Best Insider Data Tools for Investing

SEC API (sec-api.io)

SEC API is a commercial EDGAR service with filing search, real-time feeds, XBRL-to-JSON conversion, section extraction, insider filings, 13F data, and other regulatory datasets. It is for production ingestion rather than building your own parser. The free tier is small and redistribution needs enterprise terms.

SEC EDGAR - Company Filings (Full‑Text Search & Search Filings)

SEC EDGAR is the free public source for company, fund, insider, ownership, prospectus, and XBRL filings submitted to the SEC. It has full-text search, latest filings, RSS, CIK lookup, public JSON APIs, archives, and bulk files. Most filings still need parsing before comparison or analysis.

SEC.gov (EDGAR)

SEC.gov EDGAR is the official free source for U.S. company, fund, insider, and 13F filings, with full-text search, RSS, bulk archives, and public JSON APIs. It is the validation source for filings research, not a polished commercial terminal.

Simply Wall St

Simply Wall St provides visual company reports, fair value estimates, dividend analysis, portfolio checks, broker imports, and global stock ideas. It suits long-term investors who prefer guided research to raw tables.

TipRanks

TipRanks combines analyst ratings, targets, expert rankings, Smart Score, AI analysis, news sentiment, insider signals, hedge-fund activity, and portfolios. It is useful for comparing market views quickly, with Premium and Ultimate adding deeper expert, portfolio, export, and AI tools.

Unusual Whales

Unusual Whales tracks options flow, dark pools, congressional trades, insider activity, market data, alerts, screeners, and social sentiment. It is built for active traders and alternative-data research, not a broker, portfolio ledger, or guarantee that unusual activity predicts returns.

13F Insight

13F Insight pulls institutional holdings, insider trades, and ownership filings into one research workspace. Its AI can answer questions with filing citations, but the filings arrive late and the generated summaries still need a check against the SEC documents.

Alpha Spread

Alpha Spread combines DCF and relative-value estimates, stock reports, screens, alerts, analyst forecasts, watchlists, and a company-question assistant. Free use is metered weekly.

Alpha Vantage

Alpha Vantage is an API-first source for market and economic data. Developers, students, quants, and analysts can pull stocks, funds, FX, crypto, options, commodities, fundamentals, news, sentiment, and macro series with one key. The free quota is small, and commercial use needs separate licensing.

AlphaResearch

AlphaResearch puts filings, transcripts, press releases, estimates, news, insider trades, ownership, and fund holdings in one searchable workspace. It is aimed at document-heavy research. Global coverage and spreadsheet add-ins require Enterprise, and the premium trial asks for a card.

AUM 13F

AUM 13F is a low-cost filing research app for asset managers, institutional holdings, private funds, real-estate managers, and LP relationships. It brings together AUM, 13F holdings, EDGAR, IAPD, CAFR-sourced portfolios, source links, and alerts. The underlying filings are still delayed and incomplete.

Benzinga

Benzinga is a real-time market-news and trading-data service for active traders, investors, developers, and data buyers. It covers alerts, scanners, calendars, squawk, options activity, analyst actions, filings, transcripts, and APIs. Real-time tools require a paid plan or add-on, and Benzinga does not provide portfolio accounting.

Börsdata

Börsdata gives investors long-history Nordic fundamentals, ratios, screens, ownership, insider and short-selling data, technical charts, reports, watchlists, calendars, and spreadsheet or API access. It is strongest for Nordic equities. Global data, holdings, Excel or Sheets workflows, and the REST API depend on the plan.

Business Quant

Business Quant covers U.S. company fundamentals, operating KPIs, segment data, analyst estimates, institutional ownership, and insider trades. It is useful when company-specific operating measures matter alongside standard financial statements. The free plan limits KPI history and API usage, while paid plans increase history and usage allowances.

CEO Watcher

CEO Watcher organizes US insider transactions by historical forward returns, win rates, trade patterns, and filing context. A free weekly newsletter covers selected trades; paid access adds search, feeds, Discord, alerts, and a daily pre-market email.

CEO.CA

CEO.CA combines Canadian small-cap chat rooms with market data for TSX, TSXV, and CSE issuers. It offers watchlists, news, SEDI insider filings, private placements, mobile access, and paid Level II depth. Community posts are leads, not research, and Pro pricing varies by exchange coverage.

Changeflow (Trackly)

Changeflow, formerly Trackly, monitors web pages, PDFs, feeds, and API endpoints. It summarizes detected changes for review. It does not supply market prices or execute trades.

ChartMill

ChartMill is a browser screener and charting service for U.S., Canadian, and European stocks and some ETFs. It supports technical and fundamental screens, swing-trading ideas, watchlists, alerts, dashboards, ratings, and strategy templates. It is still a research tool, not a broker or full portfolio ledger.

DATAROMA

DATAROMA is a focused tracker for superinvestor 13F portfolios, portfolio changes, and insider buying. It is handy for finding managers and ideas to investigate. Verify the filing date, position size, and current fundamentals before drawing a conclusion.

Delta by eToro

Delta by eToro is a read-only tracker for stocks, ETFs, funds, crypto, NFTs, forex, commodities, indices, brokers, exchanges, and wallets. Use it to see several accounts in one place. It adds visibility, not another trading venue.

