TW

SEC source: 0001567619-20-001311 · doc1.xml · derivative · entry 6

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,232

Underlying: Class A common stock · 2,292 shares

Expires 2028-10-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F5 · derivative.exercise_date: This option is fully vested and exercisable as of the date hereof.

SEC source: 0001567619-20-001311 · doc1.xml · nonDerivative · entry 4

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,510

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.47 to $46.29, inclusive.

F2 · balance_after: This amount includes 22,868 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 19,642 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001311 · doc1.xml · nonDerivative · entry 3

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,802

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F2 · balance_after: This amount includes 22,868 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 19,642 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001314 · doc1.xml · derivative · entry 8

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 317,704

Underlying: Class A common stock · 14,420 shares

Expires 2028-10-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F7 · derivative.exercise_date: This option is fully vested and exercisable as of the date hereof.

SEC source: 0001567619-20-001314 · doc1.xml · nonDerivative · entry 2

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,984

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F3 · price: 3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.11 to $45.90, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 3, 4, 5 and 6 to this Form 4.

F2 · balance_after: This amount includes 24,629 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 30,355 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001314 · doc1.xml · nonDerivative · entry 1

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,404

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F2 · balance_after: This amount includes 24,629 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 30,355 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001315 · doc1.xml · derivative · entry 6

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 153,522

Underlying: Class A common stock · 12,540 shares

Expires 2028-10-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F6 · derivative.exercise_date: This option is fully vested and exercisable as of the date hereof.

SEC source: 0001567619-20-001315 · doc1.xml · nonDerivative · entry 2

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,295

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.10 to $45.90, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 3, 4 and 5 to this Form 4.

F2 · balance_after: This amount includes 22,868 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 21,427 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001315 · doc1.xml · nonDerivative · entry 1

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,835

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F2 · balance_after: This amount includes 22,868 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 21,427 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001313 · doc1.xml · derivative · entry 16

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 323,814

Underlying: Class A common stock · 14,350 shares

Expires 2028-10-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F12 · derivative.exercise_date: This option is fully vested and exercisable as of the date hereof.

F4 · ownership.nature: The reporting person owns these securities through The Lee Olesky 2019 Family Trust U/A/D March 21, 2019 ("The Family Trust"). The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-20-001313 · doc1.xml · derivative · entry 15

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,874,512

Underlying: Class A common stock · 14,377 shares

Expires 2028-10-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F12 · derivative.exercise_date: This option is fully vested and exercisable as of the date hereof.

SEC source: 0001567619-20-001313 · doc1.xml · nonDerivative · entry 4

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.17 to $45.90, inclusive.

F4 · ownership.nature: The reporting person owns these securities through The Lee Olesky 2019 Family Trust U/A/D March 21, 2019 ("The Family Trust"). The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-20-001313 · doc1.xml · nonDerivative · entry 3

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 14,350

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F4 · ownership.nature: The reporting person owns these securities through The Lee Olesky 2019 Family Trust U/A/D March 21, 2019 ("The Family Trust"). The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-20-001313 · doc1.xml · nonDerivative · entry 2

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 418,948

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.10 to $45.90, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 3, 5, 6, 7, 8, 9, 10 and 11 to this Form 4.

F2 · balance_after: This amount includes 207,713 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 191,235 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001313 · doc1.xml · nonDerivative · entry 1

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 433,325

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F2 · balance_after: This amount includes 207,713 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 191,235 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001312 · doc1.xml · derivative · entry 6

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,082,601

Underlying: Class A common stock · 14,391 shares

Expires 2028-10-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F6 · derivative.exercise_date: This option is fully vested and exercisable as of the date hereof.

SEC source: 0001567619-20-001312 · doc1.xml · nonDerivative · entry 2

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 344,544

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.12 to $45.90, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 3, 4 and 5 to this Form 4.

F2 · balance_after: This amount includes 173,181 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 159,363 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001312 · doc1.xml · nonDerivative · entry 1

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 358,935

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F2 · balance_after: This amount includes 173,181 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 159,363 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001311 · doc1.xml · derivative · entry 5

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,524

Underlying: Class A common stock · 12,635 shares

Expires 2028-10-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F5 · derivative.exercise_date: This option is fully vested and exercisable as of the date hereof.

SEC source: 0001567619-20-001311 · doc1.xml · nonDerivative · entry 2

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,510

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.12 to $45.90, inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes 3 and 4 to this Form 4.

