Who has been buying Miyoshi Oil & Fat Co., Ltd. stock?

8 distinct investors have filed 14 disclosed large-shareholding filings in Miyoshi Oil & Fat Co., Ltd. (4404), 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 Miyoshi Oil & Fat Co., Ltd. have?

Miyoshi Oil & Fat Co., Ltd. has 14 buy-side and 6 sell-side disclosures on record, covering ¥404M ($2.6M) in total reported value, spanning 2022-06-07 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.

Miyoshi Oil & Fat Co., Ltd. 4404

Company

ミヨシ油脂株式会社Miyoshi Oil & Fat Co., Ltd.

Investors

Buys

Total Value

¥404M ($2.6M)

Avg Return

+12.89%

Last Filing

2026-05-11

Miyoshi Oil & Fat Co., Ltd. (4404) has 14 disclosed large-shareholding filings and 6 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥404M ($2.6M) in reported transaction value. The earliest filing StockDrifts holds for Miyoshi Oil & Fat Co., Ltd. is dated 2022-06-07; the most recent is 2026-05-11. Across these filings the average return since disclosure is +12.89%, 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
2026-08-31	BUY	Market Buy	株式会社UESHIMA	activist	7.8K	¥2,186	+0.8%	¥18M ($116K)
2026-08-31	BUY	Market Buy	株式会社ドリームキャリアホールディングス	activist	5.2K	¥2,186	+0.8%	¥5M ($29K)
2026-08-31	BUY	Market Buy	株式会社ナチュラリ	activist	318.1K	¥2,186	+0.8%	¥56M ($363K)
2026-08-31	BUY	Market Buy	植島幹九郎	activist	498.8K	¥2,186	+0.8%	¥25M ($160K)
2026-08-31	BUY	Market Buy	株式会社DOE5パーセント	activist	18.8K	¥2,186	+0.8%	¥36M ($233K)
2026-08-31	BUY	Market Buy	株式会社KANKURO	activist	1.0K	¥2,186	+0.8%	¥2M ($15K)
2026-08-31	BUY	Market Buy	株式会社ドリームキャリア	activist	33.6K	¥2,186	+0.8%	¥74M ($480K)
2026-05-11	BUY	unknown	株式会社DOE5パーセント	activist	2.5K	¥2,118	-	-
2026-05-11	BUY	Market Buy	植島幹九郎	activist	487.3K	¥2,118	+4.0%	¥4M ($28K)
2026-05-11	BUY	Market Buy	株式会社ナチュラリ	activist	293.2K	¥2,118	+4.0%	¥214M ($1.4M)
2026-05-11	BUY	Market Buy	株式会社ドリームキャリアホールディングス	activist	2.9K	¥2,118	+4.0%	¥7M ($42K)
2026-03-30	BUY	Market Buy	株式会社DOE5パーセント	activist	2.5K	¥2,252	-2.2%	¥5M ($30K)
2026-03-30	BUY	Market Buy	植島幹九郎	activist	485.9K	¥2,252	-2.2%	¥63M ($404K)
2026-03-30	BUY	Market Buy	株式会社ナチュラリ	activist	192.2K	¥2,252	-2.2%	¥181M ($1.2M)
2026-03-30	BUY	Market Buy	株式会社DOE5パーセント	activist	2.5K	¥2,252	-2.2%	¥5M ($30K)
2026-03-30	BUY	Market Buy	植島幹九郎	activist	485.9K	¥2,252	-2.2%	¥63M ($404K)
2026-03-30	BUY	Market Buy	株式会社ナチュラリ	activist	192.2K	¥2,252	-2.2%	¥181M ($1.2M)
2026-01-09	BUY	unknown	株式会社DOE5パーセント	activist	100	¥2,345	-6.1%	-
2026-01-09	BUY	unknown	植島幹九郎	activist	457.3K	¥2,345	-6.1%	¥1.1B ($6.9M)
2026-01-09	BUY	unknown	株式会社ナチュラリ	activist	111.7K	¥2,345	-6.1%	¥261M ($1.7M)
2024-07-29	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	50.5K	¥1,550	-42.1%	¥117M ($752K)
2024-07-29	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	372.2K	¥1,550	-42.1%	¥59M ($381K)
2024-07-29	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	13.6K	¥1,550	-42.1%	¥37M ($237K)
2024-07-29	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	31.8K	¥1,550	-	¥49M ($318K)
2022-12-19	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	409.9K	¥995	-	-
2022-12-19	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	125.9K	¥995	-121.4%	¥200M ($1.3M)
2022-12-19	SELL	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	36.6K	¥995	-121.4%	¥8M ($53K)
2022-06-07	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	409.9K	¥1,045	-	-
2022-06-07	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	327.2K	¥1,045	-110.8%	¥232M ($1.5M)
2022-06-07	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	44.9K	¥1,045	+110.8%	¥24M ($153K)
2022-06-07	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	1.9K	¥1,045	+110.8%	¥125M ($806K)

Frequently asked questions

Who has been buying Miyoshi Oil & Fat Co., Ltd. stock?: 8 distinct investors have filed 14 disclosed large-shareholding filings in Miyoshi Oil & Fat Co., Ltd. (4404), 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 Miyoshi Oil & Fat Co., Ltd. have?: Miyoshi Oil & Fat Co., Ltd. has 14 buy-side and 6 sell-side disclosures on record, covering ¥404M ($2.6M) in total reported value, spanning 2022-06-07 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.