Who has been buying Rorze Corporation stock?

7 distinct investors have filed 12 disclosed large-shareholding filings in Rorze Corporation (6323), most recently on 2025-05-08. 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 Rorze Corporation have?

Rorze Corporation has 12 buy-side and 7 sell-side disclosures on record, covering ¥36.2B ($233.4M) in total reported value, spanning 2022-02-04 to 2025-05-08.

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.

Rorze Corporation 6323

Company

ローツェ株式会社Rorze Corporation

Investors

Buys

Total Value

¥36.2B ($233.4M)

Avg Return

+129.51%

Last Filing

2025-05-08

Rorze Corporation (6323) has 12 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥36.2B ($233.4M) in reported transaction value. The earliest filing StockDrifts holds for Rorze Corporation is dated 2022-02-04; the most recent is 2025-05-08. Across these filings the average return since disclosure is +129.51%, 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
2025-05-08	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	61.9M	¥1,548	-	-
2025-05-08	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	61.9M	¥1,548	-	-
2025-05-08	BUY	unknown	バルンリバー合同会社 Barun River LLC	activist	8.4M	¥1,548	-	-
2025-05-08	BUY	unknown	バルンリバー合同会社 Barun River LLC	activist	8.4M	¥1,548	-	-
2024-12-05	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	3.9M	¥1,604	-122.3%	¥3.4B ($21.9M)
2024-12-05	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	3.2M	¥1,604	-122.3%	¥141M ($913K)
2024-11-07	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	6.0M	¥2,237	+59.4%	¥13.5B ($87.2M)
2024-11-07	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	3.2M	¥2,237	+59.4%	¥7.2B ($46.8M)
2024-10-30	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	70.3M	¥2,337	-	-
2024-10-30	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	61.9M	¥2,337	-	-
2024-10-30	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	61.9M	¥2,337	-	-
2024-10-30	BUY	unknown	バルンリバー合同会社 Barun River LLC	activist	8.4M	¥2,337	-	-
2024-10-30	BUY	unknown	バルンリバー合同会社 Barun River LLC	activist	8.4M	¥2,337	-	-
2024-10-29	BUY	block_purchase	崎谷文雄 Fumio Sakiya	activist	70.3M	¥2,171	+64.2%	¥9.1B ($58.8M)
2024-10-29	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	61.9M	¥2,171	-	-
2024-10-29	BUY	unknown	バルンリバー合同会社 Barun River LLC	activist	8.4M	¥2,171	+64.2%	¥9.2B ($59.1M)
2024-10-25	BUY	Market Buy	崎谷文雄 Fumio Sakiya	activist	66.1M	¥1,985	+79.6%	¥4.3B ($27.8M)
2024-10-25	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	61.9M	¥1,985	-	-
2024-10-25	BUY	unknown	バルンリバー合同会社 Barun River LLC	activist	4.1M	¥1,985	+79.6%	¥4.3B ($27.8M)
2024-10-23	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	61.9M	¥2,059	-	-
2024-10-23	BUY	Market Buy	崎谷文雄 Fumio Sakiya	activist	63.9M	¥2,059	+73.1%	¥4.1B ($26.5M)
2024-10-23	BUY	unknown	バルンリバー合同会社 Barun River LLC	activist	2.0M	¥2,059	-	¥4.1B ($26.3M)
2023-12-21	BUY	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	731.0K	¥1,466	+143.2%	¥1.1B ($6.8M)
2023-12-21	BUY	Market Buy	シュローダー・インベストメント・マネージメント・ノースアメリカ・リミテッド Schroder Investment Management North America Limited	passive	148.3K	¥1,466	+143.2%	¥67M ($434K)
2023-12-21	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	8.5K	¥1,466	-143.2%	¥23M ($150K)
2023-02-06	BUY	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	950.3K	¥1,025	+247.8%	¥974M ($6.3M)
2023-02-06	BUY	Market Buy	シュローダー・インベストメント・マネージメント・ノースアメリカ・リミテッド Schroder Investment Management North America Limited	passive	101.9K	¥1,025	+247.8%	¥104M ($674K)
2023-02-06	BUY	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	24.0K	¥1,025	+247.8%	¥25M ($159K)
2022-11-25	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	6.2M	¥870	-	¥71M ($455K)
2022-11-25	BUY	unknown	崎谷文雄 Fumio Sakiya	activist	6.2M	¥870	-	¥71M ($455K)
2022-11-25	SELL	unknown	崎谷文雄 Fumio Sakiya	activist	6.2M	¥870	-309.8%	¥71M ($455K)
2022-02-04	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	607.3K	¥1,057	-237.3%	¥89M ($577K)
2022-02-04	SELL	Market Buy	シュローダー・インベストメント・マネージメント・ノースアメリカ・リミテッド Schroder Investment Management North America Limited	passive	97.2K	¥1,057	-237.3%	¥86M ($553K)
2022-02-04	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	27.5K	¥1,057	-237.3%	¥15M ($96K)

Frequently asked questions

Who has been buying Rorze Corporation stock?: 7 distinct investors have filed 12 disclosed large-shareholding filings in Rorze Corporation (6323), most recently on 2025-05-08. 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 Rorze Corporation have?: Rorze Corporation has 12 buy-side and 7 sell-side disclosures on record, covering ¥36.2B ($233.4M) in total reported value, spanning 2022-02-04 to 2025-05-08.
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.