F2 · balance_after: This amount includes 22,868 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 19,642 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-20-001311 · doc1.xml · nonDerivative · entry 1

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,145

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2019.

F2 · balance_after: This amount includes 22,868 unvested restricted stock units in respect of the issuer's Class A common stock ("RSUs") which are scheduled to vest on January 1, 2021, subject to the reporting person's continued employment through the vesting date. This amount also includes 19,642 vested RSUs which will be settled on February 3, 2020.

SEC source: 0001567619-19-021694 · doc1.xml · derivative · entry 2

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 5,119 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-021694 · doc1.xml · derivative · entry 1

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class C common stock · 5,119 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-021691 · doc1.xml · derivative · entry 2

Maisey Simon · CIK 0001771402 · Managing Director, Corp. Dev.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 1,726 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-021691 · doc1.xml · derivative · entry 1

Maisey Simon · CIK 0001771402 · Managing Director, Corp. Dev.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class C common stock · 1,726 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-021695 · doc1.xml · derivative · entry 2

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 5,655 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-021695 · doc1.xml · derivative · entry 1

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class C common stock · 5,655 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-021693 · doc1.xml · derivative · entry 2

Spencer James · CIK 0001771296 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,133

Underlying: Class A common stock · 4,566 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-021693 · doc1.xml · derivative · entry 1

Spencer James · CIK 0001771296 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,133

Underlying: Class C common stock · 4,566 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-021692 · doc1.xml · derivative · entry 2

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class A common stock · 27,194 shares

Expires not disclosed

F4 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F4 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F4 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · ownership.nature: The reported shares of Class D Common Stock and LLC Units are owned through The Lee Olesky 2019 Family Trust U/A/D March 21, 2019 ("The Family Trust"). The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-19-021692 · doc1.xml · derivative · entry 1

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

Underlying: Class C common stock · 27,194 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F3 · ownership.nature: The reported shares of Class D Common Stock and LLC Units are owned through The Lee Olesky 2019 Family Trust U/A/D March 21, 2019 ("The Family Trust"). The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-19-021690 · doc1.xml · nonDerivative · entry 1

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 344,543

F1 · price: This amount represents the $42.00 price at which the issuer's shares of Class A common stock (the "Class A Common Stock") were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share.

F2 · balance_after: This amount includes 332,543 unvested restricted stock units in respect of the issuer's Class A Common Stock. Subject to the reporting person's continued employment through each vesting date, these restricted stock units are scheduled to vest as follows: (i) 159,362 restricted stock units will vest on January 1, 2020 and (ii) 173,181 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-021689 · doc1.xml · nonDerivative · entry 1

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,508

F1 · price: This amount represents the $42.00 price at which the issuer's shares of Class A common stock (the "Class A Common Stock") were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share.

F2 · balance_after: This amount includes 42,508 unvested restricted stock units in respect of the issuer's Class A Common Stock. Subject to the reporting person's continued employment through each vesting date, these restricted stock units are scheduled to vest as follows: (i) 19,641 restricted stock units will vest on January 1, 2020 and (ii) 22,867 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-021688 · doc1.xml · derivative · entry 2

Bruni Enrico · CIK 0001771187 · Managing Director, Europe/Asia

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,812

Underlying: Class A common stock · 5,871 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-021688 · doc1.xml · derivative · entry 1

Bruni Enrico · CIK 0001771187 · Managing Director, Europe/Asia

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,812

Underlying: Class C common stock · 5,871 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-019888 · doc1.xml · derivative · entry 2

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,119

Underlying: Class A common stock · 34,124 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-019888 · doc1.xml · derivative · entry 1

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,119

Underlying: Class C common stock · 34,124 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-019886 · doc1.xml · derivative · entry 2

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 27,194

Underlying: Class A common stock · 181,293 shares

Expires not disclosed

F4 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F4 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F4 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · ownership.nature: The reported shares of Class D Common Stock and LLC Units are owned through The Lee Olesky 2019 Family Trust U/A/D March 21, 2019 ("The Family Trust"). The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-19-019886 · doc1.xml · derivative · entry 1

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 27,194

Underlying: Class C common stock · 181,293 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F3 · ownership.nature: The reported shares of Class D Common Stock and LLC Units are owned through The Lee Olesky 2019 Family Trust U/A/D March 21, 2019 ("The Family Trust"). The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-19-019883 · doc1.xml · derivative · entry 3

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 19,400 shares

Expires not disclosed

F5 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 3 to this Form 4) will be canceled. These exchange rights do not expire.

