Big Charts
Interactive charts, quotes, industry indices and analysis, and intraday stock screeners, as well as market news and commentary. Provides historical stock quotes going back to January 1985.
EDGAR Search
Download SEC documents for free.
Forge
Forge Global, formerly known as Equidate, is a leading marketplace for pre-IPO securities. Forge works with mid- to late-stage private startups to facilitate primary and secondary liquidity events for the company and their employees. Search by company name to view current and historical funding rounds and valuations for a select number of pre-IPO private companies.
Investment Adviser Public Disclosure
Search by individual to view that individual’s professional background and conduct, including current registrations, employment history, and disclosures about certain disciplinary events, or search by firm to view the Form ADV (which has information such as assets under management) that the investment adviser filed.
Investopedia: How to Track Upcoming Initial Public Offerings (IPOs)
This Investopedia article defines IPOs and lists some sources for tracking upcoming/recent IPOs.
IPO Calendar
From Renaissance Capital. Lists recent IPOs, along with company profiles, IPO file date, deal size, and other information.
MarketWatch
MarketWatch, published by Dow Jones & Co., tracks the pulse of markets for engaged investors with more than 20 million visitors per month. The site provides business news, personal finance information, real-time commentary, and investment tools and data.
National Archives: Access to Archival Databases (AAD)
Use to search the National Archives database for insider trading from 1978 to 2001.
Rank and Filed
As the site claims: SEC filings for Humans. R&F offers the stock trading history of insiders arranged on a timeline, with specific SEC documents just a click away. The site also provides an influence graph that charts the various companies in which a business’s insiders own shares, one-stop shopping for assets under management, and other goodies–with excellent exporting functions.
SECForm4
Free site with robust summary tables.
SECGems
Search by company or insider’ name–and it’s free..