Who owns Tradeweb Markets Inc, from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
Wellington Management Group LLP: 5.3% · 6,204,054 shares — Wellington Group Holdings LLP: 5.3% · 6,204,054 shares — Wellington Investment Advisors Holdings LLP: 5.3% · 6,204,054 shares
Vanguard Portfolio Management: 5.2% · 6,071,791 shares
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Sign up freeEvery institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Tradeweb Markets Inc they hold. Together these 709 managers report 63.29% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| PRICE T ROWE ASSOCIATES INC /MD/ | $1.63B | 16,376,924 | 0.16% | 7.71% | June 30, 2026 |
| VANGUARD GROUP INC | $1.29B | 11,955,735 | 0.02% | 5.63% | December 31, 2025 |
707 more institutional holders behind a free account
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together the 500 largest funds we checked hold 21.21% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND | $367M | 0.02% | 1.73% | June 30, 2026 |
| Growth Fund of America | $271M | 0.08% | 1.27% | May 31, 2026 |
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