---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-22-005280"
form_type: "8-K"
ticker: "QSI"
cik: "0001816431"
company_name: "Quantum-Si Inc"
filed_at: "2022-02-14T23:59:59+00:00"
generated_at: "2026-06-27T08:29:22.919952+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# CEO John Stark resigns; Executive Chairman Rothberg appointed Interim CEO

## Summary
- John Stark resigned as CEO and Board member effective Feb 8, 2022.
- Jonathan M. Rothberg, Ph.D., Executive Chairman, appointed Interim CEO; search for permanent CEO underway.
- Separation agreement: $500K severance, $352,750 2021 bonus, $250K special bonus, plus COBRA.
- Unvested RSUs (1,277,594 time-vested and 453,777 performance-vested) forfeited.

## SEC filing metadata
- accession: 0001140361-22-005280
- form_type: 8-K
- ticker: QSI
- cik: 0001816431
- company_name: Quantum-Si Inc
- filed_at: 2022-02-14T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1816431/000114036122005280/0001140361-22-005280-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1816431/000114036122005280/brhc10033947_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-22-005280
- JSON: https://secwatch.observer/filing/0001140361-22-005280.json
- Plain text: https://secwatch.observer/filing/0001140361-22-005280.txt

## Key facts
- Executive change
  John Stark resigned as Chief Executive Officer at Quantum-Si Inc.
  - Action: resigned
  - Role: Chief Executive Officer
  source text: Effective February 8, 2022, John Stark delivered his resignation as Quantum-Si Incorporated’s (the “Company”) Chief Executive Officer and a member of the Board of Directors (the “Board”) in order to pursue opportunities outside of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1816431/000114036122005280/0001140361-22-005280-index.htm
- Executive change
  Jonathan M. Rothberg, Ph.D. was appointed as Interim Chief Executive Officer at Quantum-Si Inc.
  - Action: appointed
  - Role: Interim Chief Executive Officer
  source text: On February 8, 2022, the Board appointed Jonathan M. Rothberg, Ph.D. as Interim Chief Executive Officer of the Company, effective as of February 8, 2022, to succeed Mr. Stark while the Company searches for Mr. Stark’s replacement.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1816431/000114036122005280/0001140361-22-005280-index.htm

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