VOL. XCIV, NO. 247

★ A CURATED DIRECTORY OF FINANCIAL TOOLS ★

PRICE: 5 CENTS

Saturday, December 13, 2025

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Tool Comparison

Insider Monitor vs OpenInsider comparison

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

Quick takeaways

OpenInsider includes Screeners, and Data Visualizations categories that Insider Monitor omits.

In depth comparison

Insider Monitor logo

Insider Monitor

insider-monitor.com

Free, U.S.-focused insider‑trading tracker centered on SEC Forms 3/4/5. Provides near‑real‑time (‘minutes or seconds’ after filing) feeds of insider purchases/sales, weekly/monthly Top‑10 lists, and “officer cluster buys” over the past two weeks. Includes company and trader pages with CIK cross‑references and direct links to the SEC for each transaction. No login, alerts, or API are advertised; this is a lightweight, public reference site.

Platforms

Web

Pricing

Free

Quick highlights

  • Real‑time insider tape: lists purchases (or buys & sales) with filing time stamps and SEC links; updated live throughout the day.
  • Officer Cluster Buys: highlights tickers bought by multiple corporate officers in the last two weeks.
  • Top‑10 lists: weekly and monthly leaderboards of the largest insider purchases.
  • Industry lens: aggregates Form 4 filing counts by high‑level industry divisions since 2020.
  • Company & trader dossiers: symbol/issuer pages and insider pages with year/month summaries and per‑trade details, including CIK references and SEC source links.

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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

OpenInsider

Distinct strengths include:

ScreenersData 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

AttributeInsider MonitorOpenInsider
Categories

Which research workflows each platform targets

Shared: Insider Data, Regulatory Filings Monitoring

Shared: Insider Data, Regulatory Filings Monitoring

Unique: Screeners, Data Visualizations

Asset types

Supported asset classes and universes

Stocks, Closed-End Funds

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

  • Real‑time insider tape: lists purchases (or buys & sales) with filing time stamps and SEC links; updated live throughout the day.
  • Officer Cluster Buys: highlights tickers bought by multiple corporate officers in the last two weeks.
  • Top‑10 lists: weekly and monthly leaderboards of the largest insider purchases.
  • Industry lens: aggregates Form 4 filing counts by high‑level industry divisions since 2020.
  • Company & trader dossiers: symbol/issuer pages and insider pages with year/month summaries and per‑trade details, including CIK references and SEC source links.

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

Not yet

Yes

Editor pick

Featured inside curated shortlists

Standard listing

Highlighted

Frequently Asked Questions

Which workflows do Insider Monitor and OpenInsider both support?

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

Do Insider Monitor and OpenInsider require subscriptions?

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

How can you access Insider Monitor and OpenInsider?

Both Insider Monitor 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?

Insider Monitor differentiates itself with Real‑time insider tape: lists purchases (or buys & sales) with filing time stamps and SEC links; updated live throughout the day., Officer Cluster Buys: highlights tickers bought by multiple corporate officers in the last two weeks., and Top‑10 lists: weekly and monthly leaderboards of the largest insider purchases., 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.

Recommended tools

These profiles share overlapping coverage with both sides of this matchup.

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.