Tradeweb Markets Inc.
US ˙ NasdaqGS ˙ US8926721064

SecurityTW / Tradeweb Markets Inc.
InstitutionAdvisory Services Network, LLC
Latest Disclosed Ownership1,789 shares
Latest Disclosed Value $ 210,454
Advisory Services Network, LLC ownership in TW / Tradeweb Markets Inc.

On May 15, 2026 - Advisory Services Network, LLC filed a 13F-HR form disclosing ownership of 1,789 shares of Tradeweb Markets Inc. (US:TW) valued at $210,494 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Tradeweb Markets Inc.. The current value of the position is $179,669 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)
2026-05-15 2026-03-31 13F TRADEWEB MARKETS Stock 892672106 1,789 1,789 210 0.0019
2026-02-17 2025-12-31 13F TRADEWEB MKTS Stock 892672106 0 -1,809 -100.00 0 -100.00
2025-11-18 2025-09-30 13F TRADEWEB MKTS Stock 892672106 1,809 -90 -4.74 201 -23.95 0.0029
2025-08-19 2025-06-30 13F TRADEWEB MKTS Stock 892672106 1,899 -8 -0.42 263 -7.07 0.0042
2025-05-15 2025-03-31 13F TRADEWEB MKTS Stock 892672106 1,907 -556 -22.57 283 -12.11 0.0054
2025-02-13 2024-12-31 13F TRADEWEB MKTS Stock 892672106 2,463 17 0.70 322 24.32 0.0060
2024-11-14 2024-09-30 13F TRADEWEB MKTS Stock 892672106 2,446 0 0.00 259 0.00 0.0054
2024-08-13 2024-06-30 13F TRADEWEB MKTS Stock 892672106 2,446 2,446 259 0.0054
2024-05-06 2024-03-31 13F TRADEWEB MKTS Stock 892672106 0 -455 -100.00 0 -100.00
2024-02-09 2023-12-31 13F TRADEWEB MKTS Stock 892672106 455 455 41 0.0010
2023-08-09 2023-06-30 13F TRADEWEB MKTS Stock 892672106 0 -76 -100.00 0 -100.00
2023-05-17 2023-03-31 13F TRADEWEB MKTS Stock 892672106 76 0 0.00 6 50.00 0.0002
2023-02-13 2022-12-31 13F TRADEWEB MKTS Stock 892672106 76 76 5 0.0002
2021-05-24 2021-03-31 13F TRADEWEB MKTS Stock 892672106 0 -42 -100.00 0 -100.00
2021-02-09 2020-12-31 13F TRADEWEB MKTS Stock 892672106 42 42 3 0.0001
2020-05-15 2020-03-31 13F TRADEWEB MKTS Stock 892672106 0 -326 -100.00 0 -100.00
2020-02-04 2019-12-31 13F TRADEWEB MKTS Stock 892672106 326 326 15 0.0008
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.