Tradeweb Markets Inc.
A maker of electronic trading platforms, Tradeweb operates a global electronic marketplace where institutional, wholesale, retail, and corporate clients trade rates, credit, equities, and money markets. It covers the full trade lifecycle, from pre-trade data and analytics to execution through protocols like RFQ and post-trade processing and reporting. The company is a market leader in electronic trading for products including U.S. Treasuries, European government bonds, and global interest rate swaps.
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.