Who has been buying Fuji Oil Company, Ltd. stock?

7 distinct investors have filed 9 disclosed large-shareholding filings in Fuji Oil Company, Ltd. (5017), most recently on 2025-11-05. 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 Fuji Oil Company, Ltd. have?

Fuji Oil Company, Ltd. has 9 buy-side and 5 sell-side disclosures on record, covering ¥24.3B ($156.7M) in total reported value, spanning 2021-05-27 to 2025-11-05.

Where does StockDrifts get Fuji Oil Company, Ltd. insider data?

From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.

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.

Fuji Oil Company, Ltd. 5017

Company

富士石油株式会社Fuji Oil Company, Ltd.

Investors

Buys

Total Value

¥24.3B ($156.7M)

Avg Return

+55.65%

Last Filing

2025-11-05

Fuji Oil Company, Ltd. (5017) has 9 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥24.3B ($156.7M) in reported transaction value. The earliest filing StockDrifts holds for Fuji Oil Company, Ltd. is dated 2021-05-27; the most recent is 2025-11-05. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +55.65%, 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
2025-11-05	BUY	Market Buy	サウジアラビア王国 Kingdom of Saudi Arabia	other	5.8M	¥476	+0.4%	¥2.8B ($17.8M)
2025-11-05	SELL	unknown	クウェート石油公社(Kuwait Petroleum Corporation) Kuwait Petroleum Corporation	unknown	0	¥476	-0.4%	¥2.9B ($19.0M)
2025-11-05	BUY	Market Buy	出光興産株式会社 Idemitsu Kosan Co.,Ltd.	activist	58.0M	¥476	+0.4%	¥19.5B ($125.6M)
2025-09-19	SELL	Market Buy	サウジアラビア王国 Kingdom of Saudi Arabia	other	5.8M	¥497	+3.8%	¥183M ($1.2M)
2025-09-19	BUY	Market Buy	出光興産株式会社 Idemitsu Kosan Co.,Ltd.	activist	17.0M	¥497	-3.8%	¥8.5B ($54.6M)
2024-08-05	SELL	unknown	株式会社JERA JERA Co., Inc.	other	0	¥328	-45.7%	¥2.2B ($14.5M)
2024-04-22	BUY	unknown	株式会社JERA JERA Co., Inc.	other	6.8M	¥467	+2.4%	¥3.2B ($20.6M)
2024-04-16	BUY	Market Buy	出光興産株式会社 Idemitsu Kosan Co.,Ltd.	other	17.0M	¥491	-2.6%	¥3.4B ($21.7M)
2024-03-28	SELL	unknown	住友化学株式会社 Sumitomo Chemical.co.ltd.	strategic	0	¥469	-1.9%	¥2.4B ($15.3M)
2024-03-19	BUY	Market Buy	出光興産株式会社 Idemitsu Kosan Co.,Ltd.	other	10.2M	¥384	+24.5%	¥1.9B ($12.5M)
2023-05-24	BUY	unknown	住友化学株式会社 SUMITOMO CHEMICAL COMPANY, LIMITED	strategic	5.1M	¥270	+77.0%	¥1.4B ($8.8M)
2022-08-19	SELL	unknown	株式会社エスグラントコーポレーション S-Grant Corporation Co., Ltd.	activist	804.8K	¥382	-25.1%	¥27M ($173K)
2022-08-19	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	3.0M	¥382	+25.1%	¥1.1B ($7.3M)
2021-12-09	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	7.0M	¥262	+82.4%	¥14M ($93K)
2021-12-09	BUY	Market Buy	株式会社エスグラントコーポレーション S-Grant Corporation Co., Ltd.	activist	873.1K	¥262	+82.4%	¥229M ($1.5M)
2021-08-30	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	7.0M	¥257	+86.0%	¥303M ($2.0M)
2021-08-24	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	5.8M	¥251	+90.4%	¥237M ($1.5M)
2021-06-03	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	4.8M	¥271	+76.4%	¥248M ($1.6M)
2021-05-27	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	3.9M	¥219	+118.3%	¥861M ($5.6M)

Frequently asked questions

Who has been buying Fuji Oil Company, Ltd. stock?: 7 distinct investors have filed 9 disclosed large-shareholding filings in Fuji Oil Company, Ltd. (5017), most recently on 2025-11-05. 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 Fuji Oil Company, Ltd. have?: Fuji Oil Company, Ltd. has 9 buy-side and 5 sell-side disclosures on record, covering ¥24.3B ($156.7M) in total reported value, spanning 2021-05-27 to 2025-11-05.
Where does StockDrifts get Fuji Oil Company, Ltd. insider data?: From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
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.

Source filings

Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Fuji Oil Company, Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.