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

15 distinct investors have filed 19 disclosed large-shareholding filings in eREX Co.,Ltd. (9517), most recently on 2026-03-24. 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 eREX Co.,Ltd. have?

eREX Co.,Ltd. has 19 buy-side and 35 sell-side disclosures on record, covering ¥26.4B ($170.1M) in total reported value, spanning 2021-11-29 to 2026-03-24.

Where does StockDrifts get eREX 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.

eREX Co.,Ltd. 9517

Company

イーレックス株式会社eREX Co.,Ltd.

Investors

Buys

Total Value

¥26.4B ($170.1M)

Avg Return

+10.01%

Last Filing

2026-03-24

eREX Co.,Ltd. (9517) has 19 disclosed large-shareholding filings and 35 disclosed disposals on record, filed by 15 distinct investors. Together those filings cover ¥26.4B ($170.1M) in reported transaction value. The earliest filing StockDrifts holds for eREX Co.,Ltd. is dated 2021-11-29; the most recent is 2026-03-24. 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 +10.01%, 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
2026-06-22	BUY	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥727	+22.0%	¥3.9B ($25.1M)
2026-06-22	BUY	Market Buy	さくら損害保険株式会社	passive	103.1K	¥727	+22.0%	¥75M ($484K)
2026-06-22	BUY	Market Buy	株式会社UH6	passive	3.5M	¥727	+22.0%	¥2.6B ($16.6M)
2026-06-22	BUY	Market Buy	株式会社UH Partners 3	passive	6.6M	¥727	+22.0%	¥4.8B ($31.2M)
2026-06-22	BUY	Market Buy	光通信株式会社	passive	2.2M	¥727	+22.0%	¥119M ($770K)
2026-03-24	BUY	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥879	-7.2%	¥5.0B ($32.5M)
2026-03-24	BUY	Market Buy	さくら損害保険株式会社	passive	103.1K	¥879	-7.2%	¥97M ($627K)
2026-03-24	BUY	Market Buy	株式会社UH6	passive	3.5M	¥879	-7.2%	¥3.3B ($21.5M)
2026-03-24	SELL	Market Buy	株式会社UH5	unknown	0	¥879	-7.2%	-
2026-03-24	BUY	Market Buy	株式会社UH Partners 3	passive	6.6M	¥879	-7.2%	¥6.3B ($40.4M)
2026-03-24	BUY	Market Buy	光通信株式会社	passive	2.0M	¥879	+7.2%	¥1.9B ($12.4M)
2026-02-17	BUY	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥683	-37.9%	¥5.0B ($32.5M)
2026-02-17	BUY	Market Buy	さくら損害保険株式会社	passive	103.1K	¥683	-37.9%	¥97M ($627K)
2026-02-17	BUY	Market Buy	株式会社UH5	passive	3.5M	¥683	-37.9%	¥3.3B ($21.5M)
2026-02-17	BUY	Market Buy	株式会社UH Partners 3	passive	6.6M	¥683	-37.9%	¥6.3B ($40.4M)
2026-02-17	BUY	Market Buy	光通信株式会社	passive	1.8M	¥683	+37.9%	¥1.7B ($10.9M)
2025-09-29	SELL	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	unknown	5.3M	¥745	-26.4%	¥6M ($38K)
2025-09-29	BUY	Market Buy	さくら損害保険株式会社 Sakura General Insurance Co., Ltd.	passive	103.1K	¥745	+26.4%	¥77M ($496K)
2025-09-29	SELL	Market Buy	株式会社UH5 UH5 Co., Ltd.	passive	3.5M	¥745	-26.4%	¥6M ($38K)
2025-09-29	SELL	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	6.6M	¥745	-26.4%	¥6M ($38K)
2025-09-29	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	994.5K	¥745	+26.4%	¥536M ($3.5M)
2025-06-13	BUY	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥773	+21.9%	¥4.1B ($26.7M)
2025-06-13	BUY	Market Buy	さくら損害保険株式会社 Sakura General Insurance Co., Ltd.	passive	103.1K	¥773	+21.9%	¥80M ($514K)
2025-06-13	BUY	Market Buy	株式会社UH5 UH5 Co., Ltd.	passive	3.5M	¥773	+21.9%	¥2.7B ($17.7M)
