13F Filing
Quarterly mandatory disclosure that institutional investment managers file with the SEC, listing their US equity holdings.
A 13F filing is a quarterly disclosure required by the U.S. Securities and Exchange Commission (SEC) from institutional investment managers that oversee at least $100 million in qualifying US equity securities. The filing is due within 45 days after quarter end and lists every reportable US security position together with share count, market value and CUSIP identifier.
The form was introduced in 1975 under Section 13(f) of the Securities Exchange Act to create transparency around the activities of large market participants such as hedge funds, asset managers, pension funds, insurance companies and family offices. For retail investors and analysts, the 13F is the most important public source for tracking what stars like Warren Buffett (Berkshire Hathaway), Michael Burry (Scion Asset Management) or Bill Ackman (Pershing Square) are buying and selling.
Important limitations: 13F reports cover only long positions in US-listed equities plus certain options, convertibles and ADRs. Short positions, bonds, commodities, FX and foreign-listed shares are not disclosed. The filing is also lagged by up to 45 days, so the portfolio may already look different by the time it becomes public.
Whaleboard parses 13F filings directly from EDGAR and compares them across quarters, so you can see new positions, additions, reductions and complete sell-offs at a glance.
Related terms
The standard variant of the 13F filing, containing the full list of reportable holdings.
Notice filing in which a manager signals that its holdings are reported in another manager's 13F-HR.
Public online archive of the US Securities and Exchange Commission for all mandatory filings by listed companies and investment managers.
Unique identifier assigned by the SEC to every filer in the EDGAR system.
9-character security identifier for US and Canadian equities, bonds and options.