Who has been buying Okada Aiyon Corporation stock?

10 distinct investors have filed 21 disclosed large-shareholding filings in Okada Aiyon Corporation (6294), most recently on 2025-12-17. 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 Okada Aiyon Corporation have?

Okada Aiyon Corporation has 21 buy-side and 15 sell-side disclosures on record, covering ¥6.1B ($39.3M) in total reported value, spanning 2021-05-12 to 2025-12-17.

Where does StockDrifts get Okada Aiyon 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.

Okada Aiyon Corporation 6294

Company

オカダアイヨン株式会社Okada Aiyon Corporation

Investors

Buys

Total Value

¥6.1B ($39.3M)

Avg Return

+34.48%

Last Filing

2025-12-17

Okada Aiyon Corporation (6294) has 21 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥6.1B ($39.3M) in reported transaction value. The earliest filing StockDrifts holds for Okada Aiyon Corporation is dated 2021-05-12; the most recent is 2025-12-17. 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 +34.48%, 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
2026-08-06	BUY	Market Buy	株式会社SBI証券	other	115.8K	¥2,015	-3.5%	¥34M ($218K)
2026-08-06	SELL	Market Buy	SBIアセットマネジメント株式会社	passive	192.8K	¥2,015	+3.5%	¥299M ($1.9M)
2025-12-17	BUY	Market Buy	エーピーアイピーインク (APIP, Inc.) APIP, Inc.	passive	1.8M	¥2,193	+0.9%	¥4.0B ($26.0M)
2025-10-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	242.9K	¥2,026	+9.2%	¥492M ($3.2M)
2025-10-07	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	154.8K	¥2,026	-9.2%	¥219M ($1.4M)
2025-03-24	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	242.9K	¥2,050	+7.9%	¥498M ($3.2M)
2025-03-24	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	263.2K	¥2,050	-7.9%	¥186M ($1.2M)
2025-02-21	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	99.2K	¥2,133	+3.7%	¥212M ($1.4M)
2025-02-21	BUY	Market Buy	SBIアセットマネジメント株式会社 SBI Asset Management Co., Ltd.	passive	341.1K	¥2,133	+3.7%	¥728M ($4.7M)
2024-08-22	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	242.9K	¥2,129	+3.9%	¥517M ($3.3M)
2024-08-22	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	354.0K	¥2,129	+3.9%	¥219M ($1.4M)
2024-06-21	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	2.3K	¥2,438	-9.3%	¥513M ($3.3M)
2024-06-21	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	242.9K	¥2,438	-9.3%	¥592M ($3.8M)
2024-06-21	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	250.4K	¥2,438	+9.3%	¥180M ($1.2M)
2023-10-20	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	41.4K	¥1,936	-14.3%	¥3M ($21K)
2023-10-20	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	242.9K	¥1,936	+14.3%	¥470M ($3.0M)
2023-10-20	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	324.6K	¥1,936	-14.3%	¥164M ($1.1M)
2023-04-21	SELL	unknown	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	408.5K	¥1,749	-26.5%	¥16M ($104K)
2023-04-21	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	242.9K	¥1,749	+26.5%	¥425M ($2.7M)
2023-04-21	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	42.9K	¥1,749	-26.5%	¥130M ($841K)
2023-04-17	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	30.1K	¥1,756	+26.0%	¥53M ($341K)
2023-04-17	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	3.0K	¥1,756	-26.0%	¥216M ($1.4M)
2023-04-17	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	67.7K	¥1,756	-26.0%	¥13M ($85K)
2023-04-17	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	220.0K	¥1,756	+26.0%	¥386M ($2.5M)
2023-03-20	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	126.2K	¥1,682	+31.5%	¥212M ($1.4M)
2023-03-20	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	30.1K	¥1,682	+31.5%	¥51M ($327K)
2023-03-20	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	220.0K	¥1,682	+31.5%	¥370M ($2.4M)
2023-03-20	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	75.4K	¥1,682	+31.5%	¥127M ($818K)
2022-12-07	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	418.2K	¥1,496	+47.9%	¥51M ($332K)
2022-12-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	242.9K	¥1,496	+47.9%	¥363M ($2.3M)
2022-12-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	117.4K	¥1,496	+47.9%	¥74M ($477K)
2022-09-20	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	3.4K	¥1,446	+53.0%	¥361M ($2.3M)
2022-09-20	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	41.3K	¥1,446	+53.0%	¥23M ($149K)
2022-09-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	88.9K	¥1,446	-53.0%	¥2M ($16K)
2022-09-20	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	220.0K	¥1,446	+53.0%	¥318M ($2.1M)
2022-05-30	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	85.2K	¥1,533	+44.3%	¥131M ($843K)
2022-05-30	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	25.2K	¥1,533	+44.3%	¥39M ($249K)
2022-05-30	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	90.6K	¥1,533	+44.3%	¥139M ($896K)
2022-05-30	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	220.0K	¥1,533	+44.3%	¥337M ($2.2M)
2022-04-18	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	77.0K	¥1,499	-47.6%	¥176M ($1.1M)
2022-04-18	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	24.5K	¥1,499	+47.6%	¥37M ($237K)
2022-04-18	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	90.9K	¥1,499	-47.6%	¥3M ($16K)
2022-04-18	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	220.0K	¥1,499	+47.6%	¥330M ($2.1M)
2022-03-22	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	220.0K	¥1,444	+53.2%	¥318M ($2.0M)
2022-03-22	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	194.1K	¥1,444	+53.2%	¥162M ($1.0M)
2022-03-22	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	24.0K	¥1,444	+53.2%	¥6M ($39K)
2022-03-22	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	92.2K	¥1,444	-53.2%	¥7M ($47K)
2021-12-07	BUY	unknown	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	383.8K	¥1,470	+50.5%	¥54M ($350K)
2021-12-07	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	242.9K	¥1,470	+50.5%	¥357M ($2.3M)
2021-12-07	BUY	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	68.0K	¥1,470	+50.5%	¥100M ($645K)

Showing the 50 most recent of 55 filings.

Frequently asked questions

Who has been buying Okada Aiyon Corporation stock?: 10 distinct investors have filed 21 disclosed large-shareholding filings in Okada Aiyon Corporation (6294), most recently on 2025-12-17. 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 Okada Aiyon Corporation have?: Okada Aiyon Corporation has 21 buy-side and 15 sell-side disclosures on record, covering ¥6.1B ($39.3M) in total reported value, spanning 2021-05-12 to 2025-12-17.
Where does StockDrifts get Okada Aiyon 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 Okada Aiyon Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.