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

4 distinct investors have filed 16 disclosed large-shareholding filings in PhoenixBio Co., Ltd. (6190), most recently on 2025-09-01. 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 PhoenixBio Co., Ltd. have?

PhoenixBio Co., Ltd. has 16 buy-side and 33 sell-side disclosures on record, covering ¥1.3B ($8.6M) in total reported value, spanning 2021-04-02 to 2025-09-01.

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.

PhoenixBio Co., Ltd. 6190

Company

株式会社フェニックスバイオPhoenixBio Co., Ltd.

Investors

Buys

Total Value

¥1.3B ($8.6M)

Avg Return

-18.69%

Last Filing

2025-09-01

PhoenixBio Co., Ltd. (6190) has 16 disclosed large-shareholding filings and 33 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥1.3B ($8.6M) in reported transaction value. The earliest filing StockDrifts holds for PhoenixBio Co., Ltd. is dated 2021-04-02; the most recent is 2025-09-01. Across these filings the average return since disclosure is -18.69%, 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
2025-09-01	BUY	Market Buy	三和澱粉工業株式会社 SANWA STARCH CO.,LTD.	strategic	1.3M	¥399	-23.3%	¥279M ($1.8M)
2025-09-01	BUY	unknown	三和澱粉工業株式会社 SANWA STARCH CO.,LTD.	strategic	1.3M	¥399	-23.3%	¥279M ($1.8M)
2025-09-01	SELL	unknown	株式会社特殊免疫研究所 Special Immunology Research Institute Co., Ltd.	strategic	129.0K	¥399	+23.3%	¥325K ($2K)
2025-09-01	SELL	Market Buy	株式会社特殊免疫研究所 Special Immunology Research Institute Co., Ltd.	strategic	129.0K	¥399	+23.3%	¥325K ($2K)
2025-08-29	BUY	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	7.0K	¥401	-	¥5M ($30K)
2025-08-29	SELL	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	7.0K	¥401	+23.7%	¥5M ($30K)
2025-02-21	BUY	Market Buy	三和澱粉工業株式会社 SANWA STARCH CO.,LTD.	strategic	574.2K	¥611	-49.9%	¥182M ($1.2M)
2025-02-21	SELL	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	708.0K	¥611	+49.9%	¥233M ($1.5M)
2025-02-21	SELL	Market Buy	株式会社特殊免疫研究所 Special Immunology Research Institute Co., Ltd.	strategic	129.0K	¥611	+49.9%	¥496K ($3K)
2024-01-11	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	629.1K	¥487	+37.2%	¥219M ($1.4M)
2024-01-11	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	0	¥487	+37.2%	¥275M ($1.8M)
2024-01-05	SELL	unknown	株式会社特殊免疫研究所 Special Immunology Research Institute Co., Ltd.	strategic	129.0K	¥489	+37.4%	¥24M ($152K)
2024-01-05	BUY	unknown	三和澱粉工業株式会社 SANWA STARCH CO.,LTD.	strategic	914.1K	¥489	-37.4%	¥381M ($2.5M)
2024-01-05	BUY	unknown	株式会社特殊免疫研究所 Special Immunology Research Institute Co., Ltd.	strategic	129.0K	¥489	-	-
2024-01-05	BUY	unknown	三和澱粉工業株式会社 SANWA STARCH CO.,LTD.	strategic	274.2K	¥489	-37.4%	¥130M ($841K)
2023-10-10	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.3M	¥547	-44.1%	¥84M ($544K)
2023-10-06	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.1M	¥538	+43.1%	¥92M ($592K)
2023-10-03	SELL	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥545	+43.9%	¥16M ($104K)
2023-10-03	BUY	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥545	-	¥16M ($104K)
2023-09-25	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.3M	¥565	+45.8%	¥21M ($138K)
2023-07-10	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.4M	¥587	-47.9%	¥89M ($573K)
2023-07-07	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.2M	¥582	+47.4%	¥94M ($605K)
2023-07-04	SELL	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥580	+47.2%	¥2M ($14K)
2023-04-10	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.4M	¥591	-48.2%	¥89M ($575K)
2023-04-04	BUY	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥601	-	-
2023-04-03	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.2M	¥607	+49.6%	¥92M ($591K)
2023-03-08	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.4M	¥621	-	¥94M ($604K)
2023-03-08	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.4M	¥621	-50.7%	¥94M ($604K)
2023-03-03	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.2M	¥633	+51.7%	¥95M ($616K)
2023-02-27	SELL	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥640	+52.2%	¥36M ($230K)
2023-02-24	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.4M	¥629	+51.4%	¥8M ($55K)
2023-02-16	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.4M	¥693	+55.8%	¥49M ($313K)
2023-02-10	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.5M	¥693	+55.8%	¥11M ($72K)
2023-02-03	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.5M	¥706	+56.7%	¥25M ($162K)
2022-12-08	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.6M	¥719	-57.4%	¥101M ($649K)
2022-12-07	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.4M	¥716	+57.3%	¥102M ($660K)
2022-12-02	SELL	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥706	+56.7%	¥25M ($162K)
2022-11-30	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.6M	¥710	+56.9%	¥4M ($25K)
2022-11-24	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.6M	¥693	+55.8%	¥24M ($156K)
2022-10-19	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.6M	¥741	+58.7%	¥31M ($199K)
2022-08-08	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.7M	¥709	-56.8%	¥98M ($633K)
2022-08-05	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.5M	¥684	+55.3%	¥98M ($631K)
2022-08-01	SELL	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥671	+54.4%	¥4M ($26K)
2022-04-08	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.7M	¥549	-44.3%	¥76M ($488K)
2022-04-01	BUY	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥529	-	-
2022-03-31	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.5M	¥524	+41.6%	¥72M ($466K)
2022-03-08	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.7M	¥454	-32.6%	¥63M ($404K)
2022-03-04	SELL	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.5M	¥511	+40.1%	¥70M ($455K)
2022-02-28	BUY	unknown	三和商事株式会社 Sanwa shouji Co.,Ltd.	strategic	1.0M	¥573	-	-
2021-11-09	BUY	Market Buy	株式会社ウィズ・パートナーズ Whiz Partners Inc.	passive	1.7M	¥665	-54.0%	¥92M ($592K)

Showing the 50 most recent of 58 filings.

Frequently asked questions

Who has been buying PhoenixBio Co., Ltd. stock?: 4 distinct investors have filed 16 disclosed large-shareholding filings in PhoenixBio Co., Ltd. (6190), most recently on 2025-09-01. 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 PhoenixBio Co., Ltd. have?: PhoenixBio Co., Ltd. has 16 buy-side and 33 sell-side disclosures on record, covering ¥1.3B ($8.6M) in total reported value, spanning 2021-04-02 to 2025-09-01.
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.