Who has been buying Bushiroad Inc. stock?

12 distinct investors have filed 36 disclosed large-shareholding filings in Bushiroad Inc. (7803), most recently on 2026-04-03. 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 Bushiroad Inc. have?

Bushiroad Inc. has 36 buy-side and 93 sell-side disclosures on record, covering ¥3.2B ($20.6M) in total reported value, spanning 2021-06-04 to 2026-04-03.

Where does StockDrifts get Bushiroad Inc. 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.

Bushiroad Inc. 7803

Company

株式会社ブシロードBushiroad Inc.

Investors

Buys

Total Value

¥3.2B ($20.6M)

Avg Return

-18.08%

Last Filing

2026-04-03

Bushiroad Inc. (7803) has 36 disclosed large-shareholding filings and 93 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥3.2B ($20.6M) in reported transaction value. The earliest filing StockDrifts holds for Bushiroad Inc. is dated 2021-06-04; the most recent is 2026-04-03. 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 -18.08%, 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
2026-04-03	BUY	Market Buy	木谷翔太郎	strategic	13.1M	¥260	-3.1%	¥136M ($875K)
2026-04-03	BUY	Market Buy	井上奈津子	strategic	13.7M	¥260	-3.1%	¥143M ($921K)
2026-04-03	BUY	Market Buy	株式会社中野坂上	strategic	18.4M	¥260	-3.1%	¥193M ($1.2M)
2026-04-03	BUY	Market Buy	木谷翔太郎	strategic	13.1M	¥260	-3.1%	¥136M ($875K)
2026-04-03	BUY	Market Buy	木谷加奈子	strategic	13.7M	¥260	-3.1%	¥143M ($921K)
2026-04-03	BUY	Market Buy	井上奈津子	strategic	13.7M	¥260	-3.1%	¥143M ($921K)
2026-04-03	BUY	Market Buy	株式会社中野坂上	strategic	18.4M	¥260	-3.1%	¥193M ($1.2M)
2026-04-03	BUY	Market Buy	木谷惠	strategic	992.0K	¥260	-3.1%	¥11M ($69K)
2026-04-03	BUY	Market Buy	木谷高明	activist	7.7M	¥260	-3.1%	¥82M ($530K)
2026-04-03	BUY	Market Buy	木谷加奈子	strategic	13.7M	¥260	-3.1%	¥143M ($921K)
2026-04-03	BUY	Market Buy	木谷惠	strategic	992.0K	¥260	-3.1%	¥11M ($69K)
2026-04-03	BUY	Market Buy	木谷高明	activist	7.7M	¥260	-3.1%	¥82M ($530K)
2025-08-21	SELL	unknown	木谷翔太郎 Shotaro Kitani	strategic	6.6M	¥344.5	+24.2%	¥10M ($64K)
2025-08-21	SELL	unknown	木谷加奈子 Kanako Kitani	strategic	6.8M	¥344.5	+24.2%	¥12M ($80K)
2025-08-21	SELL	unknown	井上奈津子 Natsuko Inoue	strategic	6.8M	¥344.5	+24.2%	¥12M ($80K)
2025-08-21	SELL	unknown	株式会社中野坂上 Nakano Sakaue Co., Ltd.	strategic	9.2M	¥344.5	+24.2%	¥17M ($111K)
2025-08-21	SELL	unknown	木谷翔太郎 Shotaro Kitani	strategic	6.6M	¥344.5	+24.2%	¥10M ($64K)
2025-08-21	SELL	unknown	木谷加奈子 Kanako Kitani	strategic	6.8M	¥344.5	+24.2%	¥12M ($80K)
2025-08-21	SELL	unknown	株式会社中野坂上 Nakano Sakaue Co., Ltd.	strategic	9.2M	¥344.5	+24.2%	¥17M ($111K)
2025-08-21	SELL	unknown	木谷惠 Kei Kitani	strategic	496.0K	¥344.5	+24.2%	¥2M ($16K)
2025-08-21	SELL	unknown	木谷高明 Takaaki Kidani	activist	3.9M	¥344.5	+24.2%	¥1.4B ($9.0M)
2025-08-21	SELL	unknown	木谷高明 Takaaki Kidani	activist	3.9M	¥344.5	+24.2%	¥1.4B ($9.0M)
2025-08-21	SELL	unknown	木谷惠 Kei Kitani	strategic	496.0K	¥344.5	+24.2%	¥2M ($16K)
2025-08-21	SELL	unknown	井上奈津子 Natsuko Inoue	strategic	6.8M	¥344.5	+24.2%	¥12M ($80K)
