Who has been buying KeyHolder, Inc. stock?

7 distinct investors have filed 7 disclosed large-shareholding filings in KeyHolder, Inc. (4712), most recently on 2026-05-12. 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 KeyHolder, Inc. have?

KeyHolder, Inc. has 7 buy-side and 10 sell-side disclosures on record, covering ¥3.9B ($25.3M) in total reported value, spanning 2021-12-22 to 2026-05-12.

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.

KeyHolder, Inc. 4712

Company

株式会社KeyHolderKeyHolder, Inc.

Investors

Buys

Total Value

¥3.9B ($25.3M)

Avg Return

+4.28%

Last Filing

2026-05-12

KeyHolder, Inc. (4712) has 7 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥3.9B ($25.3M) in reported transaction value. The earliest filing StockDrifts holds for KeyHolder, Inc. is dated 2021-12-22; the most recent is 2026-05-12. Across these filings the average return since disclosure is +4.28%, 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
2026-08-21	BUY	Market Buy	藤澤信義	passive	145.0K	¥795	-	-
2026-08-21	BUY	Market Buy	Jトラスト株式会社	passive	5.7M	¥795	-	-
2026-08-21	BUY	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥795	-	-
2026-08-04	BUY	Market Buy	Jトラスト株式会社	passive	5.7M	¥739	-	-
2026-08-04	BUY	Market Buy	藤澤信義	passive	145.0K	¥739	-	-
2026-08-04	BUY	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥739	-	-
2026-06-16	BUY	unknown	Jトラスト株式会社	activist	5.7M	¥805	-	-
2026-06-16	BUY	unknown	Jトラスト株式会社	activist	5.7M	¥805	-	-
2026-06-16	BUY	Market Buy	藤澤信義	passive	145.0K	¥805	-	-
2026-06-16	BUY	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥805	-	-
2026-06-16	BUY	Market Buy	藤澤信義	passive	145.0K	¥805	-	-
2026-06-16	BUY	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥805	-	-
2026-05-12	SELL	unknown	Jトラスト株式会社	activist	5.7M	¥799	-2.4%	¥6M ($39K)
2026-05-12	BUY	Market Buy	藤澤信義	passive	145.0K	¥799	-	-
2026-05-12	SELL	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥799	-2.4%	¥2M ($10K)
2026-02-02	BUY	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥727	-	-
2024-10-03	BUY	Market Buy	株式会社表参道キャピタル Omotesando Capital Co., Ltd.	passive	1.4M	¥762	-	-
2024-10-03	BUY	Market Buy	藤澤信義 Nobuyoshi Fujisawa	passive	145.0K	¥762	-	-
2024-06-14	BUY	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥906	-	-
2024-06-07	BUY	Market Buy	藤澤信義 Nobuyoshi Fujisawa	passive	145.0K	¥916	-	-
2024-06-07	BUY	Market Buy	株式会社表参道キャピタル Omotesando Capital Co., Ltd.	passive	1.4M	¥916	-	-
2023-08-16	SELL	unknown	倉田将志 Masashi Kurata	unknown	0	¥852	+4.0%	¥899M ($5.8M)
2023-08-16	BUY	Market Buy	藤澤信義 Nobuyoshi Fujisawa	passive	145.0K	¥852	-4.0%	¥124M ($797K)
2023-08-16	BUY	Market Buy	株式会社表参道キャピタル Omotesando Capital Co., Ltd.	passive	1.4M	¥852	-4.0%	¥1.2B ($7.5M)
2023-08-02	BUY	Market Buy	倉田将志 Masashi Kurata	passive	1.1M	¥1,000	-	-
2023-07-21	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	170.7K	¥1,056	-22.5%	¥167M ($1.1M)
2023-07-20	BUY	Market Buy	倉田将志 Masashi Kurata	passive	1.1M	¥1,054	-	-
2023-07-20	SELL	Market Buy	倉田将志 Masashi Kurata	passive	1.1M	¥1,054	+22.4%	¥336M ($2.2M)
2023-05-24	SELL	Market Buy	倉田将志 Masashi Kurata	passive	1.1M	¥1,047	+21.9%	¥334M ($2.2M)
2023-05-19	SELL	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	1.2M	¥1,053	+22.3%	¥371M ($2.4M)
2023-05-18	BUY	Market Buy	倉田将志 Masashi Kurata	passive	1.4M	¥1,043	-	-
2023-05-18	BUY	Market Buy	倉田将志 Masashi Kurata	passive	1.4M	¥1,043	-	-
2023-04-03	BUY	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥977	-	-
2023-01-20	BUY	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥736	-	-
2023-01-20	BUY	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥736	-	-
2023-01-19	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	1.6M	¥706	+15.9%	¥1.1B ($7.2M)
2023-01-10	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	184.5K	¥715	+14.4%	¥120M ($777K)
2022-12-16	SELL	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥743	-10.1%	¥1M ($9K)
2022-09-27	BUY	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥828	-	-
2022-08-22	BUY	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥830	-	-
2022-08-22	SELL	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥830	+1.4%	¥164M ($1.1M)
2022-08-19	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	1.6M	¥857	-4.5%	¥1.3B ($8.6M)
2022-04-21	SELL	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥592	-38.2%	¥482M ($3.1M)
2021-12-22	BUY	Market Buy	秋元康 Yasushi Akimoto	passive	2.5M	¥580	+41.0%	¥1.4B ($8.8M)
2021-12-22	SELL	Market Buy	秋元伸介 Shinsuke Akimoto	passive	557.0K	¥580	-41.0%	¥107M ($688K)

Frequently asked questions

Who has been buying KeyHolder, Inc. stock?: 7 distinct investors have filed 7 disclosed large-shareholding filings in KeyHolder, Inc. (4712), most recently on 2026-05-12. 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 KeyHolder, Inc. have?: KeyHolder, Inc. has 7 buy-side and 10 sell-side disclosures on record, covering ¥3.9B ($25.3M) in total reported value, spanning 2021-12-22 to 2026-05-12.
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.