VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View OpenInsiderView PCAOB AuditorSearchBack to Home

Head-to-head

OpenInsider vs PCAOB AuditorSearch comparison

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

Quick takeaways

OpenInsider adds Screeners, Insider Data, and Data Visualizations coverage that PCAOB AuditorSearch skips.

OpenInsider 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., and Aggregate Buy–Sell charts to visualize overall insider sentiment..

PCAOB AuditorSearch is known for: Searchable by engagement partner, audit firm, or public company, with support for company name, CIK, ticker, and firm identifiers., Displays engagement partner details, audit firm name and location, and the extent of participation of other firms., and Bulk dataset download in CSV format, updated daily. The file includes all Form AP data fields documented in the dictionary, with timestamps in Eastern Time..

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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PCAOB AuditorSearch logo

PCAOB AuditorSearch

pcaobus.org

Free public database built from Form AP filings. Users can search audit engagements by company, firm, or partner, or download the full dataset as a CSV file updated daily. Bulk downloads are timestamped in Eastern Time and do not include the ticker field.

Platforms

Web

Pricing

Free

Quick highlights

  • Searchable by engagement partner, audit firm, or public company, with support for company name, CIK, ticker, and firm identifiers.
  • Displays engagement partner details, audit firm name and location, and the extent of participation of other firms.
  • Bulk dataset download in CSV format, updated daily. The file includes all Form AP data fields documented in the dictionary, with timestamps in Eastern Time.
  • Form AP filings are required for each audit of a public company, forming the core of the database.
  • Advanced search tools and a contact form are available for deeper queries and user support.

Community votes (overall)

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Overlap

Shared focus areas

1 overlap

Both tools cover this research theme.

Where they differ

OpenInsider

Distinct strengths include:

Screeners
Insider Data
Data 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

AttributeOpenInsiderPCAOB AuditorSearch
Categories

Which research workflows each platform targets

Shared: Regulatory Filings Monitoring

Unique: Screeners, Insider Data, Data Visualizations

Shared: Regulatory Filings Monitoring

Asset types

Supported asset classes and universes

Stocks

Other

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 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.

Unique

  • Searchable by engagement partner, audit firm, or public company, with support for company name, CIK, ticker, and firm identifiers.
  • Displays engagement partner details, audit firm name and location, and the extent of participation of other firms.
  • Bulk dataset download in CSV format, updated daily. The file includes all Form AP data fields documented in the dictionary, with timestamps in Eastern Time.
  • Form AP filings are required for each audit of a public company, forming the core of the database.
  • Advanced search tools and a contact form are available for deeper queries and user support.
Tested

Verified by hands-on testing inside Find My Moat

Yes

Not yet

Editor pick

Featured inside curated shortlists

Highlighted

Standard listing

Frequently Asked Questions

Which workflows do OpenInsider and PCAOB AuditorSearch both support?

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

Do OpenInsider and PCAOB AuditorSearch require subscriptions?

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

How can you access OpenInsider and PCAOB AuditorSearch?

Both OpenInsider and PCAOB AuditorSearch 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?

OpenInsider differentiates itself with 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., whereas PCAOB AuditorSearch stands out for Searchable by engagement partner, audit firm, or public company, with support for company name, CIK, ticker, and firm identifiers., Displays engagement partner details, audit firm name and location, and the extent of participation of other firms., and Bulk dataset download in CSV format, updated daily. The file includes all Form AP data fields documented in the dictionary, with timestamps in Eastern Time..

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Stay on top of related tools

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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.