---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-23-030639"
form_type: "8-K"
ticker: "QSI"
cik: "0001816431"
company_name: "Quantum-Si Inc"
filed_at: "2023-06-21T23:59:59+00:00"
generated_at: "2026-06-13T20:13:42.762534+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Quantum-Si appoints Johan Denecke as SVP of Operations; EVP Michael McKenna to depart July 31

## Summary
- Johan Denecke named SVP of Operations, effective June 20, 2023, responsible for scaling production and operational excellence.
- Michael McKenna, Ph.D., will step down as EVP of Product Development and Operations, effective July 31, 2023, by mutual agreement.
- Denecke previously held senior operations roles at Illumina, Thermo Fisher Scientific, and Atomica.
- McKenna’s separation terms will align with the company’s Executive Severance Plan.
- Appointment aims to support commercialization of Quantum-Si’s single-molecule protein sequencing platform.

## SEC filing metadata
- accession: 0001140361-23-030639
- form_type: 8-K
- ticker: QSI
- cik: 0001816431
- company_name: Quantum-Si Inc
- filed_at: 2023-06-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1816431/000114036123030639/0001140361-23-030639-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1816431/000114036123030639/brhc20054657_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-23-030639
- JSON: https://secwatch.observer/filing/0001140361-23-030639.json
- Plain text: https://secwatch.observer/filing/0001140361-23-030639.txt

## Key facts
- Executive change
  Michael P. McKenna, Ph.D. departed as Executive Vice President, Product Development and Operations at Quantum-Si Inc.
  - Action: stepped down
  - Role: Executive Vice President, Product Development and Operations
  source text: mutually determined that Dr. McKenna will step down from such role, effective as of July 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1816431/000114036123030639/0001140361-23-030639-index.htm

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