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Grantomato Co.,Ltd. 7137

Company
グラントマト株式会社Grantomato Co.,Ltd.
Investors
3
Buys
8
Total Value
¥363M ($2.3M)
Avg Return
+6.95%
Last Filing
2026-01-15

Grantomato Co.,Ltd. (7137) has 8 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥363M ($2.3M) in reported transaction value. The earliest filing StockDrifts holds for Grantomato Co.,Ltd. is dated 2022-03-02; the most recent is 2026-01-15. 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 +6.95%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-07-23SELLunknown
有限会社南條商店
nanjosyoten
activist1.2M¥1,200+0.0%¥48M ($309K)
2026-06-25SELLunknown
有限会社南條商店
nanjosyoten
activist1.2M¥1,200+0.0%¥26M ($166K)
2026-01-15SELLunknown
有限会社南條商店
nanjosyoten
activist1.2M¥1,200+0.0%¥52M ($336K)
2025-04-17BUYMarket Buy
有限会社南條商店
nanjosyoten
activist1.2M¥1,160+3.5%¥57M ($367K)
2024-07-30SELLMarket Buy
南條 祥子
Shoko Nanjo
passive0¥1,135.833-5.7%¥89M ($573K)
2024-07-30BUYMarket Buy
南條 浩
hiroshi nanjo
passive100.2K¥1,135.833+5.7%¥113M ($727K)
2024-07-30BUYMarket Buy
有限会社南條商店
nanjosyoten
activist1.2M¥1,135.833+5.7%¥84M ($539K)
2024-05-07BUYunknown
有限会社南條商店
nanjosyoten
activist1.1M¥1,135.833+5.7%¥43M ($278K)
2024-05-07BUYunknown
有限会社南條商店
nanjosyoten
activist1.1M¥1,135.833+5.7%¥42M ($274K)
2024-05-07BUYunknown
有限会社南條商店
nanjosyoten
activist1.1M¥1,135.833+5.7%¥42M ($274K)
2022-03-02BUYMarket Buy
南條 祥子
Shoko Nanjo
passive75.0K¥1,102.942+8.8%¥83M ($534K)
2022-03-02BUYMarket Buy
南條 浩
hiroshi nanjo
passive100.2K¥1,102.942+8.8%¥111M ($713K)
2022-03-02BUYunknown
有限会社南條商店
nanjosyoten
activist1.1M¥1,102.942+8.8%¥1.2B ($7.9M)
2022-03-02BUYunknown
有限会社南條商店
nanjosyoten
activist1.1M¥1,102.942+8.8%¥1.2B ($7.9M)
2022-03-02BUYMarket Buy
南條 浩
hiroshi nanjo
passive100.2K¥1,102.942+8.8%¥111M ($713K)

Frequently asked questions

Who has been buying Grantomato Co.,Ltd. stock?
3 distinct investors have filed 8 disclosed large-shareholding filings in Grantomato Co.,Ltd. (7137), most recently on 2026-01-15. 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 Grantomato Co.,Ltd. have?
Grantomato Co.,Ltd. has 8 buy-side and 2 sell-side disclosures on record, covering ¥363M ($2.3M) in total reported value, spanning 2022-03-02 to 2026-01-15.
Where does StockDrifts get Grantomato Co.,Ltd. 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 Grantomato Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.