TW

SEC source: 0001567619-19-019884 · doc1.xml · nonDerivative · entry 1

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 358,809

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 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: 0001567619-19-019882 · doc1.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,683

Underlying: Class A common stock · 39,130 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: 0001567619-19-019882 · doc1.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,683

Underlying: Class C common stock · 39,130 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: 0001567619-19-019737 · doc1.xml · derivative · entry 3

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,096,993

Underlying: Class A common stock · 167,500 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.

F2 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 2,264,493 shares of Class A Common Stock, which option is vested as to 1,811,595 of the shares subject thereto as of the date hereof (including the 167,500 shares underlying the portion of the stock option being exercised). The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

SEC source: 0001567619-19-019737 · doc1.xml · nonDerivative · entry 2

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 384,731

F1 · balance_after: This amount includes 332,543 unvested restricted stock units in respect of the issuer's Class A common stock ("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: 0001567619-19-019737 · doc1.xml · nonDerivative · entry 1

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 512,043

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 · balance_after: This amount includes 332,543 unvested restricted stock units in respect of the issuer's Class A common stock ("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: 0001567619-19-019734 · doc1.xml · derivative · entry 3

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 161,159

Underlying: Class A common stock · 20,000 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.

F2 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 181,159 shares of Class A Common Stock, which option is vested as to 144,928 of the shares subject thereto as of the date hereof (including the 20,000 shares underlying the portion of the stock option being exercised). The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

F2 · balance_after: On October 26, 2018, the reporting person was granted an option to purchase 181,159 shares of Class A Common Stock, which option is vested as to 144,928 of the shares subject thereto as of the date hereof (including the 20,000 shares underlying the portion of the stock option being exercised). The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

SEC source: 0001567619-19-019734 · doc1.xml · nonDerivative · entry 2

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,713

F1 · balance_after: This amount includes 42,508 unvested restricted stock units in respect of the issuer's Class A common stock ("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: 0001567619-19-019734 · doc1.xml · nonDerivative · entry 1

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,508

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 · balance_after: This amount includes 42,508 unvested restricted stock units in respect of the issuer's Class A common stock ("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: 0001567619-19-008528 · doc1.xml · nonDerivative · entry 1

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,983

F1 · shares: The reporting person purchased these shares in connection with the closing of the initial public offering of the issuer (the "IPO") at the IPO price of $27.00 per share pursuant to the directed share program described in the issuer's registration statement. The shares are subject to a lock-up provision for a period of 180 days, as required under a lock-up agreement with the underwriters of the IPO.

F2 · balance_after: This amount includes 54,983 unvested restricted stock units in respect of the issuer's Class A common stock ("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) 30,355 restricted stock units will vest on January 1, 2020, and (ii) 24,628 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-008538 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 104,358

F1 · shares: The reporting person purchased these shares in connection with the closing of the initial public offering of the issuer (the "IPO") at the IPO price of $27.00 per share pursuant to the directed share program described in the issuer's registration statement. The shares are subject to a lock-up provision for a period of 180 days, as required under a lock-up agreement with the underwriters of the IPO.

F2 · balance_after: This amount includes 74,358 unvested restricted stock units in respect of the issuer's Class A common stock ("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) 32,140 restricted stock units will vest on January 1, 2020, and (ii) 42,218 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-008537 · doc1.xml · nonDerivative · entry 1

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,294

F1 · shares: The reporting person purchased these shares in connection with the closing of the initial public offering of the issuer (the "IPO") at the IPO price of $27.00 per share pursuant to the directed share program described in the issuer's registration statement. The shares are subject to a lock-up provision for a period of 180 days, as required under a lock-up agreement with the underwriters of the IPO.

F2 · balance_after: This amount includes 44,294 unvested restricted stock units in respect of the issuer's Class A common stock ("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) 21,427 restricted stock units will vest on January 1, 2020, and (ii) 22,867 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-008534 · doc1.xml · nonDerivative · entry 1

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 344,543

F1 · shares: The reporting person purchased these shares in connection with the closing of the initial public offering of the issuer (the "IPO") at the IPO price of $27.00 per share pursuant to the directed share program described in the issuer's registration statement. The shares are subject to a lock-up provision for a period of 180 days, as required under a lock-up agreement with the underwriters of the IPO.

