Who has been buying Tazmo Co., Ltd. stock?

32 distinct investors have filed 126 disclosed large-shareholding filings in Tazmo Co., Ltd. (6266), most recently on 2026-05-13. 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 Tazmo Co., Ltd. have?

Tazmo Co., Ltd. has 126 buy-side and 80 sell-side disclosures on record, covering ¥50.8B ($327.7M) in total reported value, spanning 2021-03-22 to 2026-05-13.

Where does StockDrifts get Tazmo 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.

Tazmo Co., Ltd. 6266

Company

タツモ株式会社Tazmo Co., Ltd.

Investors

Buys

126

Total Value

¥50.8B ($327.7M)

Avg Return

+28.16%

Last Filing

2026-05-13

Tazmo Co., Ltd. (6266) has 126 disclosed large-shareholding filings and 80 disclosed disposals on record, filed by 32 distinct investors. Together those filings cover ¥50.8B ($327.7M) in reported transaction value. The earliest filing StockDrifts holds for Tazmo Co., Ltd. is dated 2021-03-22; the most recent is 2026-05-13. 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 +28.16%, 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	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	93.1K	¥3,370	+19.3%	¥314M ($2.0M)
2026-08-07	BUY	unknown	野村アセットマネジメント株式会社	other	695.5K	¥3,370	+19.3%	¥2.3B ($15.1M)
2026-07-09	SELL	unknown	アモーヴァ・アセットマネジメント株式会社	other	1.2M	¥4,710	+28.4%	¥720M ($4.6M)
2026-07-09	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	other	266.9K	¥4,710	-28.4%	¥49M ($316K)
2026-05-22	BUY	Market Buy	M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investments (Singapore	passive	1.1M	¥3,810	+21.6%	¥786M ($5.1M)
2026-05-22	BUY	Market Buy	M&Gインベストメント・マネジメント・リミテッド、M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investment Management Limited	passive	1.1M	¥3,810	+21.6%	¥786M ($5.1M)
2026-05-13	BUY	unknown	鳥越琢史	strategic	258.2K	¥3,380	+15.2%	¥873M ($5.6M)
2026-05-13	SELL	unknown	株式会社大江屋	strategic	2.2M	¥3,380	-15.2%	¥742M ($4.8M)
2026-05-13	BUY	unknown	鳥越琢史	strategic	258.2K	¥3,380	+15.2%	¥873M ($5.6M)
2026-05-13	SELL	unknown	株式会社大江屋	strategic	2.2M	¥3,380	-15.2%	¥747M ($4.8M)
2026-05-13	BUY	unknown	鳥越琢史	strategic	258.2K	¥3,380	+15.2%	¥873M ($5.6M)
2026-05-13	SELL	unknown	株式会社大江屋	strategic	2.2M	¥3,380	-15.2%	¥747M ($4.8M)
2026-05-11	BUY	Market Buy	野村アセットマネジメント株式会社	other	528.1K	¥3,360	+15.9%	¥20M ($129K)
2026-05-11	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	66.7K	¥3,360	-15.9%	¥414M ($2.7M)
2026-05-11	SELL	unknown	野村證券株式会社	other	8.0K	¥3,360	-15.9%	¥80M ($515K)
2026-04-27	BUY	Market Buy	アモーヴァ・アセットマネジメント株式会社	other	1.4M	¥2,805	+39.0%	¥425M ($2.7M)
2026-04-27	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	other	256.9K	¥2,805	+39.0%	¥8M ($54K)
2026-03-24	BUY	Market Buy	アモーヴァ・アセットマネジメント株式会社	other	1.2M	¥2,205	+25.0%	¥3.4B ($22.1M)
2026-03-24	SELL	Market Buy	三井住友トラスト・アセットマネジメント株式会社	other	254.1K	¥2,205	-25.0%	¥701M ($4.5M)
2026-03-17	BUY	unknown	野村アセットマネジメント株式会社	other	522.8K	¥2,348	+17.4%	¥1.4B ($9.3M)
2026-03-17	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	189.6K	¥2,348	+17.4%	¥523M ($3.4M)
2026-03-17	BUY	unknown	野村證券株式会社	other	30.8K	¥2,348	+17.4%	¥85M ($548K)
2026-03-05	BUY	unknown	アモーヴァ・アセットマネジメント株式会社	other	1.1M	¥2,460	+12.1%	¥2.9B ($19.0M)
2026-03-05	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社	other	255.4K	¥2,460	-12.1%	¥704M ($4.5M)
2026-02-19	BUY	unknown	アモーヴァ・アセットマネジメント株式会社	other	694.9K	¥2,488	+10.8%	¥1.9B ($12.4M)
2026-02-19	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社	other	269.3K	¥2,488	-10.8%	¥742M ($4.8M)
