---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-24-038744"
form_type: "8-K"
ticker: "QSI"
cik: "0001816431"
company_name: "Quantum-Si Inc"
filed_at: "2024-08-27T23:59:59+00:00"
generated_at: "2026-05-31T07:26:58.562828+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Quantum-Si appoints Bennett as CCO, Vieceli as CPO, Thompson as CHRO; Johnston resigns

## Summary
- Todd Bennett appointed Chief Commercial Officer effective Sept 17, 2024; Grace Johnston resigns effective Sept 6.
- John Vieceli named Chief Product Officer; Lindsay Thompson named Chief Human Resources Officer.
- Bennett receives inducement stock options ($500K grant-date fair value) and RSUs ($500K), vesting 25% at one year then quarterly.
- Bennett brings 30+ years commercial leadership from Luminex, Abbott, Roche, and Immucor.

## SEC filing metadata
- accession: 0001140361-24-038744
- form_type: 8-K
- ticker: QSI
- cik: 0001816431
- company_name: Quantum-Si Inc
- filed_at: 2024-08-27T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1816431/000114036124038744/0001140361-24-038744-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1816431/000114036124038744/ef20034875_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-24-038744
- JSON: https://secwatch.observer/filing/0001140361-24-038744.json
- Plain text: https://secwatch.observer/filing/0001140361-24-038744.txt

## Key facts
- Executive change
  Grace Johnston resigned as Chief Commercial Officer at Quantum-Si Inc.
  - Action: resigned
  - Role: Chief Commercial Officer
  source text: On August 21, 2024, Grace Johnston, Ph.D. delivered her resignation as the Chief Commercial Officer of Quantum-Si Incorporated (the “Company”), effective as of September 6, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1816431/000114036124038744/0001140361-24-038744-index.htm
- Executive change
  Todd Bennett was appointed as Chief Commercial Officer at Quantum-Si Inc.
  - Action: appointed
  - Role: Chief Commercial Officer
  source text: The Company has appointed Todd Bennett as the Company’s new Chief Commercial Officer, effective as of September 17, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1816431/000114036124038744/0001140361-24-038744-index.htm

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