Single Source of Truth
Our company roster is curated and maintained as the single source of truth for all analyses.
Built on regulatory filings. Updated daily.
GoldSignal.ai is powered by official filings and market data from trusted sources. No opinions. No paywalls. Just verifiable data and transparent methodology.
Regulatory filings for ownership and insider activity. Named market-data providers for prices and company fundamentals. Each source has a job; nothing is invented on page load.
Form 4 · 13F · 13D/G
Official U.S. SEC filings. We parse Form 4 insider trades, 13F institutional holdings, and Schedules 13D/G directly from EDGAR.
Insider Transactions (SEDI)
Many tracked names file Canadian insider reports. Matched SEDI open-market buys are published when promoted; coverage is partial and may lag.
Primary market data
Primary market-data feed for prices, market caps, betas, and historical series. Pages read from cache, not a live call on load.
Supplemental company data
Supplemental source layered behind Polygon for company profile and fundamental fields when the primary feed is thin, especially OTC and Canadian-listed junior miners.
Filings trace to SEC accession numbers, SEDI transactions, or SEDAR+ documents. Market and company fields come from named providers (Polygon primary, FMP supplemental). Each source is refreshed on a schedule so coverage reaches smaller resource names many trackers miss.
Companies Tracked
Across global precious metals mining
Curated Investors / Filers
High-conviction funds and individuals
Institutional Filers
Surfaced via reverse lookup from holdings disclosures
Verified 13F Filers
Portfolios fully ingested
By Market Cap Tier
Tier counts omitted because market-cap coverage is incomplete
We're as proud of what we don't track as what we do. Resource investor Rick Rule estimates there are roughly 3,000 publicly traded junior mining and exploration companies worldwide, and that the large majority, by his estimate around 85 to 90 percent, will never create lasting value: diluted away, tied to uneconomic projects, or run as lifestyle businesses. Our universe is deliberately curated, not comprehensive.
We track all reportable insider buys, sells, and grants.
Plain-English code labels
Quarterly 13F filings show long equity positions.
We highlight high-conviction behaviors across investors.
Objective, reproducible, not subjective.
All derived metrics are purely mathematical and fully reproducible. Assumptions and formulas are documented.
We run a daily background refresh cycle to capture new filings and update all metrics across the platform.
Last Updated
Aug 12, 2026 • 5:25 PM ET
SEC EDGAR · SEDIPolygon · FMP
Automated collection,parsing, and validation
Entity resolution,ticker mapping,metric calculations
Clean data, signals,charts, and insightson the platform
Our company roster is curated and maintained as the single source of truth for all analyses.
Positions are sourced from Form 4, 13F filings, fund fact sheets, and named investor statements when explicitly disclosed.
We normalize tickers across exchanges (e.g., TSX, NYSE, OTC) and resolve collisions to the correct legal entity.
We document methodologies, assumptions, and data limitations so you always know what you are looking at.
Acquired, merged, and delisted companies are flagged and retained for historical accuracy and continuity.
GoldSignal is built to surface overlooked companies where investor and insider activity is less visible.
Regulatory data. Transparent methodology. Repeatable process.