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

6 distinct investors have filed 7 disclosed large-shareholding filings in Acom Co., Ltd. (8572), most recently on 2026-05-08. 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 Acom Co., Ltd. have?

Acom Co., Ltd. has 7 buy-side and 1 sell-side disclosures on record, covering ¥5.5B ($35.6M) in total reported value, spanning 2024-07-23 to 2026-05-08.

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.

Acom Co., Ltd. 8572

Company

アコム株式会社Acom Co., Ltd.

Investors

Buys

Total Value

¥5.5B ($35.6M)

Avg Return

-4.00%

Last Filing

2026-05-08

Acom Co., Ltd. (8572) has 7 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥5.5B ($35.6M) in reported transaction value. The earliest filing StockDrifts holds for Acom Co., Ltd. is dated 2024-07-23; the most recent is 2026-05-08. Across these filings the average return since disclosure is -4.00%, 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
2026-05-08	BUY	Market Buy	マルイト株式会社	strategic	125.5M	¥494.1	-1.6%	¥1.2B ($7.5M)
2026-05-08	BUY	Market Buy	マルイト株式会社	strategic	125.5M	¥494.1	-1.6%	¥1.2B ($7.5M)
2026-05-08	BUY	Market Buy	株式会社丸糸商店	strategic	38.7M	¥494.1	-1.6%	¥310M ($2.0M)
2026-05-08	BUY	unknown	小村太一	strategic	8.1M	¥494.1	-	¥4.0B ($25.7M)
2026-05-08	BUY	Market Buy	三菱UFJ信託銀行株式会社	passive	46.1M	¥494.1	-1.6%	¥542M ($3.5M)
2026-05-08	BUY	Market Buy	三菱UFJアセットマネジメント株式会社	passive	2.9M	¥494.1	-1.6%	¥155M ($999K)
2026-05-08	BUY	unknown	株式会社三菱UFJフィナンシャル・グループ	corporate	588.7M	¥494.1	-	-
2026-05-08	BUY	Market Buy	株式会社丸糸商店	strategic	38.7M	¥494.1	-1.6%	¥310M ($2.0M)
2026-05-08	BUY	unknown	小村太一	strategic	8.1M	¥494.1	-	¥4.0B ($25.7M)
2024-07-23	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	activist	45.0M	¥432.6	-12.4%	¥2.4B ($15.7M)
2024-07-23	BUY	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	2.7M	¥432.6	-	¥1.2B ($7.6M)
2024-07-23	BUY	Market Buy	株式会社三菱UFJフィナンシャル・グループ Mitsubishi UFJ Financial Group	other	588.7M	¥432.6	+12.4%	¥4.7B ($30.6M)

Frequently asked questions

Who has been buying Acom Co., Ltd. stock?: 6 distinct investors have filed 7 disclosed large-shareholding filings in Acom Co., Ltd. (8572), most recently on 2026-05-08. 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 Acom Co., Ltd. have?: Acom Co., Ltd. has 7 buy-side and 1 sell-side disclosures on record, covering ¥5.5B ($35.6M) in total reported value, spanning 2024-07-23 to 2026-05-08.
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.