Who has been buying Aisan Industry Co., Ltd. stock?

5 distinct investors have filed 5 disclosed large-shareholding filings in Aisan Industry Co., Ltd. (7283), most recently on 2025-11-21. 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 Aisan Industry Co., Ltd. have?

Aisan Industry Co., Ltd. has 5 buy-side and 10 sell-side disclosures on record, covering ¥19.4B ($125.3M) in total reported value, spanning 2022-01-07 to 2025-11-21.

Where does StockDrifts get Aisan Industry 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.

Aisan Industry Co., Ltd. 7283

Company

愛三工業株式会社Aisan Industry Co., Ltd.

Investors

Buys

Total Value

¥19.4B ($125.3M)

Avg Return

+47.24%

Last Filing

2025-11-21

Aisan Industry Co., Ltd. (7283) has 5 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥19.4B ($125.3M) in reported transaction value. The earliest filing StockDrifts holds for Aisan Industry Co., Ltd. is dated 2022-01-07; the most recent is 2025-11-21. 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 +47.24%, 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
2026-07-23	BUY	unknown	株式会社三井住友銀行	other	780.2K	¥2,293	+1.2%	¥1.8B ($11.5M)
2026-07-23	BUY	unknown	SMBC日興証券株式会社	other	152.3K	¥2,293	+1.2%	¥349M ($2.3M)
2026-07-23	BUY	Market Buy	三井住友DSアセットマネジメント株式会社	passive	2.5M	¥2,293	+1.2%	¥5.7B ($37.1M)
2025-11-21	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	780.2K	¥2,129	+9.2%	¥189M ($1.2M)
2025-11-21	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	2.2M	¥2,129	+9.2%	¥1.2B ($7.7M)
2025-08-22	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	866.9K	¥1,991	+2.9%	¥619M ($4.0M)
2025-08-22	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	2.8M	¥1,991	+2.9%	¥770M ($5.0M)
2025-04-21	SELL	negotiated	株式会社デンソー DENSO CORPORATION	strategic	0	¥1,959	+1.3%	¥10.8B ($69.6M)
2025-04-01	SELL	negotiated	株式会社デンソー DENSO CORPORATION	strategic	5.5M	¥2,083	+7.2%	¥1.7B ($10.7M)
2025-03-24	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.2M	¥2,143	-9.8%	¥2.5B ($16.3M)
2025-03-24	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	3.2M	¥2,143	-9.8%	¥1.7B ($11.2M)
2024-11-08	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.2M	¥1,393	-38.8%	¥433M ($2.8M)
2024-11-08	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	2.4M	¥1,393	+38.8%	¥945M ($6.1M)
2024-07-05	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.5M	¥1,430	+35.2%	¥2.1B ($13.7M)
2024-07-05	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.7M	¥1,430	+35.2%	¥2.4B ($15.6M)
2023-09-25	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.6M	¥1,407	-37.4%	¥9M ($57K)
2023-09-25	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.3M	¥1,407	-37.4%	¥1.1B ($7.2M)
2022-01-07	SELL	negotiated	ダイハツ工業株式会社 Daihatsu Motor Co.,Ltd.	strategic	140.7K	¥816	-136.9%	¥2.1B ($13.3M)
2022-01-07	BUY	negotiated	トヨタ自動車株式会社 TOYOTA MOTOR CORPORATION	strategic	18.1M	¥816	+136.9%	¥14.6B ($94.2M)

Frequently asked questions

Who has been buying Aisan Industry Co., Ltd. stock?: 5 distinct investors have filed 5 disclosed large-shareholding filings in Aisan Industry Co., Ltd. (7283), most recently on 2025-11-21. 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 Aisan Industry Co., Ltd. have?: Aisan Industry Co., Ltd. has 5 buy-side and 10 sell-side disclosures on record, covering ¥19.4B ($125.3M) in total reported value, spanning 2022-01-07 to 2025-11-21.
Where does StockDrifts get Aisan Industry 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 Aisan Industry Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.