---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-138959"
form_type: "8-K"
ticker: null
cik: "0001599901"
company_name: "Avidity Biosciences, Inc."
filed_at: "2024-05-15T23:59:59+00:00"
generated_at: "2026-06-01T23:05:31.752986+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Avidity Biosciences appoints former Roche SVP Simona Skerjanec as Class II director

## Summary
- Ms. Skerjanec, 59, former Senior Vice President and Global Neuroscience Head at Roche (2015-2023), appointed effective May 14, 2024.
- She fills the Class II vacancy resulting from Eric Mosbrooker's resignation in December 2023.
- She receives options vesting monthly over three years and cash compensation per the Non-Employee Director Compensation Program.
- Board determined she is independent under Nasdaq listing requirements.
- No arrangements or transactions requiring disclosure under Item 404(a) of Regulation S-K.

## SEC filing metadata
- accession: 0001193125-24-138959
- form_type: 8-K
- cik: 0001599901
- company_name: Avidity Biosciences, Inc.
- filed_at: 2024-05-15T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1599901/000119312524138959/0001193125-24-138959-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1599901/000119312524138959/d801929d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-138959
- JSON: https://secwatch.observer/filing/0001193125-24-138959.json
- Plain text: https://secwatch.observer/filing/0001193125-24-138959.txt

## Key facts
- Executive change
  Simona Skerjanec was appointed as Director at Avidity Biosciences, Inc..
  - Action: appointed
  - Role: Director
  source text: appointed Simona Skerjanec, M.Pharm, MBA as a director, effective May 14, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1599901/000119312524138959/0001193125-24-138959-index.htm

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