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

10 distinct investors have filed 6 disclosed large-shareholding filings in JICHODO Co.,Ltd. (3597), most recently on 2026-05-13. 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 JICHODO Co.,Ltd. have?

JICHODO Co.,Ltd. has 6 buy-side and 3 sell-side disclosures on record, covering ¥9.0B ($58.0M) in total reported value, spanning 2023-05-08 to 2026-05-13.

Where does StockDrifts get JICHODO Co.,Ltd. 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.

JICHODO Co.,Ltd. 3597

Company

株式会社自重堂JICHODO Co.,Ltd.

Investors

Buys

Total Value

¥9.0B ($58.0M)

Avg Return

+10.37%

Last Filing

2026-05-13

JICHODO Co.,Ltd. (3597) has 6 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥9.0B ($58.0M) in reported transaction value. The earliest filing StockDrifts holds for JICHODO Co.,Ltd. is dated 2023-05-08; the most recent is 2026-05-13. 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 +10.37%, 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
2026-05-13	BUY	Market Buy	出原ホールディングス株式会社	strategic	245.4K	¥10,240	-1.4%	¥269M ($1.7M)
2026-05-13	BUY	unknown	出原正貴	strategic	27.6K	¥10,240	-1.4%	¥283M ($1.8M)
2026-05-11	BUY	unknown	出原幸恵	strategic	60.1K	¥10,150	-0.5%	¥610M ($3.9M)
2026-05-11	BUY	Market Buy	MASANOBU INVESTMENT CAPITAL 株式会社	strategic	245.4K	¥10,150	-0.5%	¥266M ($1.7M)
2026-05-11	BUY	unknown	出原幸恵	strategic	60.1K	¥10,150	-0.5%	¥610M ($3.9M)
2026-05-11	BUY	Market Buy	MASANOBU INVESTMENT CAPITAL 株式会社	strategic	245.4K	¥10,150	-0.5%	¥266M ($1.7M)
2024-11-20	BUY	unknown	出原正博 Masahiro Dehara	unknown	2.5M	¥9,320	+8.5%	¥23.7B ($152.7M)
2024-11-20	BUY	unknown	有限会社ユーエルディー ULD Co., Ltd.	strategic	482.0K	¥9,320	+8.5%	¥4.5B ($29.0M)
2024-11-20	BUY	Market Buy	出原正博 Masahiro Dehara	unknown	507.9K	¥9,320	+8.5%	¥4.7B ($30.5M)
2024-11-20	BUY	Market Buy	有限会社ユーエルディー ULD Co., Ltd.	strategic	96.4K	¥9,320	+8.5%	¥898M ($5.8M)
2024-11-20	BUY	unknown	出原正博 Masahiro Dehara	strategic	2.5M	¥9,320	+8.5%	¥5.6B ($36.0M)
2024-11-20	BUY	Market Buy	出原正博 Masahiro Dehara	strategic	507.9K	¥9,320	+8.5%	¥871M ($5.6M)
2024-07-29	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	17.8K	¥10,310	-1.9%	¥184M ($1.2M)
2024-07-29	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	strategic	24.5K	¥10,310	+1.9%	¥18M ($115K)
2024-07-29	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	119.1K	¥10,310	+1.9%	¥83M ($537K)
2023-05-08	BUY	unknown	MASANOBU INVESTMENT CAPITAL株式会社代表取締役出原正信 MASANOBU INVESTMENT CAPITAL Co. Ltd.	strategic	245.4K	¥7,120	+42.0%	¥1.7B ($11.3M)
2023-05-08	SELL	unknown	出原ホールディングス株式会社 Idehara Holdings Co. Ltd.	strategic	245.4K	¥7,120	-42.0%	¥1.4B ($9.3M)
2023-05-08	BUY	unknown	出原ホールディングス株式会社 Idehara Holdings Co. Ltd.	strategic	245.4K	¥7,120	+42.0%	¥1.4B ($9.3M)

Frequently asked questions

Who has been buying JICHODO Co.,Ltd. stock?: 10 distinct investors have filed 6 disclosed large-shareholding filings in JICHODO Co.,Ltd. (3597), most recently on 2026-05-13. 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 JICHODO Co.,Ltd. have?: JICHODO Co.,Ltd. has 6 buy-side and 3 sell-side disclosures on record, covering ¥9.0B ($58.0M) in total reported value, spanning 2023-05-08 to 2026-05-13.
Where does StockDrifts get JICHODO Co.,Ltd. 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 JICHODO Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.