Clack Amy 4

4 · Tradeweb Markets Inc. · Filed Mar 19, 2026

AI-generated summary of this filing

Updated Mar 19, 2026

Tradeweb (TW) CAO Amy Clack Sells 1,128 Shares

What Happened

Amy Clack, Chief Administrative Officer of Tradeweb Markets (TW), had 1,128 shares of Class A common stock withheld to satisfy tax withholding related to the settlement of restricted stock units (RSUs). The withholding was executed at $126.17 per share, a total value of approximately $142,320 (reported as a disposition, transaction code F). Separately, she was credited with 3 shares (transaction code A) in connection with settlement of dividend equivalent rights (DERs) tied to previously awarded RSUs; those 3 shares were acquired at no cash cost.

Key Details

Transaction date: March 17, 2026. Form filed March 19, 2026 (timely filing).
Withheld/disposed: 1,128 shares at $126.17 each — total ~$142,320 (tax withholding related to RSU settlement; code F).
Acquired: 3 shares at $0.00 (DER settlement; code A).
Shares owned after transaction: filing does not list total outright holdings here, but footnotes show 15,715 unvested RSUs remaining (2,434 vesting 1/1/2027; 2,434 vesting 1/1/2028; 4,418 vesting in equal installments 3/17/2027 & 3/17/2028; 6,429 vesting in equal installments 3/15/2027, 3/15/2028 & 3/15/2029), subject to continued employment.
Footnotes: F1 — withholding to satisfy tax obligations on RSU settlement; F3 — 3 shares from DERs linked to previously awarded RSUs.

Context

The 1,128-share disposition reflects routine tax withholding on equity compensation (not an open-market sale intended as a directional bet). The small DER award (3 shares) is a settlement related to those RSUs. Such withholding transactions are common when equity grants vest and generally should not be interpreted as a signal of insider sentiment.

Form 4

Period: 2026-03-17

Chief Administrative Officer

Transactions

Tax Payment
Class A common stock
[F1][F2]
2026-03-17$126.17/sh−1,128$142,320→ 21,825 total
Award
Class A common stock
[F3][F2]
2026-03-17+3→ 21,828 total

Footnotes (3)

[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.
[F2]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.
[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.

Signature

/s/ Douglas Friedman, Attorney-in-Fact for Amy Clack|2026-03-19

1 file