Who has been buying AuBEX Corp. stock?

4 distinct investors have filed 3 disclosed large-shareholding filings in AuBEX Corp. (3583), most recently on 2026-03-23. 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 AuBEX Corp. have?

AuBEX Corp. has 3 buy-side and 6 sell-side disclosures on record, covering ¥167M ($1.1M) in total reported value, spanning 2021-03-17 to 2026-03-23.

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.

AuBEX Corp. 3583

Company

オーベクス株式会社AuBEX Corp.

Investors

Buys

Total Value

¥167M ($1.1M)

Avg Return

+3.14%

Last Filing

2026-03-23

AuBEX Corp. (3583) has 3 disclosed large-shareholding filings and 6 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥167M ($1.1M) in reported transaction value. The earliest filing StockDrifts holds for AuBEX Corp. is dated 2021-03-17; the most recent is 2026-03-23. Across these filings the average return since disclosure is +3.14%, 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
2026-07-07	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	268.7K	¥1,238	-11.4%	¥45M ($289K)
2026-03-23	BUY	Market Buy	若築建設株式会社 WAKACHIKU CONSTRUCTION CO.,LTD.	corporate	423.2K	¥1,339	+3.0%	¥40M ($259K)
2026-03-23	BUY	Market Buy	株式会社麻生 Aso Corporation	strategic	445.6K	¥1,339	+3.0%	¥16M ($102K)
2025-01-08	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	305.1K	¥1,250	-10.3%	¥75M ($481K)
2024-12-04	BUY	Market Buy	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	364.7K	¥1,166	+18.3%	¥111M ($714K)
2024-11-18	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	2.9K	¥1,199	-15.0%	¥111M ($718K)
2024-11-18	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	269.7K	¥1,199	-	-
2024-08-01	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	95.4K	¥1,128	-	-
2024-08-01	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	269.7K	¥1,128	-22.3%	¥52M ($333K)
2021-11-30	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	315.4K	¥847	-62.8%	¥1M ($7K)
2021-11-30	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	95.4K	¥847	-62.8%	¥18M ($115K)
2021-03-17	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	116.5K	¥588.762	-134.2%	¥11M ($72K)

Frequently asked questions

Who has been buying AuBEX Corp. stock?: 4 distinct investors have filed 3 disclosed large-shareholding filings in AuBEX Corp. (3583), most recently on 2026-03-23. 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 AuBEX Corp. have?: AuBEX Corp. has 3 buy-side and 6 sell-side disclosures on record, covering ¥167M ($1.1M) in total reported value, spanning 2021-03-17 to 2026-03-23.
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.