Filings
13F
A quarterly SEC filing that lists many long U.S. equity positions reported by qualifying institutional investment managers.
What it means
Form 13F is useful for ownership context because it identifies the reporting manager, issuer, shares, reported value, and reporting period. The data comes from SEC EDGAR and is delayed after quarter-end.
Example
A fund reporting AAPL shares on Form 13F is disclosing a quarter-end long position in a covered security.
What not to infer
A 13F is not a complete portfolio, current trading feed, or recommendation.