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Sourcenext Corporation 4344

Company
ソースネクスト株式会社Sourcenext Corporation
Investors
5
Buys
2
Total Value
¥30M ($195K)
Avg Return
-32.98%
Last Filing
2026-02-24

Sourcenext Corporation (4344) has 2 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥30M ($195K) in reported transaction value. The earliest filing StockDrifts holds for Sourcenext Corporation is dated 2024-10-25; the most recent is 2026-02-24. 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 -32.98%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-02-24SELLnegotiated
リソース株式会社
strategic680.0K¥127-0.8%¥87M ($562K)
2026-02-24SELLnegotiated
松田 里美
strategic3.2M¥127-0.8%¥412M ($2.7M)
2026-02-24SELLnegotiated
松田 憲幸
activist35.6M¥127-0.8%¥4.6B ($29.4M)
2025-12-22BUYnegotiated
リソースホールディングズ株式会社
strategic680.0K¥152+15.8%¥87M ($562K)
2025-12-22SELLnegotiated
松田 里美
strategic3.1M¥152+15.8%¥399M ($2.6M)
2025-12-22BUYnegotiated
松田 憲幸
activist35.6M¥152+15.8%¥4.6B ($29.4M)
2025-12-22SELLnegotiated
リソースホールディングズ株式会社
strategic680.0K¥152+15.8%¥87M ($562K)
2025-12-22SELLnegotiated
松田 里美
strategic3.1M¥152+15.8%¥399M ($2.6M)
2025-12-22SELLnegotiated
松田 憲幸
activist35.6M¥152+15.8%¥4.6B ($29.4M)
2025-03-31BUYunknown
UBS証券株式会社
UBS Securities Co., Ltd.
other0¥217-41.0%-
2025-03-31SELLunknown
ユービーエス・エイ・ジー(銀行)
UBS AG
other18.1M¥217+41.0%¥307M ($2.0M)
2025-02-19SELLunknown
UBS証券株式会社
UBS Securities Co., Ltd.
other0¥227+43.6%¥3.7B ($24.1M)
2025-02-19SELLunknown
ユービーエス・エイ・ジー(銀行)
UBS AG
other19.7M¥227+43.6%¥320M ($2.1M)
2024-10-25BUYunknown
UBS証券株式会社
UBS Securities Co., Ltd.
other158.0K¥191-33.0%¥30M ($195K)
2024-10-25BUYunknown
ユービーエス・エイ・ジー(銀行)
UBS AG
other21.4M¥191-33.0%¥4.1B ($26.3M)

Frequently asked questions

Who has been buying Sourcenext Corporation stock?
5 distinct investors have filed 2 disclosed large-shareholding filings in Sourcenext Corporation (4344), most recently on 2026-02-24. 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 Sourcenext Corporation have?
Sourcenext Corporation has 2 buy-side and 10 sell-side disclosures on record, covering ¥30M ($195K) in total reported value, spanning 2024-10-25 to 2026-02-24.
Where does StockDrifts get Sourcenext Corporation 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 Sourcenext Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.