Who has been buying Marudai Food Co., Ltd. stock?

5 distinct investors have filed 16 disclosed large-shareholding filings in Marudai Food Co., Ltd. (2288), most recently on 2026-03-19. 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 Marudai Food Co., Ltd. have?

Marudai Food Co., Ltd. has 16 buy-side and 17 sell-side disclosures on record, covering ¥6.0B ($38.8M) in total reported value, spanning 2021-08-19 to 2026-03-19.

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.

Marudai Food Co., Ltd. 2288

Company

丸大食品株式会社Marudai Food Co., Ltd.

Investors

Buys

Total Value

¥6.0B ($38.8M)

Avg Return

+29.54%

Last Filing

2026-03-19

Marudai Food Co., Ltd. (2288) has 16 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥6.0B ($38.8M) in reported transaction value. The earliest filing StockDrifts holds for Marudai Food Co., Ltd. is dated 2021-08-19; the most recent is 2026-03-19. Across these filings the average return since disclosure is +29.54%, 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
2026-03-19	SELL	negotiated	三井住友信託銀行株式会社	strategic	576.1K	¥2,278	-0.3%	¥441M ($2.8M)
2026-03-19	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社	other	384.7K	¥2,278	-0.3%	¥103M ($662K)
2026-03-19	SELL	negotiated	アモーヴァ・アセットマネジメント株式会社	other	337.5K	¥2,278	-0.3%	¥175M ($1.1M)
2025-10-22	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	789.1K	¥1,894	-	-
2025-10-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	105.1K	¥1,894	-20.7%	¥924M ($6.0M)
2025-10-06	SELL	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	428.8K	¥1,916	-19.3%	¥5M ($33K)
2025-10-06	BUY	Market Buy	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	414.3K	¥1,916	+19.3%	¥96M ($623K)
2025-10-06	BUY	Market Buy	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	768.7K	¥1,916	-	-
2025-09-19	BUY	Market Buy	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	768.7K	¥2,082	-	-
2025-09-19	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	431.2K	¥2,082	-	-
2025-09-19	BUY	Market Buy	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	363.4K	¥2,082	+9.8%	¥50M ($320K)
2025-09-04	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	768.7K	¥2,035	-	-
2025-09-04	SELL	negotiated	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	432.6K	¥2,035	-12.3%	¥43M ($278K)
2025-09-04	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	340.2K	¥2,035	+12.3%	¥32M ($209K)
2025-08-22	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	593.5K	¥2,006	+14.0%	¥1.2B ($7.7M)
2025-08-22	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	789.1K	¥2,006	+14.0%	¥1.6B ($10.2M)
2024-12-19	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	768.7K	¥1,671	-36.8%	¥159M ($1.0M)
2024-12-19	SELL	negotiated	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	454.5K	¥1,671	-36.8%	¥301M ($1.9M)
2024-12-19	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	322.7K	¥1,671	+36.8%	¥75M ($486K)
2024-12-06	SELL	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	789.1K	¥1,725	-32.5%	¥169M ($1.1M)
2024-12-06	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	328.7K	¥1,725	-32.5%	¥384M ($2.5M)
2024-09-06	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	552.1K	¥1,723	+32.7%	¥951M ($6.1M)
2024-09-06	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	887.7K	¥1,723	+32.7%	¥1.5B ($9.9M)
2023-10-20	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	887.7K	¥1,617	-	-
2023-10-20	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	19.4K	¥1,617	-41.4%	¥823M ($5.3M)
2023-08-22	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	528.7K	¥1,656	+38.0%	¥876M ($5.6M)
2023-08-22	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	887.7K	¥1,656	+38.0%	¥1.5B ($9.5M)
2022-10-21	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	230.7K	¥1,409	-62.2%	¥377M ($2.4M)
2022-10-21	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	887.7K	¥1,409	-	-
2022-09-26	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	499.4K	¥1,485	+53.9%	¥742M ($4.8M)
2022-09-26	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	887.7K	¥1,485	+53.9%	¥1.3B ($8.5M)
2022-08-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	864.8K	¥1,576	-	-
2022-08-19	BUY	negotiated	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	633.2K	¥1,576	+45.0%	¥29M ($189K)
2022-08-19	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	279.6K	¥1,576	-45.0%	¥8M ($54K)
2021-12-06	SELL	negotiated	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	615.4K	¥1,458	-56.8%	¥124M ($798K)
2021-12-06	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	282.9K	¥1,458	-	-
2021-12-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	864.8K	¥1,458	-	-
2021-10-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	29.8K	¥1,710	-33.7%	¥1.3B ($8.1M)
2021-10-22	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	887.7K	¥1,710	-	-
2021-09-24	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	767.0K	¥1,811	+26.2%	¥542M ($3.5M)
2021-09-24	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	887.7K	¥1,811	-	-
2021-09-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	465.6K	¥1,813	+26.1%	¥844M ($5.4M)
2021-09-07	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	887.7K	¥1,813	+26.1%	¥1.6B ($10.4M)
2021-08-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	864.8K	¥1,730	-	-
2021-08-19	SELL	negotiated	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	699.0K	¥1,730	-32.1%	¥64M ($414K)
2021-08-19	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	283.7K	¥1,730	-32.1%	¥5M ($30K)

Frequently asked questions

Who has been buying Marudai Food Co., Ltd. stock?: 5 distinct investors have filed 16 disclosed large-shareholding filings in Marudai Food Co., Ltd. (2288), most recently on 2026-03-19. 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 Marudai Food Co., Ltd. have?: Marudai Food Co., Ltd. has 16 buy-side and 17 sell-side disclosures on record, covering ¥6.0B ($38.8M) in total reported value, spanning 2021-08-19 to 2026-03-19.
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.