Tradeweb (TW) CAO reports RSU tax withholding and DER share award

Rhea-AI Filing Summary

Tradeweb Markets Inc. Chief Administrative Officer Amy Clack reported routine equity compensation activity in Class A common stock. On March 17, 2026, 1,128 shares were withheld by the company to cover tax obligations tied to restricted stock unit (RSU) settlement, and 3 shares were acquired through dividend equivalent rights settling in stock. Following these transactions, she directly holds 21,828 shares of Class A common stock. Footnotes also note several blocks of unvested RSUs scheduled to vest between 2027 and 2029, subject to continued employment.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Clack Amy

(Last) (First) (Middle)

TRADEWEB MARKETS INC.

245 PARK AVENUE

(Street)

NEW YORK NEW YORK 10167

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Tradeweb Markets Inc. [ TW ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Administrative Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A common stock	03/17/2026		F(1)		1,128	D	$126.17	21,825(2)	D
Class A common stock	03/17/2026		A(3)		3	A	$0	21,828(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares withheld by the issuer to satisfy the tax withholding obligation associated with the settlement of restricted stock units ("RSUs") in respect of the issuer's Class A common stock ("Class A Common Stock") held by the reporting person.

2. This amount includes (i) 2,434 unvested RSUs in respect of the Class A Common Stock that are scheduled to vest on January 1, 2027, (ii) 2,434 unvested RSUs in respect of Class A Common Stock that are scheduled to vest on January 1, 2028, (iii) 4,418 unvested RSUs in respect of Class A Common Stock that are scheduled to vest in equal installments on March 17, 2027 and March 17, 2028 and (iv) 6,429 unvested RSUs in respect of Class A Common Stock that are scheduled to vest in equal installments on March 15, 2027, March 15, 2028 and March 15, 2029, in each case, subject to the reporting person's continued employment through the applicable vesting date.

3. Represents shares of Class A Common Stock acquired in connection with the settlement of certain dividend equivalent rights (the "DERs"). The DERs were granted in connection with previously awarded RSUs, and settled in shares of Class A Common Stock in connection with the settlement of the RSUs to which they relate.

Remarks:

	/s/ Douglas Friedman, Attorney-in-Fact for Amy Clack	03/19/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider activity did Tradeweb (TW) report for Amy Clack on this Form 4?

Amy Clack reported routine equity compensation activity. 1,128 shares of Class A common stock were withheld to cover RSU-related tax obligations, and 3 shares were acquired through dividend equivalent rights that settled in stock alongside vested RSUs.

Was the Tradeweb (TW) Form 4 transaction an open-market sale or purchase?

The filing does not show any open-market sale or purchase. It reports a tax-withholding disposition of 1,128 shares and a grant/award acquisition of 3 shares, both related to RSU and dividend equivalent right settlements, not market trading.

How many Tradeweb (TW) shares does Amy Clack hold after these Form 4 transactions?

After the reported transactions, Amy Clack directly holds 21,828 shares of Tradeweb Class A common stock. This balance reflects the net position after 1,128 shares were withheld for taxes and 3 shares were added from dividend equivalent rights settlements on March 17, 2026.

What are the RSU-related tax withholding details in the Tradeweb (TW) Form 4?

The Form 4 states that 1,128 shares were withheld by Tradeweb to satisfy the tax withholding obligation associated with RSU settlement. This is a non-market disposition where the issuer retains shares instead of the insider selling them to pay taxes.

What unvested RSUs for Tradeweb (TW) does Amy Clack still have outstanding?

Footnotes show unvested RSUs totaling multiple blocks: 2,434 RSUs vesting January 1, 2027; 2,434 RSUs vesting January 1, 2028; 4,418 RSUs vesting in 2027 and 2028; and 6,429 RSUs vesting in 2027, 2028, and 2029, all contingent on continued employment.

What are dividend equivalent rights (DERs) mentioned in the Tradeweb (TW) Form 4?

The filing explains that dividend equivalent rights (DERs) were granted with earlier RSUs and settled in stock. In this report, 3 shares of Class A common stock were acquired when the DERs settled concurrently with the underlying RSU settlement.