Who has been buying TOA Corporation stock?

11 distinct investors have filed 6 disclosed large-shareholding filings in TOA Corporation (6809), most recently on 2025-12-22. 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 TOA Corporation have?

TOA Corporation has 6 buy-side and 8 sell-side disclosures on record, covering ¥1.2B ($7.8M) in total reported value, spanning 2022-05-13 to 2025-12-22.

Where does StockDrifts get TOA 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.

TOA Corporation 6809

Company

TOA株式会社TOA Corporation

Investors

Buys

Total Value

¥1.2B ($7.8M)

Avg Return

+34.29%

Last Filing

2025-12-22

TOA Corporation (6809) has 6 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥1.2B ($7.8M) in reported transaction value. The earliest filing StockDrifts holds for TOA Corporation is dated 2022-05-13; the most recent is 2025-12-22. 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 +34.29%, 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
2025-12-22	BUY	Market Buy	SMBC日興証券株式会社	other	203.1K	¥1,607	+10.1%	¥359M ($2.3M)
2025-12-22	BUY	Market Buy	株式会社三井住友銀行	other	1.2M	¥1,607	+10.1%	¥2.1B ($13.6M)
2025-12-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社	passive	416.3K	¥1,607	+10.1%	¥736M ($4.8M)
2025-09-16	BUY	Market Buy	TOA 取引先持株会理事長富永浩司 KOUJI TOMINAGA	strategic	2.7M	¥1,195	+48.0%	¥412M ($2.7M)
2025-05-08	BUY	negotiated	井谷恵子 Keiko Itani	activist	150.0K	¥1,003	+76.4%	¥150M ($971K)
2025-05-08	BUY	negotiated	井谷恵子 Keiko Itani	activist	150.0K	¥1,003	+76.4%	¥150M ($971K)
2025-05-08	SELL	negotiated	井谷憲次 Kenji Itani	activist	1.4M	¥1,003	-76.4%	¥414M ($2.7M)
2025-05-08	SELL	negotiated	井谷憲次 Kenji Itani	activist	1.4M	¥1,003	-76.4%	¥414M ($2.7M)
2024-07-29	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	142.8K	¥1,075	+64.6%	¥73M ($474K)
2024-07-29	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	596.5K	¥1,075	-64.6%	¥99M ($639K)
2024-07-29	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.6M	¥1,075	-64.6%	¥59M ($379K)
2024-02-22	SELL	unknown	ダルトン・インベストメンツ・インク(Dalton Investments, Inc.) Dalton Investments, Inc.	other	0	¥1,148	-54.1%	¥2.4B ($15.8M)
2024-02-08	BUY	negotiated	ダルトン・インベストメンツ・インク(Dalton Investments, Inc.) Dalton Investments, Inc.	activist	2.1M	¥1,098	+61.1%	¥2.3B ($15.1M)
2024-01-11	BUY	negotiated	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	2.1M	¥1,110	+59.4%	¥2.4B ($15.2M)
2024-01-11	SELL	negotiated	ダルトン・インベストメンツ・エルエルシー Dalton Investments LLC	activist	0	¥1,110	-59.4%	¥2.3B ($15.0M)
2023-10-04	BUY	Market Buy	ダルトン・インベストメンツ・エルエルシー(Dalton Investments LLC) Dalton Investments LLC	activist	2.1M	¥1,086	+62.9%	¥371M ($2.4M)
2022-07-08	SELL	negotiated	ダルトン・インベストメンツ・エルエルシー(Dalton Investments LLC) Dalton Investments LLC	activist	1.8M	¥777	-127.7%	¥274M ($1.8M)
2022-05-13	SELL	negotiated	ダルトン・インベストメンツ・エルエルシー(Dalton Investments LLC) Dalton Investments LLC	activist	2.1M	¥794	-122.8%	¥296M ($1.9M)

Frequently asked questions

Who has been buying TOA Corporation stock?: 11 distinct investors have filed 6 disclosed large-shareholding filings in TOA Corporation (6809), most recently on 2025-12-22. 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 TOA Corporation have?: TOA Corporation has 6 buy-side and 8 sell-side disclosures on record, covering ¥1.2B ($7.8M) in total reported value, spanning 2022-05-13 to 2025-12-22.
Where does StockDrifts get TOA 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 TOA Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.