---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-030451"
form_type: "8-K"
ticker: "SST"
cik: "0001805833"
company_name: "System1, Inc."
filed_at: "2025-06-10T23:59:59+00:00"
generated_at: "2026-05-19T15:58:19.004430+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# System1 announces 1-for-10 reverse stock split to meet NYSE listing requirement

## Summary
- 1-for-10 reverse stock split effective June 11, 2025 at 5pm ET; split-adjusted shares begin trading June 12 on NYSE under SST.
- Shareholders approved 2022 Incentive Plan amendment adding 19,125,000 new award shares and SARs plan repricing.
- Ryan Caswell, John Civantos, Tanmay Kumar elected as Class III directors for three-year terms.
- Proposal to authorize reverse split passed with 71,875,342 votes for (99.8% of votes cast).
- Warrants adjusted: every 10 warrants now exercisable for 1 share of Class A common at $115.00 per share.

## SEC filing metadata
- accession: 0001628280-25-030451
- form_type: 8-K
- ticker: SST
- cik: 0001805833
- company_name: System1, Inc.
- filed_at: 2025-06-10T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 5.07, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1805833/000162828025030451/0001628280-25-030451-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1805833/000162828025030451/sst-20250610.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-030451
- JSON: https://secwatch.observer/filing/0001628280-25-030451.json
- Plain text: https://secwatch.observer/filing/0001628280-25-030451.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.