---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-24-000524"
form_type: "8-K"
ticker: "PRME"
cik: "0001894562"
company_name: "Prime Medicine, Inc."
filed_at: "2024-01-05T23:59:59+00:00"
generated_at: "2026-06-07T03:31:31.357487+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Prime Medicine appoints Allan Reine as CFO, effective Jan 17, 2024

## Summary
- Allan Reine named CFO and principal financial officer; previously CFO of Foghorn Therapeutics.
- Receives $500k base salary, $176k sign-on bonus, 40% target annual bonus, and option grants (600k time-vesting shares + 250k milestone-based shares).
- Carman Alenson transitions from interim CFO to SVP Finance and CAO; remains principal accounting officer.

## SEC filing metadata
- accession: 0001628280-24-000524
- form_type: 8-K
- ticker: PRME
- cik: 0001894562
- company_name: Prime Medicine, Inc.
- filed_at: 2024-01-05T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1894562/000162828024000524/0001628280-24-000524-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1894562/000162828024000524/prme-20240104.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-24-000524
- JSON: https://secwatch.observer/filing/0001628280-24-000524.json
- Plain text: https://secwatch.observer/filing/0001628280-24-000524.txt

## Key facts
- Executive change
  Allan Reine was appointed as Chief Financial Officer at Prime Medicine, Inc..
  - Action: appointed
  - Role: Chief Financial Officer
  source text: On January 4, 2024, the Board of Directors (the “Board”) of Prime Medicine, Inc. (the “Company”) appointed Allan Reine as the Chief Financial Officer and the principal financial officer of the Company effective as of January 17, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1894562/000162828024000524/0001628280-24-000524-index.htm

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