Who has been buying Tokyo Tatemono Co., Ltd. stock?

33 distinct investors have filed 193 disclosed large-shareholding filings in Tokyo Tatemono Co., Ltd. (8804), most recently on 2026-04-22. 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 Tokyo Tatemono Co., Ltd. have?

Tokyo Tatemono Co., Ltd. has 193 buy-side and 162 sell-side disclosures on record, covering ¥531.9B ($3.4B) in total reported value, spanning 2021-03-19 to 2026-04-22.

Where does StockDrifts get Tokyo Tatemono 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.

Tokyo Tatemono Co., Ltd. 8804

Company

東京建物株式会社Tokyo Tatemono Co., Ltd.

Investors

Buys

193

Total Value

¥531.9B ($3.4B)

Avg Return

+83.05%

Last Filing

2026-04-22

Tokyo Tatemono Co., Ltd. (8804) has 193 disclosed large-shareholding filings and 162 disclosed disposals on record, filed by 33 distinct investors. Together those filings cover ¥531.9B ($3.4B) in reported transaction value. The earliest filing StockDrifts holds for Tokyo Tatemono Co., Ltd. is dated 2021-03-19; the most recent is 2026-04-22. 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 +83.05%, 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
2026-04-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社	passive	16.5M	¥3,608	-12.7%	¥600M ($3.9M)
2026-04-22	SELL	unknown	SMBC日興証券株式会社	other	168.3K	¥3,608	+12.7%	¥11.6B ($74.6M)
2026-04-21	BUY	Market Buy	アモーヴァ・アセットマネジメント株式会社	other	5.5M	¥3,714	-11.6%	¥386M ($2.5M)
2026-04-21	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	5.1M	¥3,714	+11.6%	¥772M ($5.0M)
2026-02-20	BUY	unknown	みずほ信託銀行株式会社	strategic	1.0M	¥4,145	+10.3%	¥3.8B ($24.2M)
2026-02-20	SELL	unknown	みずほ証券株式会社	other	547.7K	¥4,145	+10.3%	¥2.0B ($13.1M)
2026-02-20	BUY	unknown	株式会社みずほ銀行	strategic	2.2M	¥4,145	+10.3%	¥8.1B ($52.0M)
2026-02-20	SELL	unknown	アセットマネジメントOne株式会社	other	8.4M	¥4,145	+10.3%	¥31.2B ($201.3M)
2026-02-20	SELL	Market Buy	三井住友DSアセットマネジメント株式会社	passive	16.3M	¥4,145	+10.3%	¥60.7B ($391.9M)
2026-02-20	BUY	Market Buy	SMBC日興証券株式会社	other	3.4M	¥4,145	-10.3%	¥12.5B ($80.6M)
2026-02-19	SELL	unknown	アモーヴァ・アセットマネジメント株式会社	other	5.4M	¥4,150	+10.4%	¥20.1B ($129.4M)
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	5.3M	¥4,150	+10.4%	¥19.6B ($126.2M)
2026-01-20	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	312.7K	¥3,701	-0.5%	¥1.2B ($7.5M)
2026-01-20	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	passive	2.2M	¥3,701	+0.5%	¥8.0B ($51.8M)
2026-01-20	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	2.9M	¥3,701	-0.5%	¥10.9B ($70.4M)
2026-01-20	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	1.1M	¥3,701	+0.5%	¥4.1B ($26.3M)
2026-01-20	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	463.0K	¥3,701	+0.5%	¥1.7B ($11.1M)
2026-01-20	SELL	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	266.0K	¥3,701	-0.5%	¥989M ($6.4M)
2026-01-20	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	1.5M	¥3,701	+0.5%	¥5.7B ($36.7M)
2026-01-20	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	425.0K	¥3,701	-0.5%	¥1.6B ($10.2M)
2026-01-20	SELL	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	385.5K	¥3,701	-0.5%	¥1.4B ($9.2M)
2026-01-20	BUY	Market Buy	ブラックロック・ジャパン株式会社	passive	3.7M	¥3,701	+0.5%	¥13.7B ($88.2M)
2026-01-09	BUY	Market Buy	三井住友DSアセットマネジメント株式会社	passive	17.1M	¥3,655	+1.7%	¥63.4B ($409.3M)
