Who has been buying Biprogy Inc. stock?

6 distinct investors have filed 15 disclosed large-shareholding filings in Biprogy Inc. (8056), most recently on 2026-03-05. 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 Biprogy Inc. have?

Biprogy Inc. has 15 buy-side and 9 sell-side disclosures on record, covering ¥94.0B ($606.8M) in total reported value, spanning 2021-07-06 to 2026-03-05.

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.

Biprogy Inc. 8056

Company

日本ユニシス株式会社Biprogy Inc.

Investors

Buys

Total Value

¥94.0B ($606.8M)

Avg Return

+24.52%

Last Filing

2026-03-05

Biprogy Inc. (8056) has 15 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥94.0B ($606.8M) in reported transaction value. The earliest filing StockDrifts holds for Biprogy Inc. is dated 2021-07-06; the most recent is 2026-03-05. Across these filings the average return since disclosure is +24.52%, 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
2026-08-20	SELL	Market Buy	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	5.9M	¥4,565	-4.0%	¥4.8B ($31.2M)
2026-07-06	SELL	Market Buy	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	7.0M	¥4,556	-4.3%	¥5.6B ($36.1M)
2026-07-03	BUY	unknown	ウエリントン・マネージメント・カンパニー・エルエルピー Wellington Management Company LLP	other	2.4M	¥4,477	+6.1%	¥10.9B ($70.5M)
2026-07-03	BUY	unknown	ウエリントン・マネージメント・ジャパン・ピーティーイー・リミテッド Wellington Management Japan Pte Ltd	other	2.5M	¥4,477	+6.1%	¥11.4B ($73.3M)
2026-03-05	BUY	unknown	野村證券株式会社	other	125.3K	¥4,499	-	¥564M ($3.6M)
2026-03-05	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	106.0K	¥4,499	-5.6%	¥136M ($877K)
2026-03-05	SELL	unknown	野村アセットマネジメント株式会社	other	4.5M	¥4,499	-5.6%	¥6.7B ($43.0M)
2025-11-21	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	145.2K	¥6,109	-	¥887M ($5.7M)
2025-11-21	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	6.0M	¥6,109	-22.3%	¥5.3B ($34.1M)
2025-09-05	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	97.2K	¥6,241	+23.9%	¥69.1B ($445.8M)
2025-09-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	44.7K	¥6,241	-23.9%	¥23.3B ($150.4M)
2025-09-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	5.1M	¥6,241	-23.9%	¥31.7B ($204.4M)
2025-06-19	BUY	Market Buy	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	8.3M	¥6,064	-21.7%	¥6.7B ($42.9M)
2025-05-22	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	5.6M	¥5,599	-15.2%	¥4.1B ($26.5M)
2025-05-22	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	292.9K	¥5,599	+15.2%	¥26.5B ($171.3M)
2025-05-22	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	216.0K	¥5,599	-15.2%	¥39.5B ($254.5M)
2024-02-06	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	3.5M	¥4,527	-4.9%	¥2.2B ($14.4M)
2024-02-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.5M	¥4,527	-4.9%	¥2.9B ($18.6M)
2023-12-21	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	4.0M	¥4,224	+12.4%	¥4.3B ($27.8M)
2023-12-21	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	2.1M	¥4,224	-12.4%	¥4.8B ($31.1M)
2022-12-06	BUY	Market Buy	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	7.9M	¥3,205	+48.2%	¥3.9B ($25.4M)
2022-08-19	BUY	Market Buy	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	6.7M	¥3,145	+51.0%	¥3.7B ($23.6M)
2022-06-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	151.5K	¥2,885	+64.6%	¥437M ($2.8M)
2022-06-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	59.9K	¥2,885	+64.6%	¥173M ($1.1M)
2022-06-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	5.3M	¥2,885	+64.6%	¥15.4B ($99.4M)
2022-01-20	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	3.0M	¥3,105	-53.0%	¥1.3B ($8.3M)
2022-01-20	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	3.3M	¥3,105	+53.0%	¥3.4B ($22.0M)
2021-08-19	SELL	Market Buy	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	5.5M	¥2,851	-66.6%	¥3.3B ($21.0M)
2021-07-06	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	3.4M	¥3,380	+40.5%	¥11.5B ($73.9M)
2021-07-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	2.2M	¥3,380	+40.5%	¥7.3B ($47.0M)

Frequently asked questions

Who has been buying Biprogy Inc. stock?: 6 distinct investors have filed 15 disclosed large-shareholding filings in Biprogy Inc. (8056), most recently on 2026-03-05. 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 Biprogy Inc. have?: Biprogy Inc. has 15 buy-side and 9 sell-side disclosures on record, covering ¥94.0B ($606.8M) in total reported value, spanning 2021-07-06 to 2026-03-05.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.