Who has been buying Daiho Corporation stock?

13 distinct investors have filed 39 disclosed large-shareholding filings in Daiho Corporation (1822), most recently on 2026-03-10. 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 Daiho Corporation have?

Daiho Corporation has 39 buy-side and 20 sell-side disclosures on record, covering ¥6.1B ($39.4M) in total reported value, spanning 2021-03-18 to 2026-03-10.

Where does StockDrifts get Daiho 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.

Daiho Corporation 1822

Company

大豊建設株式会社Daiho Corporation

Investors

Buys

Total Value

¥6.1B ($39.4M)

Avg Return

-5.60%

Last Filing

2026-03-10

Daiho Corporation (1822) has 39 disclosed large-shareholding filings and 20 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥6.1B ($39.4M) in reported transaction value. The earliest filing StockDrifts holds for Daiho Corporation is dated 2021-03-18; the most recent is 2026-03-10. 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 -5.60%, 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
2026-05-28	BUY	unknown	株式会社Mホールディングス	activist	280.8K	¥745	+0.9%	¥209M ($1.3M)
2026-05-28	SELL	unknown	株式会社ATRA	activist	7.5M	¥745	-0.9%	¥3.4B ($22.0M)
2026-05-28	BUY	unknown	株式会社南青山不動産	activist	155	¥745	+0.9%	¥115K ($745)
2026-03-10	SELL	unknown	株式会社ATRA	activist	12.1M	¥852	+11.4%	¥9.2B ($59.1M)
2026-03-10	BUY	unknown	株式会社南青山不動産	activist	155	¥852	+11.4%	¥117K ($755)
2026-02-25	SELL	unknown	野村絢	unknown	0	¥853	+11.5%	-
2026-02-25	SELL	unknown	株式会社ATRA	activist	13.1M	¥853	+11.5%	¥9.9B ($63.8M)
2026-02-25	BUY	unknown	株式会社南青山不動産	activist	155	¥853	+11.5%	¥117K ($755)
2025-11-21	BUY	unknown	株式会社ATRA ATRA Co., Ltd.	activist	13.2M	¥768	-1.7%	¥10.1B ($65.4M)
2025-11-21	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	890.0K	¥768	-1.7%	¥684M ($4.4M)
2025-11-21	SELL	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	unknown	0	¥768	+1.7%	¥6.0B ($39.0M)
2025-11-21	SELL	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	155	¥768	+1.7%	¥5.5B ($35.2M)
2025-10-06	SELL	unknown	野村絢 Aya Nomura (Murakami family)	unknown	0	¥810	+6.8%	¥278M ($1.8M)
2025-10-06	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	7.9M	¥810	-6.8%	¥278M ($1.8M)
2025-10-06	SELL	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	7.1M	¥810	+6.8%	¥886M ($5.7M)
2024-12-19	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	68.9K	¥668	+13.0%	¥46M ($297K)
2024-12-19	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.5M	¥668	+13.0%	¥121M ($779K)
2024-12-19	BUY	Market Buy	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥668	+13.0%	¥1.1B ($7.1M)
2024-09-24	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	68.9K	¥703	+7.4%	¥48M ($312K)
2024-09-24	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.3M	¥703	+7.4%	¥86M ($558K)
2024-09-24	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥703	+7.4%	¥1.2B ($7.4M)
2024-07-11	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.2M	¥700	+7.9%	¥842M ($5.4M)
2024-07-11	SELL	unknown	野村絢 Aya Nomura (Murakami family)	unknown	0	¥700	-7.9%	¥713M ($4.6M)
2024-07-11	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥700	+7.9%	¥1.1B ($7.4M)
2024-05-27	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥684	+10.4%	¥68K ($441)
2024-05-27	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	1.0M	¥684	+10.4%	¥129M ($830K)
2024-05-27	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥684	+10.4%	¥1.1B ($7.2M)
2024-04-02	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	829.5K	¥678	+11.4%	¥124M ($799K)
2024-04-02	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥678	+11.4%	¥68K ($437)
2024-04-02	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥678	+11.4%	¥1.1B ($7.2M)
2024-03-14	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥692	+9.1%	¥69K ($446)
2024-03-14	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	648.2K	¥692	+9.1%	¥130M ($840K)
2024-03-14	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥692	+9.1%	¥1.1B ($7.3M)
2024-02-28	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥640	+18.0%	¥64K ($413)
2024-02-28	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	459.0K	¥640	+18.0%	¥130M ($836K)
2024-02-28	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥640	+18.0%	¥1.0B ($6.8M)
2024-01-26	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	257.3K	¥752	+0.4%	¥137M ($886K)
2024-01-26	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥752	+0.4%	¥1.2B ($8.0M)
2023-12-05	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	74.6K	¥730	+3.4%	¥54M ($351K)
2023-12-05	BUY	Market Buy	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.6M	¥730	+3.4%	¥79M ($511K)
2023-11-21	BUY	unknown	株式会社南青山不動産 Minami Aoyama Real Estate Co., Ltd.	activist	1.5M	¥695	+8.6%	¥1.1B ($6.9M)
2023-11-21	SELL	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	unknown	0	¥695	-8.6%	¥985M ($6.4M)
2023-09-26	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.4M	¥795	-5.0%	¥104M ($668K)
2023-06-22	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.3M	¥789	-4.3%	¥147M ($948K)
2022-11-08	BUY	Market Buy	株式会社麻生 ASO CORPORATION	activist	8.9M	¥834	-9.5%	¥7.4B ($47.7M)
2022-10-28	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	1.1M	¥830	-9.0%	¥153M ($988K)
2022-09-22	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	915.9K	¥865	-12.7%	¥792M ($5.1M)
2022-09-07	BUY	Market Buy	株式会社麻生 ASO CORPORATION	activist	8.9M	¥806	-6.3%	¥2.3B ($15.2M)
2022-07-26	BUY	Market Buy	株式会社麻生 ASO CORPORATION	activist	8.9M	¥854	-11.6%	¥7.6B ($48.9M)
2022-07-22	SELL	unknown	株式会社エスグラントコーポレーション S-Grant Corporation Co., Ltd.	unknown	0	¥878	+14.0%	¥7M ($45K)

Showing the 50 most recent of 95 filings.

Frequently asked questions

Who has been buying Daiho Corporation stock?: 13 distinct investors have filed 39 disclosed large-shareholding filings in Daiho Corporation (1822), most recently on 2026-03-10. 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 Daiho Corporation have?: Daiho Corporation has 39 buy-side and 20 sell-side disclosures on record, covering ¥6.1B ($39.4M) in total reported value, spanning 2021-03-18 to 2026-03-10.
Where does StockDrifts get Daiho 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 Daiho Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.