Who has been buying Hikari Business Form Co., Ltd. stock?

6 distinct investors have filed 12 disclosed large-shareholding filings in Hikari Business Form Co., Ltd. (3948), most recently on 2026-04-10. 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 Hikari Business Form Co., Ltd. have?

Hikari Business Form Co., Ltd. has 12 buy-side and 0 sell-side disclosures on record, covering ¥794M ($5.1M) in total reported value, spanning 2021-04-08 to 2026-04-10.

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.

Hikari Business Form Co., Ltd. 3948

Company

光ビジネスフォーム株式会社Hikari Business Form Co., Ltd.

Investors

Buys

Total Value

¥794M ($5.1M)

Avg Return

+57.00%

Last Filing

2026-04-10

Hikari Business Form Co., Ltd. (3948) has 12 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥794M ($5.1M) in reported transaction value. The earliest filing StockDrifts holds for Hikari Business Form Co., Ltd. is dated 2021-04-08; the most recent is 2026-04-10. Across these filings the average return since disclosure is +57.00%, 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
2026-07-28	BUY	Market Buy	Be Brave株式会社代表取締役泉田和人 Be Brave Inc.	activist	601.1K	¥1,140	+4.0%	¥70M ($449K)
2026-04-10	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	350.3K	¥1,180	+0.4%	¥69M ($443K)
2025-08-06	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	292.0K	¥1,205	-1.7%	¥352M ($2.3M)
2025-07-03	BUY	Market Buy	Be Brave株式会社代表取締役泉田和人 Be Brave Inc.	activist	540.2K	¥1,264	-6.3%	¥85M ($550K)
2025-06-19	BUY	Market Buy	Be Brave株式会社代表取締役泉田和人 Be Brave Inc.	activist	472.5K	¥1,109	+6.8%	¥69M ($445K)
2025-05-13	BUY	Market Buy	Be Brave株式会社代表取締役泉田和人 Be Brave Inc.	activist	410.8K	¥987	+20.1%	¥60M ($385K)
2025-04-25	BUY	Market Buy	Be Brave株式会社代表取締役泉田和人 Be Brave Inc.	activist	349.8K	¥1,006	+17.8%	¥60M ($385K)
2025-03-26	BUY	Market Buy	Be Brave株式会社代表取締役泉田和人 Be Brave Inc.	activist	290.8K	¥796	+48.9%	¥231M ($1.5M)
2024-08-01	BUY	unknown	エルエヌエスマネジメント(LNS Management Pte. Ltd.) LNS Management Pte. Ltd.	activist	300.2K	¥856	+38.4%	¥257M ($1.7M)
2021-12-15	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	245.1K	¥626	+89.3%	¥151M ($977K)
2021-12-15	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	100	¥626	-	-
2021-12-15	BUY	Market Buy	HIKARI SHINING STAR PTE.LTD.	passive	1.0K	¥626	-	-
2021-04-08	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	290.3K	¥465	+154.8%	¥135M ($871K)
2021-04-08	BUY	Market Buy	株式会社鹿児島東インド会社 Kagoshima East India Inc	passive	100	¥465	+154.8%	¥47K ($300)
2021-04-08	BUY	Market Buy	HIKARI SHINING STAR PTE.LTD.	passive	1.0K	¥465	+154.8%	¥465K ($3K)

Frequently asked questions

Who has been buying Hikari Business Form Co., Ltd. stock?: 6 distinct investors have filed 12 disclosed large-shareholding filings in Hikari Business Form Co., Ltd. (3948), most recently on 2026-04-10. 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 Hikari Business Form Co., Ltd. have?: Hikari Business Form Co., Ltd. has 12 buy-side and 0 sell-side disclosures on record, covering ¥794M ($5.1M) in total reported value, spanning 2021-04-08 to 2026-04-10.
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.