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Headquartered in Japan, Chuo Spring Co.,Ltd. is a listed company and traces its origins to 1948. Filings by its managers are published through EDINET (Japan FSA). In the past year (18 October 2025 to 18 October 2026), 6 filings came from 1 insider.
No open-market purchase or sale appears among the filings, only grants, plan transactions and other operations. Grants and option exercises follow pay plans set in advance, so they reveal less about an insider's own view than a purchase made with personal money.
No insider has bought Chuo Spring Co.,Ltd. shares on the open market in the past twelve months. Filings reach the EDINET (Japan FSA) feed a median of 8 days after the trade. Until a filing is published, the market cannot know about the trade.
With 6 filings in twelve months, the company is more active than the median of 3 filings across the 3,419 companies we follow on the same exchange.
Every figure here comes from the filings published by EDINET (Japan FSA) and describes the past, not future prices; it is not investment advice.
Headquarters: Japan · Founded: 1948
Source: Wikidata (CC0).
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Transparent value + quality ranking, distinct from the insider signal.
FY ended March 2026 · cache
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Chuo Hatsujo Co., Ltd. is a Japanese company specializing in the manufacturing of springs and metal components. It is listed on the Tokyo Stock Exchange.