Who has been buying Aiful Corporation stock?

11 distinct investors have filed 15 disclosed large-shareholding filings in Aiful Corporation (8515), most recently on 2025-06-06. 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 Aiful Corporation have?

Aiful Corporation has 15 buy-side and 18 sell-side disclosures on record, covering ¥95.9B ($618.4M) in total reported value, spanning 2022-03-16 to 2025-06-06.

Where does StockDrifts get Aiful Corporation 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.

Aiful Corporation 8515

Company

アイフル株式会社Aiful Corporation

Investors

Buys

Total Value

¥95.9B ($618.4M)

Avg Return

+23.25%

Last Filing

2025-06-06

Aiful Corporation (8515) has 15 disclosed large-shareholding filings and 18 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥95.9B ($618.4M) in reported transaction value. The earliest filing StockDrifts holds for Aiful Corporation is dated 2022-03-16; the most recent is 2025-06-06. 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 +23.25%, 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
2025-06-06	SELL	Market Buy	ティー・ロウ・プライス・インターナショナル・リミテッド T. Rowe Price International Ltd.	passive	25.7K	¥412	-9.9%	¥2.0B ($12.9M)
2025-06-06	SELL	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	23.2M	¥412	-9.9%	¥2.1B ($13.8M)
2024-11-22	BUY	Market Buy	ティー・ロウ・プライス・インターナショナル・リミテッド T. Rowe Price International Ltd.	passive	93.0K	¥327	+38.5%	¥3.0B ($19.4M)
2024-11-22	SELL	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	28.4M	¥327	-38.5%	¥1.5B ($9.4M)
2024-09-24	SELL	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	9.8M	¥320	-41.6%	¥16M ($100K)
2024-09-24	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	43.7K	¥320	-41.6%	¥326M ($2.1M)
2024-09-24	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	13.6M	¥320	+41.6%	¥1.1B ($7.3M)
2024-07-18	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	9.8M	¥395	+14.7%	¥38M ($247K)
2024-07-18	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	5.9M	¥395	+14.7%	¥2.1B ($13.3M)
2024-07-18	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	10.1M	¥395	-14.7%	¥1.8B ($11.9M)
2024-07-04	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	9.7M	¥391	+15.9%	¥19M ($122K)
2024-07-04	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	640.4K	¥391	-15.9%	¥720M ($4.6M)
2024-07-04	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	14.7M	¥391	+15.9%	¥966M ($6.2M)
2024-06-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	9.7M	¥388	+16.8%	¥3.7B ($24.2M)
2024-06-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	2.5M	¥388	+16.8%	¥961M ($6.2M)
2024-06-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	12.3M	¥388	+16.8%	¥4.8B ($30.7M)
2024-02-07	BUY	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	32.9M	¥384	+18.0%	¥12.5B ($80.4M)
2024-02-07	BUY	Market Buy	ティー・ロウ・プライス・インターナショナル・リミテッド T. Rowe Price International Ltd.	passive	494.9K	¥384	+18.0%	¥190M ($1.2M)
2023-10-06	BUY	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	38.8M	¥366	+23.8%	¥2.3B ($14.5M)
2023-08-22	BUY	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	32.7M	¥333	+36.0%	¥2.6B ($16.7M)
2023-06-22	BUY	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	24.9M	¥345	+31.3%	¥8.6B ($55.5M)
