---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-225380"
form_type: "8-K"
ticker: "RGEN"
cik: "0000730272"
company_name: "REPLIGEN CORP"
filed_at: "2026-05-15T12:09:23+00:00"
generated_at: "2026-05-15T12:11:30.163880+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Repligen 2026 annual meeting: all proposals pass; director Muir gets 25.7% against

## Summary
- All nine director nominees elected; Glenn P. Muir received highest opposition (13.3M against, 25.7% of votes cast).
- Karen A. Dawes and Carrie Eglinton Manner each received over 9M against votes (17.7% and 19.1%, respectively).
- Ratification of Ernst & Young as independent auditor passed with 53.1M for vs 900k against.
- Advisory vote on executive compensation approved: 50.3M for, 1.5M against, 51k abstain.
- Quorum of 54.0M shares represented out of 56.4M outstanding shares.

## SEC filing metadata
- accession: 0001193125-26-225380
- form_type: 8-K
- ticker: RGEN
- cik: 0000730272
- company_name: REPLIGEN CORP
- filed_at: 2026-05-15T12:09:23+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/730272/000119312526225380/0001193125-26-225380-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/730272/000119312526225380/rgen-20260514.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-225380
- JSON: https://secwatch.observer/filing/0001193125-26-225380.json
- Plain text: https://secwatch.observer/filing/0001193125-26-225380.txt

## Key facts
- Shareholder Votes
  REPLIGEN CORP shareholders approved Ratification of the Appointment of Independent Registered Public Accounting Firm at the 2026-05-14 meeting.
  - Proposal: auditor ratification
  - Outcome: passed
  - Meeting: 2026-05-14
  source text: Proposal 2 - Ratification of the Appointment of Independent Registered Public Accounting Firm For Against Abstain Broker Non-Votes 53,092,462 900,084 29,813 —
  evidence_url: https://www.sec.gov/Archives/edgar/data/730272/000119312526225380/0001193125-26-225380-index.htm
- Shareholder Votes
  REPLIGEN CORP shareholders approved Election of nine director nominees to the Board of Directors at the 2026-05-14 meeting.
  - Proposal: director election
  - Outcome: passed
  - Meeting: 2026-05-14
  source text: Proposal 1 - Election of the Board of Directors Nominee For Against Abstain Broker Non-Votes Olivier Loeillot 51,750,665 116,198 31,383 2,124,113 Martin Madaus, D.V.M., Ph.D. 51,091,036 775,295 31,915 2,124,113 Karen A. Dawes 42,726,647 9,132,553 39,046 2,124,113 Nicolas M. Barthelemy 51,526,602 339,481 32,163 2,124,113 Carrie Eglinton Manner 41,987,697 9,871,020 39,529 2,124,113 Konstantin Konstantinov, Ph.D. 51,137,462 728,874 31,910 2,124,113 Rohin Mhatre, Ph.D. 51,649,920 215,384 32,942 2,124,113 Glenn P. Muir 38,592,456 13,265,484 40,306 2,124,113 Margaret A. Pax 51,011,846 849,103 37,297 2,124,113
  evidence_url: https://www.sec.gov/Archives/edgar/data/730272/000119312526225380/0001193125-26-225380-index.htm
- Shareholder Votes
  REPLIGEN CORP shareholders approved Advisory Vote on Compensation of the Named Executive Officers at the 2026-05-14 meeting.
  - Proposal: say on pay
  - Outcome: passed
  - Meeting: 2026-05-14
  source text: Proposal 3 - Advisory Vote on Compensation of the Named Executive Officers For Against Abstain Broker Non-Votes 50,333,558 1,513,515 51,173 2,124,113
  evidence_url: https://www.sec.gov/Archives/edgar/data/730272/000119312526225380/0001193125-26-225380-index.htm

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