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Kyoei Security Service Co., Ltd. 7058

Company
共栄セキュリティーサービス株式会社Kyoei Security Service Co., Ltd.
Investors
4
Buys
8
Total Value
¥536M ($3.5M)
Avg Return
+5.05%
Last Filing
2025-09-29

Kyoei Security Service Co., Ltd. (7058) has 8 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥536M ($3.5M) in reported transaction value. The earliest filing StockDrifts holds for Kyoei Security Service Co., Ltd. is dated 2022-04-19; the most recent is 2025-09-29. 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 +5.05%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-06-03BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive92.4K¥2,998+4.1%¥45M ($291K)
2025-09-29BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive77.3K¥2,834+6.7%¥5M ($33K)
2025-08-26BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive75.5K¥2,795+8.2%¥211M ($1.4M)
2025-08-12BUYunknown
株式会社ケイ・エス・エス
Co.Ltd.Co kei esu esu
strategic113.0K¥2,671+13.3%¥78M ($506K)
2025-08-12BUYMarket Buy
株式会社ケイ・エス・エス
Co.Ltd.Co kei esu esu
strategic113.0K¥2,671+13.3%¥88M ($569K)
2024-04-10BUYMarket Buy
合同会社あっとプラニング
Atto Planing LLC.
strategic641.7K¥2,944+2.8%¥108M ($698K)
2024-04-10SELLunknown
我妻 文男
Fumio Agatsuma
activist0¥2,944-2.8%¥108M ($698K)
2024-04-10SELLMarket Buy
我妻 文男
Fumio Agatsuma
activist0¥2,944-2.8%¥108M ($698K)
2024-04-10BUYunknown
合同会社あっとプラニング
Atto Planing LLC.
strategic641.7K¥2,944+2.8%¥108M ($698K)
2024-04-04BUYunknown
合同会社あっとプラニング
Atto Planing LLC.
strategic641.7K¥2,942+2.8%¥108M ($698K)
2024-04-04SELLunknown
我妻 文男
Fumio Agatsuma
activist0¥2,942-2.8%¥108M ($698K)
2024-04-04SELLMarket Buy
我妻 文男
Fumio Agatsuma
activist0¥2,942-2.8%¥108M ($698K)
2024-04-04BUYMarket Buy
合同会社あっとプラニング
Atto Planing LLC.
strategic641.7K¥2,942+2.8%¥108M ($698K)
2022-04-19BUYunknown
我妻 文男
Fumio Agatsuma
activist36.7K¥2,995+1.0%¥10M ($67K)
2022-04-19BUYunknown
合同会社あっとプラニング
Atto Planing LLC.
strategic605.0K¥2,995+1.0%¥1.8B ($11.7M)

Frequently asked questions

Who has been buying Kyoei Security Service Co., Ltd. stock?
4 distinct investors have filed 8 disclosed large-shareholding filings in Kyoei Security Service Co., Ltd. (7058), most recently on 2025-09-29. 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 Kyoei Security Service Co., Ltd. have?
Kyoei Security Service Co., Ltd. has 8 buy-side and 4 sell-side disclosures on record, covering ¥536M ($3.5M) in total reported value, spanning 2022-04-19 to 2025-09-29.
Where does StockDrifts get Kyoei Security Service 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 Kyoei Security Service Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.