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

7 distinct investors have filed 13 disclosed large-shareholding filings in Asahi Co., Ltd. (3333), most recently on 2026-05-11. 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 Asahi Co., Ltd. have?

Asahi Co., Ltd. has 13 buy-side and 15 sell-side disclosures on record, covering ¥2.7B ($17.2M) in total reported value, spanning 2021-05-21 to 2026-05-11.

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.

Asahi Co., Ltd. 3333

Company

株式会社あさひAsahi Co., Ltd.

Investors

Buys

Total Value

¥2.7B ($17.2M)

Avg Return

-4.79%

Last Filing

2026-05-11

Asahi Co., Ltd. (3333) has 13 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥2.7B ($17.2M) in reported transaction value. The earliest filing StockDrifts holds for Asahi Co., Ltd. is dated 2021-05-21; the most recent is 2026-05-11. Across these filings the average return since disclosure is -4.79%, 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
2026-05-11	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	993.8K	¥1,258	-2.4%	¥657M ($4.2M)
2026-02-05	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	1.5M	¥1,292	+0.3%	¥342M ($2.2M)
2024-10-04	SELL	negotiated	下田美智子 Michiko Shimoda	strategic	1.6M	¥1,734	+25.7%	¥464M ($3.0M)
2024-10-04	SELL	negotiated	下田美智子 Michiko Shimoda	strategic	1.6M	¥1,734	+25.7%	¥460M ($3.0M)
2024-10-04	BUY	negotiated	下田佳史 Yoshifumi Shimoda	activist	3.3M	¥1,734	-25.7%	¥32M ($205K)
2024-10-04	BUY	negotiated	下田佳史 Yoshifumi Shimoda	activist	3.3M	¥1,734	-25.7%	¥32M ($205K)
2024-10-04	BUY	negotiated	株式会社シー・ビー・エイ CBA Co., Ltd.	strategic	1.3M	¥1,734	-	-
2024-10-04	BUY	negotiated	株式会社シー・ビー・エイ CBA Co., Ltd.	strategic	1.3M	¥1,734	-	-
2023-11-07	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	1.8M	¥1,295	-0.5%	¥367M ($2.4M)
2023-08-21	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	1.5M	¥1,259	+2.3%	¥1.9B ($12.2M)
2023-03-23	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	238.7K	¥1,313	+1.9%	¥923M ($6.0M)
2023-03-23	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	1.0M	¥1,313	-1.9%	¥17M ($111K)
2023-01-11	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	943.1K	¥1,347	-4.4%	¥343M ($2.2M)
2023-01-11	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	1.0M	¥1,347	+4.4%	¥396M ($2.6M)
2022-12-20	SELL	Market Buy	東京海上アセットマネジメント株式会社 Tokio Marine Asset Management Co.,Ltd.	passive	1.2M	¥1,347	+4.4%	¥414M ($2.7M)
2022-11-18	SELL	Market Buy	東京海上アセットマネジメント株式会社 Tokio Marine Asset Management Co.,Ltd.	passive	1.5M	¥1,314	+2.0%	¥369M ($2.4M)
2022-09-06	SELL	Market Buy	東京海上アセットマネジメント株式会社 Tokio Marine Asset Management Co.,Ltd.	passive	1.8M	¥1,305	+1.3%	¥377M ($2.4M)
2022-04-07	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	688.3K	¥1,351	+4.7%	¥277M ($1.8M)
2022-04-07	SELL	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	1.3M	¥1,351	+4.7%	¥99M ($640K)
2021-11-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	892.2K	¥1,361	-5.4%	¥486M ($3.1M)
2021-11-22	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	1.4M	¥1,361	-5.4%	¥164M ($1.1M)
2021-09-03	BUY	Market Buy	東京海上アセットマネジメント株式会社 Tokio Marine Asset Management Co.,Ltd.	passive	2.1M	¥1,369	-5.9%	¥395M ($2.5M)
2021-07-26	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	1.3M	¥1,354	-4.9%	¥380M ($2.5M)
2021-07-26	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	534.7K	¥1,354	-4.9%	¥4M ($23K)
2021-07-05	SELL	negotiated	下田佳史 Yoshifumi Shimoda	activist	3.2M	¥1,423	+9.5%	¥568M ($3.7M)
2021-07-05	SELL	negotiated	下田美智子 Michiko Shimoda	strategic	1.9M	¥1,423	+9.5%	¥149M ($964K)
2021-07-05	BUY	negotiated	株式会社シー・ビー・エイ CBA Co., Ltd.	strategic	1.3M	¥1,423	-9.5%	¥500M ($3.2M)
2021-05-21	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	982.5K	¥1,437	-10.4%	¥490M ($3.2M)
2021-05-21	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	0	¥1,437	+10.4%	¥41M ($268K)
2021-05-21	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	534.0K	¥1,437	+10.4%	¥207M ($1.3M)

Frequently asked questions

Who has been buying Asahi Co., Ltd. stock?: 7 distinct investors have filed 13 disclosed large-shareholding filings in Asahi Co., Ltd. (3333), most recently on 2026-05-11. 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 Asahi Co., Ltd. have?: Asahi Co., Ltd. has 13 buy-side and 15 sell-side disclosures on record, covering ¥2.7B ($17.2M) in total reported value, spanning 2021-05-21 to 2026-05-11.
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.