Who has been buying S&B Foods Inc. stock?

6 distinct investors have filed 5 disclosed large-shareholding filings in S&B Foods Inc. (2805), most recently on 2025-08-22. 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 S&B Foods Inc. have?

S&B Foods Inc. has 5 buy-side and 2 sell-side disclosures on record, covering ¥3.1B ($19.9M) in total reported value, spanning 2021-12-14 to 2025-08-22.

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.

S&B Foods Inc. 2805

Company

ヱスビー食品株式会社S&B Foods Inc.

Investors

Buys

Total Value

¥3.1B ($19.9M)

Avg Return

+114.63%

Last Filing

2025-08-22

S&B Foods Inc. (2805) has 5 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥3.1B ($19.9M) in reported transaction value. The earliest filing StockDrifts holds for S&B Foods Inc. is dated 2021-12-14; the most recent is 2025-08-22. Across these filings the average return since disclosure is +114.63%, 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
2025-08-22	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	433.7K	¥3,165	+138.2%	¥1.4B ($8.9M)
2025-08-22	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	968.5K	¥3,165	+138.2%	¥3.1B ($19.8M)
2025-02-26	BUY	unknown	山崎由真子 Yumako Yamazaki	activist	400.0K	¥2,600	-	-
2025-02-26	BUY	unknown	山崎雅也 Masaya Yamazaki	activist	400.0K	¥2,600	-	-
2025-02-26	BUY	unknown	山崎明裕 Akihiro Yamazaki	activist	400.0K	¥2,600	-	-
2022-12-26	BUY	Market Buy	山崎雅也 Masaya Yamazaki	activist	400.0K	¥1,737.5	+334.0%	¥17M ($107K)
2022-12-26	BUY	Market Buy	山崎明裕 Akihiro Yamazaki	activist	400.0K	¥1,737.5	+334.0%	¥17M ($107K)
2022-12-26	BUY	Market Buy	山崎由真子 Yumako Yamazaki	activist	400.0K	¥1,737.5	+334.0%	¥14M ($92K)
2022-02-24	SELL	unknown	峯栄興業株式会社 HOEI KOGYO CO.,LTD.	strategic	603.3K	¥1,865	-304.3%	¥560M ($3.6M)
2021-12-14	BUY	unknown	峯栄興業株式会社 HOEI KOGYO.,CO.LTD.	strategic	903.3K	¥1,875	-	¥591M ($3.8M)
2021-12-14	SELL	unknown	峯栄興業株式会社 HOEI KOGYO.,CO.LTD.	strategic	903.3K	¥1,875	-302.1%	¥591M ($3.8M)

Frequently asked questions

Who has been buying S&B Foods Inc. stock?: 6 distinct investors have filed 5 disclosed large-shareholding filings in S&B Foods Inc. (2805), most recently on 2025-08-22. 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 S&B Foods Inc. have?: S&B Foods Inc. has 5 buy-side and 2 sell-side disclosures on record, covering ¥3.1B ($19.9M) in total reported value, spanning 2021-12-14 to 2025-08-22.
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.