Who has been buying TOP CULTURE Co.,Ltd. stock?

8 distinct investors have filed 5 disclosed large-shareholding filings in TOP CULTURE Co.,Ltd. (7640), most recently on 2026-05-13. 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 TOP CULTURE Co.,Ltd. have?

TOP CULTURE Co.,Ltd. has 5 buy-side and 7 sell-side disclosures on record, covering ¥2.3B ($14.6M) in total reported value, spanning 2021-03-31 to 2026-05-13.

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.

TOP CULTURE Co.,Ltd. 7640

Company

株式会社トップカルチャーTOP CULTURE Co.,Ltd.

Investors

Buys

Total Value

¥2.3B ($14.6M)

Avg Return

-8.47%

Last Filing

2026-05-13

TOP CULTURE Co.,Ltd. (7640) has 5 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥2.3B ($14.6M) in reported transaction value. The earliest filing StockDrifts holds for TOP CULTURE Co.,Ltd. is dated 2021-03-31; the most recent is 2026-05-13. Across these filings the average return since disclosure is -8.47%, 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
2026-09-07	SELL	unknown	株式会社DaI	activist	1.8M	¥198	+3.5%	¥641M ($4.1M)
2026-09-07	BUY	Market Buy	清水大輔	activist	297.0K	¥198	-3.5%	¥12M ($76K)
2026-09-07	BUY	Market Buy	清水弘子	activist	31.1K	¥198	-3.5%	¥1M ($7K)
2026-09-07	BUY	Market Buy	株式会社ヒーズ	activist	2.6M	¥198	-3.5%	¥104M ($671K)
2026-09-07	BUY	Market Buy	清水秀雄	activist	723.7K	¥198	-3.5%	¥28M ($184K)
2026-09-03	SELL	unknown	株式会社日本政策投資銀行 Development Bank of Japan Inc.	unknown	0	¥194	+1.6%	¥205M ($1.3M)
2026-05-13	SELL	subscription	清水秀雄	activist	723.7K	¥186	-2.7%	¥8M ($49K)
2026-05-13	SELL	unknown	株式会社ヒーズ	activist	2.6M	¥186	-2.7%	¥136M ($881K)
2026-05-13	SELL	unknown	清水弘子	activist	31.1K	¥186	-2.7%	¥2M ($10K)
2026-05-13	SELL	unknown	清水大輔	activist	297.0K	¥186	-2.7%	¥15M ($99K)
2026-05-13	BUY	private	株式会社DaI	corporate	6.2M	¥186	-	¥1.2B ($7.5M)
2026-05-12	BUY	subscription	株式会社日本政策投資銀行 Development Bank of Japan Inc.	passive	1.6M	¥189	+1.1%	¥295M ($1.9M)
2024-11-12	SELL	negotiated	清水大輔 Daisuke Shimizu	activist	296.2K	¥144	-32.6%	¥11M ($74K)
2024-11-12	SELL	negotiated	株式会社ヒーズ Hees Co., Ltd.	activist	2.6M	¥144	-32.6%	¥105M ($676K)
2024-11-12	SELL	negotiated	清水秀雄 Hideo Shimizu	activist	564.3K	¥144	-32.6%	¥46M ($294K)
2024-11-12	BUY	negotiated	清水弘子 Hiroko Shimizu	activist	31.1K	¥144	+32.6%	¥438M ($2.8M)
2023-10-06	BUY	Market Buy	株式会社トーハン TOHAN CORPORATION	passive	3.5M	¥189	+1.1%	¥666M ($4.3M)
2021-04-02	BUY	negotiated	カルチュア・コンビニエンス・クラブ株式会社 Culture Convenience Club Co., Ltd.	strategic	2.4M	¥354	-46.0%	¥856M ($5.5M)
2021-03-31	BUY	Market Buy	清水秀雄 Hideo Shimizu	activist	688.4K	¥357	-46.5%	¥10M ($67K)
2021-03-31	BUY	Market Buy	株式会社ヒーズ Hees Co., Ltd.	activist	2.6M	¥357	-	-
2021-03-31	BUY	Market Buy	清水弘子 Hiroko Shimizu	activist	31.1K	¥357	-	-
2021-03-31	BUY	Market Buy	清水大輔 Daisuke Shimizu	activist	294.0K	¥357	-	-

Frequently asked questions

Who has been buying TOP CULTURE Co.,Ltd. stock?: 8 distinct investors have filed 5 disclosed large-shareholding filings in TOP CULTURE Co.,Ltd. (7640), most recently on 2026-05-13. 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 TOP CULTURE Co.,Ltd. have?: TOP CULTURE Co.,Ltd. has 5 buy-side and 7 sell-side disclosures on record, covering ¥2.3B ($14.6M) in total reported value, spanning 2021-03-31 to 2026-05-13.
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.