Tradeweb CTO sells 3,212 shares under plan

Tradeweb Markets Inc. Chief Technology Officer Justin Peterson reported several Class A common stock transactions.

Rhea-AI Filing Summary

Tradeweb Markets Inc. Chief Technology Officer Justin Peterson reported several Class A common stock transactions. On March 18, 2026, he sold 3,212 shares in an open‑market trade at a weighted average price of $124.7558 per share pursuant to a pre‑arranged Rule 10b5‑1 trading plan. After this sale, he directly held 58,517 shares.

On March 17, 2026, 1,241 shares were withheld by the company at $126.17 per share to cover tax obligations tied to restricted stock unit (RSU) settlement, and 3 shares were acquired through dividend equivalent rights. His holdings also include unvested RSUs scheduled to vest between March 2027 and March 2029, contingent on continued employment.

Insider Trade Summary 10b5-1

Net Seller: 3,212 shares

Net Sell 3 txns

Insider Peterson Justin

Role Chief Technology Officer

Sold 3,212 shs ($401K)

Type	Security	Shares	Price	Value
Sale	Class A common stock	3,212	$124.7558	$401K
Exercise Price or Tax Liability	Class A common stock	1,241	$126.17	$157K
Grant/Award	Class A common stock	3	$0.00	$0.00

Holdings After Transaction: Class A common stock — 58,517 shares (Direct)

Footnotes (5)

1. F1. 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. F2. This amount includes (i) 2,548 unvested RSUs in respect of Class A Common Stock that are scheduled to vest on March 15, 2027, (ii) 4,485 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 (iii) 8,037 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. F3. 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.
4. F4. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.
5. F5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.32 to $125.86, 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 this footnote.

FAQ

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

What insider transactions did Tradeweb (TW) CTO Justin Peterson report?

Justin Peterson reported an open-market sale of 3,212 Tradeweb Class A shares and related equity events. These included tax-withholding of 1,241 shares for RSU settlement and acquisition of 3 shares via dividend equivalent rights, alongside ongoing unvested RSU awards.

How many Tradeweb (TW) shares did the CTO sell and at what price?

The CTO sold 3,212 shares of Tradeweb Class A common stock at a weighted average price of $124.7558 per share. The sale was executed in multiple trades between $123.32 and $125.86 under a pre-arranged Rule 10b5-1 trading plan.

How many Tradeweb (TW) shares does the CTO hold after these transactions?

Following the reported transactions, the CTO directly holds 58,517 shares of Tradeweb Class A common stock. This figure reflects the net position after the 3,212-share sale, tax-withholding of 1,241 shares, and acquisition of 3 dividend-equivalent shares.

Were any Tradeweb (TW) shares sold for tax withholding rather than on the market?

Yes. 1,241 Tradeweb shares were withheld by the company to satisfy tax obligations from RSU settlement. This F-coded disposition is not an open-market sale, but a mechanistic share withholding to cover the insider’s tax liability on equity compensation.

Was the Tradeweb (TW) CTO’s share sale under a Rule 10b5-1 plan?

The footnotes state the 3,212-share open-market sale was executed under a Rule 10b5-1 trading plan adopted on November 3, 2025. Such plans pre-schedule trades, making their timing more routine and less reflective of short-term views on the stock.

What unvested RSUs does the Tradeweb (TW) CTO still have outstanding?

The CTO’s position includes 2,548 unvested RSUs vesting March 15, 2027, 4,485 unvested RSUs vesting March 17, 2027 and 2028, and 8,037 unvested RSUs vesting March 15 in 2027, 2028, and 2029, all subject to continued employment.

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Accepted by SEC EDGAR 03/19/2026 - 04:09 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^*

Peterson Justin

(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 Technology 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)		1,241	D	$126.17	61,726(2)	D
Class A common stock	03/17/2026		A(3)		3	A	$0	61,729(2)	D
Class A common stock	03/18/2026		S(4)		3,212	D	$124.7558(5)	58,517(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) 2,548 unvested RSUs in respect of Class A Common Stock that are scheduled to vest on March 15, 2027, (ii) 4,485 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 (iii) 8,037 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.

4. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $123.32 to $125.86, 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 this footnote.

Remarks:

	/s/ Douglas Friedman, Attorney-in-Fact for Justin Peterson	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)