---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-193481"
form_type: "8-K"
ticker: "RGEN"
cik: "0000730272"
company_name: "REPLIGEN CORP"
filed_at: "2025-09-02T23:59:59+00:00"
generated_at: "2026-05-17T09:03:58.408330+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Repligen appoints Violetta Hughes as Chief Accounting Officer, effective Sept 1, 2025

## Summary
- Replaces Jason K. Garland as principal accounting officer; Garland remains CFO focusing on strategy.
- Annual base salary $395,000, signing bonus $150,000, target annual performance bonus up to 50% of base.
- Equity award of $750,000 total ($500k RSUs, $250k options) vesting over 5 years.
- Ms. Hughes previously CAO at Azenta (AZTA) and Akebia Therapeutics (AKBA); 25+ years experience.

## SEC filing metadata
- accession: 0001193125-25-193481
- form_type: 8-K
- ticker: RGEN
- cik: 0000730272
- company_name: REPLIGEN CORP
- filed_at: 2025-09-02T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/730272/000119312525193481/0001193125-25-193481-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/730272/000119312525193481/d932295d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-193481
- JSON: https://secwatch.observer/filing/0001193125-25-193481.json
- Plain text: https://secwatch.observer/filing/0001193125-25-193481.txt

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