VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Tuesday, November 11, 2025

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Tool Comparison

DATAROMA vs OpenInsider comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

DATAROMA adds Stock Ideas, Investor Holdings, and 13F coverage that OpenInsider skips.

OpenInsider includes Screeners, Regulatory Filings Monitoring, and Data Visualizations categories that DATAROMA omits.

In depth comparison

DATAROMA logo

DATAROMA

dataroma.com

Hands-on review

Free resource that tracks Superinvestor 13F filings and insider Form 4 activity. Features include manager portfolios, aggregated holdings, insider trade feeds, and stock idea rankings. Quotes are sourced via Intrinio, with charts and fundamentals powered by TradingView. The site requires no login or account to use.

Platforms

Web

Pricing

Free

Quick highlights

  • Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity.
  • Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals.
  • Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings.
  • ‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported.
  • S&P 500 'Value Ranking' grid for idea generation and stock discovery.

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OpenInsider logo

OpenInsider

openinsider.com

Editor’s pick Hands-on review

Free web-based screener for U.S. SEC Form 4 filings, tracking insider buys and sells in real time. Data is sourced directly from SEC.gov and refreshed between 6:00 and 22:00 ET on U.S. business days.

Platforms

Web

Pricing

Free

Quick highlights

  • Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks.
  • Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales.
  • Aggregate Buy–Sell charts to visualize overall insider sentiment.
  • Detailed filing tables with trade/filing dates, transaction codes, prices, quantities, and values, with an integrated code legend.
  • Ability to drill down by sector, industry, ticker, or individual insider profile.

Community votes (overall)

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Where they differ

DATAROMA

Distinct strengths include:

Stock IdeasInvestor Holdings13F
  • Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity.
  • Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals.
  • Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings.
  • ‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported.

OpenInsider

Distinct strengths include:

ScreenersRegulatory Filings MonitoringData Visualizations
  • Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks.
  • Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales.
  • Aggregate Buy–Sell charts to visualize overall insider sentiment.
  • Detailed filing tables with trade/filing dates, transaction codes, prices, quantities, and values, with an integrated code legend.

Feature-by-feature breakdown

AttributeDATAROMAOpenInsider
Categories

Which research workflows each platform targets

Shared: Insider Data

Unique: Stock Ideas, Investor Holdings, 13F

Shared: Insider Data

Unique: Screeners, Regulatory Filings Monitoring, Data Visualizations

Asset types

Supported asset classes and universes

Stocks, ETFs

Stocks

Experience levels

Who each product is built for

Beginner, Intermediate, Advanced

Beginner, Intermediate, Advanced

Platforms

Where you can access the product

Web

Web

Pricing

High-level pricing models

Free

Free

Key features

Core capabilities called out by each vendor

Unique

  • Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity.
  • Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals.
  • Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings.
  • ‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported.
  • S&P 500 'Value Ranking' grid for idea generation and stock discovery.
  • Aggregated 'Grand Portfolio' showing combined Superinvestor holdings and ownership statistics.

Unique

  • Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks.
  • Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales.
  • Aggregate Buy–Sell charts to visualize overall insider sentiment.
  • Detailed filing tables with trade/filing dates, transaction codes, prices, quantities, and values, with an integrated code legend.
  • Ability to drill down by sector, industry, ticker, or individual insider profile.
  • CSV export links on lists and insider profile pages for offline use.
Tested

Verified by hands-on testing inside Find My Moat

Yes

Yes

Editor pick

Featured inside curated shortlists

Standard listing

Highlighted

Frequently Asked Questions

Which workflows do DATAROMA and OpenInsider both support?

Both platforms cover Insider Data workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do DATAROMA and OpenInsider require subscriptions?

Both DATAROMA and OpenInsider keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access DATAROMA and OpenInsider?

Both DATAROMA and OpenInsider prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

DATAROMA differentiates itself with Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity., Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals., and Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings., whereas OpenInsider stands out for Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks., Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales., and Aggregate Buy–Sell charts to visualize overall insider sentiment..

Keep exploring

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.

Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.