F2 · balance_after: This amount includes 332,543 unvested restricted stock units in respect of the issuer's Class A common stock ("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: 0001567619-19-008536 · 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 · shares: The reporting person purchased these shares in connection with the closing of the initial public offering of the issuer (the "IPO") at the IPO price of $27.00 per share pursuant to the directed share program described in the issuer's registration statement. The shares are subject to a lock-up provision for a period of 180 days, as required under a lock-up agreement with the underwriters of the IPO.

F2 · balance_after: This amount includes 42,508 unvested restricted stock units in respect of the issuer's Class A common stock ("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: 0001567619-19-008533 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,841

F1 · shares: The reporting person purchased these shares in connection with the closing of the initial public offering of the issuer (the "IPO") at the IPO price of $27.00 per share pursuant to the directed share program described in the issuer's registration statement. The shares are subject to a lock-up provision for a period of 180 days, as required under a lock-up agreement with the underwriters of the IPO.

F2 · balance_after: This amount includes 35,341 unvested restricted stock units in respect of the issuer's Class A common stock ("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) 10,713 restricted stock units will vest on January 1, 2020, and (ii) 24,628 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-008531 · doc1.xml · nonDerivative · entry 1

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 418,948

F1 · shares: The reporting person purchased these shares in connection with the closing of the initial public offering of the issuer (the "IPO") at the IPO price of $27.00 per share pursuant to the directed share program described in the issuer's registration statement. The shares are subject to a lock-up provision for a period of 180 days, as required under a lock-up agreement with the underwriters of the IPO.

F2 · balance_after: This amount includes 398,948 unvested restricted stock units in respect of the issuer's Class A common stock ("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) 191,235 restricted stock units will vest on January 1, 2020, and (ii) 207,713 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-008529 · doc1.xml · nonDerivative · entry 1

Spencer James · CIK 0001771296 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,374

F1 · shares: The reporting person purchased these shares in connection with the closing of the initial public offering of the issuer (the "IPO") at the IPO price of $27.00 per share pursuant to the directed share program described in the issuer's registration statement. The shares are subject to a lock-up provision for a period of 180 days, as required under a lock-up agreement with the underwriters of the IPO.

F2 · balance_after: This amount includes 67,374 unvested restricted stock units in respect of the issuer's Class A common stock ("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) 35,711 restricted stock units will vest on January 1, 2020, and (ii) 31,663 restricted stock units will vest on January 1, 2021.

SEC source: 0001567619-19-008530 · doc1.xml · nonDerivative · entry 1

Madoff Paula · CIK 0001737977 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,704

F1 · kind: The reported transaction is an award of restricted stock units in respect of the issuer's Class A common stock. Subject to the reporting person's continued service as a director of the issuer through the vesting date, these restricted stock units are scheduled to vest on March 21, 2020 and settle in Class A common stock of the issuer within 30 days thereafter.

F2 · balance_after: This amount includes 3,704 unvested restricted stock units in respect of the issuer's Class A common stock as described in footnote 1 to this Form 4.

SEC source: 0000899243-19-010258 · doc4.xml · nonDerivative · entry 1

Ganeles Scott · CIK 0001772250 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,704

F1 · kind: The reported transaction is an award of restricted stock units in respect of the issuer's Class A common stock. Subject to the reporting person's continued service as a director of the issuer through the vesting date, these restricted stock units are scheduled to vest on March 21, 2020 and settle in Class A common stock of the issuer within 30 days thereafter.

F2 · balance_after: This amount includes 3,704 unvested restricted stock units in respect of the issuer's Class A common stock as described in footnote 1 to this Form 4.

SEC source: 0001567619-19-008532 · doc1.xml · nonDerivative · entry 1

Pluta Thomas · CIK 0001771647 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,704

F1 · kind: The reported transaction is an award of restricted stock units in respect of the issuer's Class A common stock. Subject to the reporting person's continued service as a director of the issuer through the vesting date, these restricted stock units are scheduled to vest on March 21, 2020 and settle in Class A common stock of the issuer within 30 days thereafter.

F2 · balance_after: This amount includes 3,704 unvested restricted stock units in respect of the issuer's Class A common stock as described in footnote 1 to this Form 4.

