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Showa Paxxs Corporation 3954

Company
昭和パックス株式会社Showa Paxxs Corporation
Investors
4
Buys
6
Total Value
¥50M ($321K)
Avg Return
-0.63%
Last Filing
2026-03-31

Showa Paxxs Corporation (3954) has 6 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥50M ($321K) in reported transaction value. The earliest filing StockDrifts holds for Showa Paxxs Corporation is dated 2025-12-19; the most recent is 2026-03-31. 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 -0.63%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-03-31BUYMarket Buy
株式会社ドリームキャリアホールディングス
activist6.2K¥2,980+7.0%¥18M ($119K)
2026-03-31BUYMarket Buy
株式会社ナチュラリ
activist114.9K¥2,980+7.0%¥31M ($197K)
2026-03-31BUYMarket Buy
植島 幹九郎
activist209.8K¥2,980+7.0%¥117M ($753K)
2026-03-31BUYMarket Buy
株式会社DOE5パーセント
activist1.0K¥2,980+7.0%¥3M ($19K)
2025-12-19BUYunknown
株式会社ドリームキャリアホールディングス
activist6.2K¥3,245-4.5%¥19M ($124K)
2025-12-19BUYunknown
株式会社ナチュラリ
activist104.6K¥3,245-4.5%¥324M ($2.1M)
2025-12-19BUYunknown
植島 幹九郎
activist170.4K¥3,245-4.5%¥528M ($3.4M)
2025-12-19BUYunknown
株式会社DOE5パーセント
activist1.0K¥3,245-4.5%¥3M ($20K)

Frequently asked questions

Who has been buying Showa Paxxs Corporation stock?
4 distinct investors have filed 6 disclosed large-shareholding filings in Showa Paxxs Corporation (3954), most recently on 2026-03-31. 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 Showa Paxxs Corporation have?
Showa Paxxs Corporation has 6 buy-side and 0 sell-side disclosures on record, covering ¥50M ($321K) in total reported value, spanning 2025-12-19 to 2026-03-31.
Where does StockDrifts get Showa Paxxs 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 Showa Paxxs Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.