Tradeweb Markets Inc. (TW) ownership: Entities affiliated with LSEG 57% · institutions 53% · index and ETF funds 5% (13F 2026-03-31). Insider activity, 90 days: Routine (2 sales, 0 open-market buys). 7 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Vanguard | 11693859.00 | $1.38B | 5.5% | 2026-03-31 |
| Wellington Management | 7504175.00 | $882.94M | 3.5% | 2026-03-31 |
| BlackRock | 6828834.00 | $803.48M | 3.2% | 2026-03-31 |
| T. Rowe Price | 3398763.00 | $399.90M | 1.6% | 2026-03-31 |
| Capital Group | 3128322.00 | $368.08M | 1.5% | 2026-03-31 |
| AQR Capital Management | 2896209.00 | $340.77M | 1.4% | 2026-03-31 |
| Linonia Partnership LP | 2791246.00 | $328.42M | 1.3% | 2026-03-31 |
| State Street | 2744804.00 | $322.95M | 1.3% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-14 | |
| Sell | null | 2026-08-14 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 | |
| Sell | null | 2026-05-19 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.