SEC source: 0001567619-19-008531 · doc1.xml · derivative · entry 6

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 338,164

Underlying: Class A common stock · 338,164 shares

Expires 2028-10-26

F5 · kind: On October 26, 2018, the reporting person was granted an option to purchase 4,227,053 shares of Class A Common Stock. On March 22, 2019, the reporting person transferred an option to purchase 338,164 shares of Class A Common Stock held by the reporting person to The Family Trust, which option is fully vested and exercisable as of the date hereof. The reporting person retained an option to purchase 3,888,889 shares of Class A Common Stock following the transfer, which option is vested as to 3,043,479 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date. The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities held by The Family Trust, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

F5 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 4,227,053 shares of Class A Common Stock. On March 22, 2019, the reporting person transferred an option to purchase 338,164 shares of Class A Common Stock held by the reporting person to The Family Trust, which option is fully vested and exercisable as of the date hereof. The reporting person retained an option to purchase 3,888,889 shares of Class A Common Stock following the transfer, which option is vested as to 3,043,479 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date. The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities held by The Family Trust, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

F5 · ownership.nature: On October 26, 2018, the reporting person was granted an option to purchase 4,227,053 shares of Class A Common Stock. On March 22, 2019, the reporting person transferred an option to purchase 338,164 shares of Class A Common Stock held by the reporting person to The Family Trust, which option is fully vested and exercisable as of the date hereof. The reporting person retained an option to purchase 3,888,889 shares of Class A Common Stock following the transfer, which option is vested as to 3,043,479 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date. The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities held by The Family Trust, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-19-008531 · doc1.xml · derivative · entry 5

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,888,889

Underlying: Class A common stock · 338,164 shares

Expires 2028-10-26

F5 · kind: On October 26, 2018, the reporting person was granted an option to purchase 4,227,053 shares of Class A Common Stock. On March 22, 2019, the reporting person transferred an option to purchase 338,164 shares of Class A Common Stock held by the reporting person to The Family Trust, which option is fully vested and exercisable as of the date hereof. The reporting person retained an option to purchase 3,888,889 shares of Class A Common Stock following the transfer, which option is vested as to 3,043,479 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date. The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities held by The Family Trust, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

F5 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 4,227,053 shares of Class A Common Stock. On March 22, 2019, the reporting person transferred an option to purchase 338,164 shares of Class A Common Stock held by the reporting person to The Family Trust, which option is fully vested and exercisable as of the date hereof. The reporting person retained an option to purchase 3,888,889 shares of Class A Common Stock following the transfer, which option is vested as to 3,043,479 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date. The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities held by The Family Trust, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-19-008531 · doc1.xml · derivative · entry 3

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 208,487

Underlying: Class A common stock · 208,487 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, a subsidiary of the issuer, non-voting common units of 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 of the issuer ("Class D Common Stock") held by the reporting person (or shares of Class C common stock of the issuer ("Class C Common Stock"), in the event the reporting person exchanged their shares of Class D Common Stock for shares of Class C Common Stock) will be canceled. These exchange rights do not expire.

F4 · kind: On March 22, 2019, the reporting person transferred his LLC Units to The Lee Olesky 2019 Family Trust ("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.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, a subsidiary of the issuer, non-voting common units of 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 of the issuer ("Class D Common Stock") held by the reporting person (or shares of Class C common stock of the issuer ("Class C Common Stock"), in the event the reporting person exchanged their shares of Class D Common Stock for shares of Class C Common Stock) 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, a subsidiary of the issuer, non-voting common units of 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 of the issuer ("Class D Common Stock") held by the reporting person (or shares of Class C common stock of the issuer ("Class C Common Stock"), in the event the reporting person exchanged their shares of Class D Common Stock for shares of Class C Common Stock) will be canceled. These exchange rights do not expire.

F4 · ownership.nature: On March 22, 2019, the reporting person transferred his LLC Units to The Lee Olesky 2019 Family Trust ("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: 0001567619-19-008531 · doc1.xml · derivative · entry 2

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A common stock · 208,487 shares

Expires not disclosed

F3 · derivative.exercise_price: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, a subsidiary of the issuer, non-voting common units of 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 of the issuer ("Class D Common Stock") held by the reporting person (or shares of Class C common stock of the issuer ("Class C Common Stock"), in the event the reporting person exchanged their shares of Class D Common Stock for shares of Class C Common Stock) will be canceled. These exchange rights do not expire.