F4 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which the issuer's Class A Common Stock was sold in the Public Offering, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F4 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which the issuer's Class A Common Stock was sold in the Public Offering, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F5 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 3 to this Form 4) will be canceled. These exchange rights do not expire.

F5 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 3 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-019883 · doc1.xml · derivative · entry 2

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class C common stock · 19,400 shares

Expires not disclosed

F3 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F4 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which the issuer's Class A Common Stock was sold in the Public Offering, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F4 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which the issuer's Class A Common Stock was sold in the Public Offering, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F3 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-019883 · doc1.xml · nonDerivative · entry 1

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,718

F1 · price: This amount represents the $42.00 price at which the issuer's shares of Class A common stock (the "Class A Common Stock") were sold in a public offering of the Class A Common Stock (the "Public Offering"), less the underwriters' discount of $1.26 per share.

F2 · balance_after: This amount includes 42,508 unvested restricted stock units in respect of the issuer's Class A Common Stock. Subject to the reporting person's continued employment through each vesting date, these restricted stock units are scheduled to vest as follows: (i) 19,641 restricted stock units will vest on January 1, 2020 and (ii) 22,867 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-019889 · doc1.xml · derivative · entry 2

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,655

Underlying: Class A common stock · 37,698 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-019889 · doc1.xml · derivative · entry 1

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,655

Underlying: Class C common stock · 37,698 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-019887 · doc1.xml · derivative · entry 2

Spencer James · CIK 0001771296 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,699

Underlying: Class A common stock · 30,434 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-019887 · doc1.xml · derivative · entry 1

Spencer James · CIK 0001771296 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,699

Underlying: Class C common stock · 30,434 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-019885 · doc1.xml · derivative · entry 2

Maisey Simon · CIK 0001771402 · Managing Director, Corp. Dev.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,726

Underlying: Class A common stock · 11,505 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

F3 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 1 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-019885 · doc1.xml · derivative · entry 1

Maisey Simon · CIK 0001771402 · Managing Director, Corp. Dev.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,726

Underlying: Class C common stock · 11,505 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F2 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F2 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which shares of Class A common stock ("Class A Common Stock") of the issuer were sold in a public offering of the Class A Common Stock, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F1 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F1 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

SEC source: 0001567619-19-019884 · doc1.xml · derivative · entry 3

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 69,181 shares

Expires not disclosed

F5 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 3 to this Form 4) will be canceled. These exchange rights do not expire.

F4 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which the issuer's Class A Common Stock was sold in the Public Offering, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F4 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which the issuer's Class A Common Stock was sold in the Public Offering, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F5 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 3 to this Form 4) will be canceled. These exchange rights do not expire.

F5 · derivative.expiration_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, LLC Units may be exchanged for shares of Class A Common Stock or Class B common stock of the issuer, in each case, on a one-for-one basis at the discretion of the holder. Upon such an exchange, a corresponding number of shares of Class D Common Stock (or shares of Class C Common Stock, in the event the reporting person exchanged their shares of Class D Common Stock as described in footnote 3 to this Form 4) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-019884 · doc1.xml · derivative · entry 2

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class C common stock · 69,181 shares

Expires not disclosed

F3 · derivative.exercise_price: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F4 · kind: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which the issuer's Class A Common Stock was sold in the Public Offering, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F4 · price: The reporting person sold to the issuer the number of LLC Units set forth above at a price per LLC Unit of $40.74, which represents the $42.00 price at which the issuer's Class A Common Stock was sold in the Public Offering, less the underwriters' discount of $1.26 per share. The corresponding number of shares of Class D Common Stock along with the exchange rights thereunder were canceled in their entirety in connection with the sale of the LLC Units.

F3 · derivative.exercise_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.

F3 · derivative.expiration_date: Shares of Class D common stock of the issuer ("Class D Common Stock") have ten votes per share but no economic rights (including rights to dividends or, other than their par value, any distribution upon liquidation) and are issued in an equal amount to the number of non-voting common units of Tradeweb Markets LLC, a subsidiary of the issuer ("LLC Units"), held. Shares of Class D Common Stock are exchangeable for shares of the issuer's Class C common stock ("Class C Common Stock"), which have one vote per share but no economic rights (other than their par value upon liquidation), on a one-for-one basis at the discretion of the holder. These exchange rights do not expire.