9%	¥113M ($727K)
2022-11-21	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	1.4M	¥1,032	-67.8%	¥326M ($2.1M)
2022-11-21	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	1.9M	¥1,032	-67.8%	¥129M ($831K)
2022-10-06	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	1.0M	¥1,212	-72.6%	¥302M ($2.0M)
2022-10-06	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	1.8M	¥1,212	-72.6%	¥207M ($1.3M)
2022-09-06	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	794.2K	¥1,159	-71.3%	¥106M ($684K)
2022-09-06	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	1.6M	¥1,159	-71.3%	¥188M ($1.2M)
2022-07-06	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	702.0K	¥881	+62.3%	¥95M ($614K)
2022-07-06	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	1.5M	¥881	-62.3%	¥161M ($1.0M)
2022-04-06	BUY	Market Buy	ジュピター・アセット・マネジメント・リミテッド(Jupiter Asset Management, Limited) Jupiter Asset Management, Limited	passive	2.1M	¥950	-65.0%	¥2.0B ($12.8M)
2022-03-23	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.8M	¥957	-65.3%	¥1.7B ($11.1M)
2022-03-23	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	122.2K	¥957	-65.3%	¥117M ($754K)
2022-02-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	2.3M	¥1,449	-77.1%	¥620M ($4.0M)
2022-02-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	4.7K	¥1,449	-77.1%	¥163M ($1.0M)
2022-02-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	-122	¥1,449	-77.1%	-
2021-12-07	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	68.9K	¥1,472	-77.5%	¥37M ($237K)
2021-12-07	BUY	Market Buy	ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co	other	3.4M	¥1,472	-77.5%	¥1.3B ($8.1M)
2021-09-24	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.7M	¥1,606	+79.3%	¥914M ($5.9M)

Showing the 50 most recent of 58 filings.

Frequently asked questions

Who has been buying Tsubaki Nakashima Co., Ltd. stock?: 11 distinct investors have filed 39 disclosed large-shareholding filings in Tsubaki Nakashima Co., Ltd. (6464), most recently on 2025-10-21. 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 Tsubaki Nakashima Co., Ltd. have?: Tsubaki Nakashima Co., Ltd. has 39 buy-side and 15 sell-side disclosures on record, covering ¥33.9B ($218.6M) in total reported value, spanning 2021-04-22 to 2025-10-21.
Where does StockDrifts get Tsubaki Nakashima 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 Tsubaki Nakashima Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.