---
schema_version: "secwatch.filing_event.v1"
accession: "0001193805-21-001738"
form_type: "8-K"
ticker: "ARCT"
cik: "0001768224"
company_name: "Arcturus Therapeutics Holdings Inc."
filed_at: "2021-12-13T23:59:59+00:00"
generated_at: "2026-06-28T01:46:49.343827+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Arcturus appoints Dr. Jing Marantz to board of directors effective Dec. 7, 2021

## Summary
- Dr. Marantz, SVP Head of Medical Affairs at Acceleron (Merck subsidiary), joins Arcturus board with immediate effect.
- She brings experience from Alnylam, Alexion, Biogen; led global product launches for ONPATTRO and GIVLAARI.
- Board also adopted new Code of Business Conduct and Ethics replacing prior code effective Dec. 7, 2021.
- No other material changes; no financial impact disclosed.

## SEC filing metadata
- accession: 0001193805-21-001738
- form_type: 8-K
- ticker: ARCT
- cik: 0001768224
- company_name: Arcturus Therapeutics Holdings Inc.
- filed_at: 2021-12-13T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 5.05, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1768224/000119380521001738/0001193805-21-001738-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1768224/000119380521001738/e621155_8k-at.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193805-21-001738
- JSON: https://secwatch.observer/filing/0001193805-21-001738.json
- Plain text: https://secwatch.observer/filing/0001193805-21-001738.txt

## Key facts
- Executive change
  Jing Marantz was appointed as director at Arcturus Therapeutics Holdings Inc..
  - Action: appointed
  - Role: director
  source text: the Board subsequently appointed Dr. Jing Marantz to serve as a director of the Company, effective as of December 7, 2021
  evidence_url: https://www.sec.gov/Archives/edgar/data/1768224/000119380521001738/0001193805-21-001738-index.htm

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