Who has been buying OpenDoor Inc. stock?

6 distinct investors have filed 9 disclosed large-shareholding filings in OpenDoor Inc. (3926), most recently on 2026-04-22. 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 OpenDoor Inc. have?

OpenDoor Inc. has 9 buy-side and 1 sell-side disclosures on record, covering ¥2.6B ($16.8M) in total reported value, spanning 2021-11-18 to 2026-04-22.

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.

OpenDoor Inc. 3926

Company

株式会社オープンドアOpenDoor Inc.

Investors

Buys

Total Value

¥2.6B ($16.8M)

Avg Return

-60.67%

Last Filing

2026-04-22

OpenDoor Inc. (3926) has 9 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥2.6B ($16.8M) in reported transaction value. The earliest filing StockDrifts holds for OpenDoor Inc. is dated 2021-11-18; the most recent is 2026-04-22. Across these filings the average return since disclosure is -60.67%, 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
2026-09-25	BUY	Market Buy	株式会社くふうカンパニーホールディングス Kufu Company Holdings Inc.	passive	3.2M	¥424	+0.0%	¥134M ($864K)
2026-08-13	BUY	Market Buy	株式会社くふうカンパニーホールディングス Kufu Company Holdings Inc.	passive	2.9M	¥402	+5.5%	¥128M ($827K)
2026-07-13	BUY	Market Buy	株式会社くふうカンパニーホールディングス Kufu Company Holdings Inc.	passive	2.6M	¥345	+22.9%	¥108M ($696K)
2026-04-22	BUY	Market Buy	株式会社くふうカンパニーホールディングス Kufu Company Holdings Inc.	passive	2.3M	¥319	+32.9%	¥111M ($714K)
2026-02-24	BUY	Market Buy	株式会社くふうカンパニーホールディングス Kufu Company Holdings Inc.	passive	1.9M	¥353	+20.1%	¥132M ($854K)
2025-10-14	BUY	Market Buy	株式会社くふうカンパニーホールディングス Kufu Company Holdings Inc.	passive	1.6M	¥415	+2.2%	¥651M ($4.2M)
2025-08-06	BUY	unknown	関根大介 Daisuke Sekine	activist	16.0M	¥512	-	-
2025-08-06	BUY	unknown	株式会社ザ・パス・インベストメント The Path Investment Co., Ltd.	activist	1.7M	¥512	-	-
2022-10-21	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	76.6K	¥1,827	-76.8%	¥11M ($74K)
2022-10-21	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.1M	¥1,827	-76.8%	¥2.0B ($12.9M)
2022-10-21	BUY	Market Buy	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	274.9K	¥1,827	-76.8%	¥40M ($258K)
2022-03-23	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.5M	¥1,997	-78.8%	¥3.0B ($19.2M)
2022-03-23	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	72.2K	¥1,997	-78.8%	¥144M ($930K)
2022-03-23	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	252.9K	¥1,997	-78.8%	¥505M ($3.3M)
2021-11-18	SELL	unknown	関根大介 Daisuke Sekine	activist	16.0M	¥2,276	+81.4%	¥1.9B ($12.0M)
2021-11-18	BUY	unknown	株式会社ザ・パス・インベストメント The Path Investment Co., Ltd.	activist	1.7M	¥2,276	-	-

Frequently asked questions

Who has been buying OpenDoor Inc. stock?: 6 distinct investors have filed 9 disclosed large-shareholding filings in OpenDoor Inc. (3926), most recently on 2026-04-22. 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 OpenDoor Inc. have?: OpenDoor Inc. has 9 buy-side and 1 sell-side disclosures on record, covering ¥2.6B ($16.8M) in total reported value, spanning 2021-11-18 to 2026-04-22.
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.