---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-423376"
form_type: "8-K"
ticker: "RGNX"
cik: "0001590877"
company_name: "REGENXBIO Inc."
filed_at: "2026-10-16T11:00:14+00:00"
generated_at: "2026-10-16T11:05:15.424621+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# REGENXBIO director Kenneth T. Mills resigns effective Oct 21; George Migausky named Chairman

## Summary
- Kenneth T. Mills resigned from REGENXBIO's board on October 14, 2026, effective October 21, 2026, after becoming chief executive officer of another company.
- The company said Mills' decision was not related to any disagreement with REGENXBIO on matters of operations, policies, or practices.
- The board appointed George Migausky as Chairman of the Board in connection with Mills' departure.
- Daniel Tassé stepped down as Lead Independent Director because the new Chairman is an independent director, but remains a member of the board.
- Filing signed October 16, 2026 by Patrick J. Christmas II, Executive Vice President, Chief Strategy & Legal Officer.

## SEC filing metadata
- accession: 0001193125-26-423376
- form_type: 8-K
- ticker: RGNX
- cik: 0001590877
- company_name: REGENXBIO Inc.
- filed_at: 2026-10-16T11:00:14+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1590877/000119312526423376/0001193125-26-423376-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1590877/000119312526423376/rgnx-20261014.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-423376
- JSON: https://secwatch.observer/filing/0001193125-26-423376.json
- Plain text: https://secwatch.observer/filing/0001193125-26-423376.txt

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