---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-001870"
form_type: "8-K"
ticker: "ASRT"
cik: "0001808665"
company_name: "Assertio Holdings, Inc."
filed_at: "2024-01-05T23:59:59+00:00"
generated_at: "2026-06-07T03:17:33.712005+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Assertio Holdings CEO Daniel Peisert departs; board member Heather Mason named interim CEO

## Summary
- CEO Daniel Peisert separated effective Jan 2, 2024; entitled to severance under management continuity agreement.
- Heather Mason appointed Interim CEO; base salary $540k/yr, bonus up to $200k, stock option for 550,000 shares.
- Board committee changes: Peter Staple to Audit, Sravan Emany to Compensation, William McKee chairs Nominating & Governance.
- Permanent CEO search initiated; Mason's term capped at six months unless extended by agreement.

## SEC filing metadata
- accession: 0001104659-24-001870
- form_type: 8-K
- ticker: ASRT
- cik: 0001808665
- company_name: Assertio Holdings, Inc.
- filed_at: 2024-01-05T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1808665/000110465924001870/0001104659-24-001870-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1808665/000110465924001870/tm241594d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-001870
- JSON: https://secwatch.observer/filing/0001104659-24-001870.json
- Plain text: https://secwatch.observer/filing/0001104659-24-001870.txt

## Key facts
- Executive change
  Heather L. Mason was appointed as Interim Chief Executive Officer at Assertio Holdings, Inc..
  - Action: appointed
  - Role: Interim Chief Executive Officer
  source text: the Board of Directors of the Company (the “Board”) appointed Heather L. Mason, currently a member of the Board, to serve as the Company’s Interim Chief Executive Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1808665/000110465924001870/0001104659-24-001870-index.htm
- Executive change
  Daniel A. Peisert departed as President and Chief Executive Officer at Assertio Holdings, Inc..
  - Action: separated from service
  - Role: President and Chief Executive Officer
  source text: Effective as of January 2, 2024, Daniel A. Peisert, President and Chief Executive Officer and a director of Assertio Holdings, Inc. (the “Company”) separated from service as President and Chief Executive Officer of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1808665/000110465924001870/0001104659-24-001870-index.htm

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