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Web Applications

EZ-Insider is a web-application providing current and historical Insider Trading data for all U.S. companies and insiders dating back to 1988. Real-time transaction updates show the most recent filings to keep you apprised of new insider activity.

EZ-CorpDox is a full-featured, easy-to-use web-application for searching, displaying, and retrieving SEC EDGAR filings.

D&O Insider Trading Audit Reports is an online application designed to allow underwriters to easily and accurately assess risk related to directors’ and officers’ stock trades at their respective companies.

Data Feeds

Our Insider Data Feeds are sourced from SEC Form 4, Form 5, and Form 144. Staff at WS analyze and interpret all filings: correcting filer inconsistencies, normalizing data points, and tagging field values with unique identifiers.

EDGAR Feeds contain mirror copies of official SEC filings. The Washington Service maintains multiple channels to the SEC to ensure we receive documents with minimum latency.

Our Institutional Ownership Data updates quarterly, when institutional investment managers that manage at least $100 million file 13F filings with the SEC. 


The Insider Trading API allows clients to access up-to-the-minute Form 4 and Form 144 data derived from ownership filings made with the SEC.

Equity Planner API is a Form 4 and Form 144 API geared towards wealth managers and corporate equity planners. This API provides a historical data depth of three years and is updated in real-time. 

Our Delinquent Filer Notification API allows clients to establish a watchlist of companies to monitor for delinquency based on the timeliness of their quarterly and annual filings. The companies are monitored in real-time, based upon EDGAR filings released by the SEC.


Insider on Snowflake provides access to live and ready-to-use Form 4/5 and Form 144 data with intraday updates within three minutes of filing.

A comprehensive database of Rule 10b5-1 plans with plan information derived from Form 144, Form 4/5, and corporate documents like 10-Qs, 10-Ks, etc.

Custom Reporting

Web Crawling provides customized Internet-based channel check applications to collect publicly available data from research, social media, and corporate websites.

Custom Research covers a wide array of topics that may include crafting bespoke insider trading projects, securities regulation inquiries, or unique corporate filings research.

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