Who has been buying Sportsfield Co., Ltd. stock?

6 distinct investors have filed 3 disclosed large-shareholding filings in Sportsfield Co., Ltd. (7080), most recently on 2025-07-28. 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 Sportsfield Co., Ltd. have?

Sportsfield Co., Ltd. has 3 buy-side and 8 sell-side disclosures on record, covering ¥116M ($745K) in total reported value, spanning 2024-02-22 to 2025-07-28.

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.

Sportsfield Co., Ltd. 7080

Company

株式会社スポーツフィールドSportsfield Co., Ltd.

Investors

Buys

Total Value

¥116M ($745K)

Avg Return

+12.75%

Last Filing

2025-07-28

Sportsfield Co., Ltd. (7080) has 3 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥116M ($745K) in reported transaction value. The earliest filing StockDrifts holds for Sportsfield Co., Ltd. is dated 2024-02-22; the most recent is 2025-07-28. Across these filings the average return since disclosure is +12.75%, 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
2025-07-28	BUY	unknown	篠﨑克志 Katsushi Shinozaki	activist	1.6M	¥722	-	¥12M ($76K)
2025-07-28	SELL	unknown	篠﨑克志 Katsushi Shinozaki	activist	1.6M	¥722	-24.6%	¥12M ($80K)
2024-07-29	BUY	unknown	森本翔太 Shota Morimoto	activist	790.4K	¥821	-	¥71M ($461K)
2024-07-29	SELL	unknown	伊地知和義 Kazuyoshi Ijichi	activist	790.4K	¥821	-9.6%	¥71M ($461K)
2024-07-29	SELL	unknown	森本翔太 Shota Morimoto	activist	790.4K	¥821	-9.6%	¥71M ($461K)
2024-07-29	SELL	unknown	加地正 Tadashi Kaji	activist	790.4K	¥821	-9.6%	¥71M ($461K)
2024-07-29	SELL	unknown	篠﨑克志 Katsushi Shinozaki	activist	1.6M	¥821	-9.6%	¥102M ($657K)
2024-07-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	15.0K	¥844	-6.6%	¥75M ($486K)
2024-07-22	SELL	unknown	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	371.0K	¥844	-6.6%	¥623K ($4K)
2024-05-09	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	104.0K	¥730	-23.3%	¥60M ($385K)
2024-05-09	BUY	unknown	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	371.0K	¥730	+23.3%	¥38M ($246K)
2024-02-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	159.4K	¥833	+8.0%	¥133M ($857K)
2024-02-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	92.9K	¥833	+8.0%	¥77M ($499K)

Frequently asked questions

Who has been buying Sportsfield Co., Ltd. stock?: 6 distinct investors have filed 3 disclosed large-shareholding filings in Sportsfield Co., Ltd. (7080), most recently on 2025-07-28. 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 Sportsfield Co., Ltd. have?: Sportsfield Co., Ltd. has 3 buy-side and 8 sell-side disclosures on record, covering ¥116M ($745K) in total reported value, spanning 2024-02-22 to 2025-07-28.
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.