Who has been buying Nakayo, Inc. stock?

8 distinct investors have filed 17 disclosed large-shareholding filings in Nakayo, Inc. (6715), most recently on 2025-04-09. 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 Nakayo, Inc. have?

Nakayo, Inc. has 17 buy-side and 8 sell-side disclosures on record, covering ¥10.8B ($69.7M) in total reported value, spanning 2021-08-25 to 2025-04-09.

Where does StockDrifts get Nakayo, Inc. 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.

Nakayo, Inc. 6715

Company

株式会社ナカヨNakayo, Inc.

Investors

Buys

Total Value

¥10.8B ($69.7M)

Avg Return

+90.24%

Last Filing

2025-04-09

Nakayo, Inc. (6715) has 17 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥10.8B ($69.7M) in reported transaction value. The earliest filing StockDrifts holds for Nakayo, Inc. is dated 2021-08-25; the most recent is 2025-04-09. 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 +90.24%, 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
2025-04-09	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	unknown	0	¥2,536	-0.1%	¥709M ($4.6M)
2025-04-09	SELL	unknown	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	unknown	0	¥2,536	-0.1%	¥364M ($2.3M)
2025-04-09	SELL	unknown	株式会社UH Partners 2 UH Partners 2, Inc.	unknown	0	¥2,536	-0.1%	¥846M ($5.5M)
2025-04-09	SELL	unknown	光通信株式会社 Hikari Tsushin K.K.	unknown	0	¥2,536	-0.1%	¥840M ($5.4M)
2025-04-09	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	unknown	0	¥2,536	-0.1%	¥508M ($3.3M)
2025-04-03	BUY	acquisition	あいホールディングス株式会社 Ai Holdings Corporation	activist	3.8M	¥2,535	+0.2%	¥9.5B ($61.1M)
2025-03-06	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	279.5K	¥2,540	-0.0%	¥710M ($4.6M)
2025-03-06	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	200.3K	¥2,540	-0.0%	¥509M ($3.3M)
2025-02-21	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	143.6K	¥2,540	-0.0%	¥35M ($228K)
2025-02-21	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	333.7K	¥2,540	-0.0%	¥848M ($5.5M)
2025-02-21	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥2,540	-0.0%	¥842M ($5.4M)
2024-12-23	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	129.7K	¥1,132	+124.3%	¥56M ($364K)
2024-12-23	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	333.7K	¥1,132	+124.3%	¥378M ($2.4M)
2024-12-23	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,132	+124.3%	¥375M ($2.4M)
2024-11-08	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.4K	¥1,117	-127.3%	¥56M ($359K)
2024-11-08	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	200.3K	¥1,117	+127.3%	¥224M ($1.4M)
2024-10-09	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,153	+120.2%	¥382M ($2.5M)
2024-10-09	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	79.8K	¥1,153	+120.2%	¥56M ($360K)
2024-10-09	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	333.7K	¥1,153	+120.2%	¥385M ($2.5M)
2024-07-29	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	31.2K	¥1,272	+99.6%	¥40M ($256K)
2024-07-29	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	333.7K	¥1,272	+99.6%	¥30M ($193K)
2024-07-29	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,272	+99.6%	¥422M ($2.7M)
2024-04-02	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	310.3K	¥1,142	+122.3%	¥58M ($374K)
2024-04-02	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,142	+122.3%	¥379M ($2.4M)
2024-01-05	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	259.5K	¥1,197	+112.1%	¥57M ($370K)
2024-01-05	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,197	+112.1%	¥397M ($2.6M)
2023-10-06	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	211.3K	¥1,251	+103.0%	¥61M ($395K)
2023-10-06	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,251	+103.0%	¥415M ($2.7M)
2023-07-04	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	162.5K	¥1,189	+113.5%	¥58M ($371K)
2023-07-04	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,189	+113.5%	¥394M ($2.5M)
2023-01-25	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	114.0K	¥1,070	+137.3%	¥51M ($331K)
2023-01-25	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,070	+137.3%	¥355M ($2.3M)
2022-11-07	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	66.0K	¥1,085	+134.0%	¥65M ($420K)
2022-11-07	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,085	+134.0%	¥360M ($2.3M)
2022-09-21	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	6.4K	¥1,061	+139.3%	¥7M ($44K)
2022-09-21	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	331.5K	¥1,061	+139.3%	¥46M ($295K)
2022-09-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	52.3K	¥1,075	-136.2%	¥54M ($346K)
2022-09-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	200.3K	¥1,075	+136.2%	¥215M ($1.4M)
2022-07-06	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	288.1K	¥1,130	+124.7%	¥55M ($353K)
2022-03-03	BUY	Market Buy	あいホールディングス株式会社 Ai Holdings Corporation	passive	375.2K	¥1,139	+122.9%	¥427M ($2.8M)
2022-03-03	SELL	negotiated	株式会社ミライト MIRAIT Corporation	strategic	0	¥1,139	-122.9%	¥344M ($2.2M)
2021-08-25	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	239.8K	¥1,405	+80.7%	¥337M ($2.2M)

Frequently asked questions

Who has been buying Nakayo, Inc. stock?: 8 distinct investors have filed 17 disclosed large-shareholding filings in Nakayo, Inc. (6715), most recently on 2025-04-09. 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 Nakayo, Inc. have?: Nakayo, Inc. has 17 buy-side and 8 sell-side disclosures on record, covering ¥10.8B ($69.7M) in total reported value, spanning 2021-08-25 to 2025-04-09.
Where does StockDrifts get Nakayo, Inc. 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 Nakayo, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.