Tradeweb Markets Inc.
US ˙ NasdaqGS ˙ US8926721064

SecurityTW / Tradeweb Markets Inc.
InstitutionState Street Corp
Latest Disclosed Ownership2,744,804 shares
Latest Disclosed Value $ 322,953,639
State Street Corp reports 1.50% increase in ownership of TW / Tradeweb Markets Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 2,744,804 shares of Tradeweb Markets Inc. (US:TW) valued at $322,953,639 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,704,112 shares of Tradeweb Markets Inc.. This represents a change in shares of 1.50% during the quarter. The current value of the position is $275,660,666 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F TRADEWEB MKTS CL A 892672106 2,744,804 40,692 1.50 322,954 11.06 0.0112
2026-02-13 2025-12-31 13F TRADEWEB MKTS CL A 892672106 2,704,112 24,552 0.92 290,800 -2.21 0.0098
2025-11-14 2025-09-30 13F TRADEWEB MKTS CL A 892672106 2,679,560 55,734 2.12 297,378 -22.58 0.0103
2025-08-14 2025-06-30 13F TRADEWEB MKTS CL A 892672106 2,623,826 61,611 2.40 384,128 0.98 0.0144
2025-05-15 2025-03-31 13F TRADEWEB MKTS CL A 892672106 2,562,215 -16,038 -0.62 380,386 12.67 0.0157
2025-02-14 2024-12-31 13F TRADEWEB MKTS CL A 892672106 2,578,253 18,298 0.71 337,615 6.64 0.0133
2024-11-14 2024-09-30 13F TRADEWEB MKTS CL A 892672106 2,559,955 40,530 1.61 316,590 18.55 0.0129
2024-08-14 2024-06-30 13F TRADEWEB MKTS CL A 892672106 2,519,425 69,192 2.82 267,059 4.63 0.0117
2024-05-15 2024-03-31 13F TRADEWEB MKTS CL A 892672106 2,450,233 24,501 1.01 255,241 15.78 0.0114
2024-02-14 2023-12-31 13F TRADEWEB MKTS CL A 892672106 2,425,732 65,488 2.77 220,451 16.46 0.0107
2023-11-14 2023-09-30 13F TRADEWEB MKTS CL A 892672106 2,360,244 87,372 3.84 189,292 21.62 0.0105
2023-08-14 2023-06-30 13F TRADEWEB MKTS CL A 892672106 2,272,872 -40,671 -1.76 155,646 -14.86 0.0082
2023-05-15 2023-03-31 13F TRADEWEB MKTS CL A 892672106 2,313,543 91,807 4.13 182,816 26.73 0.0103
2023-05-15 2022-12-31 13F/A-99 TRADEWEB MKTS CL A 892672106 2,221,736 -87,055 -3.77 144,257 10.74 0.0085
2023-05-15 2022-12-31 13F TRADEWEB MKTS CL A 892672106 2,221,736 -87,055 144,257 0.0085
2022-11-15 2022-09-30 13F TRADEWEB MKTS CL A 892672106 2,308,791 33,957 1.49 130,262 -16.10 0.0082
2022-08-15 2022-06-30 13F TRADEWEB MKTS CL A 892672106 2,274,834 -52,619 -2.26 155,257 -24.08 0.0093
2022-05-16 2022-03-31 13F TRADEWEB MKTS CL A 892672106 2,327,453 -51,555 -2.17 204,513 -14.15 0.0101
2022-02-14 2021-12-31 13F TRADEWEB MKTS CL A 892672106 2,379,008 -43,244 -1.79 238,234 21.75 0.0113
2021-11-15 2021-09-30 13F TRADEWEB MKTS CL A 892672106 2,422,252 -31,957 -1.30 195,670 -5.71 0.0103
2021-08-16 2021-06-30 13F TRADEWEB MKTS CL A 892672106 2,454,209 532,405 27.70 207,528 45.93 0.0109
2021-07-09 2021-03-31 13F/A-1 TRADEWEB MKTS CL A 892672106 1,921,804 -11,635 -0.60 142,213 17.78 0.0082
2021-05-17 2021-03-31 13F TRADEWEB MKTS CL A 892672106 1,921,804 -11,635 142,213 0.0082
2021-02-16 2020-12-31 13F TRADEWEB MKTS CL A 892672106 1,933,439 90,981 4.94 120,743 12.99 0.0074
2020-11-10 2020-09-30 13F TRADEWEB MKTS CL A 892672106 1,842,458 2,204 0.12 106,863 -0.12 0.0073
2020-08-14 2020-06-30 13F TRADEWEB MKTS CL A 892672106 1,840,254 1,310,227 247.20 106,992 380.17 0.0078
2020-06-19 2020-03-31 13F/A-1 TRADEWEB MKTS CL A 892672106 530,027 7,822 1.50 22,282 -7.94 0.0019
2020-05-11 2020-03-31 13F TRADEWEB MKTS CL A 892672106 530,027 7,822 22,282 1,956.8083
2020-02-06 2019-12-31 13F TRADEWEB MKTS CL A 892672106 522,205 113,549 27.79 24,204 60.16 0.0017
2019-11-14 2019-09-30 13F TRADEWEB MKTS CL A 892672106 408,656 -12,882 -3.06 15,112 -18.17 0.0011
2019-08-14 2019-06-30 13F TRADEWEB MKTS CL A 892672106 421,538 421,538 18,468 0.0014
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.