2023-04-06	BUY	negotiated	株式会社丸高 Marutaka Co., Ltd.	unknown	24.5M	¥365	+24.1%	¥9.0B ($57.8M)
2023-04-06	BUY	negotiated	福田光秀 Mitsuhide Fukuda	unknown	62.2M	¥365	+24.1%	¥22.7B ($146.4M)
2023-04-06	BUY	negotiated	福田有希子 Yukiko Fukuda	unknown	393.6K	¥365	+24.1%	¥144M ($927K)
2023-04-06	BUY	negotiated	福田吉孝 Yoshitaka Fukuda	unknown	3.2M	¥365	+24.1%	¥1.2B ($7.6M)
2023-04-06	SELL	negotiated	株式会社 AMG AMG CO.,LTD.	activist	0	¥365	-24.1%	¥34.6B ($223.2M)
2023-04-06	BUY	negotiated	株式会社AMG AMG CO.,LTD.	activist	94.8M	¥365	+24.1%	¥34.6B ($223.2M)
2023-04-06	BUY	negotiated	株式会社丸高 Marutaka Co., Ltd.	unknown	24.5M	¥365	+24.1%	¥9.0B ($57.8M)
2023-04-06	BUY	negotiated	福田光秀 Mitsuhide Fukuda	unknown	62.2M	¥365	+24.1%	¥22.7B ($146.4M)
2023-04-06	BUY	negotiated	福田有希子 Yukiko Fukuda	unknown	393.6K	¥365	+24.1%	¥144M ($927K)
2023-04-06	BUY	negotiated	福田吉孝 Yoshitaka Fukuda	unknown	3.2M	¥365	+24.1%	¥1.2B ($7.6M)
2023-04-06	BUY	negotiated	株式会社AMG AMG CO.,LTD.	activist	94.8M	¥365	+24.1%	¥34.6B ($223.2M)
2023-04-06	SELL	negotiated	株式会社 AMG AMG CO.,LTD.	activist	0	¥365	-24.1%	¥34.6B ($223.2M)
2022-12-28	BUY	negotiated	株式会社丸高 Marutaka Co., Ltd.	unknown	24.5M	¥394	+15.0%	¥9.7B ($62.4M)
2022-12-28	BUY	negotiated	福田有希子 Yukiko Fukuda	unknown	393.6K	¥394	+15.0%	¥155M ($1.0M)
2022-12-28	BUY	negotiated	福田吉孝 Yoshitaka Fukuda	unknown	3.2M	¥394	+15.0%	¥1.3B ($8.2M)
2022-12-28	BUY	negotiated	福田光秀 Mitsuhide Fukuda	strategic	62.2M	¥394	+15.0%	¥24.5B ($158.0M)
2022-12-28	BUY	negotiated	株式会社AMG AMG CO.,LTD.	activist	94.8M	¥394	+15.0%	¥37.4B ($241.0M)
2022-03-16	SELL	negotiated	株式会社AMG AMG CO.,LTD.	activist	94.8M	¥327	-38.5%	¥79M ($511K)
2022-03-16	SELL	negotiated	株式会社AMG AMG CO.,LTD.	activist	94.8M	¥327	-38.5%	¥79M ($511K)
2022-03-16	BUY	negotiated	福田有希子 Yukiko Fukuda	unknown	393.6K	¥327	+38.5%	¥129M ($830K)
2022-03-16	BUY	negotiated	福田吉孝 Yoshitaka Fukuda	unknown	3.2M	¥327	+38.5%	¥1.0B ($6.8M)
2022-03-16	SELL	negotiated	福田光秀 Mitsuhide Fukuda	strategic	62.2M	¥327	-38.5%	¥32M ($204K)
2022-03-16	SELL	negotiated	株式会社丸高 Marutaka Co., Ltd.	activist	24.5M	¥327	-38.5%	¥32M ($204K)
2022-03-16	BUY	negotiated	福田有希子 Yukiko Fukuda	unknown	393.6K	¥327	+38.5%	¥129M ($830K)
2022-03-16	BUY	negotiated	福田吉孝 Yoshitaka Fukuda	unknown	3.2M	¥327	+38.5%	¥1.0B ($6.8M)
2022-03-16	SELL	negotiated	福田光秀 Mitsuhide Fukuda	strategic	62.2M	¥327	-38.5%	¥32M ($204K)
2022-03-16	SELL	negotiated	株式会社丸高 Marutaka Co., Ltd.	activist	24.5M	¥327	-38.5%	¥32M ($204K)
2022-03-16	SELL	negotiated	株式会社AMG AMG CO.,LTD.	activist	94.8M	¥327	-38.5%	¥79M ($511K)
2022-03-16	BUY	negotiated	福田吉孝 Yoshitaka Fukuda	unknown	3.2M	¥327	+38.5%	¥1.0B ($6.8M)

Showing the 50 most recent of 53 filings.

Frequently asked questions

Who has been buying Aiful Corporation stock?: 11 distinct investors have filed 15 disclosed large-shareholding filings in Aiful Corporation (8515), most recently on 2025-06-06. 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 Aiful Corporation have?: Aiful Corporation has 15 buy-side and 18 sell-side disclosures on record, covering ¥95.9B ($618.4M) in total reported value, spanning 2022-03-16 to 2025-06-06.
Where does StockDrifts get Aiful Corporation 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 Aiful Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.