F4 · kind: On March 22, 2019, the reporting person transferred his LLC Units to The Lee Olesky 2019 Family Trust ("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.

F3 · derivative.exercise_date: Pursuant to the terms of the limited liability company agreement for Tradeweb Markets LLC, a subsidiary of the issuer, non-voting common units of 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 of the issuer ("Class D Common Stock") held by the reporting person (or shares of Class C common stock of the issuer ("Class C Common Stock"), in the event the reporting person exchanged their shares of Class D Common Stock for shares of Class C Common Stock) 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, a subsidiary of the issuer, non-voting common units of 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 of the issuer ("Class D Common Stock") held by the reporting person (or shares of Class C common stock of the issuer ("Class C Common Stock"), in the event the reporting person exchanged their shares of Class D Common Stock for shares of Class C Common Stock) will be canceled. These exchange rights do not expire.

SEC source: 0001567619-19-008528 · doc1.xml · derivative · entry 2

WARSHAW ROBERT J · CIK 0001278872 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,126

Underlying: Class A common stock · 332,126 shares

Expires 2028-10-26

F3 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 332,126 shares of Class A Common Stock, which option is vested as to 265,701 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

SEC source: 0001567619-19-008538 · doc1.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 407,609

Underlying: Class A common stock · 407,609 shares

Expires 2028-10-26

F3 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 407,609 shares of Class A Common Stock, which option is vested as to 326,087 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

SEC source: 0001567619-19-008537 · doc1.xml · derivative · entry 2

Zucker Scott · CIK 0001771197 · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,063

Underlying: Class A common stock · 166,063 shares

Expires 2028-10-26

F3 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 166,063 shares of Class A Common Stock, which option is vested as to 132,850 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

SEC source: 0001567619-19-008534 · doc1.xml · derivative · entry 2

Hult William · CIK 0001771194 · Director · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,264,493

Underlying: Class A common stock · 2,264,493 shares

Expires 2028-10-26

F3 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 2,264,493 shares of Class A Common Stock, which option is vested as to 1,811,595 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

SEC source: 0001567619-19-008536 · doc1.xml · derivative · entry 2

Friedman Douglas · CIK 0001771193 · General Counsel and Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 181,159

Underlying: Class A common stock · 181,159 shares

Expires 2028-10-26

F3 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 181,159 shares of Class A Common Stock, which option is vested as to 144,928 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

SEC source: 0001567619-19-008533 · doc1.xml · derivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 226,449

Underlying: Class A common stock · 226,449 shares

Expires 2028-10-26

F3 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 226,449 shares of Class A Common Stock, which option is vested as to 181,160 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.

SEC source: 0001567619-19-008531 · doc1.xml · derivative · entry 4

Olesky Lee · CIK 0001771195 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,227,053

Underlying: Class A common stock · 4,227,053 shares

Expires 2028-10-26

F5 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 4,227,053 shares of Class A Common Stock. On March 22, 2019, the reporting person transferred an option to purchase 338,164 shares of Class A Common Stock held by the reporting person to The Family Trust, which option is fully vested and exercisable as of the date hereof. The reporting person retained an option to purchase 3,888,889 shares of Class A Common Stock following the transfer, which option is vested as to 3,043,479 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date. The reporting person and his wife, as the co-trustees of The Family Trust, share the power to vote and invest the securities held by The Family Trust, but each disclaims beneficial ownership of such securities except to the extent of his or her pecuniary interest therein.

SEC source: 0001567619-19-008529 · doc1.xml · derivative · entry 2

Spencer James · CIK 0001771296 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 422,706

Underlying: Class A common stock · 422,706 shares

Expires 2028-10-26

F3 · derivative.exercise_date: On October 26, 2018, the reporting person was granted an option to purchase 422,706 shares of Class A Common Stock, which option is vested as to 338,165 of the shares subject thereto as of the date hereof. The remainder of the option will vest on January 1, 2020, subject to the reporting person's continued employment on such date.