Brian Coppola - Oct 15, 2025 Form 4 Insider Report for System1, Inc. (SST)

Signature
/s/ Daniel Weinrot, Attorney-in-Fact for Brian Coppola
Stock symbol
SST
Transactions as of
Oct 15, 2025
Transactions value $
-$2,993
Form type
4
Date filed
10/17/2025, 07:10 PM
Previous filing
Jul 30, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Coppola Brian Chief Ad Operations Officer 4235 REDWOOD AVE, LOS ANGELES /s/ Daniel Weinrot, Attorney-in-Fact for Brian Coppola 2025-10-17 0001906904

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SST Class A Common Stock Tax liability -$2.99K -377 -0.56% $7.94 67.1K Oct 15, 2025 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Upon the vesting of 754 restricted stock units ("RSUs") previously granted to the reporting person, the Company withheld 377 shares to cover the reporting person's tax withholding obligation with respect to the vesting of such RSUs.
F2 Includes 44,708 unvested RSUs.