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Uluru.Co.,Ltd. 3979

Company
株式会社うるるUluru.Co.,Ltd.
Investors
12
Buys
27
Total Value
¥869M ($5.6M)
Avg Return
-14.77%
Last Filing
2026-03-09

Uluru.Co.,Ltd. (3979) has 27 disclosed large-shareholding filings and 22 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥869M ($5.6M) in reported transaction value. The earliest filing StockDrifts holds for Uluru.Co.,Ltd. is dated 2021-03-22; the most recent is 2026-03-09. Across these filings the average return since disclosure is -14.77%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-03-09BUYMarket Buy
光通信株式会社
passive2.1M¥373--
2026-03-09BUYMarket Buy
株式会社UH Partners 3
passive2.1M¥373--
2026-03-09BUYMarket Buy
株式会社エスアイエル
passive1.8M¥373--
2026-03-09BUYMarket Buy
株式会社UH5
passive2.1M¥373--
2026-03-09BUYMarket Buy
株式会社UH Partners 2
passive761.9K¥373+24.7%¥104M ($673K)
2025-09-26BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥435--
2025-09-26BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive120.8K¥435+6.9%¥21M ($138K)
2025-09-26BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive529.2K¥435--
2025-09-26BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive441.3K¥435--
2025-09-26BUYMarket Buy
株式会社UH5
UH5 Co., Ltd.
passive518.9K¥435--
2025-08-05BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥389.5--
2025-08-05SELLMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive71.5K¥389.5-19.4%¥215M ($1.4M)
2025-08-05BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive529.2K¥389.5--
2025-08-05BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive441.3K¥389.5+19.4%¥1M ($9K)
2025-08-05BUYMarket Buy
株式会社UH5
UH5 Co., Ltd.
passive518.9K¥389.5--
2025-03-17BUYMarket Buy
株式会社UH5
UH5 Co., Ltd.
passive518.9K¥421.75-¥219M ($1.4M)
2025-03-17BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive6.1K¥421.75+10.3%¥41M ($268K)
2025-03-17BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive529.2K¥421.75--
2025-03-17BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive437.4K¥421.75+10.3%¥6M ($36K)
2025-03-17BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥421.75--
2025-02-26BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥401--
2025-02-26BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive525.0K¥401--
2025-02-26BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive529.2K¥401--
2025-02-26BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive424.7K¥401+16.0%¥28M ($179K)
2024-12-27BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive355.4K¥374.75+24.1%¥66M ($424K)
2024-12-27BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive525.0K¥374.75--
2024-12-27BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥374.75--
2024-12-27BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive529.2K¥374.75--
2024-12-19BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥350--
2024-12-19BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive525.0K¥350--
2024-12-19BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive529.2K¥350--
2024-12-19BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive179.8K¥350+32.9%¥24M ($158K)
2024-09-30BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥285--
2024-09-30BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive525.0K¥285--
2024-09-30BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive529.2K¥285+63.2%¥26M ($169K)
2024-09-30BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive110.1K¥285--
2024-08-27BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive525.0K¥318.5--
2024-08-27BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥318.5--
2024-08-27BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive437.3K¥318.5+46.0%¥22M ($142K)
2024-08-27BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive110.1K¥318.5--
2024-07-04BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥375.75--
2024-07-04BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive525.0K¥375.75--
2024-07-04BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive367.4K¥375.75+23.8%¥26M ($170K)
2024-07-04BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive110.1K¥375.75--
2024-05-22BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥403.75--
2024-05-22BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive525.0K¥403.75--
2024-05-22BUYMarket Buy
株式会社UH Partners 3
UH Partners 3 Co., Ltd.
passive297.5K¥403.75+15.2%¥28M ($182K)
2024-05-22BUYMarket Buy
株式会社エスアイエル
SIL Co., Ltd.
passive110.1K¥403.75--
2024-05-09BUYMarket Buy
光通信株式会社
Hikari Tsushin K.K.
passive525.0K¥392.25--
2024-05-09BUYMarket Buy
株式会社UH Partners 2
UH Partners 2, Inc.
passive525.0K¥392.25--

Showing the 50 most recent of 117 filings.

Frequently asked questions

Who has been buying Uluru.Co.,Ltd. stock?
12 distinct investors have filed 27 disclosed large-shareholding filings in Uluru.Co.,Ltd. (3979), most recently on 2026-03-09. 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 Uluru.Co.,Ltd. have?
Uluru.Co.,Ltd. has 27 buy-side and 22 sell-side disclosures on record, covering ¥869M ($5.6M) in total reported value, spanning 2021-03-22 to 2026-03-09.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.