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

2 distinct investors have filed 4 disclosed large-shareholding filings in AViC Co., Ltd. (9554), 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 AViC Co., Ltd. have?

AViC Co., Ltd. has 4 buy-side and 7 sell-side disclosures on record, covering ¥2.4B ($15.6M) in total reported value, spanning 2022-07-07 to 2026-05-13.

Where does StockDrifts get AViC 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.

AViC Co., Ltd. 9554

Company

株式会社AViCAViC Co., Ltd.

Investors

Buys

Total Value

¥2.4B ($15.6M)

Avg Return

+23.98%

Last Filing

2026-05-13

AViC Co., Ltd. (9554) has 4 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥2.4B ($15.6M) in reported transaction value. The earliest filing StockDrifts holds for AViC Co., Ltd. is dated 2022-07-07; 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 +23.98%, 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
2026-06-02	BUY	Market Buy	株式会社ミダスキャピタル Midas Capital Co.,Ltd.	passive	318.3K	¥1,727	-11.9%	¥550M ($3.5M)
2026-06-01	SELL	unknown	株式会社市原ホールディングス Ichihara holdings Co., Ltd.	activist	2.2M	¥1,683	+9.6%	¥371M ($2.4M)
2026-05-13	BUY	Market Buy	岩田匡平 Kyohei Iwata	passive	1.5M	¥1,452	+10.2%	¥93M ($602K)
2026-05-13	BUY	Market Buy	岩田匡平 Kyohei Iwata	passive	1.5M	¥1,452	+10.2%	¥93M ($602K)
2026-05-12	BUY	Market Buy	岩田匡平 Kyohei Iwata	passive	1.5M	¥1,438	+11.3%	¥85M ($549K)
2026-05-12	BUY	Market Buy	岩田匡平 Kyohei Iwata	passive	1.5M	¥1,438	+11.3%	¥85M ($549K)
2025-09-22	SELL	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,882	+20.2%	¥26M ($169K)
2025-09-10	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,982	-24.3%	¥2.8B ($18.0M)
2025-09-10	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,982	-24.3%	¥2.8B ($18.0M)
2025-09-10	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,982	-24.3%	¥2.8B ($18.0M)
2025-09-10	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,982	-24.3%	¥2.8B ($18.0M)
2025-09-08	SELL	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,980	+24.2%	¥61M ($392K)
2025-09-08	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,980	-24.2%	¥61M ($392K)
2025-01-29	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,540	-2.5%	¥2.2B ($14.0M)
2025-01-29	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,540	-2.5%	¥2.2B ($14.0M)
2023-12-01	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥710	+111.4%	¥1.0B ($6.5M)
2023-11-02	SELL	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥693	-116.6%	¥61M ($392K)
2023-09-26	SELL	unknown	株式会社市原ホールディングス Ichihara holdings Co., Ltd.	activist	2.2M	¥752	-99.6%	¥24M ($154K)
2023-03-09	SELL	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥1,088	-38.0%	¥22M ($142K)
2022-08-19	SELL	unknown	株式会社市原ホールディングス Ichihara holdings Co., Ltd.	activist	2.2M	¥1,079	-39.1%	¥181M ($1.2M)
2022-08-19	BUY	unknown	株式会社市原ホールディングス Ichihara holdings Co., Ltd.	activist	2.2M	¥1,079	+39.1%	¥2.3B ($15.2M)
2022-08-03	SELL	unknown	株式会社市原ホールディングス Ichihara holdings Co., Ltd.	activist	2.2M	¥942	-59.3%	¥158M ($1.0M)
2022-07-07	BUY	unknown	株式会社市原ホールディングス Ichihara Holdings Co., Ltd.	activist	2.3M	¥995	+50.9%	¥2.3B ($15.0M)
2022-07-07	BUY	unknown	岩田匡平 Kyohei Iwata	activist	1.4M	¥995	+50.9%	¥1.4B ($9.1M)

Frequently asked questions

Who has been buying AViC Co., Ltd. stock?: 2 distinct investors have filed 4 disclosed large-shareholding filings in AViC Co., Ltd. (9554), 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 AViC Co., Ltd. have?: AViC Co., Ltd. has 4 buy-side and 7 sell-side disclosures on record, covering ¥2.4B ($15.6M) in total reported value, spanning 2022-07-07 to 2026-05-13.
Where does StockDrifts get AViC 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 AViC Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.