System1, Inc.·4

Apr 17, 8:31 PM ET

Weinrot Daniel J 4

4 · System1, Inc. · Filed Apr 17, 2026

Research Summary

AI-generated summary of this filing

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System1 (SST) GC Daniel Weinrot Withholds 341 Shares for Taxes

What Happened
Daniel J. Weinrot, General Counsel & Secretary of System1, had 341 shares withheld on April 15, 2026 to satisfy tax withholding tied to the vesting of 670 restricted stock units (RSUs). The withheld shares were valued at $2.26 each, totaling $771. This was an administrative tax-withholding action related to RSU vesting, not an open-market sale.

Key Details

  • Transaction date: 2026-04-15; Filing date: 2026-04-17 (filed within standard Form 4 timing).
  • Withheld: 341 shares at $2.26 per share; total value reported $771. (Transaction code F = tax withholding)
  • Vesting: 670 RSUs vested; 341 shares withheld to cover withholding (Footnote F1).
  • Holdings: Filing notes 54,510 unvested RSUs (Footnote F2). Total post-transaction beneficial ownership not otherwise specified in the filing.
  • Filing timeliness: Not reported as late; filed two days after the transaction.

Context
Share withholding to cover taxes is a common administrative outcome when RSUs vest (a form of cashless withholding), and differs from a deliberate open-market sale or purchase. Such withholdings generally reflect tax obligations rather than an insider expressing a view on the company’s stock.

Insider Transaction Report

Form 4
Period: 2026-04-15
Weinrot Daniel J
General Counsel & Secretary
Transactions
  • Tax Payment

    Class A Common Stock

    [F1][F2]
    2026-04-15$2.26/sh341$77169,053 total
Footnotes (2)
  • [F1]Upon the vesting of 670 restricted stock units ("RSUs") previously granted to the reporting person, the Company withheld 341 shares to cover the reporting person's tax withholding obligation with respect to the vesting of such RSUs.
  • [F2]Includes 54,510 unvested RSUs.
Signature
/s/ Daniel J Weinrot|2026-04-17

Documents

1 file
  • 4
    wk-form4_1776472309.xmlPrimary

    FORM 4