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Nippon Primex Inc. 2795

Company
日本プリメックス株式会社Nippon Primex Inc.
Investors
8
Buys
4
Total Value
¥113M ($727K)
Avg Return
+14.38%
Last Filing
2025-09-26

Nippon Primex Inc. (2795) has 4 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥113M ($727K) in reported transaction value. The earliest filing StockDrifts holds for Nippon Primex Inc. is dated 2021-11-29; the most recent is 2025-09-26. 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 +14.38%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-09-26BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive55.5K¥878+3.6%¥49M ($314K)
2025-09-26BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive100.4K¥878+3.6%¥31M ($200K)
2025-09-26BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive394.0K¥878+3.6%¥346M ($2.2M)
2025-02-21BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive55.5K¥890+2.3%¥49M ($319K)
2025-02-21BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive65.3K¥890+2.3%¥49M ($317K)
2025-02-21BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive394.0K¥890+2.3%¥351M ($2.3M)
2023-08-23BUYunknown
雪谷商事株式会社
Yukitani Shoji Co., Ltd.
activist270.0K¥726+25.3%¥196M ($1.3M)
2023-08-23BUYunknown
中川 優
Yu Nakagawa
other221.4K¥726+25.3%¥161M ($1.0M)
2023-08-23BUYunknown
中川 亮
Ryo Nakagawa
other221.4K¥726+25.3%¥161M ($1.0M)
2023-08-23BUYunknown
中川 悦子
Etsuko Nakagawa
other889.4K¥726+25.3%¥646M ($4.2M)
2023-08-23SELLunknown
中川 善司
ZENJI NAKAGAWA
activist1.8M¥726-25.3%¥174M ($1.1M)
2022-01-18SELLMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive394.0K¥711-28.0%¥40M ($256K)
2022-01-18BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive55.5K¥711+28.0%¥39M ($255K)
2022-01-18BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive9.7K¥711+28.0%¥2M ($13K)
2021-11-29BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive7.1K¥736+23.6%¥5M ($34K)
2021-11-29BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive449.5K¥736+23.6%¥30M ($197K)

Frequently asked questions

Who has been buying Nippon Primex Inc. stock?
8 distinct investors have filed 4 disclosed large-shareholding filings in Nippon Primex Inc. (2795), most recently on 2025-09-26. 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 Nippon Primex Inc. have?
Nippon Primex Inc. has 4 buy-side and 2 sell-side disclosures on record, covering ¥113M ($727K) in total reported value, spanning 2021-11-29 to 2025-09-26.
Where does StockDrifts get Nippon Primex Inc. 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 Nippon Primex Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.