Data Explorer

Look up a company to see who owns it, or an investor to see what it holds. Answers come back instantly — no data request needed. The data cover 2000 Q4 – 2020 Q4, quarterly.

Company and investor names are matched anywhere in the name, and former names still match — searching “apple computer” finds the company filing under its current name.

These pages are for looking up individual companies and investors. Please don’t copy them with automated tools. If you need the full data, request a download: it is free of charge for academic research.