System1, Inc. — Director's Dealing 2025

Jan 17, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: System1, Inc. (SST)
CIK: 0001805833
Period of Report: 2025-01-15

Reporting Person: Sestanovich Elizabeth (Chief People Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-01-15	Class A Common Stock	F	11301	$0.62	Disposed	212036	Direct

Footnotes

F1: Upon the vesting of 27,506 restricted stock units ("RSUs") previously granted to the reporting person, the Company withheld 11,301 shares to cover the reporting person's tax withholding obligation with respect to the vesting of such RSUs.

F2: Includes 348 shares received in connection with pro-rata distributions from OpenMail2, LLC to its members, for no consideration and in an exempt transaction under Rule 16a-9, since the Reporting Person's last reportable transaction filed on Form 4.

F3: Includes 72,350 unvested RSUs.