---
schema_version: "secwatch.filing_event.v1"
accession: "0001823239-23-000072"
form_type: "8-K"
ticker: "MRVI"
cik: "0001823239"
company_name: "MARAVAI LIFESCIENCES HOLDINGS, INC."
filed_at: "2023-07-20T23:59:59+00:00"
generated_at: "2026-06-13T05:44:51.990997+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Maravai LifeSciences announces director resignation and appointment of Dr. John DeFord to board

## Summary
- Robert B. Hance resigned from Board effective July 19, 2023; resignation unrelated to any disagreement with management.
- Dr. John DeFord appointed to Board effective July 20, 2023 to fill vacancy; will serve as Class II director through 2025 annual meeting.
- DeFord is Chairman, CEO and President of Samothrace Medical Innovations; former EVP & CTO of Becton, Dickinson and Company.
- DeFord also serves on boards of Nordson Corporation, NuVasive, and several private medical device companies.

## SEC filing metadata
- accession: 0001823239-23-000072
- form_type: 8-K
- ticker: MRVI
- cik: 0001823239
- company_name: MARAVAI LIFESCIENCES HOLDINGS, INC.
- filed_at: 2023-07-20T23:59:59+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/1823239/000182323923000072/0001823239-23-000072-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1823239/000182323923000072/mrvi-20230719.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001823239-23-000072
- JSON: https://secwatch.observer/filing/0001823239-23-000072.json
- Plain text: https://secwatch.observer/filing/0001823239-23-000072.txt

## Key facts
- Executive change
  John DeFord was appointed as Director at MARAVAI LIFESCIENCES HOLDINGS, INC..
  - Action: appointed
  - Role: Director
  source text: On July 20, 2023, the Board appointed John DeFord, Ph.D. to the Board, effective as of such date (the “Appointment Date”), to fill the vacancy on the Board created by Mr. Hance’s resignation.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1823239/000182323923000072/0001823239-23-000072-index.htm
- Executive change
  Robert B. Hance resigned as Director at MARAVAI LIFESCIENCES HOLDINGS, INC..
  - Action: resigned
  - Role: Director
  source text: On July 19, 2023, Robert B. Hance, a director of Maravai LifeSciences Holdings, Inc. (the “Company”), informed the Board of Directors of the Company (the “Board”) of his resignation from the Board, to be effective as of such date.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1823239/000182323923000072/0001823239-23-000072-index.htm

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