---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-365287"
form_type: "8-K"
ticker: "RGNX"
cik: "0001590877"
company_name: "REGENXBIO Inc."
filed_at: "2026-08-25T20:57:06+00:00"
generated_at: "2026-08-25T20:59:14.046169+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# REGENXBIO appoints Greg Ciongoli to board; two directors retire effective Aug 25, 2026

## Summary
- Ciongoli elected as independent Class II director, term expires at 2029 annual meeting.
- Granted initial equity award with $550,000 fair value (75% option, 25% RSUs), exercise price $8.91, 3-year vesting.
- Annual board retainer of $45,000 plus $10,000 audit and $5,000 nominating committee retainers.
- Jean Bennett and Jerry Karabelas resigned as directors; will serve as advisors until February 2027.
- Board size reduced to nine directors effective immediately.

## SEC filing metadata
- accession: 0001193125-26-365287
- form_type: 8-K
- ticker: RGNX
- cik: 0001590877
- company_name: REGENXBIO Inc.
- filed_at: 2026-08-25T20:57:06+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1590877/000119312526365287/0001193125-26-365287-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1590877/000119312526365287/rgnx-20260825.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-365287
- JSON: https://secwatch.observer/filing/0001193125-26-365287.json
- Plain text: https://secwatch.observer/filing/0001193125-26-365287.txt

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