Tradeweb Markets (TW) CTO sells 21,221 shares under Rule 10b5-1 plan

Rhea-AI Filing Summary

Tradeweb Markets Inc. Chief Technology Officer Justin Peterson reported an open-market sale of 21,221 shares of Class A common stock at $102.00 per share. After the transaction, he reported 15,070 shares, which the filing notes include unvested restricted stock units scheduled to vest between March 2027 and March 2029. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 3, 2025, indicating it was planned in advance.

Insights

Equity analyst

CTO’s pre-planned share sale looks routine and proportionate.

Chief Technology Officer Justin Peterson sold 21,221 shares of Tradeweb Markets Inc. Class A common stock at $102.00 per share in an open-market transaction. Following the sale, he reported 15,070 shares, including several tranches of unvested RSUs.

The filing specifies the trade was carried out under a Rule 10b5-1 trading plan adopted on November 3, 2025, meaning the timing was pre-scheduled rather than opportunistic. With remaining equity exposure through both shares and RSUs vesting from March 2027 to March 2029, this appears to be routine diversification rather than a full exit.

Insider Trade Summary 10b5-1

Net Seller: 21,221 shares ($2,164,542)

Net Sell 1 txn

Insider Peterson Justin

Role Chief Technology Officer

Sold 21,221 shs ($2.16M)

Type	Security	Shares	Price	Value
Sale	Class A common stock	21,221	$102.00	$2.16M

Holdings After Transaction: Class A common stock — 15,070 shares (Direct, null)

Footnotes (1)

1. This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025. This amount includes (i) 2,548 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 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.

Key Figures

Shares sold: 21,221 shares Sale price: $102.00 per share Shares after transaction: 15,070 shares +3 more

6 metrics

Shares sold 21,221 shares Open-market sale of Class A common stock on June 1, 2026

Sale price $102.00 per share Price for the reported open-market sale

Shares after transaction 15,070 shares Total reported holdings following the sale

Unvested RSUs tranche 1 2,548 RSUs Scheduled to vest on March 15, 2027

Unvested RSUs tranche 2 4,485 RSUs Scheduled to vest in equal installments on March 17, 2027 and March 17, 2028

Unvested RSUs tranche 3 8,037 RSUs Scheduled to vest in equal installments in 2027, 2028 and 2029

Key Terms

Rule 10b5-1 trading plan, restricted stock units, Class A common stock, open-market sale

4 terms

Rule 10b5-1 trading plan regulatory

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

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

restricted stock units financial

"This amount includes 2,548 unvested restricted stock units ("RSUs") in respect of the issuer's Class A common stock..."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Class A common stock financial

"Class A common stock"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

open-market sale financial

"transaction_action: open-market sale"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

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Form 4 Insider Transactions: What Each Field Means →

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)
06/01/2026

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	06/01/2026		S		21,221(1)	D	$102	15,070(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) 2,548 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 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.

Remarks:

	/s/ Douglas Friedman, Attorney-in-Fact for Justin Peterson	06/02/2026
	** 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 did Tradeweb (TW) CTO Justin Peterson report in this Form 4?

Justin Peterson reported selling 21,221 shares of Tradeweb Class A common stock at $102.00 per share. After the sale, he reported owning 15,070 shares, including unvested RSUs that continue to vest over future dates, maintaining ongoing equity exposure.

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

Yes. The filing states the transaction was effected under a Rule 10b5-1 trading plan adopted on November 3, 2025. Such plans pre-schedule trades, indicating the sale’s timing was arranged in advance rather than being a discretionary market-timing decision.

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

The CTO sold 21,221 shares of Tradeweb Markets Inc. Class A common stock at $102.00 per share in an open-market transaction. This represents a sizable sale in dollar terms but leaves him with a continuing equity stake.

How many Tradeweb (TW) shares does the CTO hold after the reported sale?

Following the sale, Justin Peterson reported holding 15,070 shares of Tradeweb Class A common stock. The filing explains this amount includes multiple tranches of unvested restricted stock units that vest between March 2027 and March 2029, subject to continued employment.

What RSU awards for Tradeweb (TW) are disclosed for the CTO?

The filing notes unvested RSUs covering 2,548, 4,485, and 8,037 shares of Class A common stock. These are scheduled to vest on specific dates from March 2027 through March 2029, contingent on Justin Peterson’s continued employment with Tradeweb.