---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-052203"
form_type: "8-K"
ticker: "DH"
cik: "0001861795"
company_name: "Definitive Healthcare Corp."
filed_at: "2023-10-05T23:59:59+00:00"
generated_at: "2026-06-10T04:15:21.879362+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Definitive Healthcare names Carrie Lazorchak as CRO; Mirisola to depart Dec 31

## Summary
- CRO Joe Mirisola resigns effective Nov 1, 2023; remains Senior Advisor through Dec 31, 2023.
- Separation agreement provides 9 months base salary, 2023 bonus, COBRA, and equity acceleration.
- Carrie Lazorchak appointed CRO effective Nov 1, 2023; formerly CRO at SimilarWeb.
- Mirisola, first employee hired in 2011, helped grow revenue from $0 to $240M.
- Lazorchak will lead sales organization to expand client base and drive operational excellence.

## SEC filing metadata
- accession: 0000950170-23-052203
- form_type: 8-K
- ticker: DH
- cik: 0001861795
- company_name: Definitive Healthcare Corp.
- filed_at: 2023-10-05T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1861795/000095017023052203/0000950170-23-052203-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1861795/000095017023052203/dh-20231002.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-052203
- JSON: https://secwatch.observer/filing/0000950170-23-052203.json
- Plain text: https://secwatch.observer/filing/0000950170-23-052203.txt

## Key facts
- Executive change
  Joseph Mirisola was appointed as Senior Advisor at Definitive Healthcare Corp..
  - Action: appointed
  - Role: Senior Advisor
  source text: In addition, Mr. Mirisola will cease to be Chief Revenue Officer effective November 1, 2023 and will, at such time, become a Senior Advisor.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1861795/000095017023052203/0000950170-23-052203-index.htm

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