Institutional 13F filings
Investment managers with over $100 million in US equities must report their long positions on Form 13F within 45 days after each quarter ends. What is a 13F?
Holders of 5% or more of a company report within days on Schedule 13D or 13G, much sooner than 13F: latest 13D and 13G filings.
Latest 13F filings
Newest first. An amendment moves that quarter back to the top.