---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-22-124889"
form_type: "8-K"
ticker: "PTCT"
cik: "0001070081"
company_name: "PTC THERAPEUTICS, INC."
filed_at: "2022-12-06T23:59:59+00:00"
generated_at: "2026-06-21T08:34:14.221109+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# PTC Therapeutics board member Dawn Svoronos resigns, enters consulting agreement; bylaws updated

## Summary
- Dawn Svoronos resigned from the board effective Dec 6, 2022; no disagreement with the company.
- Enters consulting agreement at $300/hour, term through March 31, 2023.
- Bylaws amended to permit virtual-only shareholder meetings and adjust proxy procedures.
- New exclusive forum provisions: Delaware Chancery for derivative claims, federal courts for Securities Act claims.

## SEC filing metadata
- accession: 0001104659-22-124889
- form_type: 8-K
- ticker: PTCT
- cik: 0001070081
- company_name: PTC THERAPEUTICS, INC.
- filed_at: 2022-12-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 5.02, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1070081/000110465922124889/0001104659-22-124889-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1070081/000110465922124889/tm2232094d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-22-124889
- JSON: https://secwatch.observer/filing/0001104659-22-124889.json
- Plain text: https://secwatch.observer/filing/0001104659-22-124889.txt

## Key facts
- Executive change
  Dawn Svoronos resigned as director at PTC THERAPEUTICS, INC..
  - Action: resigned
  - Role: director
  source text: On December 5, 2022, Dawn Svoronos, a member of the board of directors (the “Board”) of PTC Therapeutics, Inc. (the “Company”), notified the Company of her resignation from the Board effective December 6, 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1070081/000110465922124889/0001104659-22-124889-index.htm
- Governance Changes
  PTC THERAPEUTICS, INC.: Amended and restated bylaws to eliminate stockholder list requirement at meetings, permit remote meetings, update proxy rules, and add exclusive forum provisions (effective 2022-12-05).
  - Change: bylaw amendment
  - Effective: 2022-12-05
  source text: On December 5, 2022, the Board approved an amendment and restatement of the Company’s Amended and Restated Bylaws, (as so amended and restated, the “Amended and Restated Bylaws”), effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1070081/000110465922124889/0001104659-22-124889-index.htm

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