2023-12-13	BUY	unknown	木谷翔太郎 Shotaro Kitani	strategic	3.3M	¥225	+16.0%	¥738M ($4.8M)
2023-12-13	SELL	unknown	木谷惠 Kei Kitani	strategic	248.0K	¥225	-16.0%	¥752K ($5K)
2023-12-13	SELL	unknown	木谷加奈子 Kanako Kitani	strategic	3.4M	¥225	-16.0%	¥5M ($29K)
2023-12-13	SELL	unknown	木谷奈津子 Natsuko Kitani	strategic	3.4M	¥225	-16.0%	¥5M ($29K)
2023-12-13	SELL	unknown	株式会社中野坂上 Nakano Sakaue Co., Ltd.	strategic	4.6M	¥225	-16.0%	¥5M ($34K)
2023-12-13	SELL	unknown	木谷高明 Takaaki Kidani	activist	3.9M	¥225	-16.0%	¥747M ($4.8M)
2023-09-07	SELL	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	45.7K	¥264	+1.1%	¥145M ($935K)
2023-09-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.5M	¥264	-1.1%	¥387M ($2.5M)
2023-09-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	641.8K	¥260.5	-0.2%	¥26M ($168K)
2023-09-06	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	2.7M	¥260.5	+0.2%	¥691M ($4.5M)
2023-09-05	SELL	unknown	木谷翔太郎 Shotaro Kitani	strategic	6.6M	¥269	+3.0%	¥4M ($25K)
2023-09-05	SELL	unknown	木谷加奈子 Kanako Kitani	strategic	6.8M	¥269	+3.0%	¥2M ($12K)
2023-09-05	SELL	unknown	井上奈津子 Natsuko Inoue	strategic	6.8M	¥269	+3.0%	¥2M ($12K)
2023-09-05	SELL	unknown	株式会社中野坂上 Nakano Sakaue Co., Ltd.	strategic	9.2M	¥269	+3.0%	¥4M ($25K)
2023-09-05	BUY	unknown	木谷惠 Kei Kitani	strategic	496.0K	¥269	-3.0%	¥133M ($861K)
2023-09-05	SELL	unknown	木谷加奈子 Kanako Kitani	strategic	6.8M	¥269	+3.0%	¥2M ($12K)
2023-09-05	SELL	unknown	井上奈津子 Natsuko Inoue	strategic	6.8M	¥269	+3.0%	¥2M ($12K)
2023-09-05	SELL	unknown	株式会社中野坂上 Nakano Sakaue Co., Ltd.	strategic	9.2M	¥269	+3.0%	¥4M ($25K)
2023-09-05	BUY	unknown	木谷惠 Kei Kitani	strategic	496.0K	¥269	-3.0%	¥133M ($861K)
2023-09-05	SELL	unknown	木谷高明 Takaaki Kidani	activist	14.4M	¥269	+3.0%	¥6M ($37K)
2023-09-05	SELL	unknown	木谷高明 Takaaki Kidani	activist	7.9M	¥269	+3.0%	¥4M ($25K)
2023-04-06	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	738.4K	¥377.5	-30.9%	¥73M ($468K)
2023-04-06	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	4.0M	¥377.5	-30.9%	¥271M ($1.8M)
2023-02-21	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	546.4K	¥374	-30.2%	¥204M ($1.3M)
2023-02-21	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	3.3M	¥374	-30.2%	¥1.2B ($7.9M)
2023-01-20	SELL	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	587.3K	¥356.5	+26.8%	¥122M ($786K)

Showing the 50 most recent of 136 filings.

Frequently asked questions

Who has been buying Bushiroad Inc. stock?: 12 distinct investors have filed 36 disclosed large-shareholding filings in Bushiroad Inc. (7803), most recently on 2026-04-03. 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 Bushiroad Inc. have?: Bushiroad Inc. has 36 buy-side and 93 sell-side disclosures on record, covering ¥3.2B ($20.6M) in total reported value, spanning 2021-06-04 to 2026-04-03.
Where does StockDrifts get Bushiroad Inc. 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 Bushiroad Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.