2026-02-06	SELL	Market Buy	Ｍ＆Ｇインベストメント・マネジメント・リミテッド（M&G Investment Management Limited）、Ｍ＆Ｇインベストメンツ（シンガポール）ピーティーイー・リミテッド（M&G Investments (Singapore) Pte. Ltd.） M&G Investment Management Limited	passive	846.3K	¥2,658	-3.7%	¥4M ($25K)
2026-02-05	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	769.4K	¥2,552	+8.0%	¥2.0B ($12.7M)
2025-12-22	BUY	Market Buy	M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investments (Singapore	passive	848.0K	¥2,028	-35.9%	¥2.3B ($15.1M)
2025-12-22	SELL	Market Buy	M&Gインベストメント・マネジメント・リミテッド、M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investment Management Limited	passive	848.0K	¥2,028	-35.9%	¥2.3B ($15.1M)
2025-11-10	BUY	Market Buy	M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investments (Singapore	passive	879.2K	¥2,428	+13.6%	¥2.1B ($13.8M)
2025-11-10	SELL	Market Buy	M&Gインベストメント・マネジメント・リミテッド、M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investment Management Limited	passive	879.2K	¥2,428	-13.6%	¥11M ($70K)
2025-10-06	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	20.3K	¥2,581	-6.8%	¥19M ($124K)
2025-10-06	SELL	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	582.5K	¥2,581	-6.8%	¥433M ($2.8M)
2025-08-21	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	27.8K	¥2,077	-32.7%	¥12M ($80K)
2025-08-21	SELL	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	749.3K	¥2,077	-32.7%	¥305M ($2.0M)
2025-08-07	BUY	Market Buy	M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investments (Singapore	passive	883.3K	¥2,080	+32.5%	¥1.8B ($11.9M)
2025-08-07	BUY	Market Buy	M&Gインベストメント・マネジメント・リミテッド、M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investment Management Limited	passive	883.3K	¥2,080	+32.5%	¥170M ($1.1M)
2025-08-06	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	34.8K	¥2,087	-32.1%	¥108M ($699K)
2025-08-06	SELL	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	896.4K	¥2,087	-32.1%	¥632M ($4.1M)
2025-06-05	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	4.8K	¥1,913	-44.1%	¥139M ($898K)
2025-06-05	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	198.5K	¥1,913	-44.1%	¥97M ($623K)
2025-06-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	134.7K	¥1,913	+44.1%	¥258M ($1.7M)
2025-05-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	249.6K	¥1,912	+44.2%	¥477M ($3.1M)
2025-05-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	518.5K	¥1,912	+44.2%	¥991M ($6.4M)
2025-04-22	BUY	Market Buy	M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investments (Singapore	passive	801.9K	¥1,579	+74.6%	¥1.3B ($8.2M)
2025-04-22	BUY	Market Buy	M&Gインベストメント・マネジメント・リミテッド、M&Gインベストメンツ(シンガポール)ピーティーイー・リミテッドPte. Ltd.) M&G Investment Management Limited	passive	801.9K	¥1,579	+74.6%	¥1.3B ($8.2M)
2025-02-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	356.7K	¥2,024	+36.2%	¥710M ($4.6M)
2025-02-07	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	182.2K	¥2,024	-36.2%	¥12M ($78K)
2025-02-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	10.6K	¥2,024	-36.2%	¥3.0B ($19.4M)

Showing the 50 most recent of 200 filings.

Frequently asked questions

Who has been buying Tazmo Co., Ltd. stock?: 32 distinct investors have filed 126 disclosed large-shareholding filings in Tazmo Co., Ltd. (6266), most recently on 2026-05-13. 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 Tazmo Co., Ltd. have?: Tazmo Co., Ltd. has 126 buy-side and 80 sell-side disclosures on record, covering ¥50.8B ($327.7M) in total reported value, spanning 2021-03-22 to 2026-05-13.
Where does StockDrifts get Tazmo 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 Tazmo Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.