---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-043231"
form_type: "8-K"
ticker: "MIR"
cik: "0001809987"
company_name: "Mirion Technologies, Inc."
filed_at: "2025-09-30T23:59:59+00:00"
generated_at: "2026-05-17T05:17:29.276636+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Mirion closes $410M equity & $375M convertible debt offerings for Paragon acquisition

## Summary
- Common stock offering of 19,906,322 shares at $21.35/share, net proceeds ~$409.7M.
- 0.00% Convertible Senior Notes due 2031 priced at $375M principal, net ~$365.2M.
- Both offerings upsized from earlier announced sizes ($350M equity, $250M notes).
- Proceeds to fund $38M capped calls and planned acquisition of Paragon Energy Solutions.
- Initial conversion price ~$28.82/share, a 35% premium to the stock offering price.

## SEC filing metadata
- accession: 0001628280-25-043231
- form_type: 8-K
- ticker: MIR
- cik: 0001809987
- company_name: Mirion Technologies, Inc.
- filed_at: 2025-09-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1809987/000162828025043231/0001628280-25-043231-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1809987/000162828025043231/mir-20250925.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-043231
- JSON: https://secwatch.observer/filing/0001628280-25-043231.json
- Plain text: https://secwatch.observer/filing/0001628280-25-043231.txt

## Key facts
- Debt Financings
  Mirion Technologies, Inc. incurred convertible notes of $375.0 million aggregate principal amount with U.S. Bank Trust Company, National Association at 0.00% maturing October 1, 2031.
  - Instrument: convertible notes
  - Principal: $375.0 million aggregate principal amount
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 0.00%
  - Maturity: October 1, 2031
  - Event: incurrence
  source text: On September 30, 2025, the Company completed its previously announced private offering (the “Convertible Notes Offering”) of $375.0 million aggregate principal amount of 0.00% Convertible Senior Notes due 2031
  evidence_url: https://www.sec.gov/Archives/edgar/data/1809987/000162828025043231/0001628280-25-043231-index.htm

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