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Okura Industrial Co., Ltd. 4221

Company
大倉工業株式会社Okura Industrial Co., Ltd.
Investors
5
Buys
8
Total Value
¥4.5B ($29.2M)
Avg Return
+99.54%
Last Filing
2025-06-17

Okura Industrial Co., Ltd. (4221) has 8 disclosed large-shareholding filings and 1 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥4.5B ($29.2M) in reported transaction value. The earliest filing StockDrifts holds for Okura Industrial Co., Ltd. is dated 2021-11-22; the most recent is 2025-06-17. 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 +99.54%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2025-06-17SELLunknown
オークラ共栄会 理事長 長野 光幸
MItsuyuki Nagano, Chairperson, Okura Kyoeikai Client Stock Ownership
other484.4K¥4,295-9.8%¥587M ($3.8M)
2024-07-03BUYunknown
住友化学株式会社
SUMITOMO CHEMICAL COMPANY, LIMITED
strategic674.6K¥2,982+58.1%¥2.0B ($13.0M)
2024-05-17BUYunknown
オークラ共栄会 理事長 長野 光幸
Mitsuyuki Nagano, Chairperson, Okura Kyoeikai Client Stock Ownership
other620.8K¥2,933+60.8%¥1.8B ($11.7M)
2024-02-28BUYunknown
住化カラー株式会社
Sumika Color Co., Ltd.
strategic39.6K¥3,235+45.8%¥128M ($827K)
2024-02-28BUYunknown
住友化学株式会社
SUMITOMO CHEMICAL COMPANY, LIMITED
strategic674.6K¥3,235+45.8%¥2.2B ($13.9M)
2024-01-05BUYunknown
住化カラー株式会社
Sumika Color Co., Ltd.
strategic39.5K¥2,542+85.5%¥13M ($81K)
2024-01-05BUYunknown
住友化学株式会社
SUMITOMO CHEMICAL COMPANY, LIMITED
strategic819.1K¥2,542+85.5%¥2.1B ($13.3M)
2023-05-30BUYunknown
住化カラー株式会社
Sumika Color Co., Ltd.
strategic35.1K¥2,051+129.9%¥72M ($464K)
2023-05-30BUYunknown
住友化学株式会社
SUMITOMO CHEMICAL COMPANY, LIMITED
strategic963.6K¥2,051+129.9%¥2.0B ($12.8M)
2022-01-21BUYunknown
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
passive251.6K¥1,962+140.3%¥27M ($173K)
2022-01-21BUYunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other73.4K¥1,962+140.3%¥135M ($870K)
2021-11-22BUYunknown
SMBC日興証券株式会社
SMBC Nikko Securities Inc.
other455.6K¥2,152+119.1%¥980M ($6.3M)
2021-11-22BUYunknown
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
passive238.3K¥2,152+119.1%¥513M ($3.3M)

Frequently asked questions

Who has been buying Okura Industrial Co., Ltd. stock?
5 distinct investors have filed 8 disclosed large-shareholding filings in Okura Industrial Co., Ltd. (4221), most recently on 2025-06-17. 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 Okura Industrial Co., Ltd. have?
Okura Industrial Co., Ltd. has 8 buy-side and 1 sell-side disclosures on record, covering ¥4.5B ($29.2M) in total reported value, spanning 2021-11-22 to 2025-06-17.
Where does StockDrifts get Okura Industrial 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 Okura Industrial Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.