StockDrifts LogoStockDrifts

Optoelectronics Co.,Ltd. 6664

Company
株式会社オプトエレクトロニクスOptoelectronics Co.,Ltd.
Investors
3
Buys
2
Total Value
¥840M ($5.4M)
Avg Return
-20.00%
Last Filing
2026-01-14

Optoelectronics Co.,Ltd. (6664) has 2 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥840M ($5.4M) in reported transaction value. The earliest filing StockDrifts holds for Optoelectronics Co.,Ltd. is dated 2021-04-23; the most recent is 2026-01-14. 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 -20.00%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-01-14BUYunknown
エスクエア・ビジョン・リミテッド
Esquarre Vision Limited
other3.0M¥350-20.0%¥840M ($5.4M)
2026-01-14BUYunknown
日本エイサー株式会社
other5.8M¥350-20.0%¥1.6B ($10.5M)
2021-05-27SELLMarket Buy
サマラン ユーシッツ(SAMARANG UCITS)
SAMARANG UCITS
passive258.9K¥602+53.5%¥58M ($373K)
2021-05-25SELLMarket Buy
サマラン ユーシッツ(SAMARANG UCITS)
SAMARANG UCITS
passive355.2K¥586+52.2%¥41M ($266K)
2021-05-24SELLMarket Buy
サマラン ユーシッツ(SAMARANG UCITS)
SAMARANG UCITS
passive425.8K¥575+51.3%¥50M ($320K)
2021-04-30SELLMarket Buy
サマラン ユーシッツ(SAMARANG UCITS)
SAMARANG UCITS
passive511.6K¥645+56.6%¥68M ($441K)
2021-04-23SELLMarket Buy
サマラン ユーシッツ(SAMARANG UCITS)
SAMARANG UCITS
passive617.7K¥651+57.0%¥45M ($290K)

Frequently asked questions

Who has been buying Optoelectronics Co.,Ltd. stock?
3 distinct investors have filed 2 disclosed large-shareholding filings in Optoelectronics Co.,Ltd. (6664), most recently on 2026-01-14. 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 Optoelectronics Co.,Ltd. have?
Optoelectronics Co.,Ltd. has 2 buy-side and 5 sell-side disclosures on record, covering ¥840M ($5.4M) in total reported value, spanning 2021-04-23 to 2026-01-14.
Where does StockDrifts get Optoelectronics 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 Optoelectronics Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.