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Sonocom Co.,Ltd. 7902

Company
株式会社ソノコムSonocom Co.,Ltd.
Investors
6
Buys
1
Total Value
¥124M ($799K)
Avg Return
+29.50%
Last Filing
2025-10-31

Sonocom Co.,Ltd. (7902) has 1 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥124M ($799K) in reported transaction value. The earliest filing StockDrifts holds for Sonocom Co.,Ltd. is dated 2025-10-31; the most recent is 2025-10-31. 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 +29.50%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-10-31BUYunknown
有限会社ケイエスシー
KSC Ltd.
strategic538.5K¥888+29.5%¥478M ($3.1M)
2025-10-31BUYunknown
岨野 弘子
Hiroko Sano
strategic43.0K¥888+29.5%¥38M ($246K)
2025-10-31BUYMarket Buy
岨野聖美
Kiyomi Sano
strategic32.0K¥888+29.5%¥28M ($183K)
2025-10-31BUYunknown
段 裕之
Hiroyuki Dan
other538.4K¥888+29.5%¥478M ($3.1M)
2025-10-31BUYunknown
有限会社ケイエスシー
KSC Ltd.
strategic538.5K¥888+29.5%¥478M ($3.1M)
2025-10-31SELLunknown
岨野 弘子
Hiroko Sano
strategic0¥888-29.5%¥38M ($246K)
2025-10-31SELLunknown
岨野 俊雄(相続人代表 岨野 弘子)
Toshio Sano (Heir representative Hiroko Sano)
other0¥888-29.5%¥664M ($4.3M)
2025-10-31BUYMarket Buy
岨野公一
Koichi Sano
other619.4K¥888+29.5%¥124M ($799K)
2025-10-31BUYunknown
岨野 俊雄(相続人代表 岨野 弘子)
Toshio Sano (Heir representative Hiroko Sano)
other748.0K¥888+29.5%¥54M ($349K)

Frequently asked questions

Who has been buying Sonocom Co.,Ltd. stock?
6 distinct investors have filed 1 disclosed large-shareholding filings in Sonocom Co.,Ltd. (7902), most recently on 2025-10-31. 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 Sonocom Co.,Ltd. have?
Sonocom Co.,Ltd. has 1 buy-side and 2 sell-side disclosures on record, covering ¥124M ($799K) in total reported value, spanning 2025-10-31 to 2025-10-31.
Where does StockDrifts get Sonocom 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 Sonocom Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.