Track the 大豊建設株式会社 share price and the full management transaction log of the company, a listed issuer based in Japan. Shares trade on the JP market, under the oversight of EDINET (Japan FSA). Operating in the Industrials sector, 大豊建設株式会社 has recorded 15 insider filings. Market capitalisation: €68.2bn. The latest transaction was reported on 28 May 2026 (Holding update). Among the most active insiders: ―. All data is free.
15
Insider Decl.
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Thresholds
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Buy Volume
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Sell Volume
14Σ signal
This score ranks the purchase within its own market. No market currently meets the historical allocation criteria, so signals remain watch-only. Not investment advice.
Fundamental score
Ranked 12,575 of 29,064 companies
55.4
score / 100
Value
67
Quality
44
FCF yld4.2%
Earn yld6.4%
EV/EBITDA9.1x
ROE7.5%
Gross mgn11%
Net mgn3.3%
Debt/EBITDA1.0x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Σ
Sigma AI Analysis
Fundamental view, insider signal, bull and bear case, synthesis.