2025-06-13	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	6.6M	¥773	+21.9%	¥398M ($2.6M)
2025-06-13	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	274.6K	¥773	+21.9%	¥21.1B ($136.3M)
2025-03-17	SELL	Market Buy	光通信株式会社 Hikari Tsushin K.K.	unknown	0	¥835	-12.8%	¥49.5B ($319.6M)
2025-03-17	BUY	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥835	+12.8%	¥4.5B ($28.8M)
2025-03-17	BUY	Market Buy	さくら損害保険株式会社 Sakura General Insurance Co., Ltd.	passive	103.1K	¥835	+12.8%	¥86M ($555K)
2025-03-17	BUY	Market Buy	株式会社UH5 UH5 Co., Ltd.	passive	3.5M	¥835	+12.8%	¥3.0B ($19.1M)
2025-03-17	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	6.1M	¥835	+12.8%	¥352M ($2.3M)
2025-03-17	SELL	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	unknown	0	¥835	-12.8%	¥2.5B ($15.9M)
2025-02-21	BUY	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥764	+23.3%	¥4.1B ($26.4M)
2025-02-21	BUY	Market Buy	さくら損害保険株式会社 Sakura General Insurance Co., Ltd.	passive	103.1K	¥764	+23.3%	¥79M ($508K)
2025-02-21	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	5.7M	¥764	+23.3%	¥531M ($3.4M)
2025-02-21	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	2.9M	¥764	+23.3%	¥2.3B ($14.5M)
2025-02-21	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	594.2K	¥764	+23.3%	¥454M ($2.9M)
2025-02-04	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	5.0M	¥803	+17.3%	¥652M ($4.2M)
2025-02-04	SELL	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	594.2K	¥803	-17.3%	¥2.5B ($16.2M)
2025-02-04	SELL	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥803	-17.3%	¥213M ($1.4M)
2025-02-04	SELL	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	2.9M	¥803	-17.3%	¥113M ($728K)
2025-01-17	BUY	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥776	+21.4%	¥4.1B ($26.8M)
2025-01-17	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	4.0M	¥776	+21.4%	¥589M ($3.8M)
2025-01-17	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	2.9M	¥776	+21.4%	¥2.3B ($14.8M)
2025-01-17	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	594.2K	¥776	+21.4%	¥461M ($3.0M)
2024-11-19	SELL	Market Buy	ヒカリ・ツウシン・インベストメンツ・アジア・プライベート・リミテッド Hikari Tsushin Investments Asia Pte. Ltd.	passive	5.3M	¥657	-43.4%	¥880M ($5.7M)
2024-11-19	SELL	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	3.2M	¥657	-43.4%	¥83M ($536K)
2024-11-19	SELL	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	2.9M	¥657	-43.4%	¥489M ($3.2M)
2024-11-19	SELL	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	594.2K	¥657	-43.4%	¥98M ($631K)
2024-10-04	SELL	Market Buy	上田八木短資株式会社 Ueda Yagi Tanshi Co., Ltd.	passive	3.4M	¥693	-35.9%	¥2.0B ($12.6M)

Showing the 50 most recent of 97 filings.

Frequently asked questions

Who has been buying eREX Co.,Ltd. stock?: 15 distinct investors have filed 19 disclosed large-shareholding filings in eREX Co.,Ltd. (9517), most recently on 2026-03-24. 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 eREX Co.,Ltd. have?: eREX Co.,Ltd. has 19 buy-side and 35 sell-side disclosures on record, covering ¥26.4B ($170.1M) in total reported value, spanning 2021-11-29 to 2026-03-24.
Where does StockDrifts get eREX 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 eREX Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.