Anyone who acquires more than 5% of a US company's voting shares must file a Schedule 13D or 13G. A 13G is the short form for passive investors such as index funds. A 13D is required when the investor may seek to influence the company — through board seats, a sale or a proxy fight — and its "purpose of transaction" section explains the plan.
Amendments (13D/A, 13G/A) report material changes, including dropping below 5%. The table compares each report with the same holder's previous one where available.
Compiled from public SEC EDGAR data. Times are US Eastern. Titles link to the original filing on sec.gov. Information only — not investment advice. Updated: