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Tradeweb Markets Inc.

Security & Commodity Brokers, Dealers, Exchanges & Services · SIC 6200CIK 1758730Held by 8 tracked managersEDGAR filings ↗10-K/10-Q ↗

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8 managers · Q2 2026 13F

13F bookWeight

Praesidium Investment Management Company

Praesidium Investment Management CompanyPosition history →

2.7%

(74.3%)

$5.7M

$0.21B13F book · 2026-06-30

Kensico Capital Management

Kensico Capital ManagementPosition history →

1.7%

(0.3%)

$100.1M

$5.83B13F book · 2026-06-30

Cantillon Capital Management

William Von MuefflingPosition history →

1.6%

(95.4%)

$10.9M

$0.67B13F book · 2026-06-30

Torray Funds

TorrayPosition history →

1.0%

(0.1%)

$7.6M

$0.74B13F book · 2026-06-30

Viking Global Investors

Andreas HalvorsenPosition history →

0.09%

NEW

$31.3M

$35.08B13F book · 2026-06-30

Holocene Advisors

Holocene AdvisorsPosition history →

0.05%

NEW

$22.7M

$43.69B13F book · 2026-06-30

Renaissance Technologies

Renaissance TechnologiesPosition history →

0.04%

(26.1%)

$30.1M

$72.62B13F book · 2026-06-30

Capital World Investors

Capital World InvestorsPosition history →

0.03%

+5.2%

$230.6M

$846.43B13F book · 2026-06-30

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.