Microsoft Corporation
A maker of the software and services behind everyday computing, Microsoft builds Windows, Microsoft 365 with its AI helper Copilot, the Azure cloud, Surface devices, Xbox games, LinkedIn, and Dynamics. Founded in 1975 by childhood friends Bill Gates and Paul Allen, its name was coined by Allen as a mash-up of "microcomputer" and "software," originally written with a hyphen as "Micro-Soft." Its first big break came from building a version of the BASIC language for the Altair 8800 hobby computer.
Estimated from filings — the split-adjusted price range over the quarters each manager built the position. A range, not a fill price; 13F reports a quarter-end snapshot, not a trade date.