---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-119546"
form_type: "8-K"
ticker: "NVAX"
cik: "0001000694"
company_name: "NOVAVAX INC"
filed_at: "2023-11-17T23:59:59+00:00"
generated_at: "2026-06-07T23:46:12.631211+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Novavax appoints John Trizzino as President & COO; Herrmann to retire, Casey to join as CLO

## Summary
- John Trizzino appointed President and COO (new role), effective November 20, 2023; base salary increased by $50k to $570,000.
- John Herrmann to retire as Chief Legal Officer and Corporate Secretary, effective December 8, 2023.
- Mark Casey to succeed Herrmann as Chief Legal Officer and Corporate Secretary, effective December 11, 2023.
- Herrmann to serve as Senior Advisor under consulting agreement; monthly fee of $44,167 through December 10, 2024, with equity treatment.

## SEC filing metadata
- accession: 0001104659-23-119546
- form_type: 8-K
- ticker: NVAX
- cik: 0001000694
- company_name: NOVAVAX INC
- filed_at: 2023-11-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1000694/000110465923119546/0001104659-23-119546-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1000694/000110465923119546/tm2331053d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-119546
- JSON: https://secwatch.observer/filing/0001104659-23-119546.json
- Plain text: https://secwatch.observer/filing/0001104659-23-119546.txt

## Key facts
- Executive change
  John A. Herrmann III departed as Chief Legal Officer and Corporate Secretary at NOVAVAX INC.
  - Action: retire
  - Role: Chief Legal Officer and Corporate Secretary
  source text: John A. Herrmann III informed the Company of his intention to retire from his role as Chief Legal Officer and Corporate Secretary, effective December 8, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1000694/000110465923119546/0001104659-23-119546-index.htm

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