Financial Datasets

Financial Datasets provides a REST API and hosted MCP server for US company fundamentals, prices, filings, insider trades, institutional ownership, news, screening, and selected crypto and macro data. It has no recurring free plan, and redistribution of underlying data requires Scale or a separate agreement.

Financial Modeling Prep (FMP)

Financial Modeling Prep provides API and spreadsheet access to market data, fundamentals, news, calendars, transcripts, ownership, and macroeconomic data. The free Basic tier is an end-of-day test plan. Real-time, global, transcript, 13F, intraday, and bulk access require paid plans. Display or redistribution requires a separate commercial agreement.

FinancialData.Net

FinancialData.Net provides market data, fundamentals, ownership, options, funds, ESG, calendars, and news through REST, Excel, and MCP interfaces. It covers stocks, ETFs, mutual funds, futures, crypto, foreign exchange, commodities, OTC securities, and indexes. The free plan is limited, and the homepage security claims are not supported by a public audit report.

FinancialReports.eu

Financial Filings provides public-company filings through a free web index, APIs and a hosted MCP server. It supports document search, Markdown extraction, standardized financials, webhooks and enterprise data delivery.

Fintel

Fintel brings short interest, off-exchange volume, institutional ownership, insider trades, ETF exposure, options sentiment, filings, screens, alerts, APIs, and AI research into ticker pages. It is useful for studying positioning and crowding before deeper fundamental work. Premium data, exports, options flow, AI, and portfolio tools depend on the plan, and the signals are inputs rather than recommendations.

FT Markets (Markets data - Financial Times)

FT Markets brings Financial Times market data close to global equities, funds, ETFs, bonds, commodities, currencies, watchlists, portfolios, alerts, charts, and screens. It is useful for FT readers who want consumer-grade tracking beside the newsroom. Data is delayed, and deeper data, director dealings, archives, and parts of the FT require a subscription.

GeminIQ

GeminIQ organizes U.S. 10-K and 10-Q data into financial statements, calculated metrics, charts, tables, screens, watchlists, ownership views, and post-filing price analysis. Values retain XBRL tags and links to SEC filings, but new data arrives the next day rather than live.

HedgeFollow

HedgeFollow organizes SEC filings into fund, stock, insider, congressional, and ETF views. Its portfolio tools combine reported institutional positions, but those filings do not show current portfolios.

InsideArbitrage

InsideArbitrage combines special-situation research with screens, calendars, newsletters and tracking tools. Its main subjects are merger arbitrage, insider trades, spinoffs, buybacks, CVRs, tender offers and activist campaigns.

Insider Monitor

Insider Monitor is a free U.S. reference site for Forms 3, 4, and 5, insider buys and sells, cluster buys, and top-buying lists. It is a quick prompt for checking recent activity and then opening the SEC filing. Reporting lags the trade, and the site does not advertise alerts, exports, or an API.

Insider Screener

Insider Screener standardizes director and insider transactions across several markets, with screens, saved stocks, exports, alerts, and a separate REST API. It is an insider-signal layer for research, not a complete thesis, broker, portfolio ledger, or unrestricted bulk feed.

InsiderScore (VerityData | InsiderScore)

InsiderScore is part of the VerityData suite. It tracks insider transactions, buybacks, management changes, ownership, and other company events. Its scores and flags are research inputs, not a complete investment thesis or an execution tool.

Marketgenius

Marketgenius is a free stock-research site with global index heatmaps, superinvestor portfolios, a stock screener, company fundamentals, ownership data, valuation tools, dividends, short interest, and financial calculators. It is not a broker, terminal, portfolio tracker, or public API.

MarketScreener

MarketScreener combines global quotes, news, watchlists, screens, charts, calendars, analyst data, financials, transcripts, ESG data, insider data, newsletters, and published portfolios. Several screens, reports, and portfolios require a paid plan.

MarketWatch

MarketWatch combines Dow Jones financial news with quotes, watchlists, screens, calendars, BigCharts, options chains, fund research, rates, newsletters, and Virtual Stock Exchange. It is a consumer market site, not a broker, professional terminal, API, or modeling system; delays and subscription boundaries still apply.

MoatMap

MoatMap combines daily Quality, Value, and Momentum scores with AI reports, insider filings, portfolio analysis, macro regimes, Top Picks, and investor lenses. Premium actions consume one-time Feather credits. Its market data and AI output still need source checks.

Nasdaq.com

Nasdaq.com offers exchange-branded quotes, news, screens, calendars, filings, options chains, watchlists, portfolios, company financials, ownership, and IPO context. Smart Portfolio Pro adds broker sync and TipRanks analytics. It is not Nasdaq Data Link, a licensed feed, broker, or professional API.

OptionStrat

OptionStrat builds and compares options strategies with payoff diagrams, Greeks, probability estimates, event dates, saved trades, alerts, and unusual-flow scans. Free quotes and flow are delayed or limited; Live Tools and Live Flow add real-time features. It is not a broker or broad portfolio system.

ORTEX

ORTEX combines short interest, securities lending, options flow, and trading-signal data for active investors, analysts, and data teams. Deeper web and API access sits behind paid tiers. It is a signal service, not a broker or portfolio ledger.

Quiver Quantitative

Quiver Quantitative provides dashboards, screens, alerts, backtests, and APIs for political trades, insiders, institutions, lobbying, government contracts, patents, apps, ETFs, dark pools, and other alternative data. Web Premium and Quiver API are separate products, and the signals can be noisy or delayed.