Who has been buying Oomitsu Co., Ltd. stock?

5 distinct investors have filed 0 disclosed large-shareholding filings in Oomitsu Co., Ltd. (3160), most recently on 2026-03-26. 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 Oomitsu Co., Ltd. have?

Oomitsu Co., Ltd. has 0 buy-side and 8 sell-side disclosures on record, spanning 2021-06-02 to 2026-03-26.

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.

Oomitsu Co., Ltd. 3160

Company

株式会社大光Oomitsu Co., Ltd.

Investors

Buys

Total Value

—

Avg Return

—

Last Filing

2026-03-26

Oomitsu Co., Ltd. (3160) has 0 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 5 distinct investors. The earliest filing StockDrifts holds for Oomitsu Co., Ltd. is dated 2021-06-02; the most recent is 2026-03-26.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2026-06-04	BUY	negotiated	金森武	activist	420.0K	¥566	-	-
2026-06-04	BUY	unknown	株式会社KYR	activist	1.6M	¥566	-	-
2026-03-26	SELL	unknown	金森智 Kanamori satosi	activist	570.0K	¥579	+0.5%	¥131M ($845K)
2026-03-18	BUY	negotiated	金森武	activist	420.0K	¥583	-	-
2026-03-18	BUY	negotiated	株式会社H2A	activist	768.0K	¥583	-	-
2026-03-18	BUY	negotiated	株式会社KYR	activist	1.6M	¥583	-	-
2026-03-18	BUY	negotiated	金森久	activist	400.0K	¥583	-	-
2025-12-26	SELL	negotiated	金森武	activist	420.0K	¥555	-3.8%	¥916M ($5.9M)
2025-12-26	BUY	negotiated	株式会社KYR	activist	1.6M	¥555	-	¥916M ($5.9M)
2025-12-26	SELL	negotiated	金森久	activist	400.0K	¥555	-3.8%	¥495M ($3.2M)
2025-12-26	BUY	negotiated	株式会社H2A	activist	768.0K	¥555	-	¥426M ($2.7M)
2025-12-26	SELL	negotiated	金森武	activist	420.0K	¥555	-3.8%	¥916M ($5.9M)
2025-12-26	BUY	negotiated	株式会社KYR	activist	1.6M	¥555	-	¥916M ($5.9M)
2025-12-26	SELL	negotiated	金森久	activist	400.0K	¥555	-3.8%	¥495M ($3.2M)
2025-12-26	BUY	negotiated	株式会社H2A	activist	768.0K	¥555	-	¥426M ($2.7M)
2025-12-03	BUY	negotiated	金森武 kanamori takesi	activist	2.1M	¥563	-	-
2025-06-05	SELL	negotiated	金森武 kanamori takesi	activist	2.1M	¥549	-4.9%	¥18M ($116K)
2023-03-22	SELL	negotiated	金森武 kanamori takesi	activist	2.1M	¥593	+2.9%	¥277M ($1.8M)
2023-03-14	BUY	unknown	金森智 Kanamori satosi	activist	720.0K	¥597	-	-
2023-03-14	SELL	negotiated	金森久 Kanamori Hisashi	activist	1.2M	¥597	+3.5%	¥82M ($528K)
2023-03-14	BUY	negotiated	金森武 kanamori takesi	activist	2.3M	¥597	-	-
2022-12-02	BUY	negotiated	金森武 kanamori takesi	activist	2.3M	¥665	-	-
2021-12-03	BUY	negotiated	金森武 kanamori takesi	activist	2.3M	¥676	-	-
2021-06-02	BUY	negotiated	金森武 kanamori takesi	activist	2.3M	¥674	-	-

Frequently asked questions

Who has been buying Oomitsu Co., Ltd. stock?: 5 distinct investors have filed 0 disclosed large-shareholding filings in Oomitsu Co., Ltd. (3160), most recently on 2026-03-26. 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 Oomitsu Co., Ltd. have?: Oomitsu Co., Ltd. has 0 buy-side and 8 sell-side disclosures on record, spanning 2021-06-02 to 2026-03-26.
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.