Tradeweb Markets Inc.
US ˙ NasdaqGS ˙ US8926721064

SecurityTW / Tradeweb Markets Inc.
InstitutionCALVERT VARIABLE SERIES INC - Calvert VP SRI Mid Cap Portfolio
Latest Disclosed Ownership3,374 shares
Latest Disclosed Value $ 493,953
CALVERT VARIABLE SERIES INC - Calvert VP SRI Mid Cap Portfolio reports 36.65% decrease in ownership of TW / Tradeweb Markets Inc.

On August 25, 2025 - CALVERT VARIABLE SERIES INC - Calvert VP SRI Mid Cap Portfolio filed a NPORT-P form disclosing ownership of 3,374 shares of Tradeweb Markets Inc. (US:TW) valued at $493,954 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 5,326 shares of Tradeweb Markets Inc.. This represents a change in shares of -36.65% during the quarter. The current value of the position is $338,851 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)
2025-08-25 2025-06-30 NP Tradeweb Markets EC US8926721064 3,374 -1,952 -36.65 494 -37.59 2.0822
2025-05-28 2025-03-31 NP Tradeweb Markets EC US8926721064 5,326 -698 -11.59 791 0.25 3.2100
2025-02-19 2024-12-31 NP Tradeweb Markets EC US8926721064 6,024 -543 -8.27 789 -2.96 3.0984
2024-11-27 2024-09-30 NP Tradeweb Markets EC US8926721064 6,567 0 0.00 812 16.67 3.0785
2024-08-20 2024-06-30 NP Tradeweb Markets EC US8926721064 6,567 0 0.00 696 1.75 2.8067
2024-05-28 2024-03-31 NP Tradeweb Markets EC US8926721064 6,567 0 0.00 684 14.77 2.5513
2024-02-02 2023-12-31 NP Tradeweb Markets EC US8926721064 6,567 0 0.00 597 13.31 2.3095
2023-11-29 2023-09-30 NP Tradeweb Markets EC US8926721064 6,567 248 3.92 527 21.76 2.1938
2023-08-22 2023-06-30 NP Tradeweb Markets EC US8926721064 6,319 -214 -3.28 433 -16.28 1.6424
2023-05-26 2023-03-31 NP Tradeweb Markets EC US8926721064 6,533 0 0.00 516 21.70 1.9423
2023-03-01 2022-12-31 NP Tradeweb Markets EC US8926721064 6,533 913 16.25 424 33.75 1.6267
2022-11-28 2022-09-30 NP Tradeweb Markets EC US8926721064 5,620 0 0.00 317 -17.23 1.2924
2022-08-22 2022-06-30 NP Tradeweb Markets EC US8926721064 5,620 -2,368 -29.64 384 -45.36 1.4535
2022-05-27 2022-03-31 NP Tradeweb Markets EC US8926721064 7,988 296 3.85 702 -8.96 2.1585
2022-02-28 2021-12-31 NP Tradeweb Markets EC US8926721064 7,692 -1,518 -16.48 770 3.63 2.0867
2021-11-24 2021-09-30 NP Tradeweb Markets EC US8926721064 9,210 0 0.00 744 -4.50 2.0546
2021-08-19 2021-06-30 NP Tradeweb Markets EC US8926721064 9,210 -783 -7.84 779 5.28 2.0959
2021-05-28 2021-03-31 NP Tradeweb Markets EC US8926721064 9,993 -1,230 -10.96 739 5.57 2.0555
2021-02-16 2020-12-31 NP Tradeweb Markets EC US8926721064 11,223 2,736 32.24 701 42.28 1.9546
2020-11-25 2020-09-30 NP Tradeweb Markets EC US8926721064 8,487 1,013 13.55 492 13.36 1.5407
2020-08-24 2020-06-30 NP Tradeweb Markets EC US8926721064 7,474 1,166 18.48 435 63.77 1.4088
2020-05-29 2020-03-31 NP Tradeweb Markets EC US8926721064 6,308 -2,804 -30.77 265 -37.20 0.9962
2020-02-24 2019-12-31 NP Tradeweb Markets EC 892672106 9,112 4,090 81.44 422 128.11 1.1720
2019-11-27 2019-09-30 NP Tradeweb Markets EC US8926721064 5,022 5,022 186 0.5181
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.