---
schema_version: "secwatch.filing_event.v1"
accession: "0001818331-22-000060"
form_type: "8-K"
ticker: "WGS"
cik: "0001818331"
company_name: "GeneDx Holdings Corp."
filed_at: "2022-07-01T23:59:59+00:00"
generated_at: "2026-06-24T21:46:04.677640+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Sema4 CAO Shawn Assad to resign; Richard Miao appointed Principal Accounting Officer

## Summary
- Shawn Assad resigns as Chief Accounting Officer effective August 30, 2022; departure not related to accounting disagreements.
- Richard Miao named Principal Accounting Officer, adding to his roles as Interim CFO and Deputy CFO.
- Miao joined Sema4 in May 2021 as SVP of FP&A and Treasurer; previously SVP at Endeavor Group Holdings.

## SEC filing metadata
- accession: 0001818331-22-000060
- form_type: 8-K
- ticker: WGS
- cik: 0001818331
- company_name: GeneDx Holdings Corp.
- filed_at: 2022-07-01T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1818331/000181833122000060/0001818331-22-000060-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1818331/000181833122000060/smfr-20220627.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001818331-22-000060
- JSON: https://secwatch.observer/filing/0001818331-22-000060.json
- Plain text: https://secwatch.observer/filing/0001818331-22-000060.txt

## Key facts
- Executive change
  Richard Miao was appointed as Principal Accounting Officer at GeneDx Holdings Corp..
  - Action: will serve
  - Role: Principal Accounting Officer
  source text: Effective upon Mr. Assad’s departure, Richard Miao will serve as the Company’s Principal Accounting Officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1818331/000181833122000060/0001818331-22-000060-index.htm
- Executive change
  Shawn Assad resigned as Chief Accounting Officer at GeneDx Holdings Corp..
  - Action: resigned
  - Role: Chief Accounting Officer
  source text: On June 27, 2022, Shawn Assad notified Sema4 Holdings Corp. (the “Company”) that he will resign from his role as Chief Accounting Officer of the Company, effective August 30, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1818331/000181833122000060/0001818331-22-000060-index.htm

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