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Socialwire Co., Ltd. 3929

Company
ソーシャルワイヤー株式会社Socialwire Co., Ltd.
Investors
4
Buys
2
Total Value
¥3.1B ($19.8M)
Avg Return
+21.35%
Last Filing
2026-04-13

Socialwire Co., Ltd. (3929) has 2 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥3.1B ($19.8M) in reported transaction value. The earliest filing StockDrifts holds for Socialwire Co., Ltd. is dated 2021-04-06; the most recent is 2026-04-13. 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 +21.35%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-04-13SELLMarket Buy
ユナイテッド株式会社
UNITED, Inc.
passive315.1K¥325-4.0%¥97M ($626K)
2026-02-26SELLunknown
矢田 峰之
Mineyuki Yata
activist1.2M¥309-4.8%¥38M ($246K)
2026-02-26SELLunknown
矢田 峰之
Mineyuki Yata
activist1.2M¥309-4.8%¥38M ($246K)
2024-07-03SELLunknown
矢田 峰之
Mineyuki Yata
activist1.3M¥264-22.7%¥314M ($2.0M)
2024-07-02BUYunknown
株式会社ジーニー
Geniee, Inc.
corporate5.7M¥267+21.4%¥1.5B ($9.9M)
2024-07-02BUYunknown
株式会社ジーニー
Geniee, Inc.
corporate5.7M¥267+21.4%¥1.5B ($9.9M)
2024-05-01BUYprivate
矢田 峰之
Mineyuki Yata
activist1.3M¥259+25.1%¥338M ($2.2M)
2024-03-14SELLMarket Buy
ユナイテッド株式会社
UNITED, Inc.
passive316.4K¥256-26.6%¥30M ($197K)
2024-03-14BUYMarket Buy
ユナイテッド株式会社
UNITED, Inc.
passive316.4K¥256+26.6%¥30M ($197K)
2023-11-16SELLprivate
矢田 峰之
Mineyuki Yata
activist1.3M¥238-36.1%¥12M ($76K)
2023-09-22SELLprivate
矢田 峰之
Mineyuki Yata
activist1.3M¥292-11.0%¥14M ($93K)
2021-04-06SELLMarket 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
passive255.5K¥795+59.3%¥60M ($385K)

Frequently asked questions

Who has been buying Socialwire Co., Ltd. stock?
4 distinct investors have filed 2 disclosed large-shareholding filings in Socialwire Co., Ltd. (3929), most recently on 2026-04-13. 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 Socialwire Co., Ltd. have?
Socialwire Co., Ltd. has 2 buy-side and 8 sell-side disclosures on record, covering ¥3.1B ($19.8M) in total reported value, spanning 2021-04-06 to 2026-04-13.
Where does StockDrifts get Socialwire 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 Socialwire Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.