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.

Where does StockDrifts get KeyHolder, Inc. 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.

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. 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 +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
2026-08-04	BUY	Market Buy	藤澤信義	passive	145.0K	¥739	+6.6%	¥107M ($691K)
2026-08-04	BUY	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥739	+6.6%	¥1.0B ($6.5M)
2026-08-04	BUY	Market Buy	Jトラスト株式会社	passive	5.7M	¥739	+6.6%	¥4.2B ($27.0M)
2026-06-16	BUY	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥805	-8.9%	¥1.1B ($7.1M)
2026-06-16	BUY	Market Buy	藤澤信義	passive	145.0K	¥805	-8.9%	¥117M ($753K)
2026-06-16	BUY	unknown	Jトラスト株式会社	activist	5.7M	¥805	-8.9%	¥4.6B ($29.4M)
2026-06-16	BUY	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥805	-8.9%	¥1.1B ($7.1M)
2026-06-16	BUY	Market Buy	藤澤信義	passive	145.0K	¥805	-8.9%	¥117M ($753K)
2026-06-16	BUY	unknown	Jトラスト株式会社	activist	5.7M	¥805	-8.9%	¥4.6B ($29.4M)
2026-05-12	SELL	Market Buy	株式会社表参道キャピタル	passive	1.4M	¥799	+0.9%	¥2M ($10K)
2026-05-12	BUY	Market Buy	藤澤信義	passive	145.0K	¥799	-0.9%	¥116M ($747K)
2026-05-12	SELL	unknown	Jトラスト株式会社	activist	5.7M	¥799	+0.9%	¥6M ($39K)
2026-02-02	BUY	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥727	+11.6%	¥4.1B ($26.5M)
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	+6.4%	¥1.0B ($6.7M)
2024-10-03	BUY	Market Buy	藤澤信義 Nobuyoshi Fujisawa	passive	145.0K	¥762	+6.4%	¥110M ($713K)
2024-06-14	BUY	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥906	-10.5%	¥5.1B ($33.1M)
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	-11.5%	¥1.3B ($8.1M)
2024-06-07	BUY	Market Buy	藤澤信義 Nobuyoshi Fujisawa	passive	145.0K	¥916	-11.5%	¥133M ($857K)
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	-4.8%	¥1.2B ($7.5M)
2023-08-16	BUY	Market Buy	藤澤信義 Nobuyoshi Fujisawa	passive	145.0K	¥852	-4.8%	¥124M ($797K)
2023-08-16	SELL	unknown	倉田将志 Masashi Kurata	unknown	0	¥852	+4.8%	¥899M ($5.8M)
2023-08-02	BUY	Market Buy	倉田将志 Masashi Kurata	passive	1.1M	¥1,000	-18.9%	¥1.1B ($6.8M)
2023-07-21	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	170.7K	¥1,056	-23.2%	¥167M ($1.1M)
2023-07-20	SELL	Market Buy	倉田将志 Masashi Kurata	passive	1.1M	¥1,054	+23.1%	¥336M ($2.2M)
2023-07-20	BUY	Market Buy	倉田将志 Masashi Kurata	passive	1.1M	¥1,054	-23.1%	¥1.1B ($7.2M)
2023-05-24	SELL	Market Buy	倉田将志 Masashi Kurata	passive	1.1M	¥1,047	+22.5%	¥334M ($2.2M)
2023-05-19	SELL	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	1.2M	¥1,053	+23.0%	¥371M ($2.4M)
2023-05-18	BUY	Market Buy	倉田将志 Masashi Kurata	passive	1.4M	¥1,043	-22.2%	¥1.4B ($9.2M)
2023-05-18	BUY	Market Buy	倉田将志 Masashi Kurata	passive	1.4M	¥1,043	-22.2%	¥1.4B ($9.2M)
2023-04-03	BUY	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥977	-17.0%	¥5.5B ($35.7M)
2023-01-20	BUY	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥736	+10.2%	¥1.0B ($6.5M)
2023-01-20	BUY	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥736	+10.2%	¥1.0B ($6.5M)
2023-01-19	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	1.6M	¥706	+14.9%	¥1.1B ($7.2M)
2023-01-10	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	184.5K	¥715	+13.4%	¥120M ($777K)
2022-12-16	SELL	unknown	Jトラスト株式会社 J Trust Co.,Ltd.	activist	5.7M	¥743	-9.2%	¥1M ($9K)
2022-09-27	BUY	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥828	-2.0%	¥1.1B ($7.3M)
2022-08-22	SELL	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥830	+2.3%	¥164M ($1.1M)
2022-08-22	BUY	negotiated	倉田将志 Masashi Kurata	activist	1.4M	¥830	-2.3%	¥1.1B ($7.4M)
2022-08-19	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	1.6M	¥857	-5.4%	¥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	-37.0%	¥482M ($3.1M)
2021-12-22	SELL	Market Buy	秋元伸介 Shinsuke Akimoto	passive	557.0K	¥580	-39.8%	¥107M ($688K)
2021-12-22	BUY	Market Buy	秋元康 Yasushi Akimoto	passive	2.5M	¥580	+39.8%	¥1.4B ($8.8M)

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.
Where does StockDrifts get KeyHolder, Inc. 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 KeyHolder, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.