Who has been buying Maruwn Corporation stock?

7 distinct investors have filed 7 disclosed large-shareholding filings in Maruwn Corporation (9067), most recently on 2026-03-23. 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 Maruwn Corporation have?

Maruwn Corporation has 7 buy-side and 5 sell-side disclosures on record, covering ¥26.9B ($173.7M) in total reported value, spanning 2021-04-22 to 2026-03-23.

Where does StockDrifts get Maruwn Corporation 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.

Maruwn Corporation 9067

Company

株式会社丸運Maruwn Corporation

Investors

Buys

Total Value

¥26.9B ($173.7M)

Avg Return

+62.88%

Last Filing

2026-03-23

Maruwn Corporation (9067) has 7 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥26.9B ($173.7M) in reported transaction value. The earliest filing StockDrifts holds for Maruwn Corporation is dated 2021-04-22; the most recent is 2026-03-23. 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 +62.88%, 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
2026-03-23	SELL	unknown	ゴールドマン・サックス・インターナショナル Goldman Sachs International	other	32.1K	¥942	+0.0%	¥1.3B ($8.7M)
2026-03-11	SELL	unknown	佐藤謙一 SATO KENICHI	unknown	0	¥941	-0.1%	¥1.5B ($9.5M)
2026-03-11	SELL	unknown	株式会社佐藤企業 SATO KIGYO CO.,LTD.	unknown	0	¥941	-0.1%	¥4.8B ($31.2M)
2026-03-06	BUY	unknown	JX金属株式会社 JX Metals Corporation	activist	11.0M	¥940	+0.2%	¥10.4B ($67.0M)
2026-03-06	BUY	Market Buy	センコーグループホールディングス株式会社 SENKO Group Holdings Co., Ltd.	activist	16.7M	¥940	+0.2%	¥15.5B ($100.0M)
2026-02-20	BUY	unknown	ゴールドマン・サックス・インターナショナル(Goldman Sachs International) Goldman Sachs International	other	1.5M	¥947	-0.5%	¥1.4B ($8.9M)
2025-12-01	SELL	Market Buy	ミツワ樹脂工業株式会社取締役社長平野正浩 Mitsuwa resin industry Ltd.	passive	1.1M	¥949	+0.7%	¥577M ($3.7M)
2025-11-14	BUY	unknown	センコーグループホールディングス株式会社 SENKO Group Holdings Co., Ltd.	activist	11.3M	¥855	+10.2%	¥9.6B ($62.2M)
2025-11-14	BUY	Market Buy	JX金属株式会社 JX Advanced Metals Corporation	activist	11.3M	¥855	+10.2%	¥196M ($1.3M)
2025-09-25	BUY	Market Buy	ミツワ樹脂工業株式会社取締役社長平野正浩 Mitsuwa resin industry Ltd.	passive	1.8M	¥706	+33.4%	¥207M ($1.3M)
2025-09-16	BUY	Market Buy	ミツワ樹脂工業株式会社取締役社長平野正浩 Mitsuwa resin industry Ltd.	passive	1.5M	¥634	+48.6%	¥926M ($6.0M)
2023-01-16	BUY	unknown	JX金属株式会社 JX Nippon Mining & Metals Corporation	other	11.0M	¥215	+338.1%	¥2.4B ($15.3M)
2023-01-12	SELL	unknown	ENEOSホールディングス株式会社 ENEOS Holdings, Inc	unknown	0	¥216	-336.1%	¥2.4B ($15.4M)
2021-04-22	BUY	Market Buy	株式会社佐藤企業 Sato Kigyo Co.,Ltd.	passive	5.1M	¥269	+250.2%	¥1.4B ($8.9M)

Frequently asked questions

Who has been buying Maruwn Corporation stock?: 7 distinct investors have filed 7 disclosed large-shareholding filings in Maruwn Corporation (9067), most recently on 2026-03-23. 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 Maruwn Corporation have?: Maruwn Corporation has 7 buy-side and 5 sell-side disclosures on record, covering ¥26.9B ($173.7M) in total reported value, spanning 2021-04-22 to 2026-03-23.
Where does StockDrifts get Maruwn Corporation 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 Maruwn Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.