---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-025372"
form_type: "8-K"
ticker: "PRME"
cik: "0001894562"
company_name: "Prime Medicine, Inc."
filed_at: "2026-04-16T23:59:59+00:00"
generated_at: "2026-05-15T05:52:12.161655+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Prime Medicine appoints Svetlana Makhni as CFO effective April 16, 2026

## Summary
- Svetlana Makhni named CFO; base salary $495K, sign-on bonus $40K, target bonus 40%.
- Granted option to purchase 800K shares (time-based vesting over 4 years) and 100K milestone-based option.
- Allan Reine steps down as principal financial officer but remains CEO.
- Makhni has 20+ years biotech/healthcare CFO and investment banking experience.

## SEC filing metadata
- accession: 0001628280-26-025372
- form_type: 8-K
- ticker: PRME
- cik: 0001894562
- company_name: Prime Medicine, Inc.
- filed_at: 2026-04-16T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1894562/000162828026025372/0001628280-26-025372-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1894562/000162828026025372/prme-20260407.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-025372
- JSON: https://secwatch.observer/filing/0001628280-26-025372.json
- Plain text: https://secwatch.observer/filing/0001628280-26-025372.txt

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