---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-119479"
form_type: "8-K"
ticker: "LFST"
cik: "0001845257"
company_name: "LifeStance Health Group, Inc."
filed_at: "2025-05-14T23:59:59+00:00"
generated_at: "2026-05-21T10:03:52.340573+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# LifeStance appoints Vaughn Paunovich as CTO; CDO Pantaleoni to depart July 1

## Summary
- Vaughn Paunovich appointed CTO effective June 9, 2025; previously EVP at Amwell and CIO of Optum Health.
- Pablo Pantaleoni (Chief Digital Officer) to depart July 1, 2025; receives severance including base salary and 12 months COBRA.
- Pantaleoni's separation agreement includes accelerated vesting of RSUs after Jan 1, 2026 and restrictive covenants.
- Paunovich will lead technology strategy to improve patient and clinician digital experience for mental health care.

## SEC filing metadata
- accession: 0001193125-25-119479
- form_type: 8-K
- ticker: LFST
- cik: 0001845257
- company_name: LifeStance Health Group, Inc.
- filed_at: 2025-05-14T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1845257/000119312525119479/0001193125-25-119479-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1845257/000119312525119479/d943776d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-119479
- JSON: https://secwatch.observer/filing/0001193125-25-119479.json
- Plain text: https://secwatch.observer/filing/0001193125-25-119479.txt

## Key facts
- Executive change
  Vaughn Paunovich was appointed as Chief Technology Officer at LifeStance Health Group, Inc..
  - Action: appointed
  - Role: Chief Technology Officer
  source text: The Company appointed Vaughn Paunovich to serve as the Company’s new Chief Technology Officer, effective as of June 9, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1845257/000119312525119479/0001193125-25-119479-index.htm
- Executive change
  Pablo Pantaleoni departed as Chief Digital Officer at LifeStance Health Group, Inc..
  - Action: will be leaving
  - Role: Chief Digital Officer
  source text: On May 14, 2025, LifeStance Health Group, Inc. (the “Company”) announced that, effective July 1, 2025 (the “Transition Date”), Pablo Pantaleoni, the Company’s Chief Digital Officer will be leaving the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1845257/000119312525119479/0001193125-25-119479-index.htm

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