Who has been buying Kaname Kogyo Co.,Ltd. stock?

2 distinct investors have filed 10 disclosed large-shareholding filings in Kaname Kogyo Co.,Ltd. (6566), most recently on 2025-11-07. 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 Kaname Kogyo Co.,Ltd. have?

Kaname Kogyo Co.,Ltd. has 10 buy-side and 0 sell-side disclosures on record, covering ¥18.6B ($119.8M) in total reported value, spanning 2021-05-07 to 2025-11-07.

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.

Kaname Kogyo Co.,Ltd. 6566

Company

株式会社要興業Kaname Kogyo Co.,Ltd.

Investors

Buys

Total Value

¥18.6B ($119.8M)

Avg Return

+33.17%

Last Filing

2025-11-07

Kaname Kogyo Co.,Ltd. (6566) has 10 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥18.6B ($119.8M) in reported transaction value. The earliest filing StockDrifts holds for Kaname Kogyo Co.,Ltd. is dated 2021-05-07; the most recent is 2025-11-07. Across these filings the average return since disclosure is +33.17%, 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
2026-09-15	BUY	unknown	大星ビルメンテナンス株式会社	strategic	750.0K	¥1,252	+1.4%	¥939M ($6.1M)
2026-09-15	BUY	unknown	大星ビル管理株式会社	strategic	750.0K	¥1,252	+1.4%	¥939M ($6.1M)
2025-11-07	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	passive	123.7K	¥1,499	-15.3%	¥12.0B ($77.2M)
2025-10-31	BUY	unknown	大栄環境株式会社 Daiei Kankyo Co., Ltd.	strategic	4.4M	¥1,504	-15.6%	¥6.6B ($42.5M)
2025-10-31	BUY	unknown	大栄環境株式会社 Daiei Kankyo Co., Ltd.	strategic	4.4M	¥1,504	-	¥6.6B ($42.5M)
2025-10-17	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	activist	4.4M	¥1,171	+8.4%	¥99M ($636K)
2024-12-26	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	activist	4.3M	¥1,201	+5.7%	¥208M ($1.3M)
2024-11-18	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	activist	4.1M	¥1,160	+9.4%	¥188M ($1.2M)
2024-10-04	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	activist	4.0M	¥1,001	+26.8%	¥160M ($1.0M)
2023-11-22	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	activist	3.8M	¥817	+55.3%	¥136M ($878K)
2022-03-01	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	activist	3.6M	¥862	+47.2%	¥140M ($900K)
2021-09-22	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	activist	3.5M	¥901	+40.8%	¥150M ($969K)
2021-05-07	BUY	Market Buy	シンフォニー・フィナンシャル・パートナーズ(シンガポール)ピーティーイー・リミテッド (Symphony Financial Partners (Singapore) Pte. Ltd.) Symphony Financial Partners (Singapore) Pte. Ltd.	activist	3.3M	¥940	+35.0%	¥151M ($972K)

Frequently asked questions

Who has been buying Kaname Kogyo Co.,Ltd. stock?: 2 distinct investors have filed 10 disclosed large-shareholding filings in Kaname Kogyo Co.,Ltd. (6566), most recently on 2025-11-07. 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 Kaname Kogyo Co.,Ltd. have?: Kaname Kogyo Co.,Ltd. has 10 buy-side and 0 sell-side disclosures on record, covering ¥18.6B ($119.8M) in total reported value, spanning 2021-05-07 to 2025-11-07.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.