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Lacto Japan Co., Ltd. 3139

Company
株式会社ラクト・ジャパンLacto Japan Co., Ltd.
Investors
20
Buys
45
Total Value
¥8.9B ($57.2M)
Avg Return
+49.04%
Last Filing
2026-02-20

Lacto Japan Co., Ltd. (3139) has 45 disclosed large-shareholding filings and 28 disclosed disposals on record, filed by 20 distinct investors. Together those filings cover ¥8.9B ($57.2M) in reported transaction value. The earliest filing StockDrifts holds for Lacto Japan Co., Ltd. is dated 2021-05-11; the most recent is 2026-02-20. 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 +49.04%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-02-20BUYMarket Buy
株式会社SBI証券
other47.1K¥3,665-5.9%¥163M ($1.0M)
2026-02-20BUYMarket Buy
レオス・キャピタルワークス株式会社
passive50.0K¥3,665-5.9%¥173M ($1.1M)
2026-02-20BUYMarket Buy
SBIアセットマネジメント株式会社
passive410.2K¥3,665-5.9%¥1.4B ($9.1M)
2023-12-22BUYunknown
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
passive132.2K¥1,927+79.0%¥255M ($1.6M)
2023-12-22BUYunknown
株式会社 三井住友銀行
Sumitomo Mitsui Banking Corporation
other116.0K¥1,927+79.0%¥224M ($1.4M)
2023-12-22SELLunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other97.7K¥1,927-79.0%¥374M ($2.4M)
2023-12-07SELLunknown
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
passive132.5K¥1,904-81.2%¥91M ($587K)
2023-12-07BUYunknown
株式会社 三井住友銀行
Sumitomo Mitsui Banking Corporation
other116.0K¥1,904+81.2%¥221M ($1.4M)
2023-12-07SELLunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other291.6K¥1,904-81.2%¥135M ($868K)
2023-10-06BUYunknown
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
passive179.8K¥2,044+68.8%¥368M ($2.4M)
2023-10-06BUYunknown
株式会社 三井住友銀行
Sumitomo Mitsui Banking Corporation
other116.0K¥2,044+68.8%¥237M ($1.5M)
2023-10-06BUYunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other361.8K¥2,044+68.8%¥740M ($4.8M)
2023-07-21BUYunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other396.4K¥1,960+76.0%¥768M ($5.0M)
2023-07-21SELLunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other-7.5K¥1,960-76.0%¥10M ($63K)
2023-07-21BUYunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other1.0K¥1,960+76.0%¥127M ($816K)
2023-06-06BUYunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other466.8K¥1,960+76.0%¥903M ($5.8M)
2023-06-06SELLunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other-2.6K¥1,960-76.0%¥91M ($590K)
2023-06-06BUYunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other34.5K¥1,960+76.0%¥68M ($437K)
2023-04-20BUYMarket Buy
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other561.9K¥2,040+69.1%¥1.1B ($7.3M)
2023-04-20BUYMarket Buy
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other43.6K¥2,040+69.1%¥69M ($444K)
2023-03-22BUYMarket Buy
野村證券株式会社
Nomura Securities Co.,Ltd.
other7.2K¥1,948+77.1%¥1.2B ($7.5M)
2023-03-22BUYMarket Buy
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other685.2K¥1,948+77.1%¥1.3B ($8.5M)
2023-03-22SELLMarket Buy
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other10.0K¥1,948-77.1%¥66M ($424K)
2022-10-20BUYnegotiated
日興アセットマネジメント株式会社
Nikko Asset Management Co.,Ltd.
other104.2K¥2,135+61.6%¥13M ($82K)
2022-10-20SELLnegotiated
三井住友トラスト・アセットマネジメント株式会社
Sumitomo Mitsui Trust Asset Management Co.,Ltd.
other299.2K¥2,135-61.6%¥106M ($682K)
2022-10-20BUYnegotiated
三井住友信託銀行株式会社
