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Mitsubishi Paper Mills Limited 3864

Company
三菱製紙株式会社Mitsubishi Paper Mills Limited
Investors
1
Buys
2
Total Value
¥359M ($2.3M)
Avg Return
+47.07%
Last Filing
2025-08-15

Mitsubishi Paper Mills Limited (3864) has 2 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 1 distinct investors. Together those filings cover ¥359M ($2.3M) in reported transaction value. The earliest filing StockDrifts holds for Mitsubishi Paper Mills Limited is dated 2025-07-30; the most recent is 2025-08-15. 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 +47.07%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-08-05BUYunknown
株式会社Mホールディングス
activist145.7K¥1,174-1.9%¥171M ($1.1M)
2026-08-05BUYMarket Buy
株式会社C&I Holdings
activist2.6M¥1,174-1.9%¥567M ($3.7M)
2026-08-05BUYunknown
株式会社シティインデックスイレブンス
activist100¥1,174-1.9%¥117K ($757)
2026-07-30BUYMarket Buy
ウィル・フィールド・キャピタル・ピーティーイー・エルティーディー(WILL FIELD CAPITAL PTE.LTD.)
WILL FIELD CAPITAL PTE.LTD.
passive3.2M¥1,117+3.1%¥3.6B ($23.4M)
2026-07-21BUYunknown
株式会社Mホールディングス
activist145.7K¥1,226-6.0%¥179M ($1.2M)
2026-07-21BUYunknown
株式会社C&I Holdings
activist2.1M¥1,226-6.0%¥2.6B ($16.7M)
2026-07-21BUYunknown
株式会社シティインデックスイレブンス
activist100¥1,226-6.0%¥123K ($791)
2026-05-18BUYMarket Buy
ウィル・フィールド・キャピタル・ピーティーイー・エルティーディー(WILL FIELD CAPITAL PTE.LTD.)
WILL FIELD CAPITAL PTE.LTD.
passive3.2M¥1,036+2.4%¥487M ($3.1M)
2025-08-15BUYMarket Buy
ウィル・フィールド・キャピタル・ピーティーイー・エルティーディー(WILL FIELD CAPITAL PTE.LTD.)
WILL FIELD CAPITAL PTE.LTD.
passive2.8M¥668+45.5%¥359M ($2.3M)
2025-07-30BUYMarket Buy
ウィル・フィールド・キャピタル・ピーティーイー・エルティーディー(WILL FIELD CAPITAL PTE.LTD.)
WILL FIELD CAPITAL PTE.LTD.
passive2.2M¥654+48.6%¥1.5B ($9.4M)
2025-07-30BUYMarket Buy
ウィル・フィールド・キャピタル・ピーティーイー・エルティーディー(WILL FIELD CAPITAL PTE.LTD.)
WILL FIELD CAPITAL PTE.LTD.
passive2.2M¥654+48.6%¥1.5B ($9.4M)

Frequently asked questions

Who has been buying Mitsubishi Paper Mills Limited stock?
1 distinct investors have filed 2 disclosed large-shareholding filings in Mitsubishi Paper Mills Limited (3864), most recently on 2025-08-15. 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 Mitsubishi Paper Mills Limited have?
Mitsubishi Paper Mills Limited has 2 buy-side and 0 sell-side disclosures on record, covering ¥359M ($2.3M) in total reported value, spanning 2025-07-30 to 2025-08-15.
Where does StockDrifts get Mitsubishi Paper Mills Limited 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 Mitsubishi Paper Mills Limited. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.