John Civantos - 31 Jul 2025 Form 4 Insider Report for System1, Inc. (SST)

Role: Director
Signature: /s/ Daniel Weinrot, Attorney-in-Fact for John Civantos
Issuer symbol: SST
Transactions as of: 31 Jul 2025
Net transactions value: $0
Form type: 4
Filing time: 04 Aug 2025, 20:42:27 UTC
Previous filing: 17 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Civantos John	Director	4235 REDWOOD AVE, LOS ANGELES	/s/ Daniel Weinrot, Attorney-in-Fact for John Civantos	05 Aug 2025	0001915482

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SST	Class A Common Stock	Award	$0	+15,000	+27%	$0.000000	70,613	31 Jul 2025	Direct	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents a grant of 15,000 restricted stock units ("RSUs) which convert into Class A Common Stock on a one-for-one basis, pursuant to the 2022 Incentive Award Plan of the Issuer in connection with Mr. Civantos' continued service as a member of its Board of Directors as of the close of business on the date of its annual shareholder meeting. The RSUs vest in four (4) substantially equal quarterly installments on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026 as long Mr. Horn continues to serve as a Director of the Issuer through the applicable vesting dates.
F2	Includes 15,000 unvested RSUs.

Content

Represents a grant of 15,000 restricted stock units ("RSUs) which convert into Class A Common Stock on a one-for-one basis, pursuant to the 2022 Incentive Award Plan of the Issuer in connection with Mr. Civantos' continued service as a member of its Board of Directors as of the close of business on the date of its annual shareholder meeting. The RSUs vest in four (4) substantially equal quarterly installments on each of September 15, 2025, December 15, 2025, March 15, 2026 and June 15, 2026 as long Mr. Horn continues to serve as a Director of the Issuer through the applicable vesting dates.

Includes 15,000 unvested RSUs.