Tradeweb Markets Inc.
US ˙ NasdaqGS ˙ US8926721064

SecurityTW / Tradeweb Markets Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership670,719 shares
Latest Disclosed Value $ 78,916,798
Northern Trust Corp reports 1.32% increase in ownership of TW / Tradeweb Markets Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 670,719 shares of Tradeweb Markets Inc. (US:TW) valued at $78,916,798 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 661,961 shares of Tradeweb Markets Inc.. This represents a change in shares of 1.32% during the quarter. The current value of the position is $67,474,331 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.

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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)
2026-05-14 2026-03-31 13F TRADEWEB MKTS CL A 892672106 670,719 8,758 1.32 78,917 10.86 0.0104
2026-02-17 2025-12-31 13F TRADEWEB MKTS CL A 892672106 661,961 -3,276 -0.49 71,187 -3.58 0.0091
2025-11-14 2025-09-30 13F TRADEWEB MKTS CL A 892672106 665,237 -16,489 -2.42 73,828 -26.03 0.0094
2025-08-13 2025-06-30 13F TRADEWEB MKTS CL A 892672106 681,726 -14,596 -2.10 99,805 -3.45 0.0137
2025-05-13 2025-03-31 13F TRADEWEB MKTS CL A 892672106 696,322 -9,550 -1.35 103,376 11.86 0.0153
2025-02-14 2024-12-31 13F TRADEWEB MKTS CL A 892672106 705,872 90,859 14.77 92,413 21.50 0.0131
2024-11-13 2024-09-30 13F TRADEWEB MKTS COM 892672106 615,013 -27,710 -4.31 76,059 11.64 0.0125
2024-08-14 2024-06-30 13F TRADEWEB MKTS COM 892672106 642,723 29,870 4.87 68,129 6.72 0.0115
2024-05-14 2024-03-31 13F TRADEWEB MKTS COM 892672106 612,853 -24,054 -3.78 63,841 10.29 0.0110
2024-02-13 2023-12-31 13F TRADEWEB MKTS COM 892672106 636,907 -18,907 -2.88 57,882 10.05 0.0105
2023-11-13 2023-09-30 13F TRADEWEB MKTS COM 892672106 655,814 50,995 8.43 52,596 26.99 0.0102
2023-08-11 2023-06-30 13F TRADEWEB MKTS COM 892672106 604,819 -11,011 -1.79 41,418 -14.89 0.0080
2023-05-15 2023-03-31 13F TRADEWEB MKTS COM 892672106 615,830 -8,721 -1.40 48,663 20.00 0.0096
2023-02-13 2022-12-31 13F TRADEWEB MKTS COM 892672106 624,551 40,097 6.86 40,552 22.98 0.0085
2022-11-14 2022-09-30 13F TRADEWEB MKTS COM 892672106 584,454 -483 -0.08 32,974 -17.40 0.0075
2022-08-12 2022-06-30 13F TRADEWEB MKTS COM 892672106 584,937 6,041 1.04 39,922 -21.52 0.0086
2022-05-13 2022-03-31 13F TRADEWEB MKTS COM 892672106 578,896 -41,796 -6.73 50,868 -18.16 0.0089
2022-02-08 2021-12-31 13F TRADEWEB MKTS COM 892672106 620,692 -61,460 -9.01 62,157 12.80 0.0102
2021-11-15 2021-09-30 13F TRADEWEB MKTS COM 892672106 682,152 25,878 3.94 55,104 -0.70 0.0098
2021-08-13 2021-06-30 13F TRADEWEB MKTS CL A 892672106 656,274 38,244 6.19 55,494 21.34 0.0098
2021-05-12 2021-03-31 13F TRADEWEB MKTS CL A 892672106 618,030 -19,418 -3.05 45,734 14.89 0.0085
2021-02-11 2020-12-31 13F TRADEWEB MKTS CL A 892672106 637,448 9,692 1.54 39,808 9.33 0.0078
2020-11-16 2020-09-30 13F TRADEWEB MKTS CL A 892672106 627,756 68,831 12.31 36,410 12.04 0.0080
2020-08-14 2020-06-30 13F TRADEWEB MKTS COM 892672106 558,925 402,530 257.38 32,496 394.31 0.0077
2020-05-14 2020-03-31 13F TRADEWEB MKTS COM 892672106 156,395 9,678 6.60 6,574 -3.32 0.0019
2020-02-14 2019-12-31 13F TRADEWEB MKTS COM 892672106 146,717 56,614 62.83 6,800 104.08 0.0015
2019-11-13 2019-09-30 13F TRADEWEB MKTS COM 892672106 90,103 -1,311 -1.43 3,332 -16.80 0.0008
2019-08-13 2019-06-30 13F TRADEWEB MKTS COM 892672106 91,414 91,414 4,005 0.0010
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.