2026-01-09	BUY	Market Buy	SMBC日興証券株式会社	other	1.2M	¥3,655	-1.7%	¥4.5B ($28.8M)
2026-01-09	BUY	Market Buy	みずほ信託銀行株式会社	strategic	1.0M	¥3,655	-1.7%	¥3.8B ($24.5M)
2026-01-09	BUY	Market Buy	みずほ証券株式会社	other	1.4M	¥3,655	-1.7%	¥5.3B ($34.3M)
2026-01-09	BUY	Market Buy	株式会社みずほ銀行	strategic	2.2M	¥3,655	-1.7%	¥8.1B ($52.0M)
2026-01-09	SELL	Market Buy	アセットマネジメントOne株式会社	other	8.6M	¥3,655	-1.7%	¥31.8B ($205.2M)
2025-12-03	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	305.8K	¥3,374	+10.2%	¥1.1B ($7.3M)
2025-12-03	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	passive	2.1M	¥3,374	-10.2%	¥7.8B ($50.0M)
2025-12-03	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	2.9M	¥3,374	+10.2%	¥10.9B ($70.5M)
2025-12-03	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	1.1M	¥3,374	-10.2%	¥4.0B ($25.6M)
2025-12-03	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	446.0K	¥3,374	-10.2%	¥1.7B ($10.7M)
2025-12-03	SELL	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	288.2K	¥3,374	-10.2%	¥1.1B ($6.9M)
2025-12-03	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	1.5M	¥3,374	+10.2%	¥5.6B ($36.3M)
2025-12-03	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	422.3K	¥3,374	-10.2%	¥1.6B ($10.1M)
2025-12-03	SELL	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	735.2K	¥3,374	-10.2%	¥2.7B ($17.6M)
2025-12-03	SELL	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	81.0K	¥3,374	-10.2%	¥301M ($1.9M)
2025-12-03	SELL	Market Buy	ブラックロック・ジャパン株式会社	passive	3.6M	¥3,374	-10.2%	¥13.2B ($85.2M)
2025-10-22	BUY	unknown	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	16.0M	¥2,931	+26.9%	¥552M ($3.6M)
2025-10-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	138.9K	¥2,931	-26.9%	¥5.8B ($37.6M)
2025-09-19	SELL	Market Buy	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	5.8M	¥2,889	-28.7%	¥786M ($5.1M)
2025-09-19	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	5.7M	¥2,889	+28.7%	¥3.2B ($20.7M)
2025-09-05	BUY	unknown	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	15.9M	¥2,822.5	+31.7%	¥531M ($3.4M)
2025-09-05	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	2.1M	¥2,822.5	-31.7%	¥6.1B ($39.6M)
2025-08-22	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.0M	¥2,858	+30.1%	¥2.9B ($19.0M)
2025-08-22	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	149.6K	¥2,858	-30.1%	¥2.8B ($18.1M)
2025-08-22	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	2.2M	¥2,858	+30.1%	¥6.2B ($40.0M)
2025-08-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	9.3M	¥2,858	+30.1%	¥1.5B ($9.6M)
2025-08-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	4.3M	¥2,699	+37.8%	¥6.8B ($43.7M)

Showing the 50 most recent of 200 filings.

Frequently asked questions

Who has been buying Tokyo Tatemono Co., Ltd. stock?: 33 distinct investors have filed 193 disclosed large-shareholding filings in Tokyo Tatemono Co., Ltd. (8804), most recently on 2026-04-22. 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 Tokyo Tatemono Co., Ltd. have?: Tokyo Tatemono Co., Ltd. has 193 buy-side and 162 sell-side disclosures on record, covering ¥531.9B ($3.4B) in total reported value, spanning 2021-03-19 to 2026-04-22.
Where does StockDrifts get Tokyo Tatemono 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 Tokyo Tatemono Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.