Tradeweb CAO sells 271 shares under 10b5-1 plan

Tradeweb Markets Inc. Chief Administrative Officer Amy Clack reported an open-market sale of 271 shares of Class A common stock at $125.75 per share.

Rhea-AI Filing Summary

Tradeweb Markets Inc. Chief Administrative Officer Amy Clack reported an open-market sale of 271 shares of Class A common stock at $125.75 per share. After this transaction, she directly holds 21,557 shares.

The sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on November 3, 2025. Her reported holdings also include unvested restricted stock units: 2,434 RSUs scheduled to vest on January 1, 2027, 2,434 RSUs scheduled to vest on January 1, 2028, 4,418 RSUs vesting in equal installments on March 17, 2027 and March 17, 2028, and 6,429 RSUs vesting in equal installments on March 15, 2027, March 15, 2028 and March 15, 2029, all subject to continued employment.

Insider Trade Summary 10b5-1

Net Seller: 271 shares

Net Sell 1 txn

Insider Clack Amy

Role Chief Administrative Officer

Sold 271 shs ($34K)

Type	Security	Shares	Price	Value
Sale	Class A common stock	271	$125.75	$34K

Holdings After Transaction: Class A common stock — 21,557 shares (Direct)

Footnotes (2)

1. F1. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.
2. F2. This amount includes (i) 2,434 unvested restricted stock units ("RSUs") in respect of the issuer's Class A common stock ("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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Tradeweb Markets (TW) report for Amy Clack?

Amy Clack reported an open-market sale of 271 shares of Tradeweb Markets Class A common stock at $125.75 per share. She remains a significant holder with 21,557 shares directly owned plus multiple tranches of unvested restricted stock units scheduled to vest through 2029.

How many Tradeweb Markets (TW) shares does Amy Clack hold after the reported sale?

After the sale, Amy Clack directly holds 21,557 shares of Tradeweb Markets Class A common stock. In addition, her position includes several grants of unvested restricted stock units that are scheduled to vest between January 1, 2027 and March 15, 2029, subject to continued employment.

Was Amy Clack’s Tradeweb Markets (TW) share sale part of a Rule 10b5-1 plan?

Yes. The 271-share sale was effected pursuant to a Rule 10b5-1 trading plan adopted on November 3, 2025. Such plans pre-schedule trades, helping separate routine portfolio management from discretionary market-timing decisions by corporate insiders like Tradeweb’s Chief Administrative Officer.

What unvested RSUs does Amy Clack have in Tradeweb Markets (TW)?

Amy Clack’s holdings include unvested RSUs: 2,434 vesting January 1, 2027, 2,434 vesting January 1, 2028, 4,418 vesting in equal installments on March 17, 2027 and 2028, and 6,429 vesting in equal installments on March 15, 2027, 2028 and 2029, contingent on continued employment.

What role does Amy Clack hold at Tradeweb Markets (TW)?

Amy Clack serves as Chief Administrative Officer of Tradeweb Markets Inc. Her Form 4 filing reflects insider activity in the company’s Class A common stock, including a recent open-market sale and detailed disclosure of her remaining direct holdings and unvested restricted stock units.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/24/2026 - 04:07 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

X

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)
03/20/2026

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	03/20/2026		S(1)		271	D	$125.75	21,557(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. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

2. This amount includes (i) 2,434 unvested restricted stock units ("RSUs") in respect of the issuer's Class A common stock ("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.

Remarks:

	/s/ Douglas Friedman, Attorney-in-Fact for Amy Clack	03/23/2026
	** 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)