Sumitomo Mitsui Trust Bank,Limited
strategic4.1K¥2,135+61.6%¥716M ($4.6M)
2022-09-06BUYMarket Buy
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other776.9K¥2,291+50.6%¥1.8B ($11.4M)
2022-09-06BUYMarket Buy
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other43.2K¥2,291+50.6%¥18M ($117K)
2022-09-06BUYMarket Buy
野村證券株式会社
Nomura Securities Co.,Ltd.
other724¥2,291+50.6%¥227M ($1.5M)
2022-06-21SELLunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other35.2K¥2,034-69.6%¥20M ($130K)
2022-06-21SELLunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other-200¥2,034-69.6%¥805M ($5.2M)
2022-06-21BUYunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other889.1K¥2,034+69.6%¥4M ($26K)
2022-06-20SELLnegotiated
三菱UFJモルガン・スタンレー証券株式会社
Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.
other11.2K¥2,026-70.3%¥285M ($1.8M)
2022-06-20SELLnegotiated
auカブコム証券株式会社
Mitsubishi UFJ Financial Group Inc.
other11.2K¥2,026-70.3%¥24M ($155K)
2022-06-20BUYnegotiated
三菱UFJ国際投信株式会社
Mitsubishi UFJ Financial Group Inc.
passive67.4K¥2,026+70.3%¥8M ($52K)
2022-06-20SELLnegotiated
三菱UFJ信託銀行株式会社
Mitsubishi UFJ Financial Group Inc.
passive153.4K¥2,026-70.3%¥2M ($13K)
2022-06-20BUYnegotiated
株式会社三菱UFJ銀行
Mitsubishi UFJ Financial Group Inc.
strategic116.0K¥2,026+70.3%¥235M ($1.5M)
2022-06-06BUYnegotiated
三菱UFJモルガン・スタンレー証券株式会社
Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.
other151.8K¥2,064+67.2%¥313M ($2.0M)
2022-06-06BUYnegotiated
auカブコム証券株式会社
Mitsubishi UFJ Financial Group Inc.
other22.4K¥2,064+67.2%¥46M ($298K)
2022-06-06BUYnegotiated
三菱UFJ国際投信株式会社
Mitsubishi UFJ Financial Group Inc.
passive63.2K¥2,064+67.2%¥130M ($842K)
2022-06-06BUYnegotiated
三菱UFJ信託銀行株式会社
Mitsubishi UFJ Financial Group Inc.
passive154.3K¥2,064+67.2%¥318M ($2.1M)
2022-06-06BUYnegotiated
株式会社三菱UFJ銀行
Mitsubishi UFJ Financial Group Inc.
strategic116.0K¥2,064+67.2%¥239M ($1.5M)
2022-05-19SELLMarket Buy
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other887.2K¥2,030-70.0%¥28M ($182K)
2022-05-19BUYMarket Buy
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other45.2K¥2,030+70.0%¥46M ($298K)
2022-05-19BUYMarket Buy
野村證券株式会社
Nomura Securities Co.,Ltd.
other4.1K¥2,030+70.0%¥804M ($5.2M)
2022-04-22SELLunknown
アセットマネジメントOne株式会社
Asset Management One Co., Ltd.
other148.3K¥2,020-70.8%¥218M ($1.4M)
2022-04-22BUYunknown
みずほ証券 株式会社
Mizuho Securities Co., Ltd.
other193.0K¥2,020+70.8%¥4M ($26K)
2022-04-22BUYunknown
株式会社みずほ銀行
Mizuho Bank, Ltd.
strategic116.0K¥2,020+70.8%¥234M ($1.5M)
2022-02-22SELLunknown
アセットマネジメントOne株式会社
Asset Management One Co., Ltd.
other256.6K¥1,990-73.4%¥230M ($1.5M)
2022-02-22SELLunknown
みずほ証券 株式会社
Mizuho Securities Co., Ltd.
other191.0K¥1,990-73.4%¥2M ($13K)

Showing the 50 most recent of 87 filings.

Frequently asked questions

Who has been buying Lacto Japan Co., Ltd. stock?
20 distinct investors have filed 45 disclosed large-shareholding filings in Lacto Japan Co., Ltd. (3139), most recently on 2026-02-20. 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 Lacto Japan Co., Ltd. have?
Lacto Japan Co., Ltd. has 45 buy-side and 28 sell-side disclosures on record, covering ¥8.9B ($57.2M) in total reported value, spanning 2021-05-11 to 2026-02-20.
Where does StockDrifts get Lacto Japan 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 Lacto Japan Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.